Estimation of Genetic Divergence in 40 Elite Cotton Germplasm

Nadia Jabbar, Raheela Waheed, Iqra Arooj, Sara Janiad, Humaira Yasmeen, Uzma Irfan, Naima Zaheer, Ambreen Ahmed, Atia Iqbal

Abstract


Background: Identification and development of superior cotton genotypes and their further improvement has been one of the primitive aims of plant breeding programmers. Therefore, necessity of analyzing the agro-morphological and yield attributes of advanced lines of cotton is doubtless.

Methods: Mean performance and correlation between ten different morphological, yield and fiber related attributes of forty cotton genotypes from all over the Pakistan under National Coordinated Varietal Trial were studied at Central Cotton Research Institute of Multan. Selected traits included several sympodial and monopodial branches, plant height, number of bolls per plant, staple length, seed cotton yield, boll weight, fiber strength, percentage ginning out turn and micronaire value.

Results: Statistical analysis of variance disclosed highly significant (p<0.01) differences among all cotton genotypes for majority of the characteristics. Basic descriptive statistical analysis of selected agronomic traits revealed the presence of substantial genetic variation among 40 genotypes of cotton for 10 selected traits. The correlation coefficient was determined both at p<0.05 and p<0.01 levels and the observations demonstrated that some of the characteristics exhibited positive correlation, while others displayed negative correlation with each other. Micronaire showed highly significant positive association with percentage ginning out turn (0.3412) and boll weight (0.2421 g) as well as highly significant negative association with fiber strength (-0.5973).

Conclusion: Convincingly, mean performances and correlation of different traits with one another can be utilized in cotton breeding programs in future to improve the yield of cotton seed and to select fiber related attributes with desired characteristics.

Keywords: Gossypium hirsutum; Morphological agronomic traits; Statistical analysis


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References


Bakhsh A, Rao A Q, Shahid A A, Husnain T, Riazuddin S. Insect resistance and risk assessment studies in advance lines of Bt cotton harboring Cry1Ac and Cry2A genes. American-Eurasian Journal of Agricultural and Environmental Sciences, (2009); 6(1): 1-11.

Sial K B, Kalhoro A D, Ahsan M Z, Mojidano M S, Soomro A W, Hashmi R Q, Keerio A. Performance of different upland cotton varieties under the climatic condition of central zone of Sindh. American-Eurasian Journal of Agriculture and Environmental Sciences, (2014); 14: 1447-1449.

Rizwan M, Jehanzeb F, Muhammad F, Aqeel S, Abid A, Farrukh I, Muhammad A, Ghulam S. Quantitative studies in upland cotton (Gossypium hirsutum L.) using multivariate techniques. Pakistan Journal of Agricultural Research, (2021); 34:1.

Malik TH, Ahsan MZ. Review of the cotton market in Pakistan and its future prospects. Oilseeds and fats, Crops and Lipids, (2016); 23(6): D606.

Bakhtavar M A, Afzal I, Basra S M, Ahmad A U, Noor M A. Physiological strategies to improve the performance of spring maize (Zea mays L.) planted under early and optimum sowing conditions. PloS one, (2015); 10(4): e0124441.

Rathinavel K. Exploration of genetic diversity for qualitative traits among the extant upland cotton (Gossypium hirsutum L.) varieties and parental lines. International Journal of Current Microbiology and Applied Sciences, (2017); 6(8): 2407-2421.

Tyagi P, Gore M A, Bowman D T, Campbell B T, Udall J A, Kuraparthy V. Genetic diversity and population structure in the US Upland cotton (Gossypium hirsutum L.). Theoretical and Applied Genetics, (2014); 127(2): 283-295.

Van Esbroeck G A, Bowman D T, May O L Calhoun D S. Genetic similarity indices for ancestral cotton cultivars and their impact on genetic diversity estimates of modern cultivars. Crop Science, (1999); 39(2): 323-328.

Salahuddin S, Abro S, Rehman A, Iqbal K. Correlation analysis of seed cotton yield with some quantitative traits in upland cotton (Gossypium hirsutum L.). Pakistan Journal of Botany, (2010); 42(6): 3799-3805.

Soomro A W. Estimation of genetic variability parameters in segregating F2 Generation of cotton. FUUAST Journal of Biology, (2020); 10(2): 83-87.

Sahito A, Baloch Z A, Mahar A, Otho S A, Kalhoro S A, Ali A, Kalhoro F A, Soomro R N, Ali F. Effect of water stress on the growth and yield of cotton crop (Gossypium hirsutum L.). American Journal of Plant Sciences, (2015); 6(07): p.1027.

Indest M O. Factors affecting within-plant variation of cotton fiber quality and yield. LSU Doctoral Dissertations. (2015).

Iqbal M, Naeem M, Rizwan M, Nazeer W, Shahid M Q, Aziz U, Ijaz, M. Studies of genetic variation for yield related traits in upland cotton. American-Eurasian Journal Agriculture and Environment Science, (2013); 13(5): 611-618.

Batool S, Khan N U, Makhdoom K, Bibi Z, Hassan G, Marwat K B, Khan I A. Heritability and genetic potential of upland cotton genotypes for morpho-yield traits. Pakistan Journal of Botany, (2010); 42(2): 1057-1064.

Karademir E, Karademir C, Ekininci R, Gencer O. Relationship between yield, fiber length and other fiber-related traits in advanced cotton strains. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, (2010); 38(3):111.

Khan M I, Haq H A, Ullah K, Arshad M, Majid, A. Genetic diversity and correlation studies for Cotton Leaf Curl Disease (CLCuD), fiber and yield related attributes in exotic lines of Gossypium arboreum L. American Journal of Plant Sciences, (2017); 8(03): 615.

Khan N U, Hassan G, Marwat K B, Farhatullah, Kumbhar M B, Parveen A, Umm-E-Aiman, Khan M Z, Soomro Z A. Diallel analysis of some quantitative trait in Gossypium hirsutum L. Pakistan Journal of Botany, (2009); 4(6): 3009-3022.

Sarwar G, Nazir A, Rizwan M, Shahzadi E, Mahmood A. Genetic diversity among cotton genotypes for earliness, yield and fiber quality traits using correlation, principal component and cluster analyses. Sarhad Journal of Agriculture, (2021); 37(1): 307-314.

Saeed F, Farooq J, Mahmood A, Hussain T, Riaz M, Ahmad S. Genetic diversity in upland cotton for cotton leaf curl virus disease, earliness and fiber quality. Pakistan Journal of Agricultural Research, (2014); 27(3): 226-236.


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