Development of soybean [Glycine max] breeding line Shoku-kei 32 with high resistance to soybean dwarf virus disease derived from 'WILIS'
2008
Tazawa, A.(Hokkaido. Tokachi Agricultural Experiment Station, Memuro (Japan)) | Jinno, H. | Tezuka, M. | Miyoshi, T. | Kosaka, F. | Tanaka, Y.
Soybean dwarf virus (SbDV) disease causes serious damage to soybean yield and quality in Hokkaido, Japan. Some varieties with SbDV field resistant, such as 'Tsurukogane (1984)', 'Tsurumusume (1990)' and 'Iwaikuro (1998)' were released from Hokkaido Central Agricultural Experimental Station. However, the resistance of these varieties is not enough to practical soybean production, therefore the new resistant variety to SbDV have been required for a long time. A new breeding line Shokukei-32 with high resistance to SbDV, derived from the cross between Indonesian variety 'WILIS' and Hokkaido local variety 'Karafuto-1', was bred at Hokkaido Plant Genetic Resource Center in 2004. WILIS was used as a donor of SbDV resistance and Karafuto-1 was used as a donor of fundamental agricultural characteristics of soybean in Hokkaido, such as early maturing, shorter main stem length. A SbDV resistance line, Shokukei-32 showed no damage under high incident SbDV field without chemical pest control, and its maturing time and main stem length are similar to leading varieties, 'Toyokomachi' and 'Toyomusume'. Shokukei-32 is expected to use as a new breeding material with excellent SbDV resistance and good agricultural traits.
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