夏大豆秋播初探

The growth and development of Summer soybean sown in Autumm

采用夏大豆品系驻 94 1 4进行田间秋播试验 ,对其植株性状、生育期及产量结构等进行研究。结果表明 ,秋播夏大豆生育期 ( 95d)缩短 ,株高降低 ,主茎节数减少 ,百粒重和蛋白质含量 ( 48.7%)增加 ,籽粒产量2 868kg/ hm2 ,或毛豆荚 60 0 0～ 70 0 0 kg/ hm2。证明夏大豆秋播的可行性 ,在生产。

A Summer soybean line Zhu 9414 was sown at August 6, 1999 in a field in Zhumadian district. The result showed that the growth period of Zhu 9414 by sown in Autumn was 95 days. Compared with sown in Summer, the line appeared lower plant height and less internodes of main stem, and the 100 seed weight increased. The grain yield of the line was 2868kg/hm 2, and the protein content of seeds was 48.70%. The trail result suggested that Summer soybean sown in Autumn in Zhumadian was feasibe.