Hailay Mehari | Mekelle university (original) (raw)
Papers by Hailay Mehari
Plant Biotechnology Reports, Sep 6, 2023
Sesame (Sesamum indicum L, 2n = 2x = 26) is one of the ancient and most important oilseed crops, ... more Sesame (Sesamum indicum L, 2n = 2x = 26) is one of the ancient and most important oilseed crops, extensively cultivated in tropical and sub-tropical countries. Due to its high oil quality and content, rich in vitamins and minerals, ingredients of medical products, antioxidant resistance as well as the main component in the production of soaps, cosmetics, perfumes, and insecticides, sesame is considered as the queen of oilseeds. In spite of its industrial, economical, medicinal and nutritional importance, sesame is considered as an orphan crop as very limited attention has been given from science, academia, industry and policy-makers. In recent years, the situation has substantially changed due to significant development in molecular markers. In this regard, numerous studies have been conducted on molecular markers and their importance in marker-assisted breeding, genetic conservation and genetic diversity. This paper, therefore, aims to review research advances and prospects of molecular markers employed so far for sesame genetic diversity and conservation studies. In this section, we present a review on different molecular techniques which were developed and used for sesame genetic improvement. We also pinpoint the progress of different molecular markers targeted for genetic diversity studies, germplasm conservation, cultivar identification, determination of genetic variation, construction of genetic linkage maps, identification of QTLs/genes and discovery of molecular markers using freely available online databases. Finally, this review identifies hot topics and upcoming directions for future sesame improvement programs.
Research Square (Research Square), Oct 16, 2023
Diversifying the use of climate-smart crops such as Sweet sorghum has the potential to solve inte... more Diversifying the use of climate-smart crops such as Sweet sorghum has the potential to solve integrated food, bioenergy, feed, and land management problems. The study purposed to quantify the sugar content of Nech Tinkish (v1) and Hawaye (v2) indigenous sweet sorghum varieties and investigate the interaction effect of fermentation parameters to determine their capacity for ethanol production. Sweet sorghum varieties were analyzed to determine their difference in oBrix content by extracting their juices. The juice was clari ed using milk lime. Its total soluble sugars, total carbohydrates, and reducing sugars were determined using a digital Refractometer, phenol sulfuric acid, and 3, 5-Dinitro salicylic acid, respectively. A completely Randomized Factorial was employed to evaluate ethanol production capacity, and the ethanol content was estimated using a potassium dichromate solution. The oBrix results revealed that v2 had a higher sugar concentration than v1. Additionally, the estimated carbohydrate content of the juice ranged from 37.402 g/L to 157.641 g/L. The estimated reducing sugar also varied from 4.644 g/L to 33.412 g/L. Therefore, the estimated reducing sugar showed the hydrolysis of Sweet sorghum juice by invertase and sulfuric acid produced more fermentable sugars. Fermentation at 30 o C with pH 4.5 incubated for four days yields the highest ethanol, and v2 yields higher (15.31%) ethanol, compared to v1 produced 15.31%. This study showed a basis for the existence of two sugar-rich climate smart sweet sorghum varieties with an extraordinary amount of sugar used as a source of biofuel and food simultaneously in a single plot of land.
Journal of Crop Science and Biotechnology, Mar 24, 2023
Das et al. Rust Resistance in Field Pea through bootstrapping strengthened the accuracy of the GG... more Das et al. Rust Resistance in Field Pea through bootstrapping strengthened the accuracy of the GGE biplot and legitimated the precision of genotypes recommendation. Genotype, IPF-2014-16, KPMR-936 and IPF-2014-13 identified as "ideal" genotypes, which can be recommended for release and exploited in a resistance breeding program for the region confronting field pea rust.
African Journal of Biotechnology, Nov 28, 2018
Soybean rust, Phakopsora pachyrhizi, is one of the most serious and widespread foliar diseases of... more Soybean rust, Phakopsora pachyrhizi, is one of the most serious and widespread foliar diseases of soybean causing high yield losses worldwide. The objective of this study was to identify and map quantitative trait loci (QTLs) resistant to soybean rust in genotype UG 5. Ninety-seven F 2 mapping plants, obtained from a cross between Wondersoya and UG 5, were used for this study. Quantitative trait locus analysis using QTL IciMapping software identified three putative QTLs associated with soybean rust (SBR) on chromosomes 6, 9 and 18 with logarithms of odds (LOD) scores ranging from 3.47 to 8.23 and phenotypic variance explained by the QTLs ranging from 18.3 to 25.6%. The putative QTL detected on chromosome 9 is novel and has not been reported elsewhere. The putative QTLs identified in this study could help to facilitate SBR resistance breeding towards efficient markerassisted selection approach and gene pyramiding leading to the development of durable resistance.
Plant Breeding, Jul 15, 2020
Online databases containing genetic information are crucial to extract new candidate genes from e... more Online databases containing genetic information are crucial to extract new candidate genes from existing data and web-based resources. The objective of this study was, therefore, to predict putative candidate genes associated with resistance to SBR in line UG-5 and understand their functions using different bioinformatics tools from the online available databases. The physical positions for the flanking markers of the identified putative QTLs were searched on the SoyBase database genome browser based on Glyma 1.01 assembly. The putative candidate genes and annotated functions of the surrounding genes were discovered in the vicinity using SoyBase and Phytozome databases. A total of 18 putative candidate genes were predicted on approximately 482.7 kb region of QTL-3 (chromosome 18), among which, six putative candidate genes were found to encode leucine-rich repeat (LRR), Ser/Thr protein phosphatase, leucine-rich repeat receptor-like protein kinase (LRR-RLK) and chitinase-related proteins, which are associated with plant defence signalling pathways. Moreover, F-box and leucine-rich repeat, glycosyltransferase family member and serine/threonine-protein phosphatase 2A catalytic subunit coding genes were predicted on the novel putative QTL detected on chromosome 9. This information could, therefore, be used for further prediction and annotation of candidate genes from sequenced regions of line UG-5 as these putative candidate genes were predicted from the Glyma 1.01 assembly.
PLOS ONE
Sesame is an important oilseed crop cultivated in Ethiopia as a cash crop for small holder farmer... more Sesame is an important oilseed crop cultivated in Ethiopia as a cash crop for small holder farmers. However, low yield is one of the main constraints of its cultivation. Boosting and sustaining production of sesame is thus timely to achieve the global oil demand. This study was, therefore, aimed at identifying mutant genotypes targeted to produce better agronomic traits of M2 lines on fourteen Ethiopian sesame genotypes through seed treatment with chemical mutagens. EMS was used as a chemical mutagen to treat the fourteen sesame genotypes. Quantitative and qualitative data were recorded and analyzed using analysis of variance with GenStat 16 software. Post-ANOVA mean comparisons were made using Duncan’s Multiple Range Test (p≤ 0.01). Statistically significant phenotypic changes were observed in both quantitative and qualitative agronomic traits of the M2 lines. All mutant genotypes generated by EMS treatment showed a highly significant variation for the measured quantitative traits,...
International Microbiology
Molecular Biology Reports
Plant Breeding, 2020
ABSTRACTOnline databases containing genetic information are crucial to extract new candidate gene... more ABSTRACTOnline databases containing genetic information are crucial to extract new candidate genes from existing data and web‐based resources. The objective of this study was, therefore, to predict putative candidate genes associated with resistance to SBR in line UG‐5 and understand their functions using different bioinformatics tools from the online available databases. The physical positions for the flanking markers of the identified putative QTLs were searched on the SoyBase database genome browser based on Glyma 1.01 assembly. The putative candidate genes and annotated functions of the surrounding genes were discovered in the vicinity using SoyBase and Phytozome databases. A total of 18 putative candidate genes were predicted on approximately 482.7 kb region of QTL‐3 (chromosome 18), among which, six putative candidate genes were found to encode leucine‐rich repeat (LRR), Ser/Thr protein phosphatase, leucine‐rich repeat receptor‐like protein kinase (LRR‐RLK) and chitinase‐relat...
SSRN Electronic Journal, 2021
Understanding the genetic mechanisms of soybean rust resistance is important for effective select... more Understanding the genetic mechanisms of soybean rust resistance is important for effective selection and breeding procedures. This study was hence conducted to determine the combining ability and gene action controlling soybean rust using a 10x10 half diallel mating design. The F2 segregating populations along with their parents were evaluated for rust severity and sporulation level at two reproductive stages (R4 and R6) in screen house and field conditions during the second season of 2016 and first season of 2017 at MUARIK using an alpha lattice design replicated thrice. Significant differences were observed among the parents and F2 generations for both disease severity and sporulation level. General and specific combining abilities were highly significant. The GCA/SCA ratio (1.50-2.30) and the Baker’s ratio (0.75-0.82) showed the predominance of additive gene action in the inheritance of soybean rust resistance. The broad-sense (0.94-0.99) and narrow-sense (0.73-0.82) heritability...
Journal of Plant Breeding and Crop Science, 2018
The bruchid, Callosobruchus maculatus (F.) is one of the most destructive pests and causes substa... more The bruchid, Callosobruchus maculatus (F.) is one of the most destructive pests and causes substantial losses to cowpea during storage in tropical and subtropical regions. The development of successful breeding strategy requires knowledge on gene action and trait inheritance in local and improved sources. In this study, the mode of inheritance, the types of gene action and maternal effects of cowpea resistance to bruchid was investigated. Nine parental lines and their 72 F 2 segregating populations, created in a full diallel Griffing's method 1 approach, were evaluated for resistance to bruchid attack in a randomized complete block design (RCBD) with three replications. Data were recorded on number of eggs laid by the bruchid (NE), adult bruchid emergence (NEI), median development period (MDP) and Dobie Susceptibility index (DSI) was computed. Genotype had highly significant effects on NE, NEI and MDP and DSI. General combining ability (GCA) effects of parents, specific combining ability (SCA) effects of crosses, and maternal and reciprocal effects were highly significant for all the traits. The ratios of GCA to SCA for all the traits were greater than 50% suggesting the preponderance of additive over non-additive gene action in the expression of the traits. Narrow sense heritability estimates were 64.12, 77.69 and 80.99% for NE, NEI and MDP, respectively. Parents 2419, TVu-2027 and IT84s-2246 were identified as promising general combiners for resistance to bruchid and the seven best selected crosses based on their SCA and DSI values were, IT84s-2246 × 2419, 2419 × MU9, TVu-2027 × SECOW2W and 2419 × IT90K-76, 2419 × WC69, 2419 × SECOW5T and 2419 × SECOW2W. The selected parents and/or crosses could be valuable genetic materials for breeding cowpea resistance to bruchid in Uganda or similar environments.
Molecular Biology Reports, 2011
Senescence is an integrated response of plants to various internal (developmental) and external (... more Senescence is an integrated response of plants to various internal (developmental) and external (environmental) signals. It is a highly regulated process leading eventually to the death of cells, single organs such as leaves, or even whole plants. In cereals, which are monocarpic plants, senescence represents the final stage of development. In order to study senescence in durum wheat (Triticum turgidum
Chinese Science Bulletin, 2003
Springerlink.com towards F. graminearum using the rolled towel assay in a randomized incomplete b... more Springerlink.com towards F. graminearum using the rolled towel assay in a randomized incomplete block design. A genetic map was constructed from 2545 SNP markers and 2 SSR markers by composite interval mapping. One major and one minor QTL were identified on chromosomes 8 and 6, respectively, which explained 38.5 and 8.1 % of the phenotypic variance. The major QTL on chromosome 8 was mapped to a 300 kb size genomic region of the Williams 82 sequence. Annotation of this region indicates that there are 39 genes including the Rhg4 locus for soybean cyst nematode (SCN) resistance. Based on previous screens, PI 567301B is susceptible to SCN. Fine mapping of this locus will assist in cloning these candidate genes as well as identifying DNA markers flanking the QTL that can be used in markerassisted breeding to develop cultivars with high levels of resistance to F. graminearum.
The Scientific World Journal, 2021
The emerging oilseed crop Sesamum indicum, also known as the queen of oilseeds, is being grown gl... more The emerging oilseed crop Sesamum indicum, also known as the queen of oilseeds, is being grown globally for its oil content for medicinal and nutritional values. One of the key challenges of sesame cultivation is its low productivity. In the present study, sodium azide (NaN3) was used as a chemical mutagen. The aim of this study was to examine the effect of NaN3 on quantitative and qualitative stem traits in the M2 generation of Ethiopian sesame (Sesamum indicum L.) genotypes. Seeds of fourteen sesame genotypes were used in this study and germinated and grown under greenhouse conditions. Different qualitative and quantitative data were collected and analyzed. Traits such as plant height, ground distance to first distance, and internode length were significantly affected by NaN3 treatment. The highest plant height was recorded in the control on Humera 1 and Baha Necho genotypes, while the lowest was observed on Setit 2 and Hirhir treated with the chemical. The highest ground distance...
Frontiers in Plant Science, 2019
Das et al. Rust Resistance in Field Pea through bootstrapping strengthened the accuracy of the GG... more Das et al. Rust Resistance in Field Pea through bootstrapping strengthened the accuracy of the GGE biplot and legitimated the precision of genotypes recommendation. Genotype, IPF-2014-16, KPMR-936 and IPF-2014-13 identified as "ideal" genotypes, which can be recommended for release and exploited in a resistance breeding program for the region confronting field pea rust.
Plant Biotechnology Reports, Sep 6, 2023
Sesame (Sesamum indicum L, 2n = 2x = 26) is one of the ancient and most important oilseed crops, ... more Sesame (Sesamum indicum L, 2n = 2x = 26) is one of the ancient and most important oilseed crops, extensively cultivated in tropical and sub-tropical countries. Due to its high oil quality and content, rich in vitamins and minerals, ingredients of medical products, antioxidant resistance as well as the main component in the production of soaps, cosmetics, perfumes, and insecticides, sesame is considered as the queen of oilseeds. In spite of its industrial, economical, medicinal and nutritional importance, sesame is considered as an orphan crop as very limited attention has been given from science, academia, industry and policy-makers. In recent years, the situation has substantially changed due to significant development in molecular markers. In this regard, numerous studies have been conducted on molecular markers and their importance in marker-assisted breeding, genetic conservation and genetic diversity. This paper, therefore, aims to review research advances and prospects of molecular markers employed so far for sesame genetic diversity and conservation studies. In this section, we present a review on different molecular techniques which were developed and used for sesame genetic improvement. We also pinpoint the progress of different molecular markers targeted for genetic diversity studies, germplasm conservation, cultivar identification, determination of genetic variation, construction of genetic linkage maps, identification of QTLs/genes and discovery of molecular markers using freely available online databases. Finally, this review identifies hot topics and upcoming directions for future sesame improvement programs.
Research Square (Research Square), Oct 16, 2023
Diversifying the use of climate-smart crops such as Sweet sorghum has the potential to solve inte... more Diversifying the use of climate-smart crops such as Sweet sorghum has the potential to solve integrated food, bioenergy, feed, and land management problems. The study purposed to quantify the sugar content of Nech Tinkish (v1) and Hawaye (v2) indigenous sweet sorghum varieties and investigate the interaction effect of fermentation parameters to determine their capacity for ethanol production. Sweet sorghum varieties were analyzed to determine their difference in oBrix content by extracting their juices. The juice was clari ed using milk lime. Its total soluble sugars, total carbohydrates, and reducing sugars were determined using a digital Refractometer, phenol sulfuric acid, and 3, 5-Dinitro salicylic acid, respectively. A completely Randomized Factorial was employed to evaluate ethanol production capacity, and the ethanol content was estimated using a potassium dichromate solution. The oBrix results revealed that v2 had a higher sugar concentration than v1. Additionally, the estimated carbohydrate content of the juice ranged from 37.402 g/L to 157.641 g/L. The estimated reducing sugar also varied from 4.644 g/L to 33.412 g/L. Therefore, the estimated reducing sugar showed the hydrolysis of Sweet sorghum juice by invertase and sulfuric acid produced more fermentable sugars. Fermentation at 30 o C with pH 4.5 incubated for four days yields the highest ethanol, and v2 yields higher (15.31%) ethanol, compared to v1 produced 15.31%. This study showed a basis for the existence of two sugar-rich climate smart sweet sorghum varieties with an extraordinary amount of sugar used as a source of biofuel and food simultaneously in a single plot of land.
Journal of Crop Science and Biotechnology, Mar 24, 2023
Das et al. Rust Resistance in Field Pea through bootstrapping strengthened the accuracy of the GG... more Das et al. Rust Resistance in Field Pea through bootstrapping strengthened the accuracy of the GGE biplot and legitimated the precision of genotypes recommendation. Genotype, IPF-2014-16, KPMR-936 and IPF-2014-13 identified as "ideal" genotypes, which can be recommended for release and exploited in a resistance breeding program for the region confronting field pea rust.
African Journal of Biotechnology, Nov 28, 2018
Soybean rust, Phakopsora pachyrhizi, is one of the most serious and widespread foliar diseases of... more Soybean rust, Phakopsora pachyrhizi, is one of the most serious and widespread foliar diseases of soybean causing high yield losses worldwide. The objective of this study was to identify and map quantitative trait loci (QTLs) resistant to soybean rust in genotype UG 5. Ninety-seven F 2 mapping plants, obtained from a cross between Wondersoya and UG 5, were used for this study. Quantitative trait locus analysis using QTL IciMapping software identified three putative QTLs associated with soybean rust (SBR) on chromosomes 6, 9 and 18 with logarithms of odds (LOD) scores ranging from 3.47 to 8.23 and phenotypic variance explained by the QTLs ranging from 18.3 to 25.6%. The putative QTL detected on chromosome 9 is novel and has not been reported elsewhere. The putative QTLs identified in this study could help to facilitate SBR resistance breeding towards efficient markerassisted selection approach and gene pyramiding leading to the development of durable resistance.
Plant Breeding, Jul 15, 2020
Online databases containing genetic information are crucial to extract new candidate genes from e... more Online databases containing genetic information are crucial to extract new candidate genes from existing data and web-based resources. The objective of this study was, therefore, to predict putative candidate genes associated with resistance to SBR in line UG-5 and understand their functions using different bioinformatics tools from the online available databases. The physical positions for the flanking markers of the identified putative QTLs were searched on the SoyBase database genome browser based on Glyma 1.01 assembly. The putative candidate genes and annotated functions of the surrounding genes were discovered in the vicinity using SoyBase and Phytozome databases. A total of 18 putative candidate genes were predicted on approximately 482.7 kb region of QTL-3 (chromosome 18), among which, six putative candidate genes were found to encode leucine-rich repeat (LRR), Ser/Thr protein phosphatase, leucine-rich repeat receptor-like protein kinase (LRR-RLK) and chitinase-related proteins, which are associated with plant defence signalling pathways. Moreover, F-box and leucine-rich repeat, glycosyltransferase family member and serine/threonine-protein phosphatase 2A catalytic subunit coding genes were predicted on the novel putative QTL detected on chromosome 9. This information could, therefore, be used for further prediction and annotation of candidate genes from sequenced regions of line UG-5 as these putative candidate genes were predicted from the Glyma 1.01 assembly.
PLOS ONE
Sesame is an important oilseed crop cultivated in Ethiopia as a cash crop for small holder farmer... more Sesame is an important oilseed crop cultivated in Ethiopia as a cash crop for small holder farmers. However, low yield is one of the main constraints of its cultivation. Boosting and sustaining production of sesame is thus timely to achieve the global oil demand. This study was, therefore, aimed at identifying mutant genotypes targeted to produce better agronomic traits of M2 lines on fourteen Ethiopian sesame genotypes through seed treatment with chemical mutagens. EMS was used as a chemical mutagen to treat the fourteen sesame genotypes. Quantitative and qualitative data were recorded and analyzed using analysis of variance with GenStat 16 software. Post-ANOVA mean comparisons were made using Duncan’s Multiple Range Test (p≤ 0.01). Statistically significant phenotypic changes were observed in both quantitative and qualitative agronomic traits of the M2 lines. All mutant genotypes generated by EMS treatment showed a highly significant variation for the measured quantitative traits,...
International Microbiology
Molecular Biology Reports
Plant Breeding, 2020
ABSTRACTOnline databases containing genetic information are crucial to extract new candidate gene... more ABSTRACTOnline databases containing genetic information are crucial to extract new candidate genes from existing data and web‐based resources. The objective of this study was, therefore, to predict putative candidate genes associated with resistance to SBR in line UG‐5 and understand their functions using different bioinformatics tools from the online available databases. The physical positions for the flanking markers of the identified putative QTLs were searched on the SoyBase database genome browser based on Glyma 1.01 assembly. The putative candidate genes and annotated functions of the surrounding genes were discovered in the vicinity using SoyBase and Phytozome databases. A total of 18 putative candidate genes were predicted on approximately 482.7 kb region of QTL‐3 (chromosome 18), among which, six putative candidate genes were found to encode leucine‐rich repeat (LRR), Ser/Thr protein phosphatase, leucine‐rich repeat receptor‐like protein kinase (LRR‐RLK) and chitinase‐relat...
SSRN Electronic Journal, 2021
Understanding the genetic mechanisms of soybean rust resistance is important for effective select... more Understanding the genetic mechanisms of soybean rust resistance is important for effective selection and breeding procedures. This study was hence conducted to determine the combining ability and gene action controlling soybean rust using a 10x10 half diallel mating design. The F2 segregating populations along with their parents were evaluated for rust severity and sporulation level at two reproductive stages (R4 and R6) in screen house and field conditions during the second season of 2016 and first season of 2017 at MUARIK using an alpha lattice design replicated thrice. Significant differences were observed among the parents and F2 generations for both disease severity and sporulation level. General and specific combining abilities were highly significant. The GCA/SCA ratio (1.50-2.30) and the Baker’s ratio (0.75-0.82) showed the predominance of additive gene action in the inheritance of soybean rust resistance. The broad-sense (0.94-0.99) and narrow-sense (0.73-0.82) heritability...
Journal of Plant Breeding and Crop Science, 2018
The bruchid, Callosobruchus maculatus (F.) is one of the most destructive pests and causes substa... more The bruchid, Callosobruchus maculatus (F.) is one of the most destructive pests and causes substantial losses to cowpea during storage in tropical and subtropical regions. The development of successful breeding strategy requires knowledge on gene action and trait inheritance in local and improved sources. In this study, the mode of inheritance, the types of gene action and maternal effects of cowpea resistance to bruchid was investigated. Nine parental lines and their 72 F 2 segregating populations, created in a full diallel Griffing's method 1 approach, were evaluated for resistance to bruchid attack in a randomized complete block design (RCBD) with three replications. Data were recorded on number of eggs laid by the bruchid (NE), adult bruchid emergence (NEI), median development period (MDP) and Dobie Susceptibility index (DSI) was computed. Genotype had highly significant effects on NE, NEI and MDP and DSI. General combining ability (GCA) effects of parents, specific combining ability (SCA) effects of crosses, and maternal and reciprocal effects were highly significant for all the traits. The ratios of GCA to SCA for all the traits were greater than 50% suggesting the preponderance of additive over non-additive gene action in the expression of the traits. Narrow sense heritability estimates were 64.12, 77.69 and 80.99% for NE, NEI and MDP, respectively. Parents 2419, TVu-2027 and IT84s-2246 were identified as promising general combiners for resistance to bruchid and the seven best selected crosses based on their SCA and DSI values were, IT84s-2246 × 2419, 2419 × MU9, TVu-2027 × SECOW2W and 2419 × IT90K-76, 2419 × WC69, 2419 × SECOW5T and 2419 × SECOW2W. The selected parents and/or crosses could be valuable genetic materials for breeding cowpea resistance to bruchid in Uganda or similar environments.
Molecular Biology Reports, 2011
Senescence is an integrated response of plants to various internal (developmental) and external (... more Senescence is an integrated response of plants to various internal (developmental) and external (environmental) signals. It is a highly regulated process leading eventually to the death of cells, single organs such as leaves, or even whole plants. In cereals, which are monocarpic plants, senescence represents the final stage of development. In order to study senescence in durum wheat (Triticum turgidum
Chinese Science Bulletin, 2003
Springerlink.com towards F. graminearum using the rolled towel assay in a randomized incomplete b... more Springerlink.com towards F. graminearum using the rolled towel assay in a randomized incomplete block design. A genetic map was constructed from 2545 SNP markers and 2 SSR markers by composite interval mapping. One major and one minor QTL were identified on chromosomes 8 and 6, respectively, which explained 38.5 and 8.1 % of the phenotypic variance. The major QTL on chromosome 8 was mapped to a 300 kb size genomic region of the Williams 82 sequence. Annotation of this region indicates that there are 39 genes including the Rhg4 locus for soybean cyst nematode (SCN) resistance. Based on previous screens, PI 567301B is susceptible to SCN. Fine mapping of this locus will assist in cloning these candidate genes as well as identifying DNA markers flanking the QTL that can be used in markerassisted breeding to develop cultivars with high levels of resistance to F. graminearum.
The Scientific World Journal, 2021
The emerging oilseed crop Sesamum indicum, also known as the queen of oilseeds, is being grown gl... more The emerging oilseed crop Sesamum indicum, also known as the queen of oilseeds, is being grown globally for its oil content for medicinal and nutritional values. One of the key challenges of sesame cultivation is its low productivity. In the present study, sodium azide (NaN3) was used as a chemical mutagen. The aim of this study was to examine the effect of NaN3 on quantitative and qualitative stem traits in the M2 generation of Ethiopian sesame (Sesamum indicum L.) genotypes. Seeds of fourteen sesame genotypes were used in this study and germinated and grown under greenhouse conditions. Different qualitative and quantitative data were collected and analyzed. Traits such as plant height, ground distance to first distance, and internode length were significantly affected by NaN3 treatment. The highest plant height was recorded in the control on Humera 1 and Baha Necho genotypes, while the lowest was observed on Setit 2 and Hirhir treated with the chemical. The highest ground distance...
Frontiers in Plant Science, 2019
Das et al. Rust Resistance in Field Pea through bootstrapping strengthened the accuracy of the GG... more Das et al. Rust Resistance in Field Pea through bootstrapping strengthened the accuracy of the GGE biplot and legitimated the precision of genotypes recommendation. Genotype, IPF-2014-16, KPMR-936 and IPF-2014-13 identified as "ideal" genotypes, which can be recommended for release and exploited in a resistance breeding program for the region confronting field pea rust.