大豆科学2017，Vol.36Issue(6)：905-912,8.DOI:10.11861/j.issn.1000-9841.2017.06.0905
不同大豆品种鼓粒期茎秆力学特性与抗倒伏性差异研究
Study on the Differences of Mechanical Properties and Lodging Resistance Among Different Soybean Varieties in Seed-filling Period
摘要
Abstract
Soybean lodging always happens in the seed-filling period which has the great influence on yield loss and becomes the limit factor in high and state yield of soybean.This study selected 30 soybean varieties as the materials,and measured the morphological and mechanical properties of base stem to analyze the effect of those characteristic on soybean lodging resistance.The results showed that the height,fresh weight and stem diameter were significantly negative correlated with soybean lodging resistance,but the ratio of stem to plant height was significantly positive correlated with soybean lodging resistance,the stem diameter/height could better reflect the lodging resistance.With height increasing,the break force,bending moment,and gravitational moment were increased,and gravitational moment had a greater impact on lodging resistance.The lodging resistance of short varieties was stronger than that of tall varieties.The lodging resistance had a closer relation with stem break force among similar height soybean varieties.The lodging resistance of soybean varieties with high difference of plant height is closely related to plant type.关键词
大豆/株高/茎秆力学特性/抗倒伏性Key words
Soybean/Plant height/Mechanical properties/Lodging resistance分类
农业科技引用本文复制引用
徐瑶,张锐,董守坤,马春梅,龚振平..不同大豆品种鼓粒期茎秆力学特性与抗倒伏性差异研究[J].大豆科学,2017,36(6):905-912,8.基金项目
国家科技支撑计划(2014BAD11B01) （2014BAD11B01）
黑龙江省重大科技项目(GA14B101). （GA14B101）
