叶子可以通过改善光合作用和调节离子恒温来提高米盐耐受性
Yang Liu1, Qi Zhu1, Rongkai Li1
1Jiangsu Key Laboratory of Crop Cultivation and Physiology/Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Key Laboratory of Saline-Alkali Soil Reclamation and Utilization in Coastal Areas, The Ministry of Agriculture and Rural Affairs of China/Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, China.
Frontiers in plant science
|July 1, 2025
概括
硫酸的叶子应用显著提高了沿海盐土壤中的水产量和生物量. 20克L-1的最佳度可增强光合作用,降低毒性,提高作物弹性.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 植物生理学 植物生理学
背景情况:
- 沿海盐性性土地对作物生产,特别是大米的生产构成重大挑战.
- 在这些环境中提高作物产量是关键的研究重点.
研究的目的:
- 调查叶状硫酸应用在提高米盐耐受性和产量的有效性.
- 确定硫酸的最佳度,以改善盐条件下的水栽培.
主要方法:
- 实地实验是在中国延市盐土壤中进行的.
- 在结合和标题阶段,米植物接受了四种不同度的硫酸 (10,20,30和40克L−1) 处理.
- 测量包括水产量,生物质,光合作用参数,叶尖枯和离子积累.
主要成果:
- 硫酸的应用显著提高了所有测试盐水位的产量和总生物量,盐度较高时效果更大.
- 治疗改善了Rubisco酶活性和叶绿素含量,延迟了叶尖枯,增强了光合作用能力.
- 硫酸减少了离子 (Na+) 的积累,并改善了Mg/Na,K/Na,P/Na和Ca/Na的比率.
结论:
- 叶状硫酸的应用有效地提高了在沿海盐土壤中的米的盐分耐受性.
- 硫酸应用的最佳度被确定为20g L-1,这最大限度地提高了净光合作用率,叶绿素含量,产量和生物质,同时最大限度地降低了毒性和叶尖枯.
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