Effects of Weak Light Stress on Grain Traits of Rice during Booting Stage
With Qianchonglang No.2 as the test material,the effect of weak light stress on grain traits and the relationship between grain traits and grain quality during booting stage were studied under pot conditions.The results showed that the weak light stress during booting stage significantly reduced the length,width,thickness,area,volume and quality of grain;In the treatment period,when the residual of leaf age was 1.0,the 1 000-grain mass of strong,medium and weak grains decreased by 7.89%,5.70% and 12.38%,respectively.The correlation analysis showed that with the increase of grain length,width and thickness,the 1 000-grain mass also increased significantly.
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