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不同植物对不同颜色的光的反应和同化率有所不同。目前日本等国有用聚乙烯薄膜袋套苹果、蓝色膜覆盖草莓能增产的报导。国内也有了紫色膜覆盖韭菜能增产的成功经验。本试验用不同颜色的聚乙烯薄膜套苹果,经1986—1988三年的试验,结果表明:四种不同颜色的薄膜袋套苹果均能起到防止病虫危害、增加单果重量的效果。其中以紫色膜最好,平均单果增重17.7％。现将三年的试验方法
Different plants respond differently to light of different colors and assimilation rates are different. At present, Japan and other countries with polyethylene film bag apple, blue film covered strawberries can increase coverage. China also has a purple film coverage of chives can increase the successful experience. The test with different colors of polyethylene film sets of apple, the 1986-1988 three years of tests, the results show that: four different colors of film bags of apple can play to prevent pests and diseases, increasing the weight of fruit results. One of the best purple film, the average weight gain 17.7%. Now three years of test methods