农业与技术 ›› 2025, Vol. 45 ›› Issue (14): 18-22.DOI: 10.19754/j.nyyjs.20250730005
• 农业科学 • 上一篇
滕彦淇 刘一丁 徐福银 常馨月 田洋 崔俊林 杨杉杉
出版日期:
2025-07-30
发布日期:
2025-07-30
作者简介:
滕彦淇(1991-),女,硕士,助教。研究方向:生物技术;通信作者刘一丁(1988-),男,博士,讲师,西南大学博士后。
研究方向:植物分子生物技术、植物非生物胁迫响应机制。
基金资助:
Online:
2025-07-30
Published:
2025-07-30
摘要: 本研究探讨NCl胁迫对4种玉米品种(ZD、MIH、HN、XY)萌发及生长的影响,并评估外源襁黑素的 缓解效应。结采表明:HN耐盐性最优,125mmol·L NaCl处理下发芽率保持80%,生物量维持90%,其根长降 幅平缓;品种响应具特异性,MH发芽率在100~150mmol·L显著捉升,由6.67%捉升至66.67%,而ZD对盐 极端敏感,在125mmol·L发芽率仅8%,根长下降84.3%;盐浓度闵值效应显著,在50mmol·L下对HN和 XY具低盐助迫作用,100mmol·L为多数品种抑制拐,点;外源褪黑素(1O0μmol·L)可有效缓解盐胁迫。研 究揭示玉米耐盐性存在器官特异性响应及品种-浓度互作规律,为盐碱地品种选育提供理论依据。
中图分类号:
. 盐胁迫下褪黑素引发对玉米种子萌发的影响[J]. 农业与技术, 2025, 45(14): 18-22.
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