农业工程学报2012，Vol.28Issue(8)：52-57,6.DOI:10.3969/j.issn.1002-6819.2012.08.008
咸水畦灌棉花耐盐性鉴定指标与耐盐特征值研究
Cotton salt tolerance appraisal indices and eigenvalue under border irrigation with saline water
摘要
Abstract
In order to use the mineralized shallow groundwater to relieve the crisis of freshwater resources shortage,the 5 years field experiment under border irrigation with mineralized water before sowing was conducted. The response relations among different salt stress levels and cotton growth index and seed cotton yield were analyzed in this study,and the cotton salt tolerance appraisal indices and eigenvalue under border irrigation with different saline water before sowing were put forward. The results showed that the relative emergency rate,relative plant height,relative leaf area,relative above-ground dry matter mass,relative fruit branch number,relative boll number and relative maximum of buds,flowers and bolls all could be used as salt tolerance appraisal indices of cotton. The relative height was recommended as the most practical salt tolerance appraisal index among them because it was easy to observation and sensitive to salt stress. The salinity of irrigation water should be below 5.48 g/L when the yield of seed cotton in saline water treatment was consistent with the fresh water irrigation treatment after a 5- year continuous irrigation.关键词
咸水/灌溉/棉花/耐盐性鉴定指标/耐盐特征值Key words
saline water/irrigation/cotton/salt tolerance appraisal indices/salt tolerance eigenvalue分类
农业科技引用本文复制引用
冯棣,张俊鹏,孙景生,郑春莲,曹彩云,李科江,刘祖贵..咸水畦灌棉花耐盐性鉴定指标与耐盐特征值研究[J].农业工程学报,2012,28(8):52-57,6.基金项目
国家自然科学基金项目(51179193) （51179193）
现代农业棉花产业技术体系建设专项资金资助(CARS-18-19):“十一五”国家科技支撑计划项目(2009BADA3B05,2009BADA3B03) （CARS-18-19）
