天津农业科学2025，Vol.31Issue(3)：6-11,6.DOI:10.3969/j.issn.1006-6500.2025.03.002
不同梯度盐胁迫下辽宁滨海稻区耐盐水稻品种产量和品质的响应
Response of Yield and Quality of Salt-tolerant Rice Varieties in Liaoning Coastal Rice Region under Dif-ferent Gradient Salt Stress
摘要
Abstract
To enhance the utilization of saline-alkali land and improve the yield and quality of rice,this study established four simu-lated salinity environments:a control using conventional soil from the coastal area of Liaoning province(with a salt concentration of 0.15%,labeled as the salt 1 treatment and a salt content of 1.571 g·kg-1),and three gradient treatments with salt concentrations of 0.25%(salt 2,2.561 g·kg-1),0.35%(salt 3,3.523 g·kg-1),and 0.45%(salt 4,4.581 g·kg-1).The response of yield and quality of five salt-tolerant rice varieties to salt stress was investigated.The results showed that compared with the control group(soil salt con-tent of 0.15%),all five varieties exhibited varying degrees of yield reduction when the soil salt content ranged between 0.25%and 0.35%.However,their rice processing quality and taste value were significantly improved.Under 0.45%soil salinity,rice production suffered severe yield reduction and deteriorated eating quality,along with decreased chalkiness,while other appearance quality traits remained unaffected.The cooking quality of rice initially declined,but subsequently improved with increasing soil salinity levels.Re-garding grain quality,Yanjing 935 demonstrated relatively strong salt tolerance.In terms of yield maintenance,Yanjing 431 and Yan-feng 47 exhibited better salt tolerance performance.In conclusion,cultivating salt-tolerant rice varieties in saline-alkali soils demon-strates advantages in grain quality,but still faces challenges in yield improvement.Therefore,future efforts should focus on breeding salt-tolerant varieties with both high quality and yield potential,and developing high-yield cultivation techniques optimized for quali-ty production.Rational utilization of moderately and mildly saline-alkali lands should be implemented to achieve high quality and high yield rice production.关键词
辽宁滨海稻区/盐胁迫/水稻/产量/品质Key words
the coastal rice-growing region of Liaoning province/salt stress/rice/yield/quality分类
农业科学引用本文复制引用
王睿鹏,于亚辉,夏明,王莹,王彤,阙补超..不同梯度盐胁迫下辽宁滨海稻区耐盐水稻品种产量和品质的响应[J].天津农业科学,2025,31(3):6-11,6.基金项目
优质盐粳系列水稻品种与稻瘟病绿色防控关键技术示范推广(2025-XDNY-23) （2025-XDNY-23）
耐盐碱优质水稻育种栽培技术及水稻早直播栽培技术研究(JZ2023A016) （JZ2023A016）
耐盐碱水稻遗传育种与耕作栽培学科(2025XKJS8554). （2025XKJS8554）
