耐低氮糜子品种的筛选及农艺性状的综合评价

陈凌,王君杰,王海岗,曹晓宁,刘思辰,田翔,秦慧彬,乔治军

Screening of Broomcorn Millet Varieties Tolerant to Low Nitrogen Stress and the Comprehensive Evaluation of Their Agronomic Traits

CHEN Ling,WANG JunJie,WANG HaiGang,CAO XiaoNing,LIU SiChen,TIAN Xiang,QIN HuiBin,QIAO ZhiJun

表5 各指标与耐低氮综合评价值（D）的相关性

Table 5 Correlations of the comprehensive value (D) for low-N tolerance with index in broomcorn millet

指标 Index 相关系数 Correlation coefficient P值 P value 株高 Plant height 0.461 0.0001 穗长 Panicle length 0.377 0.0001 草重 Straw weight 0.666 0.0001 单株穗重 Panicle weight per plant 0.858 0.0001 单株粒重 Grain weight per plant 0.812 0.0001 千粒重 1000-grain weight 0.197 0.0497 叶面积 Leaf area 0.282 0.0045 主茎节数 Number of main-stem nodes 0.037 0.7119 茎粗 Stem diameter 0.073 0.4719 氮含量 N content 0.044 0.6627 氮吸收量 N absorption 0.812 0.0001