盐胁迫对樱桃番茄幼苗形态指标的影响

Effects of Salt Stress on Morphological Index of Cherry Tomato Seedlings

盐害是樱桃番茄设施栽培中面临的主要问题之一。为了给樱桃番茄抗盐育种提供理论依据和参考,本研究以耐盐性差异显著的两个品种京丹5号和小圆枣为试材,研究了不同浓度的盐胁迫对樱桃番茄幼苗形态指标的影响。结果表明:相对于株高和根长,叶面积的减小对盐胁迫更为敏感。153 mmol/L的NaCl胁迫15d时的主根长对樱桃番茄品种间耐盐性的区分有一定的参考作用。

Salt injury is one of the prominent problems cherry tomatoes suffered in protected farming. In order to provide salt-resistance breeding of cherry tomatoes with theoretical basis and references, using the two varieties＂JingdanS＂and＂Xiaoyuanzao＂as materials, the effects of salt stress of different time on morphological index of cherry tomatoes seedlings were studied. Its main results were as follows： The leaf area is more sensitive to salt stress than shoot length and root length. The difference of tomato root length after 15 days treatment of 153 mmol/L NaC1 stress could be adopted as the select index of salt-resistance.