ネパール西部におけるマメ科作物およびその近縁野生種の収集・保全，2016年10月29日～11月10日

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  • Collection and Conservation of Leguminous Crops and Their Wild Relatives in Western Nepal from October 29 to November 10, 2016

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This is the first report on the collaborative collection and conservation of legume genetic resources in Nepal under the agreement between the National Agriculture Genetic Resources Center (NAGRC), Nepal Agricultural Research Council (NARC), Nepal, and the Genetic Resources Center (GRC), National Agriculture and Food Research Organization (NARO), Japan. Three wild Vigna species, Vigna hirtella Ridley (a close relative of azuki bean), Vigna radiata (L.) Wilcz. var. sublobata (Roxb.) Verdc. (wild ancestor of mung bean) and Vigna sahyadriana Aitawade, K. V. Bhat & S. R. Yadav (formerly recorded only from Northern Western Ghats, Maharashtra, India), were recorded for the first time in Nepal. In addition, Vigna angularis (Willd.) Ohwi & Ohashi var. nipponensis (Ohwi) Ohwi & Ohashi (wild ancestor of azuki bean) was recorded for the first time in Western Nepal.A field survey was conducted in Western Nepal from October 29 to November 10, 2016. A total of 68 samples were recorded in Nepal and 67seed materials were collected (no seeds were collected for sample N62) and conserved in the gene bank at NAGRC, Nepal. A subset was transferred to the GRC (NARO Genebank), Japan, using the Standard Material Transfer Agreement (SMTA) of the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGR). In Japan, introduced samples were separated and registered as 97 accessions (no seeds for N62) based on the differences of species (N25 contained Vigna radiata and Vigna mungo), seed coat colors and/or seed sizes. These accessions consisted of 15 species from eight genera, including soybean, common bean, azuki bean, mung bean, and the four wild Vigna species mentioned above. NARO Genebank plans to evaluate the growth characters of the collected materials and to propagate using these seeds in the summer of 2017. Multiplied seeds will be conserved and distributed upon request for agricultural research, breeding, and educational purposes.

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