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 |
Field experiments were conducted for three consecutive seasons of Rabi 2010-11, 2011-12 and 2012-13 in the farmer’s field of Jagatsinghpur district of Odisha in order to study the synergistic effect of cultural practice, seed priming and foliar spray with bioagents on management of Alternaria blight of tomato. The trial was laid out in Randomized Block Design comprising ten treatments and three replications with individual plot size of 8.1 m2 (3.0 x 2.7m). The planting was made with a spacing of 60cm x 40cm with recommended dose of fertilizer such as 125:60:100 Kg N2:P2O5:K2O/ha. Removal of infected lower leaves, staking of tomato plants, seed priming with Trichoderma viride followed by foliar spraying with Trichoderma viride and Pseudomonas fluoroscens recorded the minimum PDI of 3.4%, 5.8% respectively reducing the early blight incidence by 93.4% and 88.8% respectively over control. Removal of infected lower leaves, staking of plants, seed priming and foliar spray of Trichoderma viride gave maximum fruit yield of 328.4q/ha followed by 324.9q/ha, when foliar spraying was done with Pseudomonas fluorescens. The foliar spray with Trichoderma viride and Pseudomonas fluoroscens with priming of seeds were also proved effective by reducing the disease by 78.0% and 73.0% as well as increasing the yield by 42.4% and 43.7% respectively. Considering the effects of cultural practices such as the removal of infected lower leaves and staking of plants could reduce the disease by 50.2% and thereby increasing the fruit yield over control about 26.5% which recorded 1: 9.7 cost benefit ratio and found to be the best in all respect.
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