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本研究利用无色塑料网纱遮阴，光强相当于自然光的５０ ％ ～５５％ ，以大田栽培方式，对杂交水稻组合汕优６３ 进行模拟阴害试验。并用Ｒｉｃｈａｒｄｓ 方程拟合模拟阴害下水稻子粒的生长特性，拟合效果较好，同时得出，处理的弱势粒与强势粒的千粒重比对照减少了１０ ．１２％ 和４．５６ ％ ；处理的弱势粒与强势粒最大灌浆速率分别比对照减少了３７ ．９３％ 和１０ ．４８％ ，其出现时间比对照分别延迟了１天和７．９ 天。
In this study, colorless plastic mesh shading, light intensity equivalent to 50% ~ 55% of natural light, field cultivation methods, hybrid rice combinations Shanyou 63 to simulate the negative test. The Richards equation was used to simulate the growth characteristics of rice grains under cold stress, and the fitting effect was better. At the same time, it was found that the 1000-grain weight of the inferior grains and the superior grains decreased by 10% compared with the control. 12% and 4.56% respectively. The maximum grain filling rate of inferior grains and strong grains was decreased by 37% compared with the control. 93% and 10. 48%, which appeared delayed 1 day and 7.9 days respectively compared with the control.