新疆日光温室弱光胁迫对西葫芦生长和产量形成的影响

通过日光温室冬、春季节3 种弱光水平胁迫对西葫芦营养生长和产量形成的影响研究,结果表明:无论冬、春季节均表现为随弱光胁迫加剧,植株营养生长势减弱,产量下降。在冬季弱光环境下,各处理的产量显著低于春季较高光强下对应处理的产量,且干物质积累速度变缓,干物质向果实中分配比例减少,从而制约冬季产量的形成。

Effect of Low-Light Stress in Sunlight Greenhouse in Different season on Growth and Yield of Pumpkin

We've done some experiments about the effect of three different low light stress levels in sunlight greenhouse in winter and in spring respectively on nutrient growth and yield of pumpkin,and the results show that:In winter and in spring,the stronger the low light stress in sunlight greenhouse is,the weaker the nutrient growth vigour of the plants will be and the lower the yield of the plants.The yield of each treatment in low light in winter is greatly lower than that of the same treatment in high light in spring.In winter low light shows down the accumulation of dry matter,and lessens the distribution of dry matter to fruit,so low light hinders the formation of pumpkin yield in winter.