湿酸在叶子上的应用是否会影响水压玉米的生长和营养状况?
Britta Pitann1, Kamran Khan1, Karl H Mühling1
1Institute of Plant Nutrition and Soil Science Kiel University Kiel Germany.
Plant-environment interactions (Hoboken, N.J.)
|June 17, 2024
概括
酸的应用并没有改善水浸或干旱压力下玉米的生长. 然而,它显示出在面临水浸条件的玉米植物中减轻缺乏的潜力.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 环境科学 环境科学
背景情况:
- 气候变化对玉米 (Zea mays L.) 产量构成风险,原因是水压力增加.
- 众所周知,胺酸可以增强干旱耐受性,但它们对浸水植物的影响还未得到充分研究.
- 制定减轻水资源压力的战略对于确保全球粮食安全至关重要.
研究的目的:
- 研究一种新型酸产品在浸水条件下对玉米生长和营养状况的影响.
- 评估酸应用在减轻各种水应激类型,包括浸水,干旱和交替应激等方面的有效性.
- 为了确定湿酸对玉米营养吸收,特别是 (P) 和 (Zn) 的影响.
主要方法:
- 玉米植物接受了三种水压处理:浸水,交替浸水和干旱,以及14天的干旱.
- 在压力开始时,从乌克兰本托尼特采矿中提取的湿酸产品被涂在叶子上 (1%v/v).
- 测量包括土壤植物分析发展 (SPAD) 值,新鲜重量,压力后的P和Zn度.
主要成果:
- 干旱压力降低了新鲜花的重量,而淹水并没有显著影响它.
- 在水淹没的情况下,SPAD读数下降,但在干旱期间没有下降;交替压力显示最初下降,然后稳定.
- 在所有压力条件下,叶子酸的应用对生长和SPAD值无效,但它确实减轻了水浸下Zn度的下降.
结论:
- 测试的湿酸产品显示出在水浸压下改善玉米植物中Zn状态的潜力.
- 浸水压力可以导致 Zn 缺乏,独立于 P 缺乏,尽管存在安托素变色.
- 需要进一步的研究来优化酸的应用,以减轻对作物生产的各种水应激影响.
更多相关视频
08:31Kinematic Analysis of Cell Division and Expansion: Quantifying the Cellular Basis of Growth and Sampling Developmental Zones in Zea mays Leaves
Published on: December 2, 2016
10.9K
06:28Author Spotlight: Unraveling Plant Responses to Abiotic Stresses Using the PlantScreen Robotic Platform
Published on: June 7, 2024
1.7K
相关概念视频
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Adaptations that Reduce Water Loss
25.5K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.5K
Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K
