摘要
以番茄为试材,利用不同浓度的NaCl溶液和海藻糖溶液处理番茄种子,测定发芽率、发芽势、发芽指数和活力指数。结果表明:随着盐分浓度水平的增高,番茄种子发芽能力逐渐下降,超过0.3%浓度后发芽指标下降显著;在0.3%盐胁迫下,不同浓度海藻糖对番茄种子萌发缓解作用不明显;在0.4%盐胁迫下,0.4%浓度海藻糖对活力指数提高显著,而发芽率、发芽势、发芽指数的提高均不显著,表明海藻糖在0.4%浓度时对盐胁迫具有缓解效应。
Tomto was used as experimental material to determined germination rate,germination potential, germination index and vigor index with different concentrations of NaCI solution and trehalose solution treatments. The results showed that the germination of capability of tomato seed capacity descended gradually with the increasing of NaCl solution concentrations,mitigative effect of different trehalose concentrations on 0. 3% NaCl stress of tomato seed germination was not obvious, 0. 4 % concentration of trehalose on the vigor index increased significantly, but the germination rate, germination potential and germination index did not significantly improve, that showed 0. 4% concentration or so of trehalose could mitigative salt stress for tomato seed germination.
出处
《北方园艺》
CAS
北大核心
2010年第1期38-40,共3页
Northern Horticulture
基金
黑龙江省教育厅科研资助项目(11511257)
关键词
海藻糖
盐胁迫
缓解效应
trehalose
NaCl stress
mitigative effect
