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CP-50: A PAPAYA RING SPOT VIRUS (PRSV) TOLERANT PAPAYA GENOTYPE UNDER FIELD CONDITIONS

Article number
851_22
Pages
153 – 156
Language
English
Abstract
Papaya (Carica papaya L.) is a popular tree crop producing flavorsome fruits rich in vitamin A and C. Recently, area under papaya has decreased due to the occurrence of Papaya ring spot virus (PRSV). None of the Carica papaya was found to have natural-resistance to PRSV-P. However, screening of germplasm for identifying the field tolerant lines of papaya was carried out with disease intensity score viz., 0-1: apparently healthy, 1-2: moderately resistant, 2-3: moderately susceptible, 3-4: susceptible, and 4 and above: highly susceptible.
Among the 84 germplasm lines maintained at Horticultural College and Research Institute, accession number CP-50, a cross between Carica (Wild) × CO 6 (cultivated variety) is found to have field tolerance with disease intensity score of 1.50. The line CP-50 is a dioecious type possessing castor like leaves yielded 55.35 kg/plant in the first year and 30.17 kg in the second year.

Publication
II International Symposium on Papaya
Authors
T.N. Balamohan, J. Auxcilia, A. Thirugnanavel, S.K. Manoranjitham
Keywords
breeding, Carica, genotype, germplasm, PRSV, tolerance
Full text
https://doi.org/10.17660/ActaHortic.2010.851.22
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