Effect of Seed Treatments with Fungicides, Bio-agents and Botanicals against Alternaria Leaf Spot in Cabbage (Brassica olaracea var. capitata L.)
2014
Yadav, C. L. | Kumar, Navin | Rahul Kumar,
In these study chemicals, bio-agents and botanicals were used as seed treatment for their antifungal efficacy against the growth of Alternaria spp, incitant of alternaria leaf spot of Cabbage (Brassica olaracea var. capitata L.) The minimum disease severity on leaves (15.13%) was recorded in Neem oil with 3% concentration. The other treatments viz, Neem leaf extract(100%), Trichoderma viride (5 gm./kg seed), Pseudomonas fluorescens (5 gm/kg seed), carbendazim (2 gm/kg seed) and mancozeb (2.5gm/kg seed) also showed the disease severity with 16.27%, 17.35%, 16.71%, 16.31% and 16.59% respectively when compared to control. All the treatments give the yield of fresh cabbage (Head) ranged from 26.88 to 32.21 tonnes per hectare significantly, the highest yield was recorded in neem oil (3%) with 32.21 tonnes per hectare, followed by neem leaf extract 30.77, carbendazim 27.32, mancozeb 26.88, T. viride 25.99 and P. fluorescens 25.88 tone per hectare.
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