赤霉素浸种对干旱胁迫下甜菜种子萌发和幼苗生长的影响

孙梦媛, 张必周, 张辉, 陈学亮, 张自强, 王良, 付增娟, 赵尚敏, 鄂圆圆, 张博文, 郑文哲

Effects of Gibberellin Soaking on Seed Germination and Seedling Growth of Sugar Beet under Drought Stress

Sun Mengyuan, Zhang Bizhou, Zhang Hui, Chen Xueliang, Zhang Ziqiang, Wang Liang, Fu Zengjuan, Zhao Shangmin, E Yuanyuan, Zhang Bowen, Zheng Wenzhe

表1 不同浓度PEG-6000胁迫对甜菜种子萌发的影响

Table 1 Effects of different concentrations of PEG-6000 stress on the germination of sugar beet seeds

品种 Variety 处理 Treatment 发芽势 Germination potential (%) 发芽率 Germination rate (%) 发芽指数 Germination index 活力指数 Vigor index NT39106 0% 93.00±2.00a 96.00±1.00a 42.42±0.93a 213.27±8.85a 5% 90.33±0.58a 95.00±1.00a 40.09±0.43b 167.76±4.63b 10% 87.33±1.53b 93.33±1.53a 35.41±0.66c 126.03±6.82c 15% 45.33±3.21c 84.67±1.53b 24.71±0.50d 57.75±1.10d 20% 0.00±0.00d 16.00±2.65c 3.13±0.44e － 25% 0.00±0.00d 0.00±0.00d 0.00±0.00f － NT2206 0% 94.67±2.08a 97.00±1.73a 44.55±0.98a 236.04±10.52a 5% 94.33±2.89a 96.33±0.58a 41.58±1.68b 190.15±23.73b 10% 87.00±2.65b 94.67±2.31a 35.94±0.92c 133.61±7.96c 15% 55.67±6.43c 85.33±3.06b 26.58±0.26d 67.22±2.85d 20% 0.00±0.00d 8.00±2.65c 1.56±0.46e － 25% 0.00±0.00d 0.00±0.00d 0.00±0.00e －