中国农业科学 ›› 2007, Vol. 40 ›› Issue (2): 322-329 .

• 土壤肥料·节水灌溉 • 上一篇    下一篇

根区局部控水无压地下灌溉对番茄生理特性及产量、品质的影响

王 燕,蔡焕杰,陈新明,郑 健   

  1. 西北农林科技大学水利与建筑工程学院
  • 收稿日期:2006-05-22 修回日期:2006-08-08 出版日期:2007-02-10 发布日期:2007-02-10
  • 通讯作者: 蔡焕杰

Study of Effects of Partial Rootzone Non-pressure Subirrigation on the Physiological Characteristics of Tomato

  

  1. 西北农林科技大学水利与建筑工程学院
  • Received:2006-05-22 Revised:2006-08-08 Online:2007-02-10 Published:2007-02-10

摘要: 【目的】探明无压灌溉不同供水水平对作物根区土壤水分条件、番茄的形态指标、水分生理指标和光合生理指标及产量、品质和水分利用效率的影响。【方法】以东圣一号番茄为试验材料,在日光温室进行了灌溉试验研究,试验共设3个供水水平,压力水头分别为0、3和6cm,并采用DPS分析软件对数据进行了显著性分析。【结果】不同供水水平对番茄的生长发育及产量品质有显著的影响。6cm处理番茄产量最高,3cm处理次之,0cm处理最低;但番茄的水分利用效率却是0cm>3cm>6cm处理;0cm处理下番茄的糖酸比和可溶性蛋白含量最高,Vc含量降幅也不大;相对于0cm处理,6cm和3cm处理的Vc含量分别提高了19.2%和6.8%。【结论】根区局部控水无压地下灌溉能够满足番茄需水量,不同供水压力对番茄根区土壤水分、生理特性和产量影响不同,同时能够协调番茄糖酸之间的比例,提高番茄的糖酸比、可溶性蛋白含量和Vc含量,使番茄能更加美味可口,起到了以水调质的功效,值得在农业生产中推广。

关键词: 无压灌溉, 番茄, 生长发育, 生理特性, 产量, 品质

Abstract: With the matierials of No.1 DongSheng tomato, studied the changing pattern of soil water status and morphological indexes under different(water elevation respectively is –3cm,0cm,3cm,and 6cm),the effects on the changing of photosynthetic rate,and some physiological indexes,like leaf water potential,sap leaf cell concentration, relative leaf water content and so on. The results showed that every water applying level can meet the needs of tomato,the changing pattern of soil water status are resemble.The plants under the treatment of 6cm growed well, the plants of 3cm and 0cm treatment a little worse than 6cm,-3cm treatment is the worst. The leaf transpiration speed, stomatal conductance of tomato under -3cm treatment is the smallest,but the WUE is the hightest. The leaf transpiration speed, stomatal conductance of tomato under 6cm treatment is the biggest, the WUE is lower.The results suggested,Partial rootzone non-pressure subirrigation greatly increased WUE of tomato and is worth promoting in the agricultural production.

Key words: non-pressure subirrigation, tomato, growth, physiological characteristics