HERITABILITY STUDIES IN MANGO (MANGIFERA INDICA L.)

M.R. Dinesh, C. Vasugi, R. Venugopal
Mango is a highly heterozygous crop. The high heterozygosity of cultivars used in hybridization and the inadequate number of hybrid progenies produced has made accurate heritability analysis in mango very difficult. However, attempts made in this direction have helped as an indicator in the selection of parents in various breeding programmes. This study was taken up at the Indian Institute of Horticultural Research, Bangalore to evaluate the progenies from various combinations. The study showed the heritability was >0.9 for the fruit characters viz., fruit weight, length, width, thickness and Total soluble solids (TSS). The phenotypic coefficient of variability was lower than the genotypic coefficient of variability implying greater role of environment in the expression of characters viz., fruit weight, fruit length, fruit breadth, fruit thickness, TSS, skin weight, stone weight and pulp percentage. The heritability was observed to be high for almost all the characters, implying that selection of progenies can be carried out for the improvement. The coheritability estimates were also observed to be high for all the characteristics studied. Selection of medium sized fruits coupled with good TSS can be carried out as these are coheritable in the set of progenies studied.
Dinesh, M.R., Vasugi, C. and Venugopal, R. (2013). HERITABILITY STUDIES IN MANGO (MANGIFERA INDICA L.). Acta Hortic. 992, 321-324
DOI: 10.17660/ActaHortic.2013.992.42
https://doi.org/10.17660/ActaHortic.2013.992.42
mango, variability, heritability, coheritability, correlation
English

Acta Horticulturae