MORPHOLOGICAL, MOLECULAR CHARACTERIZATION AND BREEDING FOR BIOTIC AND ABIOTIC STRESS IN MANGO (MANGIFERA INDICA L.)

M.R. Dinesh, C. Vasugi , K.V. Ravishankar
Mango (Mangifera indica L.) is the most important fruit crop in India having socio-economic significance. Morphological characterization involves the study of development of form, structure with attempts being made to interpret these on the basis of similarity and origin. Owing to the high heterozygosity and seedling propagation, nomenclature ambiguity is one of the main impediments in classification of mango. Under the morphological characterization the widely used keys are the ones developed by ‘Bioversity International’ which has 54 characteristics. Morphological characterization has assisted in the classification of cultivars but ambiguity in nomenclature persists due to its limitation by way of minor differences between the characteristics. Molecular markers are used to measure diversity at DNA level and are not much influenced by environmental conditions like morphological markers. Classification of cultivars and screening of cultivars for biotic and abiotic stress would help in selecting the parents for the hybridization program and development of recombinants resistant to various biotic and abiotic stresses. Breeding attempts for abiotic stress made in mango have centered on the rootstock improvement in few places where soil salinity is a problem. Screening of polyembryonic cultivars has shown the cultivars ‘Olour’ and ‘Bappakkai’ to be tolerant compared to others.
Dinesh, M.R., Vasugi , C. and Ravishankar, K.V. (2015). MORPHOLOGICAL, MOLECULAR CHARACTERIZATION AND BREEDING FOR BIOTIC AND ABIOTIC STRESS IN MANGO (MANGIFERA INDICA L.). Acta Hortic. 1066, 37-46
DOI: 10.17660/ActaHortic.2015.1066.3
https://doi.org/10.17660/ActaHortic.2015.1066.3
abiotic, biotic, breeding, characterization, mango, markers, morphological, molecular
English

Acta Horticulturae