Dirvamena Boer | UHO - Academia.edu (original) (raw)

Papers by Dirvamena Boer

Jurnal Agroteknos

The aim of this research is to obtain information on the resistance of several local cayenne pepp... more The aim of this research is to obtain information on the resistance of several local cayenne pepper varieties from Southeast Sulawesi to drought stress. The study was conducted at Field Laboratory II, Faculty of Agriculture, Halu Oleo University, Kendari, which took place from January to June 2022. The research consisted of two experiments, namely the seed phase and the plant phase. The first experiment used a Factorial Randomized Block Design (RAK). The first factor was drought stress, consisting of 3 levels of PEG concentration (0, 7.5, and 15%). The second factor was the type of cayenne pepper, including 2 national varieties: Dewata and Bara, as well as 4 local cultivars from Konsel, Konawe, Muna, and Kendari. The second experiment also used a Factorial Randomized Block Design (RAK). The first factor was watering with field capacity (KL): 100, 50, and 25%. The second factor was the same as in the first experiment, which was the type of cayenne pepper. The first experimental varia...

... Qian W, Ge S, Hong DH. 2001. Genetic variation within and among populations of a wild rice Or... more ... Qian W, Ge S, Hong DH. 2001. Genetic variation within and among populations of a wild rice Oryza granulata from China detected by RAPD and ISSR markers. Theor Appl Genet 102:440–449 Rachmawati, HR. 2000. ... San Francisco. Soekotjo. 1977. Silvika. ...

IOP Conference Series: Earth and Environmental Science, 2022

Rice is the major food commodity in Indonesia and many other countries, as the main source of car... more Rice is the major food commodity in Indonesia and many other countries, as the main source of carbohydrate. Rice production must be increased continuously to meet food needs, one of which is by utilizing largely available dry land areas. Two important factors required to increase rice production on marginal soils are the use of high-production adaptive varieties and biological agents. It is necessary to conduct research on the application of local microbes to the cultivation of upland rice cultivars, with the aim to determine the best genotypes and/or suitable microbes. This research was carried out at the Research Field and laboratories of Faculty of Agriculture, University of Halu Oleo, from April 2020 to April 2021. The first tested factor was biological agents (local microbes), consisting of three levels, namely: without microbes (M0), the fungus Trichoderma sp. (M1), and the bacteria Pseudomonas sp. (M2). The second factor was the upland rice cultivar, which consisted of five l...

IOP Conference Series: Earth and Environmental Science, 2021

Cashew (Anacardium occidentale L), a species belonging to the family Anacardiaceae, has been cult... more Cashew (Anacardium occidentale L), a species belonging to the family Anacardiaceae, has been cultivated throughout most of Indonesia’s areas and has become a priority commodity in Southeast Sulawesi for years. However, the information about its variation on morphology and relationship among individuals are still limited. This study aimed to determine the morphological variations and relationships among cashew individuals in three districts (Konawe, South Konawe, and East Kolaka) of Southeast Sulawesi. As many as ninety individuals were analyzed on 15 morphological variables for the variations and 47 variables using the complete linkage method based on Gower distance for the clustering. The coefficients of variation were varied on all evaluated variables. The highest was the height of main branches (cm), ranging from 47.32 % to 73.72 %. Meanwhile, nut length had the lowest coefficient of variation (6.75%-7.99%). The individuals were divided into two main clusters with two sub-cluster...

IOP Conference Series: Earth and Environmental Science, 2018

Jurnal Berkala Ilmu-Ilmu Pertanian (Journal of Agricultural Sciences), Aug 31, 2022

Drought stress is a major problem in tomato cultivation activities in Southeast Sulawesi. That pr... more Drought stress is a major problem in tomato cultivation activities in Southeast Sulawesi. That problems can be overcome by using tolerant plant varieties. This study aims to determine the effect stress treatment on several types of tomato plants. This research was conducted at the Field Experiment Laboratory II, Faculty of Agriculture, Halu Oleo University from May to September 2021. The research design used a factorial randomized block design. The first factor is drought stress (K) consisting of 3 levels of treatment, namely watering 100% KL (K0), 50% KL (K1) and 25% KL (K2). The second factor was the type of tomato plant which consisted of 6 levels, namely Muna cultivar (V1), Konsel cultivar (V2), Kolaka cultivar (V3), Kolut cultivar (V4), Rose variety (V5) and Teeth variety (V6). Observation variables consisted of plant height (cm), number of leaves (strands), root length (cm), root dry weight (g) and canopy dry weight (g). Observational data were analyzed by method of variance and tested with BNJ test with a 95% confidence level if F calculated is greater than F table. The interaction of drought stress treatment and tomato plant species had a significant effect on the all variables of plant.

Berkala Penelitian Agronomi

perlu terus dilakukan. Penelitian ini bertujuan menganalisis efek heterosis hasil persilangan tig... more perlu terus dilakukan. Penelitian ini bertujuan menganalisis efek heterosis hasil persilangan tiga varietas jagung pulut hibrida yang sudah beredar luas di masyarakat. Penelitian dilaksanakan di Laboratorium Percobaan II Fakultas Pertanian Universitas Halu Oleo Kendari dengan menggunakan rancangan persilangan dialel penuh dan pengujiannya dengan rancangan acak kelompok (RAK) tiga ulangan. Variabel yang diamati adalah tinggi tanaman, tinggi letak tongkol, jumlah daun, diameter batang, umur berbunga jantan ±50%, umur berbunga betina ±50%, panjang tongkol, diameter tongkol, jumlah baris/tongkol, jumlah biji/tongkol, berat biji/tongkol dan produktivitas. Analisis heterosis yang diterapkan adalah mid parent heterosis (MPH) dan high parent heterosis (HPH). Hasil penelitian menunjukkan bahwa nilai MPH dan HPH untuk semua variabel ada yang bernilai positif karena lebih baik dari kedua tetuanya dan sebaliknya yang bernilai negatif. Secara umum nilai MPH dan HPH yang terbaik untuk karakter ve...

Open Access Research Journal of Life Sciences

Waxy corn is an important cereal in Southeast Sulawesi. The Southeast Sulawesi farmers have been ... more Waxy corn is an important cereal in Southeast Sulawesi. The Southeast Sulawesi farmers have been long times cultivating waxy corns continuously so there are many local waxy corn in the islands. We try to develop corn through cultivation practices and breeding programs. Consequently, we must know the development of the local waxy corn. This research aims to describe the growth and development phase of the local waxy corn. The growth phase was identified by the leaf collar method and the release of the tassel coupled with leaf growth variables, while the developmental phase was based on silking and seed. Five local waxy corn cultivars and one hybrid variety were used to determine the growth and development phase. The research was carried out at the Experimental Garden of the Faculty of Agriculture, Halu Oleo University, Kendari City, Indonesia, from May to August 2021. Stages of growth after silking can be identified by the development of the kernels on the ear. The result of the rese...

Jurnal Agrotech

Buah tomat (Lycopersicum esculentum Mill.) merupakan salah satu produk pangan penting, selain itu... more Buah tomat (Lycopersicum esculentum Mill.) merupakan salah satu produk pangan penting, selain itu tomat merupakan bahan baku industry dan kosmetika bahkan sebagai bahan obat-obatan, namun produksinya masih fluktuatif dari tahun ke tahun karena umumnya dibudidayakan pada tanah marjinal. Tujuan penelitian ini adalah untuk mengetahui pengaruh pupuk kandang kambing dan bokasi limbah pasar terhadap pertumbuhan dan hasil tomat pada tanah Ultisol. Penelitian menggunakan Rancangan Acak Kelompok pola factorial, dengan 3 ulangan. Faktor pertama adalah pupuk kandang kambing (K) yang terdiri dari 4 taraf yakni: K0= tanpa perlakuan, K1= 300 g polybag-1, K2= 400 g polybag-1, K3= 500 g polybag-1. Faktor kedua adalah bokasi limbah pasar (P) yang terdiri dari 4 taraf yaitu P0= tanpa perlakuan, P1= 300 g polybag-1, P2= 400 g polybag-1, P3= 500 g polybag-1. Hasil penelitian menujukkan bahwa penggunaan pupuk kandang kambing dan bokasi limbah pasar secara nyata meningkatkan tinggi tanaman, jumlah daun...

KnE Life Sciences

In crop production, phosphorus (P) is the second most important limiting nutrient. However, due t... more In crop production, phosphorus (P) is the second most important limiting nutrient. However, due to precipitation reactions with Al3+, Fe3+ in acidic soil, or Ca2+ in alkaline soil, its availability in soil is severely limited. Microbes have recently been proposed as a means of increasing the bioavailability of soil phosphate for plants. The goal of this research was to isolate and identify phosphate solubilizing molds (PSM) from various plant rhizospheres, including gadung (Dioscorea hispida Dennst), maize (Zea mays L.), bamboo (Dendrocalamus asper), pineapple (Ananas comosus L.), and banana (Ananas indica L.). PSM was isolated in vitro and then diluted using the dilution plate technique with Pikovskaya’s solid medium. Five colonies were confirmed as PSM, namely Talaromyces aculeatus, Metarhizium anisopliae, Fusarium proliferatum, Mucor hiemalis, and Aspergillus niger, out of fourteen colonies formed from those rhizospheres. In the PVK solid medium, these isolates were capable of so...

EPRA International Journal of Multidisciplinary Research (IJMR), 2021

The research aimed to study the cocoa bean quality and productivity based on their position on ca... more The research aimed to study the cocoa bean quality and productivity based on their position on canopy and different plant ages. This has been conducted at cocoa farming area at Wonggeduku Subdistrict, Konawe Regency, Southeast Sulawesi Province. These treatments were arranged based on the nested design in which the pod position on the canopy i.e. on main stem, primary and secondary branches, and nested to the plant ages i.e. 8,10, 12, and 14 years old were used. The observed variable were pod length, pod diameter, seed weight, seed number, and dry production per pod. The data gathered were analysed by analysis of variance and the difference between treatments were justified by Duncan’s Multiple Range Test at 95% significant level. To study the relationship between plant ages and pod position on canopy, the regression analysis was applied. Research result showed that there were interaction effect on pod position and ages on all variable observed. The best treatment on the main stem a...

The experiment was conducted in the Rahandouna village, Poasia, Kendari Southeast Sulawesi, from ... more The experiment was conducted in the Rahandouna village, Poasia, Kendari Southeast Sulawesi, from August to November 2013. The purpose of this study was to determine the estimate of heritability between characters of thirteen local waxy corn cultivars of Southeast Sulawesi. This study was prepared using a randomized block design (RBD), with 3 replicates. Total waxy corn cultivars studied was 13 species, so that there were 39 plots. Each plot consisted of a single cultivar. Observed variables were plant height (cm), stem diameter (cm), leaf area (cm2), number of leaves (strands), ear length (cm), cob diameter (cm), number of rows per ear, weight of 100 seeds (g), ear weight. The results of this study showed that there was narrow variability on all local waxy corn characters observed. Keywords: Local waxy corn, characters, cultivars, Southeast Sulawesi, variability

JURNAL PENGABDIAN KEPADA MASYARAKAT, 2021

Desa Pombulaa Jaya Kecamatan Konda merupakan salah satu daerah pemasok sayur untuk Kota Kendari d... more Desa Pombulaa Jaya Kecamatan Konda merupakan salah satu daerah pemasok sayur untuk Kota Kendari dan Kabupaten Konawe Selatan. Selama ini petani bertanam sayur dengan mengandalkan musim hujan, namun karena perubahan iklim terkadang curah terlalu tinggi atau sebaliknya kekeringan sehingga penanaman sayuran terhambat. Metode yang digunakan untuk mengatasi kendala tersebut adalah melalui pelatihan tentang teknik budidaya tanaman secara hidroponik atau budidaya tanaman tanpa tanah. Pelatihan dilaksanakan di Balai Desa Pombulaa Jaya yang diikuti oleh 38 orang petani. Pelatihan dilakukan dalam bentuk presentasi dan dilanjutkan dengan diskusi dan demonstrasi tentang pembuatan instalasi. Hasil pengabdian ini menunjukkan antusias petani untuk mengikuti pelatihan cukup tinggi karena belum ada institusi yang memberikan sosialisasi dan pelatihan tentang teknik budidaya tanaman secara hidroponik. Pelatihan ini meningkatkan pengetahuan petani tentang teknik budidaya tanaman secara hidroponik atau ...

Maize crops experiencing water stress can experience cell damage, loss of turgor, closed stomata,... more Maize crops experiencing water stress can experience cell damage, loss of turgor, closed stomata, plant leaf roll then wilt. Germination and vegetative growth are thought to be a very sensitive phases in relation to the availability of water, because it can influence subsequent growth processes. This study aimed to determine the potential tolerance of Southeast Sulawesi’s maize genotypes to drought stress at different vegetative growth phases. This study was based on completely randomized design (CRD) with factorial pattern consisting of two factors: the first factor composed of 9 local maize genotypes of Southeast Sulawesi and 1 national variety (cv. Arjuna), while the second factor was drought stress at different vegetative growth phases, consisting of four levels ie: C0 = plants irrigated with 100 % water availability during the growth phase, C1 = Stress for 5 days , at 21-26 days old (vegetative phase), C2 = Stress for 5 days starting at panicle emergence (early flowering stag...

Citrus Vein Phloem Degeneration (CVPD) is one of the most important diseases of citrus. Worldwide... more Citrus Vein Phloem Degeneration (CVPD) is one of the most important diseases of citrus. Worldwide and national yield losses of citrus production due to this disease infection have been very significant. This research ultimately aimed at producing citrus stocks through in-vitro culture, and free of CVPD. Citrus seeds were used as explant and cultured on MS and WPM in-vitro media, supplemented with malt extract. Citrus plantlets were tested for the presence of CVPD DNA using CVPD specific primers in PCR reactions. Research results showed that MS basal medium supplemented with malt extract was quite good for invitro production of citrus plantlets. Plantlets were negative for CVPD infection based on PCR tests. CVPD-free seedlings (Citrus reticulata) have been grafted with citrus rootstock (Citrus sinensis). Grafted citrus seedlings were also proven to be negative for CVPD infection based on similar PCR tests. Citrus seedlings/stocks produced by in-vitro culture, and free of CVPD, are no...

Jurnal Agrotek Tropika, 2021

Ubi jalar (Ipomoea batatas L.) merupakan salah satu sumber karbohidrat penting dan bahan baku ind... more Ubi jalar (Ipomoea batatas L.) merupakan salah satu sumber karbohidrat penting dan bahan baku industri. Saat ini produktifitas ubi jalar di Sulawesi Tenggara masih rendah, karena sebagian besar ubi jalar di tanam pada tanah yang kurang subur. Oleh karena itu, pemberian pembenah tanah menjadi solusi alternatif perbaikan tanah marjinal. Penelitian ini bertujuan untuk mengetahui pengaruh pupuk kandang sapi terhadap pertumbuhan dan hasil ubi jalar. Penelitian dilaksanakan di lahan petani, Desa Sindang Kasih Kabupaten Konawe Selatan, mulai Maret sampai dengan Juli 2020. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 3 ulangan. Perlakuan terdiri dari: tanpa pupuk kandang sapi (kontrol), 2 t ha-1, 4 t ha-1, dan 6 t ha-1 pupuk kandang sapi. Pemberian pupuk kandang sapi 2 t ha-1 secara signifikan meningkatkan panjang batang, jumlah cabang, jumlah umbi layak jual tanaman-1, diameter umbi tanaman-1, panjang umbi tanaman-1, berat umbi tanaman-1, dan hasil umbi ha-1 dibandingkan...

Journal of Tropical Crop Science, 2016

The yield of agriculture crops tends to be decreasing in many parts of world including in Indones... more The yield of agriculture crops tends to be decreasing in many parts of world including in Indonesian farmers’ land. One of the causes of the decreased yields is the reduction of organic matter in the soil. Peanut is one of the important crops in southeast Sulawesi and is usually intercropped with maize. However, the yield of peanut and maize crops were low as they were grown in marginal lands that have low nutrient contents, low CEC, high acidity, and low organic matter. The objectives of this paper were to summarize the results of our studies on the use of bio fertilizer bokashi plus fertilizer to improve peanut yields grown in marginal soil in southeast Sulawesi, Indonesia. The study also examined the agronomical performance of several local peanut varieties which had high adaptability to the local conditions and marginal lands. The results of this study demonstrated that application of mulch and bokashi increased maize and peanut production, seed dry weight and 100-seed weight. ...

Singapore Journal of Scientific Research, 2020

Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch ge... more Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden. Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen. Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in EconStor may be saved and copied for your personal and scholarly purposes. You are not to copy documents for public or commercial purposes, to exhibit the documents publicly, to make them publicly available on the internet, or to distribute or otherwise use the documents in public. If the documents have been made available under an Open Content Licence (especially Creative Commons Licences), you may exercise further usage rights as specified in the indicated licence.

Berkala Penelitian Agronomi, 2018

Ketersediaan pangan dalam hal ini beras merupakan masalah yang cukup serius bagi semua petani, ka... more Ketersediaan pangan dalam hal ini beras merupakan masalah yang cukup serius bagi semua petani, karena selain perubahan fungsi lahan pertanian menjadi lahan non pertanian, juga timbulnya permasalahan baru yaitu perubahan musim kering yang panjang, keterlambatan dan perubahan waktu tanam. Penelitian ini bertujuan untuk mengkaji pengaruh pengkondisian air sub-optimal dan air optimal dan macam kultivar lokal terhadap keragaan agronomi morfologi dan fisiologi padi gogo lokal Sultra dan Timor Leste, sebagai upaya pendekatan yang dapat diaplikasikan pada lahan kering sawah tadah hujan. Penelitian ini dilaksanakan di Rumah Plastik lahan percobaan Fakultas Pertanian Universitas Halu Oleo Kendari. Percobaan disusun berdasarkan Rancangan Acak Kelompok pola faktorial (Faktorial RAK) yang diulang sebanyak 3 kali. Faktor pertama adalah kondisi air sub-optimal dan optimal yang terdiri atas empat taraf perlakuan yaitu kadar air 150% (W4), kadar air 100% (W3), kadar air 50% (W2), dan kadar air 2...