水稻典型品种齐穗后干物质积累动态比较  

Dynamic Changes of Dry Matter Accumulation for Typical Rice Cultivar after Heading

作　　者：姜心禄[1,2] 吴茂力[3] 池忠志[1,2] 郑家国[1,2] 

机构地区：[1]四川省农业科学院作物研究所,四川成都610066 [2]德阳市水稻专家大院,四川德阳618300 [3]四川省原子能研究院,四川成都610101

出　　处：《西南农业学报》2012年第1期10-14,共5页Southwest China Journal of Agricultural Sciences

基　　金："十一五"国家科技支撑计划重大项目(2004BA520A05);四川省科技支撑计划(2008FZ0036);德阳市重点科技攻关项目(2007ND028)

摘　　要：为了研究超级稻品种齐穗后的干物质形成特性,为水稻高产栽培提供技术支撑,选择在四川应用较多的6个超级稻品种和3个在生产上表现典型的品种,对齐穗后的穗子、植株的干物质积累动态进行了研究。结果表明,齐穗后,川香9838、II优084、准两优527、川香727穗子的鲜重、干重增重速率较高,且在灌浆阶段0～7 d、17～29 d区间形成两个明显的峰值;II优7号、D优527、II优602、II优航1号穗子增重速率较低。II优084、准两优527、II优602齐穗后植株鲜重、干重增重速率较高,川香727、D优527、II优航1号齐穗后植株干重增重速率较低。In order to study the characteristics of dry matter formation of the typical rice cultivar after heading and provide the technical support for high-yielding rice cultivation,the plant＇s dry matter accumulation of 6 super hybrid rice varieties and 3 new rice varieties were studied.The result showed that,after heading,the fresh and dry weight of fringe of Chuanxiang 9838,II You 084,Zhunliangyou 527 and Chuanxiang 727 rapidly increased.The fresh and dry weight of fringe would respectively reached the obvious peaks in 0-7 d and 17-29 d of filling period.The fringe＇s filling rate of II You No.7,D You 527,II You 602 and II You Hang No.1 were more slower.The plant＇s fresh/dry filling rate of II You 084,Zhunliang You 527 and II You 602 were more higher,but the plant＇s dry filling rate of Chuanxiang 727,D You 527 and II You Hang No.1 increased slowly.

关 键 词：超级稻 干重/鲜重 动态 灌浆特性 增重速率 

分 类 号：S511[农业科学—作物学]