Estimation of Phenotypic and Genotypic Correlation and Path Coefficients in Rainfed Upland Rice (Oryza sativa L.) Genotypes at Guraferda, Southwest Ethiopia

Kampe, Abayneh Kacharo; Tassew, Addis Alemayehu; Gezmu, Altaye Tiruneh

doi:10.4172/2375-4338.1000195

Cited by 4 publications

(4 citation statements)

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“…In agreement with this finding similar negative associations have been reported among the above-mentioned traits (Hasan et al, 2013;Sarker et al, 2014;Solomon and Wegary, 2016). On the contrary to this result, (Kampe et al, 2018) detected a positive significant correlation of days to 85% maturity with plant height and negative correlation with productive tillers per plant on their study at northwestern Ethiopia. Additionally, negative genotypic relation between thousand grain weight and panicle length, positive genotypic relation between filled grain with maturity and panicle length with days to heading and maturity was reported by (Table 1).…”

Section: Correlation Among Yield-related Traitsmentioning

confidence: 59%

Traits association and path coefficient analysis of yield and yield attributing traits of upland rice (Oryza sativa L.) genotypes at pawe, northwestern Ethiopia

Demeke

2023

JINAGRI

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Besides the existence of genetic variation, the relationship between traits determines whether plant breeding is successful. As a result, identifying the influence of yield-related traits on yield is critical. Hence, in 2020/21 cropping season, this study was carried out using 70 upland rice (Oryza sativa L.) genotypes at Pawe, to determine the magnitude of association and the direct and indirect influence of yield component traits on grain yield of rice. Traits such as biomass, days to heading, and days to maturity, productive tiller, panicle length, and field grain per panicle have shown medium to high positive association (0.35-0.85) with grain yield. On the Path analysis except days to heading all traits mentioned above had a positive direct influence on grain yield ranging from 0.05 to 0.62. Traits like days to heading, days to maturity, productive tillers, and grain width had moderate positive indirect effects on grain yield. Therefore, in the process of selecting rice genotypes for further breeding programs of yield improvement characters like biomass yield that had the highest positive association and high direct influence could be primarily used as selection criteria since improvement of these traits leads to grain yield increment.

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Section: Correlation Among Yield-related Traitsmentioning

confidence: 59%

Traits association and path coefficient analysis of yield and yield attributing traits of upland rice (Oryza sativa L.) genotypes at pawe, northwestern Ethiopia

Demeke

2023

JINAGRI

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“…These characters, therefore, require to be considered during selection for vigour improvement in rice. Direct positive effect of some characters indicated that selection of these traits is directly helpful for the improvement of our trait of attention (Kampe et al, 2018). The indirect effect of these two traits root length and shoot length exerted positive effects for germination percentage, first leaf area, total seedling length, root dry weight and total seedling dry weight through these traits .This observation highlighted the importance of these two characters for controlling of seedling vigour index in rice.…”

Section: Path Coefficient Analysis Under Cold Conditionmentioning

confidence: 76%

“…These characters, therefore, are required to be considered during selection for vigour improvement in rice. Direct positive effect of some characters indicated that selection of these traits is directly helpful for the improvement of our trait of intrest (Kampe et al, 2018). The indirect effect of germination percentage revealed that the traits total seedling length (2.5537) followed by root dry weight (0.5160) exerted positive effect through these traits.…”

Section: Path Coefficient Analysis Under Normal Conditionmentioning

confidence: 99%

“…The correlation analysis revealed that seedling vigour index had significant positive association with total seedling length (0.953),root length(0.754), total seedling dry weight (0.691), root dry weight (0.683), shoot length (0.674), germination percentage (0.661) and first leaf area((0.674). Positive correlated result indicated that increase of one trait will result in increase of the correlated trait (Kampe et al, 2018). Thus direct selection for seedling vigour index through the aforesaid characters would be very effective in seedling vigour improvement in rice.…”

Section: Correlation Analysis Under Normal Conditionmentioning

confidence: 99%

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Correlation and Path Coefficient Analysis in Rice (Oryza sativa L.) Genotypes under Normal and Cold Condition

Sofiya

Eswaran

Silambarasan

2020

IJARe

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An experiment was conducted with the objective of determining the magnitude of association between seedling vigour index and its component characters. Fifty rice genotypes were evaluated in completely randomized design with three replications. Correlation coefficient analysis of vigour index showed positive and significant association with total seedling length, root length, total seedling dry weight, root dry weight, shoot length, germination percentage and first leaf area under normal condition. Germination percentage, total seedling length, root length, shoot length and first leaf area showed strong and significant positive association with seedling vigour index under cold condition. Thus, these traits could play pivotal role in developing cold tolerant rice. Separation of correlation coefficients into direct and indirect effects of component traits for vigour index revealed that the traits total seedling length and root dry weight exerted maximum positive direct and indirect effect respectively on vigour under normal condition. Under cold stress the traits shoot length and root length exerted maximum positive direct and indirect effects respectively for vigour index. These characters, therefore, are required to be considered during selection for vigour improvement in rice under normal and cold condition in rice.

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Studies on Correlation and Path Coefficient Analysis in Hybrid Rice (Oryza sativa L.) for Yield and Quality Traits

Vennela¹,

Srinivas²,

Reddy³

et al. 2021

IJBSM

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The present investigation was carried out at Regional Agricultural Research Station, Polasa, Jagtial, Telangana state, India to study the correlation and path coefficient analysis towards yield, physical and chemical quality traits in 46 genotypes including two checks in Randomized Block Design with two replications during kharif, october, 2019. Association of yield and yield components and among grain yield characters makes us to understand their relationship towards selecting a high yielding and good quality varieties. The result from the study revealed that all the nineteen characters studied has shown a great range of variation for correlation and path analysis. The character association studies in this experiment revealed that the trait grain yield plant-1 had showed significant positive correlation with plant height, spikelet fertility, 1000 grain weight, milling %, hulling %, kernel length and kernel breadth whereas it showed negative and non-significant association with days to 50% flowering. The path analysis studies revealed that kernel length was the major contributor for grain yield plant-1 followed by plant height, spikelet fertility, number of grains per panicle, 1000 grain weight, milling %, gel consistency, amylose content and alkali spreading value. These characters showed direct positive effects for grain yield plant-1. From the study it can be concluded that the above characters can be used directly as the selection criteria in any rice yield improvement breeding programmes.

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Estimation of Phenotypic and Genotypic Correlation and Path Coefficients in Rainfed Upland Rice (Oryza sativa L.) Genotypes at Guraferda, Southwest Ethiopia

Cited by 4 publications

References 0 publications

Traits association and path coefficient analysis of yield and yield attributing traits of upland rice (Oryza sativa L.) genotypes at pawe, northwestern Ethiopia

Traits association and path coefficient analysis of yield and yield attributing traits of upland rice (Oryza sativa L.) genotypes at pawe, northwestern Ethiopia

Correlation and Path Coefficient Analysis in Rice (Oryza sativa L.) Genotypes under Normal and Cold Condition

Studies on Correlation and Path Coefficient Analysis in Hybrid Rice (Oryza sativa L.) for Yield and Quality Traits

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