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2 早熟恢复系R1102与Zhongzao39农艺性状比较

Table 2 Comparison of agronomic traits between early maturing restorer line R1102 and Zhongzao39

农艺性状Agronomic trait Zhongzao39 R1102 株高Plant height (cm) 94.10±0.73 80.06±1.06** 有效穗数Effective panicle number 8.30±0.42 9.03±0.63 穗粒数Grains per panicle 204.83±6.83 158.99±6.63** 结实率Seed-setting rate (%) 87.46±0.01 85.07±0.01 长宽比Length-width ratio 2.26±0.00 2.09±0.00** 千粒重1000-grain weight (g) 24.99±0.08 26.90±0.21** 理论产量Theoretical yield (kg/hm2) 9241.05 7912.50 理论产量增幅 Theoretical yield increase (%) － -14.37