| Effect of drought stress on seed dry matter accumulation of kidney bean and the construction of dynamic model |
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| DOI：10.7606/j.issn.1000-7601.2014.02.023 |
| Key Words: drought stress kidney bean dry matter accumulation logistic model |
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| Abstract: |
| In order to study the effect of drought stress on seed dry matter accumulation of kidney bean and establish the dynamic equation, we selected 2242 speckled kidney bean cultivars and performed a pot experiment with three drought treatments including growth stages, drought severity and duration. The results showed significant influence of drought stress on seed dry matter accumulation. For the drought treatment, reduction in yield followed the order of CK＞moderate drought＞severe drought. Grain dry accumulation followed “S” curve and can be described by the Logistic model, with the coefficient of determination being above 0.98. |