大穗型水稻超高产产量形成特点及物质生产分析  

ANALYSIS OF THE FORMATION OF SUPERHIGH YIELD OF BIG PANICLE RICE AND ITS DRY MATTER PRODUCTION

作　　者：刘军[1] 余铁桥[1] 

机构地区：[1]湖南农业大学植物科学技术学院

出　　处：《湖南农业大学学报（自然科学版）》1998年第1期1-7,共7页Journal of Hunan Agricultural University(Natural Sciences)

摘　　要：为探讨大穗型水稻品种高产机制，对其产量形成的特点进行了分析．结果表明：超高产水稻二次枝梗结实率有较大的提高；其前期物质积累多，后期转运能力强，光合产物能更多地运送到稻穗中；齐穗期具有更高的叶面积指数，后期叶面积指数衰减慢，叶片功能期长，叶日积高．The yield formation characteristics of big panicle rice with superhigh yield were analysed. The results showed that the big panicle rice of superhigh yield had greatly increased in seedsetting percentage of secondary branches of panicle,it had accumulated more dry matter at early growth period and transfered more photosynthetaes to panicle at late growth period.The rice of superhigh yield had higher LAI at headingstage,and its LAI declined more slowly at late period,it had longer leaf available period and higher Leafdayintergration (LAI×Growth days).

关 键 词：水稻 超高产 产量 枝梗结实率 

分 类 号：S511.101[农业科学—作物学]