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All Journal AGRIVITA, Journal of Agricultural Science
Kuswanto Kuswanto
Faculty of Agriculture Universty of Brawijaya (Scopus ID: 57192702058)
Agriculture, Biological Sciences & Forestry

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The Yield Stability and Adaptability of Bambara Groundnut at Three Locations Gita Novita Sari; Darmawan Saptadi; Kuswanto Kuswanto
AGRIVITA, Journal of Agricultural Science Vol 44, No 1 (2022)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v44i1.3079

Abstract

Varieties with high yield stability are required to increase the yield. This study examines the strength and adaptability of seven Bambara groundnut lines in three areas. The seven lines used are CCC 1.6, PWBG 6, PWBG 521, SS 342, SS 242, BBL 11, and TVSU 86 as checks. The research sites are Brawijaya University Experimental Station, Farmer field in Madiun and Indonesia Legumes, and Tuber Crop Research Institute (ILETRI) Research Station. Research is conducted from February to October 2020. The study used a randomized block design with three replications. The Eberhart-Russel and FinlayWilkinson methods were used to analyze stability and adaptability. The Genotype x Environmental interaction (GxE) results of the 7 Bambara groundnut lines are at 50% flowering time, seed weight per plant, 100-seed weight, yield, and harvest age. The stability and adaptability analysis shows that BBL 1.1 line is the variety with an earlier harvest period, highest yield potential, good stability, and wide adaptability. The CCC 1.1, PWBG 6, PWBG 5.2.1, and SS 2.4.2 production lines are stable in all experimental environments but low productivity. The SS 3.4.2 is suitable for planting in a production environment. TVSU 86 is ideal for producing in marginal habitats such as drought conditions. 
Positive Impact of Similarity on Twice Single Seed Descent of Purification on Bambara Groundnut (Vigna subterranea L. Verdcourt) Kuswanto Kuswanto; Prakit Somta
AGRIVITA, Journal of Agricultural Science Vol 40, No 1 (2018): FEBRUARY
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v40i0.1725

Abstract

The main problem of local line Bambara groundnut (Vigna subterranea L. Verdcourt) genotype improving is the low of purity. The research on genetic purification of Bambara groundnut had finished in twice single seed descent. The objective of this research was to find out the uniformity gain level within lines each other after single seed descent applied twice. This research was conducted in Agriculture Research Station, Universitas Brawijaya, from 2014 to 2016. There were 20 selected local lines evaluated twice with single seed descent method. On the first and second evaluation, it was applied on previous 19 local lines and 1 check genotype. Similarity coefficient was analyzed with cluster analysis of qualitative characters within lines. Variability within line was described on quantitative characters. The local lines had different response on single seed descent selection. These differences depended on genetic of qualitative characters. On the first single seed descent, it got similarity coefficient of 0.704-0.832. On the second one, it got similarity coefficient of 0.804-1.00. Increasing of similarity coefficient from 0.10-0.168 will improve purification of local lines 15.76-20.19 %. Two circles of single seed descent selection were capable to purify local lines. Variability of quantitative character depended on kind of character.
The Genetics of Pandan-Like Fragrance, 2-Acetyl-1-Pyrroline, in Crops Prakit Somta; Kuswanto Kuswanto; Peerasak Srinives
AGRIVITA, Journal of Agricultural Science Vol 41, No 1 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i1.2085

Abstract

The main advantages of pandan (Pandanus amaryllifolius (Roxb.) is the fresh leaves which mainly used for the pleasant fragrance in cuisine. 2-acytile-1-pyrroline (2AP) (also known as 1-(3,4-dihydro-2H-pyrrol-5yl)ethanone) is the principle volatile chemical responsible for the fragrance in pandan.  2AP was identified for the first time from the cooked rice. Many cultivars of certain crops also produce pandan-like fragrance/2AP including rice (Oryza sativa L.), sorghum (Sorghum bicolor (L.) Moench), mungbean (Vigna radiata (L.) Wilczek), soybean (Glycine max (L.) Merr.), coconut (Cocos nucifera L.), cucumber (Cucumis sativus L.), wax gourd (Benincasa hispida), and taro (Colocasia esculenta (L.) Schott). The fragrant crop varieties command higher price than non-fragrant cultivars. Breeding for fragrance is a main goal in breeding programs in these crops. Although genetics studies revealed that the presence of fragrance in crops is monogenic trait and that mutation(s) resulting in null or reduced function of betaine aldehyde dehydrogenase 2 (BADH2)/amino aldehyde dehydrogenase (AADH) causes production of 2AP, the level of the fragrance is quantitative in nature. In this paper, we review and discuss the genetic controls of the fragrance in some crops.
Co-Authors Darmawan Saptadi Gita Novita Sari Peerasak Srinives Prakit Somta Prakit Somta