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3 低氮胁迫对不同糜子品种籽粒氮含量、氮素吸收的影响

Table 3 Effect of low-N stress on plant N content and N absorption in different grain of broomcorn millet varieties

参数Parameter 处理Treatment 氮含量N content (%) 氮素吸收N absorption (g/plant) 年度均值 Annual mean 2017 N+Normal-N 2.28±0.26 16.90±6.97 N-Low-N 2.12±0.18 13.71±6.82 2018 N+Normal-N 2.10±0.27 17.07±7.25 N-Low-N 1.97±0.23 14.61±7.78 2年均值 Mean of 2-year N+Normal-N 2.18±0.18 16.99±6.71 N-Low-N 2.04±0.15 14.16±6.90 范围Range N+Normal-N 1.91—2.81 0.80—32.05 N-Low-N 1.75—2.49 0.80—34.27 变异系数CV (%) N+Normal-N 8.29 39.51 N-Low-N 7.47 48.74