不同水稻种质资源重要农艺性状与发芽期耐寒性鉴定研究

潘晓雪, 胡明瑜, 王忠伟, 吴红, 雷开荣

Evaluation of Agronomic Traits and Cold Tolerance at Germination Stage in Rice (Oryza sativa L.) Germplasms

Pan Xiaoxue, Hu Mingyu, Wang Zhongwei, Wu Hong, Lei Kairong

表2 2018和2019年重庆水稻材料农艺性状测定结果

Table 2 Evaluation on agronomic traits of rice collected from Chongqing in 2018 and 2019

性状 Trait 均值 Average 最小值 Minimum 最大值 Maximum 标准差 Standard deviation 变异系数 Variation coefficient (%) 多样性指数 Diversity index 株高Plant height (cm) 115.43 79.53 174.74 16.86 14.61 1.67 穗长Panicle length (cm) 27.98 19.51 40.16 3.07 10.97 1.90 有效穗数The effective panicles per plant 11.74 8.01 17.60 1.80 15.31 1.92 单株产量Grain weight per plant (g) 37.36 11.29 58.41 8.25 22.08 1.94 千粒重1000-grain weight (g) 25.83 17.50 32.11 2.81 10.89 2.02 茎粗Stalk diameter (cm) 6.73 5.36 8.38 0.61 9.10 2.06 每穗总粒数Grain number per panicle 194.54 105.70 359.30 42.58 21.89 2.01 每穗实粒数Filled grain number per panicle 163.31 84.50 325.90 36.34 22.25 1.90 结实率Seed setting rate (%) 0.84 0.62 0.96 0.08 9.74 1.90 谷粒长Grain length (mm) 94.49 68.80 111.00 8.46 8.96 1.90 谷粒宽Grain width (mm) 31.12 25.90 39.60 2.50 7.90 1.91 谷粒长宽比Grain length/Grain width 3.07 1.80 3.80 0.40 13.01 1.85