New soybean [Glycine max] cultivar 'Kurodamaru'
2007
Nakazawa, Y.(National Agricultural Research Center for Kyushu Okinawa Region, Koshi, Kumamoto (Japan)) | Takahashi, M. | Komatsu, K. | Matsunaga, R. | Hajika, M. | Sakai, S. | Igita, K.
'Kurodamaru' was developed at the National Agricultural Research Center for Kyushu and Okinawa Region from 1989 and was registered as 'Soybean Norin 128' in 2004. This variety was selected from the progeny derived from the cross 'Sakagami 2' x 'Shintanbaguro'. 'Kurodamaru' is a very late maturing variety with determinate growth, broad leaflets, and purple flowers, and tawny pubescence. Its pod is brown at maturity. The cultivar has a medium stem and exhibits resistance to lodging. The seeds are spherical flattened, black with black hila, and very large (48.4g/100 seed weight). 'Kurodamaru' is resistant to soybean root necrosis and has medium resistance to soybean mosaic virus (SMV). The cultivar is susceptible to soybean cyst nematode (SCN) and arenaria nematode (Meloidogyne arenaria). The seed yield is a little higher than that of 'Shintanbaguro' but lower than that of 'Fukuyutaka'. The seed appearance is superior to that of 'Shintanbaguro'. The seed protein content of 'Kurodamaru' is lower than that of 'Shintanbaguro' and 'Fukuyutaka', and the seed oil content is equivalent to that of 'Shintanbaguro' and is a little higher than that of 'Fukuyutaka'. Radical-scavenging activity of 'Kurodamaru' is higher than that of 'Shintanbaguro'. 'Kurodamaru' is suitable for 'Nimame (boiled soybeans),' resulting in small losses for the manufacturer. 'Kurodamaru' is suitable for cultivation in the Kyushu area.
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