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19861
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Subject: Plant Pathology × Author: KAU × Author: Nirmala Moni, D × End date: 1986 × Start date: 1986 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of root-knot nematode Meloidogyne incognita on nodulation in cowpea
    (Department of Plant Pathology, College of Agriculture, Vellayani, 1986) Nirmala Moni, D; KAU; Sasikumar Nair
    An investigation was carried out at Colloge of Agriculture , Vellayani, Kerala, to study the effect of Infeatation with Meloidogyne incognita on nodulation and 1 1 formation in cowpea. Ten varieties of cowpea, New Era Pathenettumaniyan, HG-22, PTB-1 PTB-2, 0-152, Sundari, V-16, V-37 and V-240 were initially screened for resistance to this nematode. She plants were inoculated with 1000 second stage larvae of H.incognita on 14th day and various observations on gall number, gall fresh weight, nodule number, nodule fresh weight leaf number plant height, root length# fresh and dry weight of shoot and nematode population in infested root and soil were taken on 50th day of plant growth. Eight varieties namely Pathinettumaniyan HG-22 PSB-1 0152 Sundari V-16 V-37 and V-240 were found resistant while two varieties new Era and PTB-2 were highly susceptible to this nematode.