小麦种质资源成株期氮效率评价及筛选

赵瑞,张旭辉,张程炀,郭泾磊,汪妤,李红霞

Evaluation and Screening of Nitrogen Efficiency of Wheat Germplasm Resources at Mature Stage

ZHAO Rui,ZHANG XuHui,ZHANG ChengYang,GUO JingLei,WANG Yu,LI HongXia

表2 小麦种质各性状指标耐氮系数PI的区间分布

Table 2 The interval distribution of nitrogen tolerance coefficient PI of each trait in wheat germplasm

年份 Year 性状 Trait 低氮胁迫N1/N3 Low nitrogen stress N1/N3 (%) 高氮胁迫N2/N4 High nitrogen stress N2/N4 (%) 0≤PI1<0.5 0.5≤PI1<1 1≤PI1<1.5 0≤PI2<0.5 0.5≤PI2<1 1≤PI2<1.5 2019 株高PH 0.00 65.74 34.26 0.00 46.30 53.70 穗长SL 0.93 71.30 26.85 0.00 25.93 74.07 旗叶长FLL 0.93 73.15 25.00 0.00 28.70 68.52 旗叶宽FLW 0.00 77.78 22.22 0.00 28.70 69.44 茎粗SD 0.00 69.44 30.5 0.00 31.48 68.52 可育小穗数FSN 0.00 50.93 49.07 0.00 38.89 61.11 穗粒数GNPS 0.93 63.8 33.33 0.00 36.11 63.89 千粒重TKW 0.00 48.08 50.96 0.00 58.16 41.84 粒长GL 0.00 47.12 52.88 0.00 61.22 38.78 粒宽GW 0.00 47.12 52.88 0.00 62.24 37.76 单穗产量GWPS 0.96 67.31 30.77 0.00 47.96 50.00 2020 株高PH 0.00 61.90 38.10 0.00 46.15 53.85 穗长SL 0.00 78.10 20.95 0.00 32.69 67.31 旗叶长FLL 0.00 66.67 32.38 0.00 37.50 62.50 旗叶宽FLW 0.00 54.29 38.10 0.00 26.92 56.73 茎粗SD 0.00 70.48 29.52 0.00 70.19 29.81 可育小穗数FSN 0.00 71.43 28.57 0.00 41.35 58.65 穗粒数GNPS 0.00 63.81 35.24 0.00 58.65 39.42 千粒重TKW 0.00 42.86 55.24 0.00 61.54 28.85 粒长GL 0.00 58.10 41.90 0.00 47.12 52.88 粒宽GW 0.00 43.81 56.19 0.00 59.62 40.38 单穗产量GWPS 0.95 59.05 34.29 0.00 57.69 41.35