National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Host plant resistance is an important component for management of the melon fruit fly, Bactrocera cucurbitae (Coquillett), owing to difficulties associated with its chemical and biological control. Twenty pumpkin cultivars collected from different sources from all over India have been evaluated against the infestation of melon fly Bactrocera cucurbitae (Coq.) under terai agro-ecological conditions of West Bengal. The degree of response varies among the cultivars against melon fly infestation. Intensity of infestation significantly varied from 50 % to 100 % among the test cultivars. Maximum infestation was recorded on cultivar V1 followed by V13 and V19. Minimum percent fruit infestation was observed in cultivars V4, followed by V11 and V5. The variation in melon fly infestation among the cultivars might be due to these allele chemical parameters of the fruit. Total sugar and reducing sugar, were lowest in resistant and highest in susceptible varieties whereas phenol content was highest in resistant and lowest in susceptible varieties. Total sugar content of fruit had a significant positive correlation (P=0.01), whereas Phenol contents had significant negative correlations with the percent fruit infestation.
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