红甜菜和糖甜菜的干旱耐受性分类,使用形态生理学和口腔特征
1Department of Horticulture, Bilecik Şeyh Edebali University, Bilecik, Turkey.
PeerJ
|March 25, 2025
概括
糖甜菜比红甜菜更能耐受干旱. 像膜稳定性,相对含水量和口腔密度等关键指标可以帮助识别抗旱甜菜品种,以改善农业.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 遗传学 是一个遗传学.
背景情况:
- 由于缺水,干旱对全球农业和粮食安全构成重大威胁.
- 识别和种植耐旱的作物品种对于维持粮食供应和推进育种计划至关重要.
研究的目的:
- 为了比较红甜菜的耐旱性 (Beta vulgaris L. var. 糖 (B. vulgaris L. var.) 和糖 (B. vulgaris L. var.) 已经成为一种常见的植物. 高度的国度.) 在早期的生长阶段.
- 在干旱压力条件下评估形态生理和口腔参数.
主要方法:
- 三种红甜菜和三种糖甜菜品种在30天内受到控制的干旱压力 (10%和20%的PEG-6000).
- 评估的参数包括新鲜/干重量,叶面积,干物质,叶片含量 (SPAD),叶片温度,相对含水量,膜稳定性指数,口腔密度和尺寸.
主要成果:
- 干旱压力显著降低了形态参数,红甜菜品种的减少比糖甜菜更大.
- 关键指标如相对含水量,膜稳定性指数和口腔大小在干旱期间下降.
- 在20%的PEG应力下,口腔密度增加 (158至215毫米-2),而口腔大小减少 (433至342微米2).
结论:
- 与红甜菜相比,甜菜表现出更高的干旱耐受性.
- 膜稳定性指数,相对含水量和口腔密度是选择耐旱甜菜基因型的有效参数.
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