Wage Ratna Rohaeni - Academia.edu (original) (raw)

Papers by Wage Ratna Rohaeni

Biodiversitas Journal of Biological Diversity

The number of grains per panicle is one of the important factors determining the yields in rice. ... more The number of grains per panicle is one of the important factors determining the yields in rice. This study aimed to capture the panicle branching pattern of different rice varieties grown in different environments with various planting systems. The assessment was conducted in West Java during the planting season of 2020. The panicle of new high-yielding and local rice varieties was collected from 23 various rice-growing sites. The results revealed that the variance due to genotype, environment, and interaction between genotype and environment were significant for panicle branching trait. Two rice genotypes, such as Padjadjaran and Inpari 45 were stable and did not show any change when they were grown in the various environments with different agronomical practices. Whereas, Inpari 32, Cakrabuana, and Inpari IR Nutri Zinc showed different performances at different growing sites and planting systems. The characters of PL, NPB, NSB, PBL, NGPB, TLPB, TLSB, SbperPB, TNGSB and TFG showed positive and significant correlation with the number of total grains per panicle.

Proceedings of the International Seminar on Promoting Local Resources for Sustainable Agriculture and Development (ISPLRSAD 2020), 2021

Pregnant mothers are a nutrition-prone group. Lack of energy chronic has impacts on the fetal and... more Pregnant mothers are a nutrition-prone group. Lack of energy chronic has impacts on the fetal and toddler growth, one of it is stunting. The prevalence of stunting in rural areas are higher than those in urban. To overcome the stunting, Ministry of Agriculture through Balitbangtan has released Inpari Nutri Zinc, a nutritious superior rice variety (SRV). This study aims to design an effective channel of propagating the Nutri Zinc seed by collaborate with local stakeholders. The study was done in March 2020 in Bantargebang, Sukabumi. Data was collected through Focus Group Discussion with local stakeholders in District and sub district that contribute with the SRV propagation: the officers, midwife, extension, and farmer group. Result showed that channeling the program with proper stakeholders and target location will establish a successful of the SRV propagation. The collaborated stakeholders were divided from district and sub-district officers. The taskforce in both sites were designed and comprise of a local officer, a village midwife, and an extension. Furthermore, farmers groups managed the propagation and assisted by an extension, where the yield produced will use to support stunting and to provide seed for next farming season.

IOP Conference Series: Earth and Environmental Science, 2021

Fe and Zinc deficiency is one of the most prevalence micro nutrient disorder in Indonesia. Increa... more Fe and Zinc deficiency is one of the most prevalence micro nutrient disorder in Indonesia. Increasing of Fe and Zn content in rice grain is expected to be useful to reduce the micronutrient deficiency. This research was aimed to identify rice varieties containing high Fe and Zn content and initially study the correlation among some related traits. The experiment was conducted in October – December 2016 by testing 176 released varieties and 4 elite rice lines. The samples were prepared as brown rice. Fe and Zn contents were measured using XRF Oxford machine which is validated by ICP method. The results showed that Fe content of the tested genotypes is normally distributed ranged from 9.70 ppm to 17.40 ppm with the mean of 13.03 ppm and the Zn content is not normally distributed ranged from 15.80 ppm to 31.10 ppm with the mean of 22.41 ppm. Majority of the released rice varieties in Indonesia had lower Fe and Zn content compared to the most popular variety, Ciherang (12.20 ppm and 24....

IOP Conference Series: Earth and Environmental Science, 2021

The prevalence of Zn deficiency in Indonesia is considerably high. Development of variety having ... more The prevalence of Zn deficiency in Indonesia is considerably high. Development of variety having high nutrient or called as biofortification supposed to be effective and efficient to combat malnutrition such as Zn deficiency. Zn fertilizer application was reported to be effective to increase rice Zn content. ICRR in collaboration with IRRI and Harvest Plus had initiated testing rice genotypes having high Zn content. The aim of this research was to initially study of Zn fertilizer, especially ZnSO4, effect to Zn content in the rice grains and to select genotypes having high the Zn content. The trial was conducted during Wet Season 2016 in Subang, West Java following split plot design of three replications with main plot of two level ZnSO4 fertilizer applications and sub plot of 24 rice genotypes. Transplanting was conducted at 21 days after sowing into 2 m x 3 m plot with planting space of 20 cm x 20 cm. The results showed that there is interaction between genotype and Zn fertilizer ...

IOP Conference Series: Earth and Environmental Science, 2021

Drought is one of the major constraints of rice production in Indonesia. Climate change increases... more Drought is one of the major constraints of rice production in Indonesia. Climate change increases the risk of drought incidences. The evaluation of drought resisting rice genotypes available in Indonesia would hopefully find and enhance such resistance which could be utilized to be further tested in releasing a variety or donor parent within the drought-resistant breeding program. Raised bed system (RBS) is a relatively reliable method to screen drought resistance up to generative growth phase. This research aimed to screen 69 rice genotypes including 26 IRRI accession included in 3000 rice genome sequencing projects, 29 elite lines, 6 old released variety, 6 released variety, and each of susceptible and resistant drought check variety raised bed screening system. The trial was conducted in RBS facility in ICRR from January to May 2017 following a randomized complete block design of two replications. The materials were directly planted in a 10 hill row with planting space of 20 cm x...

Jurnal Penelitian Pertanian Tanaman Pangan, 2020

Brown plant hopper (BPH) is one of the main pest of rice in Indonesia and it occurred every years... more Brown plant hopper (BPH) is one of the main pest of rice in Indonesia and it occurred every years with fluctuate acreage. BPH is also vector of Rice Ragged Stunt Virus (RRSV) and Rice Grassy Stunt Virus (RGSV). Green Super Rice (GSR) was designed to have resistance to major pests and diseases so that it need less pesticides and thus save ro environment. GSR was developed in IRRI and China and was tested in Indonesia since 2009 until now (2019). This research was aimed to study the genetic variability and heritability of 26 selected GSR lines to RRSV and RGSV along with four check varieties. The experiment was conducted in ICRR Sukamandi and Pusakanagara Experimental Station. The experiment was arranged following randomized complete block design with three replications. Transplanting was done into 21 days old seedling into 25 cm x 25 cm planting space of 1 m x 1 m plot. BPH and virus investation was occured narturally due to BPH outbreak along the season (DS 2010). Percentage...

IOP Conference Series: Earth and Environmental Science, 2019

Rohaeni WR, Hastini T. 2015. Inventory of local rice varieties in Ciater, Subang District, West J... more Rohaeni WR, Hastini T. 2015. Inventory of local rice varieties in Ciater, Subang District, West Java. Pros Sem Nas Masy Biodiv Indon 1 (2): 189-193. Local varieties are important genetic resources that must be conserved to support rice breeding program. Ciater is situated in Subang District, West Java where local rice varieties are still cultivated by farmers. However, information about the rice varieties is very limited. This inventory is aimed to obtain information and to collect germplasm of the rice varieties in Ciater area, Subang District-West Java. The research was done from March to Juni 2014. A total of 12 accessions consisting of 5 sticky rice varieties and 7 local varieties was collected and mostly found in Cibeusi village. The rice varieties have harvesting period in an average of about 6 months. They are characterized by a low number of tiller, relatively high stem, and tailed grain. The cultivation system was done by using integrated crop management technology with local customs.

IOP Conference Series: Earth and Environmental Science, 2022

Drought tolerance is important trait for rice. Developing simple system for drought tolerance scr... more Drought tolerance is important trait for rice. Developing simple system for drought tolerance screening will increase efficiency and effectiveness of breeding for the certain purpose. This research aimed to screen selected variety for drought under limited semi controlled space system. The trial was conducted at the limited open space with controlled irrigation and drainage system in the area of Indonesian Centre of Rice Research green houses in Subang, West Java, from July to November 2019. Twenty varieties selected from previous drought screenings using concrete box method were transplanted at 21 days after sowing with planting space of 20 x 20 cm 1 – 3 seedling/hill in a single row of 10 plants followed randomized complete block design with two replications. The materials were watered for 4 weeks since transplanting. Re-watering was given until harvesting since IR 20 (drought sensitive check) was completely dry. The results showed variation level of drought tolerance among the te...

Biodiversitas, Jan 18, 2023

Jurnal AgroBiogen

Argo is a local swamp rice from Kalimantan which is widely cultivated by local farmers. Explorati... more Argo is a local swamp rice from Kalimantan which is widely cultivated by local farmers. Exploration activities in Kalimantan found two types of local rice named Argo but demonstrated different phenotypes. Therefore, genotypic verification is needed to determine the differences between the two Argo rice genotypes. DNA fingerprint could help genotype verification rapidly and the result is not influenced by environmental factors. The aims of this study were to determine the level of similarity of Argo-1 and Argo-2 with swamp rice and other irrigated rice genotypes using microsatellite markers. A total of eight improved and local varieties were used as genetic material with the two local rice Argo (Argo-1 and Argo-2). The rice genotypes were analyzed by using eight microsatellite markers. The results of the molecular analysis showed that the two types of Argo showed different DNA bands based on the RM228 marker but genetically they were closely related. The genetic distance between the ...

Agrotrop: Journal on Agriculture Science, 2015

Phenotypic of Soybean at Two Extreme Condition of Light Intensity. Cultivation of soybean in row ... more Phenotypic of Soybean at Two Extreme Condition of Light Intensity. Cultivation of soybean in row rubber area was one of extensification programme for improving national soybean production. The problem on row rubber area was the low light intensity that could disturb soybean growth. Plant breeding for creating tolerant variety for low light intensity was doing until now. Bogor Agricultural University had many lines for being candidate of tolerant variety. F6 soybean population from single seed descent methode need to explored for that trait on low light intensity condition. The aim of this research was to know the differences of soybean phenotypic between on low light intensity and full light intensity condition. The research was done on March-May 2009. Randomized complete block design with 3 replication was using as experimental design which lines as the treatment on two condition (low light and full light condition). The result saw that low light intensity was changing type of soybean growth, determinate became indeterminate type of growth. Low light intensity made soybean became early on flowering fase and water content on seed was increase. Low light intensity made decreasing the productivity until 37.25% than full light intensity condition.

Quick Evaluation for Cold Tolerant Line By Using Thermogradientbar. Lowtemperature stress was the... more Quick Evaluation for Cold Tolerant Line By Using Thermogradientbar. Lowtemperature stress was the main obstacle for rice growth in high elevation. Low temperaturestress greatly affect the vegetatif growth stage and generatif. There were required screening /quick test to determine the tolerance genotype for low temperature stress. Thermogradientbaris one quick screening tool that could potentially be used in the rice in the vegetatif phase.This study aimed to evaluate quickly for getting the tolerant rice lines on low temperaturestress. The study was conducted in November-December 2015 Biology Laboratory, LIPI. Atotal of 15 lines of upland rice and 3 checks were used in the testing. Gradient temperature onthermogradientbar tool were 12, 17, 18, 21, 22, 25, 26, 28, 31 oC. Seeds of each strain testedwith 5 replications. The number of replicates results show low temperature stress began tolook at the temperature of 18 oC. Genotype G3 (B12165D-MR-8-1-1-2), G4 (B11910D-MR-22-2), G5 (B1421...

PTT merupakan strategi dan metodologi peningkatan produktivitas padi yang sangat memperhatikan su... more PTT merupakan strategi dan metodologi peningkatan produktivitas padi yang sangat memperhatikan sumber daya setempat, sehingga pengkajian terhadap penerapan komponen teknologi PTT penting dilakukan. Tujuan: (1) melihat keragaan padi sawah masing–masing model dan (2) mengetahui produktivitas padi inbrida dengan menerapkan komponen PTT. Penelitian dilakukan di Bogor di lima lokasi, yaitu Bojong Picung, Gekbrong, Karangtengah, Tanggeung, dan Warungkondang menggunakan rancangan kelompok lengkap teracak dengan lima model teknologi PTT, termasuk teknologi petani sebagai control dan lima ulangan. Varietas yang digunakan sebagai tanaman indikator adalah Inpari 4. Hasil: perlakuan Model PTT memberikan pengaruh berbeda-beda antar-lokasi kajian. Model PTT berpengaruh nyata pada produktivitas di lokasi Karang tengah, sementara itu di lokasi lainnya tidak berpengaruh nyata Integrated crop management (ICM) is a strategy and methodology for improvement and productivity of rice to support accelerat...

Indonesian Journal of Agronomy, 2016

The objective of this research was to determine the trait variance in black soybean lines in term... more The objective of this research was to determine the trait variance in black soybean lines in terms of yield and yield components. The materials used were F8 lines generated from hybridization of two local varieties, i.e. black seeded Ceneng and greenish yellow seeded Godek, and then selected under single seed descent method, except SC-39-1, SC-62-2 and GC- 74-7 that were generated through bulk selection method. The results showed that the traits between plant genotypes were significantly different, except number of productive node and number of unfilled pod. Total variance was contributed more by number of filled pod, seed weight per plant and 100 seed weight. Seed weight per plant and 100 seed weight had high heritability with genetic variance and broad-sense heritability which were significantly different from zero. These characters are important for further selection to improve yields of black soybean lines.

The condition of rice field without any irrigation is one of the problems in the rainfed land. Th... more The condition of rice field without any irrigation is one of the problems in the rainfed land. This rice field only relies on the existence of water during the rainy day. This causes the limitation of water availability which affect plant growth. This study aimed to know the performance of the rice advance lines, estimated the value of genetic parameters and obtains the best line on drought condition. As many as 100 advance lines (> F8) for drought tolerant were tested using Augmented Design in five blocks. A total of six-check varieties were included in the experiment. The research was conducted at Dry Season of 2015 in ICRR-Sukamandi Experimental Field. The result showed that on the drought condition gained the average value for plant height as 103,44 cm, number of productive tillers as 12 tillers, percentage of filling pine grains reached 60,46%, leaf color index as 39,37, and weight of 1.000 grains averaged as 26,34 g, while weight grain per 5 clumps as 166,34 g. Yield trait ...

Saat ini produksi padi nasional sudah mencapai angka 56,54 juta ton GKG. Kementerian Pertanian pa... more Saat ini produksi padi nasional sudah mencapai angka 56,54 juta ton GKG. Kementerian Pertanian pada tahun 2020 mentargetkan peningkatan produksi padi nasional sebesar 7%. Aspek penting yang menjadi perhatian dalam peningkatan produksi padi tersebut antara lain adalah peningkatan efisiensi dan pelestarian lingkungan karena berkaitan dengan daya saing produksi berkelanjutan yang didasarkan pada agroekosistem padi. Petunjuk teknis penerapan Teknologi Budidaya Padi di berbagai Agroekosistem ini disusun sebagai acuan bagi para pihak yang akan menerapkan teknologi tersebut, selanjutnya diharapkan buku ini dapat bermanfaat.

Phenotypic of Soybean at Two Extreme Condition of Light Intensity. Cultivation of soybean inrow r... more Phenotypic of Soybean at Two Extreme Condition of Light Intensity. Cultivation of soybean inrow rubber area was one of extensification programme for improving national soybean production. Theproblem on row rubber area was the low light intensity that could disturb soybean growth. Plant breedingfor creating tolerant variety for low light intensity was doing until now. Bogor Agricultural University hadmany lines for being candidate of tolerant variety. F6 soybean population from single seed descentmethode need to explored for that trait on low light intensity condition. The aim of this research was toknow the differences of soybean phenotypic between on low light intensity and full light intensity condition.The research was done on March – May 2009. Randomized complete block design with 3 replicationwas using as experimental design which lines as the treatment on two condition (low light and full lightcondition). The result saw that low light intensity was changing type of soybean gro...

Selection on Segregating Generation of Paddy Lines for Rainfed. High yielding variety of paddy ad... more Selection on Segregating Generation of Paddy Lines for Rainfed. High yielding variety of paddy adapted for rainfed is not many developed until now. Just Inpari 38 that has been released successfully for rainfed areal. Segregating population is the basic for breeding activity. Indonesian Centre of Rice Research has been creating based population for creating new varieties adapted on ranfed environment. The aim of this research was for getting promising lines adapted on rainfed with good vigor, resistence form host and pest, and early maturity. This research was done at wet season in 2014 (November 2014 – March 2015) in rainfed areal, Margasari, Pasawahan district-Purwakarta, West Java. About 2694 lines were evaluated as genetic material. Bulk and Pedigree methods was being used on this research. The selection activity has done successfully with getting 637 best lines that has good score of vigorous (score 1 and 3) and healthy. There were consist of 21.19% from early generation, 63.26...

Biodiversitas Journal of Biological Diversity

The number of grains per panicle is one of the important factors determining the yields in rice. ... more The number of grains per panicle is one of the important factors determining the yields in rice. This study aimed to capture the panicle branching pattern of different rice varieties grown in different environments with various planting systems. The assessment was conducted in West Java during the planting season of 2020. The panicle of new high-yielding and local rice varieties was collected from 23 various rice-growing sites. The results revealed that the variance due to genotype, environment, and interaction between genotype and environment were significant for panicle branching trait. Two rice genotypes, such as Padjadjaran and Inpari 45 were stable and did not show any change when they were grown in the various environments with different agronomical practices. Whereas, Inpari 32, Cakrabuana, and Inpari IR Nutri Zinc showed different performances at different growing sites and planting systems. The characters of PL, NPB, NSB, PBL, NGPB, TLPB, TLSB, SbperPB, TNGSB and TFG showed positive and significant correlation with the number of total grains per panicle.

Proceedings of the International Seminar on Promoting Local Resources for Sustainable Agriculture and Development (ISPLRSAD 2020), 2021

Pregnant mothers are a nutrition-prone group. Lack of energy chronic has impacts on the fetal and... more Pregnant mothers are a nutrition-prone group. Lack of energy chronic has impacts on the fetal and toddler growth, one of it is stunting. The prevalence of stunting in rural areas are higher than those in urban. To overcome the stunting, Ministry of Agriculture through Balitbangtan has released Inpari Nutri Zinc, a nutritious superior rice variety (SRV). This study aims to design an effective channel of propagating the Nutri Zinc seed by collaborate with local stakeholders. The study was done in March 2020 in Bantargebang, Sukabumi. Data was collected through Focus Group Discussion with local stakeholders in District and sub district that contribute with the SRV propagation: the officers, midwife, extension, and farmer group. Result showed that channeling the program with proper stakeholders and target location will establish a successful of the SRV propagation. The collaborated stakeholders were divided from district and sub-district officers. The taskforce in both sites were designed and comprise of a local officer, a village midwife, and an extension. Furthermore, farmers groups managed the propagation and assisted by an extension, where the yield produced will use to support stunting and to provide seed for next farming season.

IOP Conference Series: Earth and Environmental Science, 2021

Fe and Zinc deficiency is one of the most prevalence micro nutrient disorder in Indonesia. Increa... more Fe and Zinc deficiency is one of the most prevalence micro nutrient disorder in Indonesia. Increasing of Fe and Zn content in rice grain is expected to be useful to reduce the micronutrient deficiency. This research was aimed to identify rice varieties containing high Fe and Zn content and initially study the correlation among some related traits. The experiment was conducted in October – December 2016 by testing 176 released varieties and 4 elite rice lines. The samples were prepared as brown rice. Fe and Zn contents were measured using XRF Oxford machine which is validated by ICP method. The results showed that Fe content of the tested genotypes is normally distributed ranged from 9.70 ppm to 17.40 ppm with the mean of 13.03 ppm and the Zn content is not normally distributed ranged from 15.80 ppm to 31.10 ppm with the mean of 22.41 ppm. Majority of the released rice varieties in Indonesia had lower Fe and Zn content compared to the most popular variety, Ciherang (12.20 ppm and 24....

IOP Conference Series: Earth and Environmental Science, 2021

The prevalence of Zn deficiency in Indonesia is considerably high. Development of variety having ... more The prevalence of Zn deficiency in Indonesia is considerably high. Development of variety having high nutrient or called as biofortification supposed to be effective and efficient to combat malnutrition such as Zn deficiency. Zn fertilizer application was reported to be effective to increase rice Zn content. ICRR in collaboration with IRRI and Harvest Plus had initiated testing rice genotypes having high Zn content. The aim of this research was to initially study of Zn fertilizer, especially ZnSO4, effect to Zn content in the rice grains and to select genotypes having high the Zn content. The trial was conducted during Wet Season 2016 in Subang, West Java following split plot design of three replications with main plot of two level ZnSO4 fertilizer applications and sub plot of 24 rice genotypes. Transplanting was conducted at 21 days after sowing into 2 m x 3 m plot with planting space of 20 cm x 20 cm. The results showed that there is interaction between genotype and Zn fertilizer ...

IOP Conference Series: Earth and Environmental Science, 2021

Drought is one of the major constraints of rice production in Indonesia. Climate change increases... more Drought is one of the major constraints of rice production in Indonesia. Climate change increases the risk of drought incidences. The evaluation of drought resisting rice genotypes available in Indonesia would hopefully find and enhance such resistance which could be utilized to be further tested in releasing a variety or donor parent within the drought-resistant breeding program. Raised bed system (RBS) is a relatively reliable method to screen drought resistance up to generative growth phase. This research aimed to screen 69 rice genotypes including 26 IRRI accession included in 3000 rice genome sequencing projects, 29 elite lines, 6 old released variety, 6 released variety, and each of susceptible and resistant drought check variety raised bed screening system. The trial was conducted in RBS facility in ICRR from January to May 2017 following a randomized complete block design of two replications. The materials were directly planted in a 10 hill row with planting space of 20 cm x...

Jurnal Penelitian Pertanian Tanaman Pangan, 2020

Brown plant hopper (BPH) is one of the main pest of rice in Indonesia and it occurred every years... more Brown plant hopper (BPH) is one of the main pest of rice in Indonesia and it occurred every years with fluctuate acreage. BPH is also vector of Rice Ragged Stunt Virus (RRSV) and Rice Grassy Stunt Virus (RGSV). Green Super Rice (GSR) was designed to have resistance to major pests and diseases so that it need less pesticides and thus save ro environment. GSR was developed in IRRI and China and was tested in Indonesia since 2009 until now (2019). This research was aimed to study the genetic variability and heritability of 26 selected GSR lines to RRSV and RGSV along with four check varieties. The experiment was conducted in ICRR Sukamandi and Pusakanagara Experimental Station. The experiment was arranged following randomized complete block design with three replications. Transplanting was done into 21 days old seedling into 25 cm x 25 cm planting space of 1 m x 1 m plot. BPH and virus investation was occured narturally due to BPH outbreak along the season (DS 2010). Percentage...

IOP Conference Series: Earth and Environmental Science, 2019

Rohaeni WR, Hastini T. 2015. Inventory of local rice varieties in Ciater, Subang District, West J... more Rohaeni WR, Hastini T. 2015. Inventory of local rice varieties in Ciater, Subang District, West Java. Pros Sem Nas Masy Biodiv Indon 1 (2): 189-193. Local varieties are important genetic resources that must be conserved to support rice breeding program. Ciater is situated in Subang District, West Java where local rice varieties are still cultivated by farmers. However, information about the rice varieties is very limited. This inventory is aimed to obtain information and to collect germplasm of the rice varieties in Ciater area, Subang District-West Java. The research was done from March to Juni 2014. A total of 12 accessions consisting of 5 sticky rice varieties and 7 local varieties was collected and mostly found in Cibeusi village. The rice varieties have harvesting period in an average of about 6 months. They are characterized by a low number of tiller, relatively high stem, and tailed grain. The cultivation system was done by using integrated crop management technology with local customs.

IOP Conference Series: Earth and Environmental Science, 2022

Drought tolerance is important trait for rice. Developing simple system for drought tolerance scr... more Drought tolerance is important trait for rice. Developing simple system for drought tolerance screening will increase efficiency and effectiveness of breeding for the certain purpose. This research aimed to screen selected variety for drought under limited semi controlled space system. The trial was conducted at the limited open space with controlled irrigation and drainage system in the area of Indonesian Centre of Rice Research green houses in Subang, West Java, from July to November 2019. Twenty varieties selected from previous drought screenings using concrete box method were transplanted at 21 days after sowing with planting space of 20 x 20 cm 1 – 3 seedling/hill in a single row of 10 plants followed randomized complete block design with two replications. The materials were watered for 4 weeks since transplanting. Re-watering was given until harvesting since IR 20 (drought sensitive check) was completely dry. The results showed variation level of drought tolerance among the te...

Biodiversitas, Jan 18, 2023

Jurnal AgroBiogen

Argo is a local swamp rice from Kalimantan which is widely cultivated by local farmers. Explorati... more Argo is a local swamp rice from Kalimantan which is widely cultivated by local farmers. Exploration activities in Kalimantan found two types of local rice named Argo but demonstrated different phenotypes. Therefore, genotypic verification is needed to determine the differences between the two Argo rice genotypes. DNA fingerprint could help genotype verification rapidly and the result is not influenced by environmental factors. The aims of this study were to determine the level of similarity of Argo-1 and Argo-2 with swamp rice and other irrigated rice genotypes using microsatellite markers. A total of eight improved and local varieties were used as genetic material with the two local rice Argo (Argo-1 and Argo-2). The rice genotypes were analyzed by using eight microsatellite markers. The results of the molecular analysis showed that the two types of Argo showed different DNA bands based on the RM228 marker but genetically they were closely related. The genetic distance between the ...

Agrotrop: Journal on Agriculture Science, 2015

Phenotypic of Soybean at Two Extreme Condition of Light Intensity. Cultivation of soybean in row ... more Phenotypic of Soybean at Two Extreme Condition of Light Intensity. Cultivation of soybean in row rubber area was one of extensification programme for improving national soybean production. The problem on row rubber area was the low light intensity that could disturb soybean growth. Plant breeding for creating tolerant variety for low light intensity was doing until now. Bogor Agricultural University had many lines for being candidate of tolerant variety. F6 soybean population from single seed descent methode need to explored for that trait on low light intensity condition. The aim of this research was to know the differences of soybean phenotypic between on low light intensity and full light intensity condition. The research was done on March-May 2009. Randomized complete block design with 3 replication was using as experimental design which lines as the treatment on two condition (low light and full light condition). The result saw that low light intensity was changing type of soybean growth, determinate became indeterminate type of growth. Low light intensity made soybean became early on flowering fase and water content on seed was increase. Low light intensity made decreasing the productivity until 37.25% than full light intensity condition.

Quick Evaluation for Cold Tolerant Line By Using Thermogradientbar. Lowtemperature stress was the... more Quick Evaluation for Cold Tolerant Line By Using Thermogradientbar. Lowtemperature stress was the main obstacle for rice growth in high elevation. Low temperaturestress greatly affect the vegetatif growth stage and generatif. There were required screening /quick test to determine the tolerance genotype for low temperature stress. Thermogradientbaris one quick screening tool that could potentially be used in the rice in the vegetatif phase.This study aimed to evaluate quickly for getting the tolerant rice lines on low temperaturestress. The study was conducted in November-December 2015 Biology Laboratory, LIPI. Atotal of 15 lines of upland rice and 3 checks were used in the testing. Gradient temperature onthermogradientbar tool were 12, 17, 18, 21, 22, 25, 26, 28, 31 oC. Seeds of each strain testedwith 5 replications. The number of replicates results show low temperature stress began tolook at the temperature of 18 oC. Genotype G3 (B12165D-MR-8-1-1-2), G4 (B11910D-MR-22-2), G5 (B1421...

PTT merupakan strategi dan metodologi peningkatan produktivitas padi yang sangat memperhatikan su... more PTT merupakan strategi dan metodologi peningkatan produktivitas padi yang sangat memperhatikan sumber daya setempat, sehingga pengkajian terhadap penerapan komponen teknologi PTT penting dilakukan. Tujuan: (1) melihat keragaan padi sawah masing–masing model dan (2) mengetahui produktivitas padi inbrida dengan menerapkan komponen PTT. Penelitian dilakukan di Bogor di lima lokasi, yaitu Bojong Picung, Gekbrong, Karangtengah, Tanggeung, dan Warungkondang menggunakan rancangan kelompok lengkap teracak dengan lima model teknologi PTT, termasuk teknologi petani sebagai control dan lima ulangan. Varietas yang digunakan sebagai tanaman indikator adalah Inpari 4. Hasil: perlakuan Model PTT memberikan pengaruh berbeda-beda antar-lokasi kajian. Model PTT berpengaruh nyata pada produktivitas di lokasi Karang tengah, sementara itu di lokasi lainnya tidak berpengaruh nyata Integrated crop management (ICM) is a strategy and methodology for improvement and productivity of rice to support accelerat...

Indonesian Journal of Agronomy, 2016

The objective of this research was to determine the trait variance in black soybean lines in term... more The objective of this research was to determine the trait variance in black soybean lines in terms of yield and yield components. The materials used were F8 lines generated from hybridization of two local varieties, i.e. black seeded Ceneng and greenish yellow seeded Godek, and then selected under single seed descent method, except SC-39-1, SC-62-2 and GC- 74-7 that were generated through bulk selection method. The results showed that the traits between plant genotypes were significantly different, except number of productive node and number of unfilled pod. Total variance was contributed more by number of filled pod, seed weight per plant and 100 seed weight. Seed weight per plant and 100 seed weight had high heritability with genetic variance and broad-sense heritability which were significantly different from zero. These characters are important for further selection to improve yields of black soybean lines.

The condition of rice field without any irrigation is one of the problems in the rainfed land. Th... more The condition of rice field without any irrigation is one of the problems in the rainfed land. This rice field only relies on the existence of water during the rainy day. This causes the limitation of water availability which affect plant growth. This study aimed to know the performance of the rice advance lines, estimated the value of genetic parameters and obtains the best line on drought condition. As many as 100 advance lines (> F8) for drought tolerant were tested using Augmented Design in five blocks. A total of six-check varieties were included in the experiment. The research was conducted at Dry Season of 2015 in ICRR-Sukamandi Experimental Field. The result showed that on the drought condition gained the average value for plant height as 103,44 cm, number of productive tillers as 12 tillers, percentage of filling pine grains reached 60,46%, leaf color index as 39,37, and weight of 1.000 grains averaged as 26,34 g, while weight grain per 5 clumps as 166,34 g. Yield trait ...

Saat ini produksi padi nasional sudah mencapai angka 56,54 juta ton GKG. Kementerian Pertanian pa... more Saat ini produksi padi nasional sudah mencapai angka 56,54 juta ton GKG. Kementerian Pertanian pada tahun 2020 mentargetkan peningkatan produksi padi nasional sebesar 7%. Aspek penting yang menjadi perhatian dalam peningkatan produksi padi tersebut antara lain adalah peningkatan efisiensi dan pelestarian lingkungan karena berkaitan dengan daya saing produksi berkelanjutan yang didasarkan pada agroekosistem padi. Petunjuk teknis penerapan Teknologi Budidaya Padi di berbagai Agroekosistem ini disusun sebagai acuan bagi para pihak yang akan menerapkan teknologi tersebut, selanjutnya diharapkan buku ini dapat bermanfaat.

Phenotypic of Soybean at Two Extreme Condition of Light Intensity. Cultivation of soybean inrow r... more Phenotypic of Soybean at Two Extreme Condition of Light Intensity. Cultivation of soybean inrow rubber area was one of extensification programme for improving national soybean production. Theproblem on row rubber area was the low light intensity that could disturb soybean growth. Plant breedingfor creating tolerant variety for low light intensity was doing until now. Bogor Agricultural University hadmany lines for being candidate of tolerant variety. F6 soybean population from single seed descentmethode need to explored for that trait on low light intensity condition. The aim of this research was toknow the differences of soybean phenotypic between on low light intensity and full light intensity condition.The research was done on March – May 2009. Randomized complete block design with 3 replicationwas using as experimental design which lines as the treatment on two condition (low light and full lightcondition). The result saw that low light intensity was changing type of soybean gro...

Selection on Segregating Generation of Paddy Lines for Rainfed. High yielding variety of paddy ad... more Selection on Segregating Generation of Paddy Lines for Rainfed. High yielding variety of paddy adapted for rainfed is not many developed until now. Just Inpari 38 that has been released successfully for rainfed areal. Segregating population is the basic for breeding activity. Indonesian Centre of Rice Research has been creating based population for creating new varieties adapted on ranfed environment. The aim of this research was for getting promising lines adapted on rainfed with good vigor, resistence form host and pest, and early maturity. This research was done at wet season in 2014 (November 2014 – March 2015) in rainfed areal, Margasari, Pasawahan district-Purwakarta, West Java. About 2694 lines were evaluated as genetic material. Bulk and Pedigree methods was being used on this research. The selection activity has done successfully with getting 637 best lines that has good score of vigorous (score 1 and 3) and healthy. There were consist of 21.19% from early generation, 63.26...