首页 | 本学科首页   官方微博 | 高级检索  
     检索      

水稻籽粒灌浆特性及其与籽粒生理活性的关系
引用本文:谢光辉,杨建昌,王志琴,朱庆森.水稻籽粒灌浆特性及其与籽粒生理活性的关系[J].作物学报,2001,27(5):557-565.
作者姓名:谢光辉  杨建昌  王志琴  朱庆森
作者单位:扬州大学农学院农学系江苏扬州 225009
基金项目:江苏省重点开放实验室基金(K9863)和国家自然科学基金(39970424)资助.
摘    要:研究了6个水稻品种(组合)的籽粒灌浆特征及其与籽粒生理活性的关系.籽粒充实较好的武育粳3号和9516,强、弱势粒灌浆趋于同步,强、弱势粒的起始灌浆势(R0)、最大灌浆速率(Gmax)、平均灌浆速率(G)以及达到最大灌浆速率的时间(Tmax)差异较小.籽粒充实较差的扬稻4号、汕优63、PC311/早献党18和PC311/IR36,强、弱势粒灌浆表现为异

关 键 词:水稻  灌浆特性  籽粒生理活性
收稿时间:2000-09-19
修稿时间:2000年9月19日

Grain Filling Characteristics of Rice and Their Relationships to Physiological A ctivities of Grains
XIE Guang Hui , YANG Jian Chang WANG Zhi Qin ZHU Qing Sen.Grain Filling Characteristics of Rice and Their Relationships to Physiological A ctivities of Grains[J].Acta Agronomica Sinica,2001,27(5):557-565.
Authors:XIE Guang Hui  YANG Jian Chang WANG Zhi Qin ZHU Qing Sen
Institution:XIE Guang Hui 1,2 YANG Jian Chang 1 WANG Zhi Qin 1 ZHU Qing Sen 1
Abstract:The grain filling Characteristics of 6 rice cultivars (combinations) and their relationships to the physiological activities of grains were studied. For the cultivars with good grain plumpness of Wuyujing 3 and 9516, the filling processes of superior and inferior grains were synchronous. The difference between superior and inferior grains was small in terms of the initial filling power (R 0), the maximum filling rate (G max ), the mean filling rate (G) and the time reaching the maximum filling rate (T max ). For the cultivars (combinations) with poorer grain plumpness of Yangdao 4, Shanyou 63, PC311/Zaoxian dang 18 and PC311/IR36, the filling processes of superior and inferior grains were asynchronous, and R 0, G max and G of superior grains were larger than those of inferior ones. The content of soluble sugars was obviously higher and starch content was much lower in inferior grains than in superior ones at early grain filling stage. The physiological activities of grains (PAOGs) (content of zeatin zeatin riboside and spermidine, starch synthase activity) were higher in superior grains and for the cultivars with good grain plumpness than in inferior grains and for the cultivars (combinations) with poorer grain plumpness. PAOGs at early grain filling stage were very significantly correlated with R 0, G max , G, filled grain percentage and grain weight. PAOGs at early filling stage and grain weight were increased after spraying N 6 (benzyl) adenine at the initial heading, and the results were reversed when cycloheximide was applied. The results suggest that PAOGs manipulate the grain filling rate and grain plumpness.
Keywords:Rice  Grain filling characteristics  Physiological activities of grains
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《作物学报》浏览原始摘要信息
点击此处可从《作物学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号