高产优质大豆黔豆4号的选育

BREEDING OF QIANDOU 4,HIGH YIELD AND HIGH PROTEIN CONTENT SOYBEAN VARIETY

黔豆４号系用浙春１号为母本，钢７３４５－４为父本进行有性杂交，经３年５代选育而成的高产优质（蛋白质含量高达４７％）大豆新品种。１９９１～１９９２年省区试亩产８４．１ｋｇ，比对照种安豆２号增产９．５％。生育期适中，适应性较强。１９９５年通过贵州省农作物品种审定委员会审定，定名为黔豆４号，可在毕节、安顺、六盘水、遵义、贵阳等地区推广。

By selecting of 5 generations within 3 years from a cross between Zhechun l as female and Gang 7345-4as male parent,Qiandou 4.a high yield and high protein content(as high as 47%)soybean variety has beenbred out;Qiandou 4 obtained a seed yield of 84.1 kg/mu and gained an increase rate of 9.5%in comparisonwith the control variety as applied in the regional comparison trials during 1991～1992.And the variety hasboth a moderate growth period and a high adaptability. It was approved by Guizhou Crop Variety Examina-tion Committee in 1995 and could be extended in Bieji,An-shun. Liupanshui,Zunyi and Guiyang.