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用NaCl、Na_2CO_3、Na_2SO_4按1∶1∶1的质量比例配置成复合盐,分别以0.10%、0.20%、0.30%、0.40%的复合盐浓度处理粉红佳宝、园丽、金棚1号、菲尼克斯4个品种番茄种子,以探索4个番茄品种种子在盐胁迫下萌发及幼苗生长情况。盐胁迫处理20d后测定结果表明,4个品种番茄种子在萌发期间具有一定的耐盐性。0.10%复合盐处理对4个品种番茄种子萌发影响不显著(P>0.05),但可诱导番茄幼苗超氧化物歧化酶、过氧化物酶活性升高及种子萌发势下降,且随着胁迫程度的加剧效果越明显,相对盐害率升高,番茄品种菲尼克斯的各项指标都低于其他品种,耐盐性表现较差。
NaCl, Na2CO3, and Na2SO4 were mixed into the composite salt at the mass ratio of 1: 1: 1, and treated with 0.1%, 0.20%, 0.30% and 0.40% Phoenix four varieties of tomato seeds to explore the four varieties of tomato seeds under salt stress germination and seedling growth. The result of 20 days after salt stress treatment showed that the four varieties of tomato seeds had certain salt tolerance during germination. 0.10% compound salt had no significant effect on the seed germination of four varieties of tomato (P> 0.05), but could induce the increase of superoxide dismutase and peroxidase activity and seed germination potential of tomato seedlings, and with the degree of stress Aggravate the effect of the more obvious, the relative salt damage rate increased, Phoenix variety of indicators are lower than other varieties of Phoenix, poor performance of salt tolerance.