论文部分内容阅读
选用 3个不同熟期组大豆品种在花期以 1 5℃、1 5/ 1 0℃和 1 7/ 1 2℃低温处理 ,结果表明 ,超早熟品种Aldana花期对 1 7/ 1 2℃低温有较好的耐性 ;中晚熟品种吉林 2 9号花期对低温耐性最差。大豆在花期遇低温时一粒荚数增多 ,三粒荚数和单株荚数减少 ,导致单株粒数下降 ;花期持续低温对大豆荚和籽粒的形成有较大的影响
Three soybean cultivars with different maturity stages were selected to be treated at low temperature of 15 ℃, 15/10 and 17/12 ℃ during the flowering period. The results showed that the flowering stage of Aldana was more severe than the low temperature of 17/12 ℃ Good tolerance; middle and late maturing varieties of Jilin 29 on the low temperature tolerance of the worst. Soybean at low temperature in flowering one pod number increased, three pods and pods per plant decreased, resulting in decreased grain number per plant; flowering continued low temperature on soybean pod and grain formation have a greater impact