Record Details

MANAGEMENT OF CHILLI (Capsicum annum L.) WILT [Fusarium solani (Mart.) Sacc.]

KrishiKosh

View Archive Info
 
 
Field Value
 
Title MANAGEMENT OF CHILLI (Capsicum annum L.) WILT [Fusarium solani (Mart.) Sacc.]
 
Creator Mr. J.R.Talaviya
 
Contributor Dr. B. K. Chovatiya
 
Subject plant pathology
 
Description Chilli (Capsicum annum L.) is one of the most important vegetable crops grown in India for the value of its fruits in making spices and condiments. During the survey, chilli crop was found moderately to severely affected by wilt in Gondal taluka, of Rajkot district. Looking to the seriousness of the disease, present investigation was undertaken to find out suitable control measures for minimizing the crop looses.
Chilli wilt produced various types of symptoms in pot and field conditions. Leaves turned yellow and losed its turgidity. Collar region of plant was dry and turned to brown. When roots of such infected plants were split vertically from collar region to downwards, the vascular system showed brownish discoloration. The repeated isolation from infected plants revealed the association of Fusarium sp. which was identified as Fusarium solani (I.T.C.C. No.-8181.11). The pathogenicity was successfully proved by soil inoculation method.
In laboratory screening, systemic fungicides carbendazim and thiophanate methyl were quite effective in inhibiting the radial growth of F.solani and gave 97.81 and 84.45 per cent inhibition, respectively. Among non systemic fungicides, thiram followed by chlorothalonil proved the most effective in suppressing the growth of F.solani and gave 67.78 and 62.79 per cent inhibition, respectively. In combination products of fungicides, carbendazim 50 wp + chlorothalonil 75 wp, carbendazim 50 wp + mancozeb 75 and carbendazim 50 wp + thiram 75 wp were most effective and gave cent per cent inhibition of test fungi.
The result of organic extract evaluated against F.solani revealed that extract of mustard cake was highly inhibitory to fungal growth followed by neem cake and gave 65.94 and 56.29 percent inhibition, respectively. Among the fungal antagonists, T. viride was most effective in growth inhibition of test fungus. Next best was T. harzianum- I followed by T. harzianum- II, T. harzianum- III, T. hamatum and T. virens.
Among seven phytoextracts tested, maximum growth inhibition was observed in garlic cloves (40.62 %) and neem leaf (34.33 %) at 10 per cent concentration. Effect of bio-control agents and fungicides on chilli wilt caused by F. solani was evaluated under pot condition. Highest reduction in disease incidence and dead plants were recorded in the treatment of T. viride. It was at par with carbendazim.
 
Date 2017-06-13T10:29:53Z
2017-06-13T10:29:53Z
2011-05
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/5810019847
 
Language en
 
Format application/pdf
 
Publisher jau,junagadh