麦 - - 在水淹压压力下的替代作物?
Britta Pitann1, Karl H Mühling1
1Institute of Plant Nutrition and Soil Science, Kiel University, Kiel, Germany.
Frontiers in plant science
|June 26, 2024
概括
麦表现出对浸水的显著耐受性,即使在关键生长阶段的压力后,也没有对谷物产量产生负面影响. 这表明麦在水淹没的条件下是一个可行的作物替代品.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 环境压力生物学
背景情况:
- 浸水给作物生产带来了重大的全球挑战,导致了大量的产量损失.
- 虽然小麦和玉米等作物的耐受性机制得到了充分的研究,但关于麦 (Avena sativa) 浸水耐受性的数据仍然有限.
研究的目的:
- 评估麦作为潜在的作物旋转替代品在水浸条件下.
- 为了确定麦品种的差异是否会影响浸水耐受性.
- 评估不同发育阶段 (BBCH 31和51) 浸水压力对麦产量的影响.
- 为了调查营养不平衡是否会导致水浸下的生长限制.
主要方法:
- 一个大规模的容器实验是使用三种麦品种进行的.
- 植物在两个不同的发育阶段 (BBCH 31和BBCH 51) 连续14天遭受水浸压力.
主要成果:
- 植物生长暂时受到早期浸水的影响,主要是由于短暂的营养缺乏.
- 然而,在所有测试的麦品种中,在早期 (BBCH 31) 和晚期 (BBCH 51) 发育阶段应用的浸水压力对成熟时的谷物产量没有影响.
- 在早期生成阶段应用的晚期浸水甚至导致谷物产量增加.
结论:
- 麦表现出相当大的耐受水浸,不管种类.
- 在浸水期间的过渡性营养不平衡并没有显著影响谷物产量.
- 麦是一种有前途的替代作物,可在容易淹水的地区种植.
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