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6 CZY1102、R1102和Zhongzao39米质比较

Table 6 Quality analysis of grains from CZY1102, R1102 and Zhongzao39

质量指标Quality index Zhongzao 39 CZY1102 R1102 糙米率Brown rice recovery (%) 80.92 81.35 82.20 精米率Head rice rate (%) 66.84 67.96 67.70 整精米率Perfect head rice rate (%) 62.23 60.55 61.50 米粒长Rice length (mm) 5.25 5.87 5.30 长宽比Length-width ratio 1.96 2.47 1.90 垩白粒率Chalky grain rate (%) 70.0 56.0 89.0 垩白度Chalkiness degree (%) 18.6 12.5 27.2 直链淀粉Amylose (%) 26.0 22.3 26.8 胶稠度Gel consistency (mm) 60.0 57.0 30.0 碱消值级 Level of alkali spreading value 4.5 5.0 6.6 透明度级Transparency level 2 1 3 水分Moisture (%) 12.30 12.47 12.20