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稻油两熟区机插水稻的适宜秧龄与品种鉴选研究
引用本文:姚雄,任万军,胡剑锋,卢庭启,杨文钰.稻油两熟区机插水稻的适宜秧龄与品种鉴选研究[J].杂交水稻,2009,24(5).
作者姓名:姚雄  任万军  胡剑锋  卢庭启  杨文钰
作者单位: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
基金项目:国家粮食丰产科技工程项目 
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/hm~2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/hm~2的高产,其次为川香9838,早熟组合中优448的产量较低.

关 键 词:水稻  稻油两熟区  机械化移栽  秧龄  品种筛选

Studies on Suitable Seedling Age and Variety for Mechanized Transplanting Rice in Rapeseed-Rice Planting Area
YAO Xiong,REN Wan-jun,HU Jian-feng,LU Ting-qi,YANG Wen-yu.Studies on Suitable Seedling Age and Variety for Mechanized Transplanting Rice in Rapeseed-Rice Planting Area[J].Hybrid Rice,2009,24(5).
Authors:YAO Xiong  REN Wan-jun  HU Jian-feng  LU Ting-qi  YANG Wen-yu
Abstract: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.
Keywords:rice  rapeseed-rice planting area  mechanized transplanting  seedling age  variety evaluation
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