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SATRIYAS ILYAS
Department of Agronomy and Horticulture, Faculty of Agriculture, Institut Pertanian Bogor. Jl. Meranti, Kampus IPB Dramaga, Bogor 16680, West Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Evaluation of agro-morphological and molecular characters of 22 rice landraces of East Timor LUIS MANUEL BRANCO; ENDAH RETNO PALUPI; SATRIYAS ILYAS; BAMBANG SAPTA PURWOKO; AGUS PURWITO
Biodiversitas Journal of Biological Diversity Vol. 24 No. 5 (2023)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d240505

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Abstract. Branco LM, Palupi ER, Ilyas S, Purwoko BS, Purwito A. 2023. Evaluation of agro-morphological and molecular characters of 22 rice landraces of East Timor. Biodiversitas 24: 2536-2546. Landraces play an important role in the local food security and sustainable development of agriculture as a source of genes that control important traits adaptive to environmental conditions. The study aimed to characterize the agro-morphological and molecular characteristics of 22 rice landraces of East Timor (Timor Leste). The research was conducted in April-August 2018 in Caibada-Baucau-East Timor. Soil analysis was conducted at the Soil Laboratory of the Agronomy and Horticulture Department, IPB University. Materials used were 22 rice landraces seeds and one check variety. The seeds were germinated in seedbed seedlings with a basin (30 cm x 25 cm). The seedlings were planted in the field 16 days after sowing in a plot of 1.5 m x 7.0 m and a spacing of 25 cm x 25 cm, with an isolation distance between plots of ±3 m. Data collection was based on nine growth phases of rice. The cluster analysis based on agro-morphological characters resulted in 6 groups with a similarity coefficient of 0.17 or 17%, showing a high level of diversity. The lowest yield was Ale Kukefuhu (290 g/m2), and the highest was Hare Nona Portu (979 g/m2). Using 10 RAPD markers, the 22 rice landraces samples produced 77 DNA fragment bands with sizes between 300 bp-1475 bp, averaging 3.35 alleles per landrace; polymorphic rates of 8.1. OPA8, OPH1, and OPH7 markers were the highest (100.00%), and OPF5 was the lowest (66.67%) polymorphic percentage. Based on the molecular marker, the coefficient of similarity of the landraces ranged from 0.12 to 0.51, and they were grouped into five clusters.
Morphological variability and cluster analysis of 16 bambara groundnut (Vigna subterranea) genotypes MUHAMMAD FAUZAN FARID AL HAMDI; SATRIYAS ILYAS; ABDUL QADIR; SEAN MAYES
Biodiversitas Journal of Biological Diversity Vol. 25 No. 1 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250111

Abstract

Abstract. Hamdi MFFA, Ilyas S, Qadir A, Mayes S. 2024. Morphological variability and cluster analysis of 16 bambara groundnut (Vigna subterranea) genotypes. Biodiversitas 25: 97-106. Identifying morphological and germination characters in bambara groundnut (Vigna subterranea (L.) Verdc.) is important to determine the advantages and disadvantages of several genotypes. This study aimed to identify the characteristics of 16 bambara groundnut genotypes based on morphological markers, NDVI score, and germination variables. This study was conducted in Sumedang, West Java, Indonesia in March-July 2018. The experiment was arranged in a randomized complete block design with one factor: genotype, which consisted of 16 genotypes originating from Indonesia and Africa. The NDVI score did not affect the yield produced. Tiga Nicuru, DodR-R II, M-14 Gresik, Black Sukabumi, and Black Madura were the genotypes with the highest germination speed, while LunT was the lowest. Cluster analysis showed that bambara groundnut genotypes are classified into 4 clusters. The first cluster belongs to Sumedang and Sukabumi, the second belongs to Gresik, Madura, and Tasikmalaya, the third comes from West Africa (LunT and Tiga Nicuru), and the fourth comes from East Africa (IITA 686 and DodR-R II) and Southern Africa (S 19-3, Uniswa R and Uniswa R/G). The low similarity (28%) between genotypes from Indonesia and Africa shows that there are many differences in morphological characteristics. This high diversity is beneficial for creating superior cultivars.
Co-Authors ABDUL QADIR AGUS PURWITO BAMBANG SAPTA PURWOKO ENDAH RETNO PALUPI LUIS MANUEL BRANCO MUHAMMAD FAUZAN FARID AL HAMDI SEAN MAYES