巨胚稻籽粒灌浆特性研究  

GRAIN FILLING CHARACTERISTICS OF GIANT EMBRYO RICE

作　　者：章清杞[1] 张静[1] 陈健勇[1] 张书标[1] 黄荣华[1] 杨仁崔[1] 

机构地区：[1]福建农林大学作物遗传育种研究所,福建福州350002

出　　处：《核农学报》2006年第1期6-9,共4页Journal of Nuclear Agricultural Sciences

基　　金：福建省科技攻关计划(2005N007)

摘　　要：用Richards方程对2个巨胚稻及其相应非巨胚稻品种（龙特浦B）、1813B）的籽粒灌浆过程进行拟合。研究了两类水稻品种的灌浆特性。结果表明，与非巨胚稻相比巨胚稻在起始灌浆潜势（R0）、平均灌浆速率（Gmean）、最大灌浆速率（Gmax）和灌浆持续时间t（99％）上均比对照品种低，且巨胚稻在第4—12天的灌浆高峰期间的灌浆速率明显低于对照品种，从而造成巨胚稻籽粒重的下降。The grain-filling characteristics of two giant embryo rice cultivars and their corresponding original type.s were studied. The result indicated that the initial filling power（ R0 ）, the maximum filling rate（ Gmax ）, the mean filling rate（Gmax ） and the time reaching the 99% grain weight [t（99% ）] of the giant embryo rice under research were lower than those of the corresponding original types. The filling rate from 4th day to 12th day of the giant embryo rice were also lower than that of control. As a result, the grain weight of the giant embryo rices were lower than that of wild types.

关 键 词：巨胚稻 籽粒灌浆特性 

分 类 号：S511[农业科学—作物学]