遮光处理对棚室越夏番茄的影响研究  

Effects of Different Light Intensity on Tomato Growth and Yield in Summer

作　　者：董文阁[1] 张剑[1] 刘晓伟[1] 董莉[1] 刘念[1] 欧勇[1] 

机构地区：[1]辽宁省水土保持研究所蔬菜研究室,辽宁朝阳122000

出　　处：《辽宁农业科学》2015年第5期17-20,共4页Liaoning Agricultural Sciences

基　　金：辽宁省农业攻关计划项目(2014215016)

摘　　要：试验以不同遮光强度处理大棚内的越夏番茄,以棚室内未遮光处理为对照,旨在为越夏番茄生产筛选适宜的生长环境。对大棚内越夏番茄行不同遮光强度处理后,大棚室内其它环境因子随之发生显著变化,平均遮去棚室内光照强度的32.67%~51.33%,与对照相比较,空气温度降低2.0~5.1℃,地温降低了1.0~4.5℃。不同遮光处理后株高增加3.4%~4.8%,番茄植株净光合速率下降6.9%~21.8%,显著降低了裂果率,S50处理后“欧盾”、“瑞菲”品种商品果率分别提高35.9%和40.7%,商品果产量分别提高35.9%和40.7%。High temperature and high light affect tomato growth easily in summer,leading to dehiscent fruit, sunburn and virus disease.The plastic channel was shaded by different density of shading net when tomatoes grew in this experiment in summer,nature light （810 ~1 186 μmol /s·m^2 ）were used as control （CK）,ai-ming at improving the tomato growth conditions.The environment factors changed significantly in the plastic channel.The light density deducted by 32.7% ~5 1 .3%,the air temperature is lower 2.0 ~5.1 ℃ than CK, and the ground temperature decreased by 1 .0 ~4.5 ℃.The plant length increased significantly by 3.4% ~4.8%,net photosynthetic rate deducted significantly by 6.9% ~21 .8%,and commodity fruit rate increased by 35.9% ~40.7% while decreasing dehiscent fruit rate.

关 键 词：番茄 光照强度 温度 裂果 产量 

分 类 号：S641.204[农业科学—蔬菜学]