生育约束型直播水稻生育特征与稳产关键技术

张洪程,邢志鹏,翁文安,田晋钰,陶钰,程爽,胡群,胡雅杰,郭保卫,魏海燕

Growth Characteristics and Key Techniques for Stable Yield of Growth Constrained Direct Seeding Rice

ZHANG HongCheng,XING ZhiPeng,WENG WenAn,TIAN JinYu,TAO Yu,CHENG Shuang,HU Qun,HU YaJie,GUO BaoWei,WEI HaiYan

表9 基本苗密度对生育约束型直播水稻主要米质性状的影响

Table 9 Effects of basic seedling density on main quality traits of growth constrained direct seeding rice

方式 Methods 基本苗 Basic seedling (×104 hm-2) 整精米率 Head rice (%) 垩白度 Chalkiness (%) 直链淀粉含量 Amylose (%) 胶稠度 Gel consistency (mm) 蛋白质含量 Protein (%) 水直播 Water direct-seeding 120 70.25a 3.5a 15.0a 74a 9.3a 240 69.82a 3.6a 14.7ab 75a 9.3a 360 69.34a 3.8a 14.4b 76a 9.4a 旱直播 Dry direct-seeding 120 67.85a 3.9b 14.6a 73a 9.7a 240 67.14a 4.2ab 14.3a 73a 9.8a 360 66.75a 4.4a 14.2a 74a 9.8a