论文部分内容阅读
分别对合丰49和合丰50大豆品种在1～3片复叶期掐尖,以不掐尖处理为对照,研究了掐尖时期对大豆农艺性状和产量的影响。结果表明:掐尖对大豆的株高、节数、分枝数、单株荚数和粒数产生了一定影响,与对照间的差异达到显著或极显著水平。大豆产量在掐尖处理中表现一致,2个品种均是1片复叶期掐尖产量最高,合丰49与合丰50分别较对照增产9.65%和28.80%。因此,1片复叶期掐尖对大豆增产效果较好。
The effects of pinching and cutting on the agronomic characters and yield of soybean were studied respectively on the three varieties of Hefeng 49 and Hefeng 50 in the period of 1 to 3 compound leaves. The results showed that pinching tip had some effects on the plant height, number of nodes, number of branches, number of pods per plant and number of grains per plant, reaching a significant or extremely significant difference from the control. The yield of soybean was consistent in pinching treatment. The two cultivars showed the highest yield of pinch tip in the period of 1 leaf and the yield of Hefeng 49 and Hefeng 50 increased 9.65% and 28.80% respectively compared with the control. Therefore, a compound leaf tip pinch soybean yield better.