低温胁迫对不同耐冷性糜子品种苗期耐冷性的影响

董扬

Effects of Low Temperature Stress on Cold-Tolerance of Broomcorn Millet Varieties with Different Cold-Tolerance at Seedling Stage

Dong Yang

表2 低温胁迫对糜子幼苗生长指标的影响

Table 2 Effects of low temperature stress on growth indexes of broomcorn millet seedling

生长指标 Growth index 巴盟黑糜子胁迫与对照变化量 BM stress and control variation PAN21胁迫与对照变化量 PA stress and control variation 3 d 6 d 9 d 变化幅度 Change (%) 3 d 6 d 9 d 变化幅度 Change (%) 苗长Seedling length (mm) 0.000±0.001 -0.034±0.011 -0.058±0.034 -11.81bc -0.007±0.002 -0.061±0.034 -0.167±0.048 -19.54d 根长Root length -0.006±0.003 0.004±0.002 -0.009±0.006 -24.13e -0.013±0.003 -0.034±0.021 -0.088±0.072 -42.71g 苗茎粗Seedling stem width (mm) 0.000±0.000 0.002±0.001 0.000±0.000 -3.27a 0.002±0.002 0.002±0.000 -0.004±0.001 -6.48ab 根粗Root width (mm) -0.002±0.000 -0.006±0.002 -0.023±0.016 -9.12b -0.013±0.005 -0.067±0.055 -0.133±0.110 -17.67d 苗重Seedling weight (mg) 0.003±0.001 -0.024±0.017 -0.067±0.034 -12.79c -0.004±0.003 -0.059±0.021 -0.159±0.053 -27.79e 根重Root weight (mg) 0.005±0.002 0.001±0.001 -0.025±0.013 -18.13d -0.007±0.002 -0.096±.0049 -0.205±0.077 -34.35f