|Title:||水稻產量構成因素之研究||Other Titles:||A Study on Yield and Components of Yield in Rice||Authors:||王茂康
|Issue Date:||2-Mar-1967||Publisher:||農業試驗所||Journal Volume:||16||Journal Issue:||1||Start page/Pages:||31-34||Source:||農業研究||Abstract:||
本研究所用材料為水稻秈稻 × 粳稻雜交組合F2後裔之試驗資料，該試驗於1964年第二期作在嘉義農業試驗分所舉行，所調查之性狀項目有株高、穗長、穗重、穗數及每株谷重量，每項性狀調查時，均以單株為單位，作為統計分析。每株谷重與株高、穗長、穗重及穗數之表現型及環境相關係數均為極顯著的正相關，在一般情形下，遺傳型的相關係數要比表現型相關係數為大。
The objective of this study was to determine the application of the method of path-coefficients in analysis of the interrelations of camponents of yield with grain yield in rice.
The material used in this study was the F2 plants from the Indica x Japonica rice cross. The experiment was carried out on the second crop of 1964 at Chia-yi Agricultural Experiment Station. Agronomic characters recorded on each plant were plant height, length of panicle, weight of panicle, number of panicies, and grain yield per plant. A amalysis of variance on each character and cover-iance analysis for each pair of characters wire made.
Simple pheniotypic, genotypic and environmental correlation coefficients were calculated for pairs of the five characters. plant height, length of panicle, weight of panicle, number of panicles were positively and highly correlated with grain yield per plant. Genotypic correlations were, in general, higher than phenotypic correlations in most cases.
The results of the path coefficient analyses showed that panicle weight and number of panicles had greatest influence both directly and indirectly on grain yield, but plant height and panicle length had only minor effects.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.