Integrated management of Fusarium Wilt of Vegetable Cowpea (Vigna unguiculata subsp. sesquipedalis(L.) Verdcourt)
By: Senthil Kumar E.
Contributor(s): Girija V K (Guide).
Material type:
BookPublisher: Vellayani Department of Plant Pathology, College of Agriculture 2003DDC classification: 632.3 Online resources: Click here to access online Dissertation note: MSc Abstract: The study "Integrated disease management of Fusarium wilt of
cowpea (Vigna unguiculata sub sp. sesquipedalis (L.) Verdcourt)" was
conducted at the Department of Plant Pathology, College of Agriculture,
Vellayani, Kerala Agricultural University during 2001-2003. Three
species of Fusarium were found associated with cowpea wilt in
Thiruvananthapuram district. They were identified as Fpallidoroseum,
Foxysporum, Fisolani. Of these, Fpallidoroseum was the most virulent
pathogen.
Two fungal antagonists viz., Trichoderma viride (A7) and T. virens
(A1S) isolated from cowpea rhizosphere were highly effective in inhibiting
F pallidoroseum under in vitro conditions. Two fluorescent
pseudomonads, P, and P9 showed significant suppression of the pathogen.
Pot culture experiments using biocontrol agents revealed that T. viride was
most effective in reducing the disease and in enhancing the plant biomass
and nodulation.
Among the fungicides tested, mancozeb (0.3 %) and carbendazim
(0.1 %) showed significant inhibition of the pathogen under in vitro
conditions and suppression of wilt disease under in vivo conditions. There
was also enhancement of plant growth and nodulation of cowpea.
However, carbendazim caused suppression of Trichoderma. So, mancozeb
was selected as the fungicidal component for development of integrated
disease management package.
Neemcake supported the growth of the antagonistic fungus, T.
viride and inhibited the mycelial growth of the pathogen, F
pallidoroseum. The soil application of neemcake significantly decreased
the disease and increased plant growth.
Combination of seed treatments and soil application of T. viride,
soil application of neemcake (150 kg/ha) and soil drenching with
mancozeb (0.3 %) effectively suppressed Fusarium wilt of cowpea. It also
appreciably increased the biomass and pod yield of the crop.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 632.3 SEN/IN (Browse shelf) | Available | 172185 |
Browsing KAU Central Library, Thrissur Shelves , Shelving location: Theses Close shelf browser
MSc
The study "Integrated disease management of Fusarium wilt of
cowpea (Vigna unguiculata sub sp. sesquipedalis (L.) Verdcourt)" was
conducted at the Department of Plant Pathology, College of Agriculture,
Vellayani, Kerala Agricultural University during 2001-2003. Three
species of Fusarium were found associated with cowpea wilt in
Thiruvananthapuram district. They were identified as Fpallidoroseum,
Foxysporum, Fisolani. Of these, Fpallidoroseum was the most virulent
pathogen.
Two fungal antagonists viz., Trichoderma viride (A7) and T. virens
(A1S) isolated from cowpea rhizosphere were highly effective in inhibiting
F pallidoroseum under in vitro conditions. Two fluorescent
pseudomonads, P, and P9 showed significant suppression of the pathogen.
Pot culture experiments using biocontrol agents revealed that T. viride was
most effective in reducing the disease and in enhancing the plant biomass
and nodulation.
Among the fungicides tested, mancozeb (0.3 %) and carbendazim
(0.1 %) showed significant inhibition of the pathogen under in vitro
conditions and suppression of wilt disease under in vivo conditions. There
was also enhancement of plant growth and nodulation of cowpea.
However, carbendazim caused suppression of Trichoderma. So, mancozeb
was selected as the fungicidal component for development of integrated
disease management package.
Neemcake supported the growth of the antagonistic fungus, T.
viride and inhibited the mycelial growth of the pathogen, F
pallidoroseum. The soil application of neemcake significantly decreased
the disease and increased plant growth.
Combination of seed treatments and soil application of T. viride,
soil application of neemcake (150 kg/ha) and soil drenching with
mancozeb (0.3 %) effectively suppressed Fusarium wilt of cowpea. It also
appreciably increased the biomass and pod yield of the crop.
There are no comments for this item.