高粱种子对萌发温度的响应分析与耐低温萌发能力鉴定

张瑞栋,肖梦颖,徐晓雪,姜冰,邢艺凡,陈小飞,李邦,艾雪莹,周宇飞,黄瑞冬

Responses of sorghum hybrids to germination temperatures and identification of low temperature resistance

Rui-Dong ZHANG,Meng-Ying XIAO,Xiao-Xue XU,Bing JIANG,Yi-Fan XING,Xiao-Fei CHEN,Bang LI,Xue-Ying AI,Yu-Fei ZHOU,Rui-Dong HUANG

表3 温度对发芽指标的影响

Table 3 Effects of temperature on germination indicators

性状 Trait 25℃ 20℃ 16℃ 12℃ 发芽势 Germination potential (%) 79.64±11.73 a 69.73±15.26 b 37.32±24.57 c 0.00±0.00 d 发芽率 Germination percent (%) 88.55±6.92 a 85.63±8.38 b 82.85±9.34 c 66.07±18.19 d 芽长 Bud length (cm) 10.17±1.15 a 6.00±0.90 b 2.23±0.36 c 0.35±0.16 d 根长 Root length (cm) 12.54±3.01 a 12.38±2.39 a 6.48±1.01 b 1.55±0.46 c 芽重 Bud FW (mg) 90.25±12.66 a 62.58±12.88 b 24.95±5.56 c 2.56±1.70 d 根重 Root FW (mg) 48.28±20.66 b 63.76±12.48 a 37.16±9.57 c 9.41±2.96 d 根芽比(长度) Root/bud (length) 1.01±0.32 d 1.91±0.33 c 2.62±0.83 b 5.01±1.79 a 根芽比(鲜重) Root/bud (FW) 0.54±0.23 c 1.04±0.21 bc 1.57±0.56 b 4.80±2.41 a