Studying the Relationship between Yield and Correlated Yield Components in Rice (Oryza Sativa L. ) using Regression and Path Analysis

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GHORBANI HAMIDREZA; Samizadeh Lahiji Habiballah; RABIEI BABAK; ALLAHGHOLIPOUR MEHRZAD

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Journal: JOURNAL OF CROP BREEDING Year:2019 | Volume:11 | Issue:31 Page(s): 115-123

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Title

Studying the Relationship between Yield and Correlated Yield Components in Rice (Oryza Sativa L. ) using Regression and Path Analysis

Author(s)

GHORBANI HAMIDREZA | Samizadeh Lahiji Habiballah | RABIEI BABAK | ALLAHGHOLIPOUR MEHRZAD | Issue Writer Certificate

Keywords

CorrelationQ2

Path CoefficientsQ2

SelectionQ1

Stepwise RegressionQ2

Yield ComponentQ2

Abstract

In order to determine the relations between different characteristics with grain yield of rice, five lines and four testers along with their progenies were arranged in a randomized complete block design with three replications and planted at the research field of rice research institute of Iran. Analysis of variance showed that there was significant difference among genotypes in all of studied traits. Phenotypic and genotypic Correlation coefficients showed that number of filled grains ( ) in panicle and panicle fertility percentage ( ) has the positive and significant Correlation with yield. Results of Stepwise Regression showed that the traits including number of filled grains in panicle, number of days to complete panicle, panicle fertility percentage and number of grains in panicle explained percent of grain yield variation. Path analysis showed that the number of days to complete panicle ( ) has the highest phenotypic direct effect and the number of filled grains in panicle ( ) has the highest genotypic direct effect on grain yield. It is recommended that genetic Selection for genotypes with higher grains yield could be done with indirect Selection for number of grains in panicle at the first step and then for the number of days to complete panicle and number of filled grains in panicle. Due to the proper characteristics of IR-----including the high number of grains in panicle, the high number of filled grains in panicle, the high fertility percentage, the number of days to complete panicle and also the high yield, is recommended to conduct the yield comparison and adaptability experiments in different years and locations.

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APA: Copy

GHORBANI, HAMIDREZA, Samizadeh Lahiji, Habiballah, RABIEI, BABAK, & ALLAHGHOLIPOUR, MEHRZAD. (2019). Studying the Relationship between Yield and Correlated Yield Components in Rice (Oryza Sativa L. ) using Regression and Path Analysis. JOURNAL OF CROP BREEDING, 11(31 ), 115-123. SID. https://sid.ir/paper/181089/en

Vancouver: Copy

GHORBANI HAMIDREZA, Samizadeh Lahiji Habiballah, RABIEI BABAK, ALLAHGHOLIPOUR MEHRZAD. Studying the Relationship between Yield and Correlated Yield Components in Rice (Oryza Sativa L. ) using Regression and Path Analysis. JOURNAL OF CROP BREEDING[Internet]. 2019;11(31 ):115-123. Available from: https://sid.ir/paper/181089/en

IEEE: Copy

HAMIDREZA GHORBANI, Habiballah Samizadeh Lahiji, BABAK RABIEI, and MEHRZAD ALLAHGHOLIPOUR, “Studying the Relationship between Yield and Correlated Yield Components in Rice (Oryza Sativa L. ) using Regression and Path Analysis,” JOURNAL OF CROP BREEDING, vol. 11, no. 31 , pp. 115–123, 2019, [Online]. Available: https://sid.ir/paper/181089/en

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