扬州大学学报（农业与生命科学版）2017，Vol.38Issue(1)：99-104,6.DOI:10.16872/j.cnki.1671-4652.2017.01.019
水培条件下棉花品种对缺磷胁迫的适应性研究初探
Study on adaptabilities of cotton variety to phosphorous deficiency under hydroponic culture
摘要
Abstract
The hydroponic culture experiment with different phosphorus (P) levels was carried out to investigate plant growth and P efficiency for 20 different cotton genotypes.Under the phosphorus deficiency stress treatment for 7 days,the plant height,dry shoot weight,biomass and P uptake efficiency was lower than that at normal phosphorus level in different cotton genotypes,but the dry root weight and P use efficiency was increased as compared with that at the normal P level.In addition,the genotypic difference in each trait was significantly different.The relative value in each trait dem onstrated a large genotypic variation.The variation coefficient of relative P use efficiency and relative plant height was maximum and minimal respectively.Correlation analysis showed that relative P uptake efficiency was significantly positive correlated with relative dry shoot weight and relative biomass;The relative P use efficiency was significantly positively correlated with relative dry root weight.Using the average of relative P uptake efficiency,relative P use efficiency,relative dry shoot weight,relative biomass and relative dry root weight as comprehensive index,we selected 3 high phosphorus efficiency genotypes and 3 phosphorus sensitive genotypes.关键词
棉花/缺磷胁迫/磷效率Key words
cotton/phosphorus deficiency stress/phosphorus efficiency分类
生物科学引用本文复制引用
晁毛妮,张志勇,张金宝,宋海娜,卜晶晶,牛富强,王清连..水培条件下棉花品种对缺磷胁迫的适应性研究初探[J].扬州大学学报（农业与生命科学版）,2017,38(1):99-104,6.基金项目
国家自然科学基金资助项目(31601347) （31601347）
河南省科技攻关计划项目(172102110022) （172102110022）
河南省高等学校重点科研项目(15A210001) （15A210001）
河南科技学院大学生创新训练计划项目(2016CX006) （2016CX006）
