以湘研１号为材料，研究了弱光对辣椒落花和光合作用的影响。结果表明，弱光（７×１０３ｌｘ）下的光合速率仅为中度光（２×１０４ｌｘ）下的１１３％，弱光还降低了光合产物运输速率，改变了光合产物运转方向，处理７ｄ后，中度光下花器官中的光合产物分配率是弱光下的５２倍，而脱落率则分别为１８％和７９％，表明同化物供应不足是弱光诱导辣椒落花的重要原因。 Using Xiangyan 1 as material, the effects of low light on the flower and photosynthesis of pepper were studied. The results showed that under low light (7 × 103lx), the photosynthetic rate was only 113% under medium light (2 × 104lx). Low light also reduced the photosynthate transport rate, changed the photosynthetic product running direction, , The distribution rate of photosynthetic products in moderate light under the flower organs was 5  2 times under low light, while the off rate was 18% and 79%, respectively, indicating that the insufficient supply of assimilates was the important reason for the weak light-induced flower drop of peppers .