摘心高度对菜豆“九月青”农艺性状及产量的影响

Effects of Topping Height on Agronomic Characters and Yield of Bean Jiuyueqing

以菜豆“九月青”为试验材料,在塑料大棚中进行栽培比较试验,综合分析菜豆“九月青”的生物学性状和产量结构,筛选出最适宜菜豆摘心的高度为1.5 m。结果表明摘心对菜豆“九月青”的茎粗影响不大,摘心高度1.5 m时能够使菜豆提早上市13 d左右,同时叶面积指数最大为6.42,单株侧枝产量、前期产量和总产量最大,以期通过本试验进一步明确菜豆的摘心高度,同时为完善菜豆摘心机理提供理论条件。

Using bean Jiuyueqing as a test material, a comparative cultivation experiment was conducted in a plastic greenhouse. The biological characteristics and yield structure of bean Jiuyueqing were comprehensively analyzed,and the optimum height of bean topping was 1.5 m. The results showed that the topping had little effect on the stem thickness of the bean Jiuyueqing. When the topping height is 1.5 m, the bean can be listed about 13 days earlier,and the maximum leaf area index is 6.42. It is hoped that this experiment will further clarify the topping height of kidney beans, and at the same time provide theoretical conditions for improving the mechanism of topping beans.