寒地直立穗型与弯曲穗型水稻干物质生产与转运研究  

Study on the Production and Transportation of Dry Matter of Erect and Curved Panicle Type Rice

作　　者：马瑞[1] 

机构地区：[1]黑龙江农业科学院佳木斯分院,黑龙江佳木斯154007

出　　处：《中国稻米》2016年第2期51-53,56,共4页China Rice

摘　　要：对直立穗型与弯曲穗型水稻不同生育时期干物质生产转运进行对比分析。结果表明,两种穗型水稻苗期充实度差异达显著水平,直立穗型高于弯曲穗型;营养生长期直立穗型干物质积累有高于弯曲穗型水稻的趋势;两种穗型水稻茎鞘输出率截然相反,弯曲穗型输出而直立穗型却有积累;两种穗型水稻抽穗后的干物质积累对产量的贡献率都大于85%,直立穗型水稻后期贡献大于弯曲穗型,且均超过90%;直立穗型水稻抽穗前干物质转运率低于弯曲穗型。A comparative analysis on the production and transportation of dry matter in different growth stages of erect panicle type rice and curved panicle type rice was conducted. The results showed that the filling degree of erect panicle type rice was significantly higher than that of the curved panicle type rice. The accumulation of dry matter of erect panicle type rice in vegetative growth stage was higher than that of the curved panicle type rice, and the output rate of two panicle type rice was the opposite. The contribution rate of dry matter accumulation after heading in two panicle type rice were more than 85%, and the contribution of erect panicle type rice was higher than that of the curved panicle type rice. The dry matter translocation rate of dry matter before heading of erect pani-cle type rice was lower than that of the curved panicle type rice.

关 键 词：水稻 穗型 干物质 生产 转运 

分 类 号：S511[农业科学—作物学]