稻油两熟区机插水稻的适宜秧龄与品种鉴选研究  

Studies on Suitable Seedling Age and Variety for Mechanized Transplanting Rice in Rapeseed—Rice Planting Area

作　　者：姚雄[1] 任万军[1] 胡剑锋[1] 卢庭启[1] 杨文钰[1] 

机构地区：[1]四川农业大学作物栽培学与耕作学重点实验室,四川雅安625014

出　　处：《杂交水稻》2009年第5期43-47,49,共6页Hybrid Rice

基　　金：国家粮食丰产科技工程资助项目(2006BAD02A05)

摘　　要：以8个高产杂交中籼稻组合为材料,研究了秧龄和品种对稻油两熟区机插水稻秧苗素质、栽插质量和产量的影响。结果表明:45 d秧龄处理的秧苗素质、秧块状态和栽插质量较高,8个品种能获得8.23 t/hm2的平均产量,极显著高于55和35 d秧龄处理;供试品种中,Ⅱ优498较适宜大苗机插,45 d秧龄条件下可获得9.52 t/hm2的高产,其次为川香9838,早熟组合中优448的产量较低。The effects of seedling age and variety on seedling quality, mechanized transplanting quality and grain yield of rice in rapeseed-rice planting area were studied with eight high-yielding indica hybrid rice varieties as the materials. The results showed that the treatment of 45-day seedling age had better seedling quality, seedling lump traits and mechanized transplanting quality, and its average grain yield of all eight varieties reached 8.23 t/hm^2 , which is very significantly higher than those of the treatments of 55-day and 35-day seedling ages. Among the tested hybrid varieties, Ⅱ You 498 was most suitable for mechanized transplanting and its grain yield was as high as 9.52 t/hm^2 when the seedling age was 45 days. The next came to Chuanxiang 9838. The early-maturing hybrid variety Zhongyou 448 had the lowest grain yields under all three seedling ages.

关 键 词：水稻 稻油两熟区 机械化移栽 秧龄 品种筛选 

分 类 号：S511.048[农业科学—作物学] S359.4