EVA薄膜在黄瓜育苗中应用效果的研究

对EVA薄膜的保温性以及对黄瓜幼苗生长的影响进行了研究。研究结果表明,EVA薄膜保温性能好,比对照PVC薄膜高2~3℃,能明显促进黄瓜出苗和幼苗生长。同对照PVC薄膜相比,神农春五提早出苗2~3d,出苗率增加12.5%;顶峰二号提早出苗1~2d,出苗率增加3.65%。2个品种株高平均提高15%,叶面积增加26.5%,叶绿素含量提高14.3%。

Study on Effect of EVA Film on the Cucumber Seedling

The heat preservation properties and the effect of EVA thin film on the seedling growth of protected cucumber were studied. The results showed that the heat preservation of EVA film was good, the temperature of EVA treatment was 2-3 centigrade higher than that of PVC film. Germination and seedling growth of cucumber was promoted by EVA treatment. Shennongchun-5 germinated 2-3 d earlier compared with the control, germination rate increased by 12.5%, while dingfeng No.2 germinated 1-2 d earlier, and germination rate increased by 3.65% . The average plant height increased by 15% and average leaf area increased by 26.5%, chlorophyll content of leaf enhanced by 14.3%. Length of the internodes and the thick of young stem increased significantly.