温室黄瓜结果期适宜根际含水量的确定  

Experiment of Suitable Rhizosphere Moisture to Cucumber During Fruiting Period in Greenhouse

作　　者：雷水玲[1] 孙忠富[2] 雷廷武[1] 

机构地区：[1]中国农业大学水利与土木工程学院,北京100083 [2]中国农业科学院农业环境与可持续发展研究所,100081

出　　处：《中国农学通报》2005年第4期221-225,共5页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金(30170538)国家科技"863"项目(2001AA247042)资助

摘　　要：通过对温室黄瓜不同水分处理植株的生长、蒸腾以及光合特性的观测和分析,得出:根际含水量为80%-90%时植株的生长状态、光合特性、根系吸水速率以及产量均为最大,说明此含水量水平为温室黄瓜生长期的最优含水量,过高或过低均会对植株的生长发育造成不良影响,使最终产量降低。另外试验观测还发现,水分过量不仅使植株生长发育迟缓,产量水平降低,可能还是诱发根结线虫病的原因。Experiment results displayed that 80%-90% was a optimum water content for cucumber (cu-cumis sarivus)growth and physiological characteristics and yield in greenhouse, water deficit or excessive-ness would retarded the growth and development of cucumber, and reduced the yield. The relationship between yield and water consumption was analyzed, and the optimal ET was about 369 mm during cucumber growth period. In this experiment, the result showed that water excessiveness might be a reason of placing a premium on root knot nematodes (meloidogyne goeldi).

关 键 词：温室黄瓜 根际 结果期 根系吸水速率 植株生长发育 光合特性 最优含水量 根结线虫病 水分处理 生长状态 不良影响 试验观测 产量水平 生长期 蒸腾 

分 类 号：S642.2[农业科学—蔬菜学] S512.1[农业科学—园艺学]