提高陈年番茄种子发芽率的外源物质筛选

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摘要：以陈年圣美101番茄种子为材料，探究了水杨酸、硫酸锌、硝酸钾、氯化钙及磷酸二氢钾等外源物质浸种催芽对番茄种子萌发的影响。结果显示，供试5种外源物质在一定浓度内均可以提高番茄种子发芽率，其中浓度为5 g/kg磷酸二氢钾效果最显著，其次是浓度为2 g/kg氯化钙，硫酸锌的效果相对较差。

关键词：番茄;外源物质;种子;发芽率

中图分类号：S641.2        文献标志码：A        文章编号：1001-1463（2021）08-0044-06

doi：10.3969/j.issn.1001-1463.2021.08.011

Abstract：The experiment used Shengmei 101 tomato seeds as research materials， the effects of exogenous substances such as salicylic acid， zinc sulfate， potassium nitrate， calcium chloride and potassium dihydrogen phosphate on seed germination of tomato were investigated. The results showed that the above five foreign substances can increase the germination rate of tomato seeds within a certain concentration， of which  the concentration of 5 g/kg potassium dihydrogen phosphate has the most significant effect， followed by 2 g/kg calclum chloride， and zinc sulfate solution has a relatively poor effect.

Key words：Tomato;Foreign substances;Seeds;Germination rate

番茄（Lycopersicon esculentum Mill.）是一種果类蔬菜，在我国栽培面积达84万hm2，既可食用也可产生经济价值。（剩余5975字）

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