Thumbnail Image

M. Sc. Dissertations

Browse

20121
Reset filters
Subject: Plant Pathology × Author: Manmohan × End date: 2012 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Integrated management of foliar diseases of rapeseed-mustard
    (CCSHAU, 2012) Manmohan; Mehta, Naresh
    The present investigation on “Integrated management of foliar diseases of rapeseed-mustard” was carried out in field. The disease intensity of white rust on leaves in relation to both varieties (Varuna, RH-9801), both spacing and four dates of sowing increased with delay in dates of sowing. Alternaria bight intensity on leaves and pods decreased with delay in dates of sowing. However the powdery mildew intensity on leaves and pods increased with delay in dates of sowing. Weather variables, T. Max., T. Min., RHM, RHE, and SS had played positive and significant role in the progression of all the three foliar diseases of Indian mustard. The yield parameters in relation to dates of sowing and spacing decreased with delay in dates of sowing. Integrated management of white rust, and Alternaria blight of Indian mustard revealed that three sprays of mancozeb were found highly effective in controlling these diseases. However, two sprays of mancozeb and one spray of Sulfex were found highly effective managing powdery mildew. The evaluation of different Brassica genotypes against foliar diseases of rapeseed-mustard, the maximum white rust intensity was observed in variety RH-9801 and minimum was in variety RH- 9304, but disease did not appear in the cultivars, YSPb-24, BSH-1, HC-9002, GSH-1 and B. alba, While Alternaria blight maximum on BSH-1. However, the maximum powdery mildew intensity was recorded in variety Varuna and minimum in HC-9002 and YSPb-24. Alternaria blight and powdery mildew did not appear in the cultivar B. alba. The progression of white rust, Alternaria blight and powdery mildew on leaves in all the cultivars showed that the progression was well in staggering dates of observations and reached maximum in the end of crop season.