数字农科院2.0

不同药剂引发对烤烟种子萌发和幼苗低温响应的影响（2025科创中国结构化论文）

文献类型： 中文期刊

关键词： 烤烟种子;; 种子活力;; 赤霉素;; 生防腐剂;; 幼苗生长;; 低温响应

期刊名称：中国烟草科学

ISSN： 1007-5119

年卷期： 2025 年

页码：

收录情况： 北大核心（2023版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： 为更好地提高烟草催芽种子质量，提升幼苗素质培育壮苗，以中烟 100 和中川 208 为试验材料，研究了不同浓度 的赤霉素（GA3）和生防菌剂“海益农”浸种引发处理对种子发芽势、发芽率、发芽指数、幼苗最长根长、最大叶面积、幼苗 根干（鲜）质量、地上部分干（鲜）质量、抗氧化酶及丙二醛等指标的影响。结果表明，赤霉素对中烟 100 和中川 208 浸种引 发的最适浓度分别是 100 mg/L 和 50 mg/L，而“海益农”浸种引发的最适浓度则分别是 2 g/L 和 1 g/L。赤霉素和“海益农”的 大多数处理对两个烟草品种幼苗的生长都具有显著促进作用。采用隶属函数法对种子萌发指标和幼苗生长指标进行综合评 价，从促进种子萌发和培育壮苗的角度，对中烟 100 促进作用最好的处理为赤霉素 200 mg/L，其次为“海益农”1 g/L；而对 中川 208 促进作用最好的处理为“海益农”1 g/L，其次为“海益农”20 g/L。对低温胁迫下幼苗叶片 MDA 和抗氧化酶活性的 综合评价结果表明，提高中烟 100 耐冷能力的最好处理为“海益农”2 g/L，其次为赤霉素 100 mg/L；提高中川 208 耐冷能力 的最好处理为赤霉素 100 mg/L，其次为“海益农”8 g/L。综上，不同烟草品种种子萌发、幼苗提壮和抗冷害效果达到最佳时， 所使用的引发药剂种类和浓度不同，在生产中需要根据实际情况灵活选择使用。

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