数字农科院2.0

NaCl处理对甜瓜种子萌发的影响

文献类型: 中文期刊

作者: 周丹;尚建立;王吉明;李娜;马双武

作者机构:

关键词: 甜瓜;种子萌发;NaCl;耐盐性

期刊名称:中国瓜菜

ISSN: 1673-2871

年卷期: 2020 年 8 期

页码:

收录情况: 北大核心(2020版) ; 农林核心(2020版)

摘要: 为了探究甜瓜种子萌发期耐盐性鉴定评价和筛选的最佳NaCl浓度,使用了20个不同的甜瓜种质在不同质量浓度NaCl处理下进行萌发试验.结果显示,NaCl质量浓度为8 g·L-1时,只有少数甜瓜发芽率显著降低;NaCl质量浓度为12 g·L-1时,不同种质甜瓜的发芽率差异明显;NaCl质量浓度为16 g·L-1时,所有甜瓜的发芽率均大幅降低;NaCl质量浓度为20 g·L-1时,90%的种质发芽率为0.发芽指数及根长数据显示,所有甜瓜在不同质量浓度的NaCl处理下的种子活力和根系生长均受到抑制,质量浓度越高抑制作用越强.综合以上结果,甜瓜萌发期耐盐性鉴定的最佳NaCl质量浓度为12 g·L-1,耐盐性筛选的最佳NaCl质量浓度为16 g·L-1,最佳数据统计时间为萌发第4天.20份甜瓜种质资源中,S02('且末泰热')的耐盐性较强,S14('金巴齿')对盐处理最为敏感,耐盐性最差.

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