Bioengineering and Bioscience(CEASE PUBLICATION) Vol. 1(2), pp. 17 - 23
DOI: 10.13189/bb.2013.010202
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Comparative Genetic Variability and Heritability in Some Tomato Varieties against Fruit Borer, Shape Disorders and Their Correlation

Muhammad Iqbal¹, Waqas Ahmad^1,*, Jamil Shafi², C. M.Ayub¹, Muhammad Atiq², Muhammad Shahid³, Muhammad Saleem^4
1 Institute of Horticultural Sciences, University of Agriculture, Faisalabad (38040) Pakistan
² Department of Plant Pathology, University of Agriculture Faisalabad (38040) Pakistan
³ Department of Plant Breeding and Genetics, University of Agriculture Faisalabad (38040) Pakistan
⁴ Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad (38040) Pakistan

ABSTRACT

Present study was carried out to determine the breeding potential ten tomato (Lycopersicon esculentum) varieties to develop resistant varieties for fruit borer, fruit cracking, blossom end rot, cat face, sunscald and blotchy ripening. Coefficients of variation, heritability and correlation coefficients were determined for this purpose. Significant varietal difference for all the resistant measured was observed. The coefficients of variability for phenotype were always greater then genotypic and environmental coefficients of variation for under study characters. High heritability for fruit borer resistant, cracked resist fruit, blossom end rot resist fruit, cat face resist fruit was observed. The positive significant relationships were obtain for Cracked resist fruit-Cat face resist fruit, Blossom end rot resist fruit-Sunscald resist fruit and Cracked resist fruit-Blotchy ripened resist fruit pairs.

KEYWORDS
Tomato, Genetic variability, Heritability, Correlations, Disorders

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Muhammad Iqbal , Waqas Ahmad , Jamil Shafi , C. M.Ayub , Muhammad Atiq , Muhammad Shahid , Muhammad Saleem , "Comparative Genetic Variability and Heritability in Some Tomato Varieties against Fruit Borer, Shape Disorders and Their Correlation," Bioengineering and Bioscience(CEASE PUBLICATION), Vol. 1, No. 2, pp. 17 - 23, 2013. DOI: 10.13189/bb.2013.010202.

(b). APA Format:
Muhammad Iqbal , Waqas Ahmad , Jamil Shafi , C. M.Ayub , Muhammad Atiq , Muhammad Shahid , Muhammad Saleem (2013). Comparative Genetic Variability and Heritability in Some Tomato Varieties against Fruit Borer, Shape Disorders and Their Correlation. Bioengineering and Bioscience(CEASE PUBLICATION), 1(2), 17 - 23. DOI: 10.13189/bb.2013.010202.