Phentypic and Genotypic Correlation Coefficiences and Path Ciefficient Analysis Studies of Upland Cotton
Author(s)
Niamat Ullah Khan , Sami Ullah , Shitab khan , Aftab Ahmad khan , Imran Ullah , Azhar Abbas Khan ,
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Abstract
the present study contained 16 testing genotypes that were laid out in a Randomized Complete Block Design (RCBD) with four replications at Cotton Research Station, Dera Ismail Khan, Pakistan with an objective of determining association of traits. Days to emergence, number of sympodial branches plant-1, number of nodes to first fruiting branch, Plant height, boll number plant-1, boll weight, seed cotton yield plot-1,Seed cotton yield ha-1,ginning percentage, lint yield plot-1 and ha-1, hundred seed weight, micronaire, upper half mean length, short fiber content, fiber Strength, degree of reflectance and yellownesshad showed significance difference at (p=0.05) and their genetic variability was further calculated. Associations among various traits at genotypic and phenotypic level showed that lint yield ha-1 was positively associated with seed cotton yield, boll number per plant and ginning percentage and micronaire. Path coefficient analysis at phenotypic and genotypic level for agronomic traits revealed that seed cotton yield ha-1 and ginning percentage were the most important traits in determining lint yield ha-1.These traits exerted thehighest positive direct effect on lint yield ha-1. Path coefficient analysis of quality traits at phenotypic level revealed that upper half mean length had showed the highest direct positive effect on fiber strength followed by short fiber content and fiber uniformity, respectively. The path coefficient analysis for genotypic level of fiber quality traits had showed upper half mean length, fiber uniformity and degree of reflectance had a direct positive effect on fiber strength
Keywords
correlation, direct effect, indirect effect, path coefficients, variability
References
i. Acquaah G. 2007.Principles of Plant Genetics And Breeding,Blackwell Publishing, 550Swanston Street, Carlton,Victoria 3053, Australia.
ii. AzharF.M., M. Naveed&A. Ali.2004. Correlation of seed yield with fiber characteristics of cotton. Int. J. Agri. Biol. 6(4):656- 658.
iii. Bhatt G. M. 1973. Significance of path co-efficient analysis determining the nature of character association. Euphytica22: 338-343.
iv. Campbell B.T., D.B. Weaver, R. Sharpe J.Wu& D.C. Jones. 2013. Breeding potential of elite Pee Dee germplasm in upland cotton Programs. Crop Sci. 53:894-905.
v. Campbell B.T., P.W., Chee E.L. Lubbers, D.T. Bowman,W.R. Meredith Jr., J. Johnson&D.E. Fraser. 2011. Genetic Improvement of the Pee Dee cotton germplasm collection followingseventy years of plant breeding. Crop Sci. 51:955-968.
vi. Campbell B.T., P.W. Chee E. Lubbers, D.T. Bowman, W.R. Meredith Jr., J. Johnson D. Fraser W. Bridges and D.C. Jones. 2012. Dissecting genotype × environment interactions and Trait correlations present in the Pee Dee cotton germplasm collection Following seventy years of plant breeding. Crop Sci. 52:690–699.
vii. Desai U. T., A. M. Musade S. A. RanpiseS. M. Choudhari& P. N. Kale. 1994. Correlation Studies in acid lime. J. Maharashtra Agric. Univ. 19(1): 162-163.)
viii. Desalegn Z., N. Ratanadilok& R. Kaveeta. 2009. Correlation and heritability for yield and fiber Quality parameters of Ethiopian cotton (Gossypium hirsutumL.) estimated from 15 (diallel) crosses. Kasetsart. J. (Nat. Sci.) 43:1-11
ix. Dewey D.R&Lu,K.N. 1959. A correlation and path cofficient analysis of components of crested wheat grass seed production. Agronomy Journal, 51:515-518.
x. HohenbokenW.D.1985. Phenotypic, genetic and environmental correlations. In: general and Quantitative Genetics. Chapman A.B. (ed). Elsevier Publishers,B.V.Amsterdam.pp.121-134.
xi. Khan N.U., M.B Khan, G Hassan, Farhatullah, S Batool, K Makhdoom, W Ahmad, & H.UKhan. 2010. Genetic variation andHeritability for cotton seed, fiber and oil traits in Gossypium hirsutumL. Pak. J. Bot. 42(1): 615-625.
xii. Miller P.A.& J.ORawlings. 1967. Selection for increased lint yield and correlated responses inupland cotton, Gossypium hirsutumL. Crop Sci. 7:637-641.
xiii. Percy R.G., R.G Cantrell &J Zhang. 2006. Genetic variation for agronomic and fiber propertiesin an introgressed recombinant inbred population of cotton. Crop Sci. 46:1311-1317.
xiv. Johnson H. W., H. F Robinson & R. E Comstock. 1955. Estimation of genetic and environmental variability in soybean. Agron. J.,47:314-318.
xv. Sadeghi A.,Cheghamirza K. &DorriH.R.2011. The study of morpho-agronomic traitsrelationship in common bean. Biharean Biologist5 (2):pp.102-108.
xvi. Singh B.D.2007.PlantBreeding Principles and Methods, 6th Edition. Kalyani Publishers,NewDelhi- 110002.
xvii. Ulloa M. 2006. Heritability and correlations of agronomic and fiber traits in okra-leafupland cotton population. Crop Sci., 46: 1508-1514.
xviii. Wright S.1921. Correlation and causation.Journal of Agricultural Research,20:202-209.
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