湖南农业科学Issue(12)：38-43,6.DOI:10.16498/j.cnki.hnnykx.2025.012.007
增香施肥对盐胁迫下水稻生理性状及产量的影响
Effects of Aroma-Enhancing Fertilization on Physiological Characteristics and Yield of Rice Under Salt Stress
陈勇良 1阳树英 1刘小林 2刘祝龙 3廖绪胤 1周志健 1彭啟烊 1周嘉毅1
作者信息
- 1. 湖南农业大学环境与生态学院,湖南 长沙 410128
- 2. 湖南杂交水稻研究中心,农业农村部耐盐碱水稻生物学与遗传育种重点实验室,湖南 长沙 410125||三亚市国家耐盐碱水稻技术创新中心,海南 三亚 572024
- 3. 隆回县农业农村局,隆回县农业产业化协会,湖南 邵阳 422000
- 折叠
摘要
Abstract
This study investigated the effects of salt stress and aroma-enhancing fertilization on soluble protein,soluble sugar,and L-proline contents in rice leaves and grains,as well as rice yield,revealing the association mechanism between physiological responses and yield formation of rice under salt stress and aroma-enhancing fertilization conditions.Saline-alkali tolerant rice varieties Jingliangyou 326 and Shuangliangyou 138 were used as the test varieties,pot experiments were conducted to simulate the salt stress environment,and the aroma-enhancing fertilization treatment was set up.The results showed that salt stress significantly increased soluble protein and L-proline contents in leaves,but affected the soluble sugar synthesis during mid-growth stages(booting and full heading stages)of rice.Shuangliangyou 138 exhibited generally higher soluble protein and soluble sugar contents than Jingliangyou 326,demonstrating stronger osmotic regulation capacity.Grain L-proline significantly accumulated under salt stress,while the soluble sugar content markedly decreased,indicating salt stress impacted grain quality by interfering with soluble sugar and L-proline metabolic pathways.Aroma-enhancing fertilization and salt stress caused significant reductions in effective panicle number,and the theoretical yields of Jingliangyou 326 and Shuangliangyou 138 decreased by 81.93%and 84.94%respectively.Aroma-enhancing fertilization partially alleviated yield loss under salt stress through increasing the grain number per panicle(48.81%improvement in Shuangliangyou 138),but the yield could not be fully restored to the level without salt stress.This research provides reference for breeding salt-tolerant varieties and optimizing fertilization strategies in saline-alkali soils.In the future,salt-tolerant variety breeding should be integrated with fertilization technologies optimization to synergistically enhance the yield.关键词
增香施肥/盐胁迫/水稻/逆境生理指标/产量构成Key words
aroma-enhancing fertilization/salt stress/rice/physiological stress indices/yield component分类
农业科技引用本文复制引用
陈勇良,阳树英,刘小林,刘祝龙,廖绪胤,周志健,彭啟烊,周嘉毅..增香施肥对盐胁迫下水稻生理性状及产量的影响[J].湖南农业科学,2025,(12):38-43,6.
