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水稻籽粒灌浆的生长分析
引用本文:朱庆森,曹显祖,骆亦其.水稻籽粒灌浆的生长分析[J].作物学报,1988,14(3):182-193.
作者姓名:朱庆森  曹显祖  骆亦其
作者单位:江苏农学院
摘    要:用 Richards 方程 W=A/(1+Be~(-kt))1/N 配合农垦57号、汕优63号等6个品种(含杂种)强、弱势粒的籽粒增重资料。依弱势粒配得方程的 N 值,将此6个水稻品种的籽粒灌浆状况分为两个类型,即:01的异步灌浆型。并据籽粒生长速率曲线的两个拐点,将籽粒灌浆过程划分为:前,中(盛)、后(至90%A 止)3个期。同时导出:起始生长势 Ro=K/N,生

关 键 词:水稻  灌浆  生长分析  源库  
收稿时间:1987-06-25
修稿时间:1988-06-21

GROWTH ANALYSIS ON THE PROCESS OF GRAIN FILLING IN RICE
Zhu Qingsen Cao Xianzu Luo Yiqi.GROWTH ANALYSIS ON THE PROCESS OF GRAIN FILLING IN RICE[J].Acta Agronomica Sinica,1988,14(3):182-193.
Authors:Zhu Qingsen Cao Xianzu Luo Yiqi
Affiliation:Jiangsu Agricultural College; Yangzhou; Jiangsu Province
Abstract:Richards equation W=A/(1+Be~(-kt)) 1/N was used to describe theweight increasing of the strong and the weak grains of six rice varieties(including hybrids).According to N values in the equation of theweak grain,the grain-filling processes of the six rice varieties fall intotwo types,one was synchronous,01.Based on two inflexion points of the grain growth curve,thegrain-filling process can be split into three phases,i.e.early,middle(vigorous)and late(up to 99% of the maximum growth weight,A).Several parameters of grain filling were derived from the equation,suchas initial growth power R_0=k/N;the time when the growth rate is maximum t_(max).G=(lnB-lnN)/k and maximum growth rate G_(max),etc.,foranalysis and comparison of grain-filling process of the two types of varieties.The results showed that comparing with asynchronous varieties,the values R_0 of the weak grain of synchronous varieties were large;itsvigorous filling phase was early,and the active filling phase of the strongand the weak grains on one panicle was somewhat overlapped,the growthwas slow in the late phase.The grain filling of the weak grains wasgreatly affected by the relative ratio of source to sink.If the source wasstrengthened,the R_0 value turned larger,the active filling period cameearlier,and vice versa.
Keywords:Rice  Grain-filling  Growth analysis  Source-sink
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