不同色彩棉花抗旱性鉴定指标及评价  

Identification and Evaluation of Drought Tolerant Indices of Colored Cotton

作　　者：石有太[1] 陈玉梁[1] 罗俊杰[1] 裴怀弟[1] 张艳萍[1] 南宏宇[2] 

机构地区：[1]甘肃省农业科学院生物技术研究所,甘肃兰州730070 [2]甘肃省农业科学院作物研究所,甘肃兰州730070

出　　处：《作物杂志》2013年第1期62-67,共6页Crops

基　　金：国家转基因生物新品种培育重大专项(2009ZX08005-013 B)

摘　　要：以抗旱性不同的白棉、棕棉和绿棉品种(品系)为试验材料,应用多元统计分析的理论与方法,研究了不同水分亏缺灌溉条件下花铃期棉花生理生化指标与抗旱性的关系。结果表明:棕色棉BC05-07-18-2抗旱性最强,绿色棉G3-6抗旱性最弱,叶片相对含水量和类胡萝卜素含量可作为棉花抗旱鉴定的重要指标,叶绿素含量和可溶性糖含量可作为参考指标。棉花品种的抗旱系数与叶片相对含水量和可溶性蛋白含量存在线性回归关系,与细胞膜透性呈显著负相关。The relationship of morphological index and drought resistance in different drought-resistant colored cotton cuhivars was studied with multivariate statistical analysis method. The results showed that BC05-07-18-2 of brown cotton was the strongest drought resistance ,green cotton G3-6 was the weakest drought resistance ,and relative water content and Car content are regarded as the important indexes of drought resistance identification of cotton, Chlorophyll content and Soluble sugar content were considered as good index for determining or influencing cotton drought resistance. There was a good linear regression relationship between drought resistance coefficient and rela- tive water content, Soluble protein content, but correlationship between drought resistance coefficient and relative conductance rate was significantly negative.

关 键 词：彩色棉花 抗旱性 筛选指标 因子分析 综合评价 

分 类 号：S562[农业科学—作物学]