在树冠建立期间在干旱下种植的麻瓜基因型的形态生理特征和产量质量
Passamon Ittipong1, Poramate Banterng1,2, Nimitr Vorasoot1
1Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand.
PeerJ
|December 10, 2025
概括
在麻瓜树冠建立期间的干旱降低了生长率,但重新灌提高了产量. 基因型CMR38-125-77和Rayong 72显示出优越的粉产量和干重量,使它们成为干旱地区繁殖计划的理想选择.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 农作物科学 农作物科学
背景情况:
- 大麻 (Manihot esculenta) 对干旱的适应性对于粮食安全至关重要.
- 了解水压下的生长动态,可以为繁殖策略提供信息.
- 树冠的建立是木麻发展和产量潜力的关键阶段.
研究的目的:
- 为了确定不同木基因型的生长速度和粉产量.
- 为了评估麻豆在灌和干旱期间树冠建立的适应性.
- 为了确定干旱易受影响的环境中优越的基因型.
主要方法:
- 在两个生长季节中使用了一个2x6分块的设计,有四个复制.
- 主要地块:在树冠建立期间 (种植后90-150天) 进行全灌 versus干旱.
- 副图:六种麻豆基因型,评估生长速度和产量参数.
主要成果:
- 干旱压力降低了相对含水量,储存根生长率,茎生长率和作物生长率.
- 干旱后的重新灌增强了生长率,从而改善了生物质和产量.
- 基因型CMR38-125-77和Rayong 72的存储根干重量和粉产量显著提高.
结论:
- 大麻的基因型在树冠建立期间对干旱压力的适应性有所不同.
- 在干旱期间,CMR38-125-77表现出了卓越的表现,作物生长和相对增长率高.
- 选择的基因型,特别是CMR38-125-77,推用于针对干旱抵御力和生产力的育种计划.
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