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黑色素通过常见豆中的生理和生殖稳定性来改善高温应激耐受性

S Kruthika^1,2, Apoorva Ashu^1,2, Amol P Solanke^1,3

¹ICAR- National Institute of Abiotic Stress Management, Pune, 413115, India.

Scientific reports

|October 9, 2025

概括

梅拉 (MT) 的叶子应用减轻了常见豆中的高温应激 (HTS). 这种处理改善了花粉活力,种子产量和微量营养素含量,这些微量营养素对于热带地区的作物稳定性至关重要.

科学领域:

农业科学农业科学
植物生理学植物生理学
生物化学生物化学

背景情况:

高温压力 (HTS) 通过损害生理生化过程,花发育和种子质量,显著威胁到普通豆的生产力.
耐水不足压力 (WDS) 的普通豆基因型仍然容易受到HTS的影响,因此需要采取战略来确保产量稳定.

研究的目的:

调查黑激素 (MT) 叶子应用在减轻HTS对普通豆基因型的影响中的有效性.
在HTS条件下评估MT对树冠温度,花粉活力,种子产量和微量营养素含量的影响.

主要方法:

在受控的HTS条件下进行了两项实验 (HTS-I:29-32°C,HTS-II:32-35°C).
在开花前和后的阶段,常见的豆类基因型接受了梅拉托尼 (MT) 在0和300微米的叶子应用.
测量了关键的生理和产量参数,包括树冠温度,花粉活力,种子产量和种子微量营养素含量.

主要成果:

在MT的叶子应用下,树冠温度降低了29.1% (HTS-I) 和7.9% (HTS-II).
在MT治疗后,花粉活力增加了25.8% (HTS-I) 和45.9% (HTS-II).
种子产量显著增加11.2% (HTS-I) 和34.4% (HTS-II),同时提高了种子微量营养素含量.

结论:

黑色素 (MT) 有效地减轻了普通豆中高温应激 (HTS) 的不良影响.
MT应用增强了关键的生殖和产量参数,有助于改善热应激下的作物性能.
叶子MT应用是确保在HTS易受影响的环境中种植常见豆种植产量稳定的有希望的策略.

关键词:

树冠上的温度是天花板的温度.常见的豆类常见的豆类高温应力压力是什么高温应力压力黑色素是什么黑色素是什么黑色素是什么花粉的活力,花粉的活力.

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