山西农业大学学报（自然科学版）2017，Vol.37Issue(1)：11-17,7.
玉米耐低磷自交系的筛选与鉴定
Screening and identification of low phosphorus phosphous inbred lines of Maize
摘要
Abstract
Phosphorus is an essential element in maize growth.The yield and quality of maize are directly related to the national food security and the people's living standard.[Objective]Selective breeding of new varieties of corn with low phosphorus tolerance and high sensitivity.[Methods]In this study,35 maize inbred lines were selected and screened for low phosphorus tolerance in Maize under different P levels (low P and normal control).[Results]Although corn fresh weight,plant height,stem diameter and its traits and stress stress index SPAD index under low phosphorus stress can be used as the corn seedling tolerance to low phosphorus stress,the correlation of stress SPAD index and the resistance to low phosphorus content in maize seedling stage was good.[Conclusion]Using the method of membership function,35 maize inbred lines materials general can be divided into five grades,including 5 (high) of low phosphorus resistant material and grade 1 (very sensitive) resistance to low phosphorus materials are 1,4 levels of resistance to low phosphorus materials five copies,level 3 (c) of low phosphorus resistant material and grade 2 (sensitive) of low phosphorus resistant material is more,11 and 17,respectively.关键词
玉米自交系/低磷胁迫/筛选与鉴定/相关性/隶属函数Key words
Maize inbred line/Low P stress/Selection and identification/Correlation/Membership function分类
农业科技引用本文复制引用
贾亚涛,谢圣杰,牛旭龙,邢国芳..玉米耐低磷自交系的筛选与鉴定[J].山西农业大学学报（自然科学版）,2017,37(1):11-17,7.基金项目
国家自然科学基金(31200914) （31200914）
山西省高等学校创新基金(2015145) （2015145）
山西农业大学第12批大学生科技创新基金(12-38) （12-38）
