番茄NFT栽培系统中基于叶水势的合理供水研究  

Study on the reasonable water supply in NFT tomato culture system based on leaf water potential.

作　　者：徐林娟[1] 邓勋飞[1] 陶国富[1] 苗香雯[1] 何勇[1] 

机构地区：[1]浙江大学生物系统工程系,浙江杭州310029

出　　处：《浙江大学学报（农业与生命科学版）》2006年第3期313-317,共5页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：浙江省自然科学基金资助项目(M303466);教育部高校优秀青年教师教学科研奖励计划;博士点基金资助项目(20040335034)

摘　　要：以圣女樱桃番茄为材料,研究了在NFT栽培系统中不同灌溉条件下番茄植株在不同生育期叶水势的日变化规律.结果表明,不同供水方式对番茄叶水势的影响不同.各生育阶段均以处理Ⅰ(每间隔10 min供水15 s)番茄叶水势值最高,日变化较小,而处理Ⅲ(每间隔30 min供水15 s)叶水势值最低,且日变化较大,处理Ⅱ(每间隔20 min供水15 s)与处理Ⅲ叶水势相比差值大,与处理Ⅰ叶水势相比差值小,处理Ⅱ番茄的茎粗、叶面积以及各器官的鲜重等生物学指标以及产量均比其他处理方式高.Taking the Shengnv cherry tomato as the potential （LWP） in tomato plant were investigated culture system. Results of the experiment revealed research material, the daily variation of leaf water under different irrigating circumstances with NFT that different irrigating circumstances had different effects on leaf water potential of tomato. During the main growth stages, the daily variation of leaf water potential with treat-modeⅠ （running 15 s, 10 rain interval） was smallest and got a relatively high LWP value, while treat mode Ⅲ （running 15 s, 30 min interval） brought great changes and with a relatively low LWP value. Comparing to treat-mode Ⅰ and treat mode Ⅲ, treat-mode Ⅱ （running 15 s, 20 min interval） was much more ideal, with mild daily variation and best development of stem leaf together with the highest production.

关 键 词：番茄 NFT 叶水势 合理供水 

分 类 号：S26[农业科学—农业水土工程]