高产优质杂交籼稻新组合“特优649”产业化技术研究 Ⅱ.高产制种技术研究  

Techniques for industrialization production of new indica hybrid rice combination Teyou 649 with high-yielding and fine grain quality Ⅱ.Techniques for high-yielding seed production

作　　者：李维科[1] 于平福[2] 

机构地区：[1]广西农业科学院水稻研究所,南宁530007 [2]广西农业科学院科技情报研究所,南宁530007

出　　处：《广西农业科学》2007年第5期515-518,共4页Guangxi Agricultural Sciences

基　　金：广西区科技厅专用型农作物新品种产业化技术研究项目(0537007-1)

摘　　要：杂交籼稻新组合特优649具有高产稳产、适应性广、株叶型好、米质较优等特点,2004年通过广西区农作物品种审定委员会审定。通过研究不同的父母本播差期、父母本行比和“九二O”用量对特优649制种产量的影响,结果表明,当第Ⅰ期父本与母本同播、1.5叶时播第Ⅱ期父本,父母本行比为2∶14,“九二O”用量在195-225g/hm^2时,F1种子产量最高,为3240.0kg/hm^2,这是特优649高产制种的关键。Indica type new rice hybrid Teyou 649 with high and stable yield potential, wide-range environmental adaptability, ideal plant type and fine grain quality, etc. , was certified and registered by Guangxi Committee for Crop Variety Registration in 2004. This experiment was conducted to study the effects of different seeding interval between male and female parents, different row ratio of male parent to female parent and different dosage of gibberellic acid applied on F1seed yield of Teyou 649. The results showed that, when the first batch of male parent was sown with the female parent at the same time, and the second batch of male parent was sown when the first batch of male parent reaching 1.5-leaf stage, and the row ratio of male parent to female parent was 2 ： 14 and the dosage of gibberellic acid was 195-225g/hm^2, the yield of F1seed of Teyou 649 reached the highest yield of 3240. 0 kg/hm^2. These are the key techniques for high-yielding seed production of Teyou 649.

关 键 词：杂交籼稻 特优649 产业化 制种 

分 类 号：S511[农业科学—作物学]