特早熟杂交早稻选育策略及其基因渗入分析

雷享亮, 方军, 袁晓泉, 李丹, 刘诗杰, 詹婧昀, 黄志华, 彭金剑, 江绍玫, 曾晓春

Breeding Strategy and Introgression Analysis on a Ultra-Early-Maturing Hybrid Rice

Lei Xiangliang, Fang Jun, Yuan Xiaoquan, Li Dan, Liu Shijie, Zhan Jingyun, Huang Zhihua, Peng Jinjian, Jiang Shaomei, Zeng Xiaochun

表5 中早39与CZY1102农艺性状差异分析

Table 5 Differences analysis of agronomic traits between CZY1102 and Zhongzao39

农艺性状Agronomic trait Zhongzao39 CZY1102 株高Plant height (cm) 94.10±0.72 79.35±0.39** 播始历期Days to flowering (d) 78.50±0.50 72.10±0.10** 有效穗数Efficient panicle number 8.30±0.42 12.80±0.65** 穗粒数Grains per panicle 204.84±6.83 133.88±5.78** 结实率Seed-setting rate (%) 87.46±0.01 85.23±0.02 千粒重1000-grain weight (g) 24.99±0.12 24.52±0.17* 长宽比Length-width ratio 2.24±0.00 2.71±0.01** 单株粒重 Weight of seeds per plant (g) 34.28±2.52 32.74±1.97 产量Yield (kg/hm2) 8571.15±39.82 8187.60±31.17 实际产量增幅 Actual yield increase (%) － -4.48