公主岭霉素诱导对育苗期水稻耐冷性的影响

安俊霞,赵宇,张正坤,史海鹏,纪东铭,曹洪翼,杜茜,李启云

Induction of Cold Tolerance in Rice at the Breeding Stage by Gongzhulingmycin

AN JunXia,ZHAO Yu,ZHANG ZhengKun,SHI HaiPeng,JI DongMing,CAO HongYi,DU Qian,LI QiYun

表2 公主岭霉素对种子发芽及幼苗生长的影响

Table 2 The effects of gongzhulingmycin on seed germination and seedling growth

16℃ 18℃ 20℃ 22℃ 24℃ 26℃ 发芽时间Germination time (d) CK 8.81±0.04a 9.10±0.06a 6.70±0.02a 5.95±0.01a 5.89±0.02b 3.91±0.01a Y-1000X 7.53±0.04 b 8.98±0.09a 6.86±0.04a 5.99±0.02a 6.03±0.01a 3.89±0.00ab G-500X 8.21±0.17ab 8.98±0.14a 6.54±0.06b 5.96±0.04a 5.97±0.04ab 3.87±0.01b G-1000X 8.75±0.25a 8.98±0.14a 6.54±0.06b 6.06±0.01a 5.99±0.01a 3.92±0.00a 发芽率 Germination rate (%) CK 71.00±2.00b 78.00±7.51a 91.33±2.91a 97.00±1.00a 88.00±1.15a 96.33±0.33a Y-1000X 64.00±2.65b 70.00±3.51a 92.00±3.00a 95.00±0.58a 88.67±1.45a 95.33±0.33a G-500X 79.67±1.45a 79.00±3.61a 92.67±0.67a 94.67±0.33a 89.67±0.33a 96.33±0.33a G-1000X 69.67±1.33b 77.00±2.31a 91.67±0.89a 94.67±0.33a 85.00±0.58a 96.33±0.33a 发芽指数Germination index CK 58.65±0.85b 81.70±6.81a 64.78±2.16b 134.87±0.42a 127.47±3.27a 156.93±0.82ab Y-1000X 71.33±4.47ab 74.78±0.53b 70.60±2.28b 132.65±1.89a 114.93±1.02b 158.91±0.96ab G-500X 81.20±7.64a 83.67±6.90a 84.55±3.08a 133.17±2.66a 121.56±3.88ab 161.91±2.06a G-1000X 60.33±7.02b 74.67±6.90b 84.55±3.08a 131.74±1.21a 115.13±0.74b 154.19±0.85b 幼苗株高 Seedling height (cm) CK 0.93±0.16b 1.72±0.48a 3.10±0.24ab 6.51±0.30a 21.50±0.19a 22.73±0.69a Y-1000X 1.52±0.10a 0.98±0.10a 2.48±0.29b 6.34±0.48a 16.96±0.43b 14.46±0.09b G-500X 1.25±0.18ab 1.38±0.25a 3.81±0.43a 6.08±0.35a 17.93±1.66b 13.70±0.57bc G-1000X 1.25±0.18ab 1.01±0.08a 2.63±0.36b 6.06±0.24a 15.80±0.40b 11.69±0.09c 幼苗鲜重 Seedling fresh weight (g) CK 0.07±0.01b 0.12±0.01a 0.18±0.01a 0.32±0.02a 0.69±0.03a 0.73±0.031a Y-1000X 0.11±0.00a 0.08±0.01b 0.18±0.002a 0.36±0.03a 0.70±0.04a 0.66±0.02b G-500X 0.08±0.01b 0.10±0.004ab 0.17±0.01a 0.27±0.02a 0.68±0.02a 0.64±0.02b G-1000X 0.08±0.01b 0.08±0.001b 0.17±0.01a 0.27±0.02a 0.59±0.02a 0.63±0.01b 幼苗干重 Seedling dry weight (g) CK 0.009±0.0003b 0.013±0.001a 0.027±0.001a 0.047±0.003ab 0.100±0.006a 0.074±0.002a Y-1000X 0.019±0.004a 0.008±0.001b 0.026±0.001a 0.054±0.003a 0.100±0.006a 0.081±0.002a G-500X 0.013±0.001ab 0.013±0.001a 0.029±0.001a 0.046±0.003ab 0.099±0.000a 0.081±0.003a G-1000X 0.011±0.001ab 0.008±0.001b 0.027±0.001a 0.042±0.003b 0.083±0.003a 0.081±0.002a