Browsing by Author "Sam Raj, J"
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Item Absorption and translocation of streptomycin by tomato plants and its effect on the microbial population in the rhizosphere(Kerala Agricultural University, Vellanikara, 1968) Rema Devi, L; Sam Raj, JItem Air spora over rice crop with special reference to Piricularia oryzae Cav.(Division of plant Pathology ,Agricultural College and Research Institute ,Vellayani, Trivandrum, 1967) Maheswari Amma, S; Sam Raj, JItem Changes in the quantity and quality of coconut oil due to microbial infection of copra(Kerala Agricultural University, 1980) P G Paul; Sam Raj, J; Susamma PhilipStudies on the quantitative and qualitative changes of coconut oil consequent on inoculation of copra with different fungi and Bacillus subtilis singly and in combination showed that there was a progressive reduction in oil content and rancidity in ail the infected samples. Maximum reduction in oil was recorded in samples inoculated with Aspergillus niger and A. flavus individually.Item Comparative resistance of certain varieties of chillies to the bacterial wilt caused by Psuedomonas solanacearum Smith(Kerala Agricultural University, 1974) Rahim, A; Sam Raj, JItem Deficiency of boron, a possible cause of the leaf rot in coconut palms(Kerala Agricultural University, Vellanikara, 1966) George, M K; Sam Raj, JItem Detection of free amino acids in the root exudates of healthy and mosaic affected tobacco plants(Kerala Agricultural University, Vellanikara, 1968) Balagopal, C; Sam Raj, J; Wilson, K IItem Diurnal periodicity of spore liberation in Corynespora cassiicola (Berk, & Curt,) Wei.(Kerala Agricultural University, Vellanikara, 1966) Bandrasekharan Nair, M C; Sam Raj, JItem Effect of seed treatment on the germination of rice seeds infected by Trichoconis padwickii Gangulay(Kerala Agricultural University, Vellanikara, 1966) Abi, Cheeran; Sam Raj, JItem Effect of T. M. V. and certain chemicals on the Rhizosphere microflora or tobacco(Kerala Agricultural University, 1970) Balakrishnan, S; Sam Raj, JItem Effects of collar mot and ring-barking on the Rhizosphere microflora and certain chemical constituents of sword bean plants(Division of plant Pathology ,Agricultural College and Research Institute ,Vellayani, Trivandrum, 1968) Kanakambaran, P N; Sam Raj, JItem Effects of collar mot and ring-barking on the Rhizosphere microflora and certain chemical constituents of sword bean plants(Kerala Agricultural University, 1974) Kanakambaran, P N; Sam Raj, JItem Growth and sporulation of three common species of Cercospora in culture(Kerala Agricultural University, Vellanikara, 1968) Gangadharan Nair, N; Sam Raj, JItem Microbial population of paddy soil in Vellayani(Kerala Agricultural University, 1975) Susamma Philip; Sam Raj, JItem Mosaic disease of Dolichos bifforus L., transmission , host range and effect of the virus on the host(Division of Plant Pathology ,Agricultural College and Research Institute ,Vellayani, Trivandrum, 1967) Sukumara Dev, V P; Sam Raj, JItem Movement of banana bunchy top virus in the plant(Kerala Agricultural University, 1970) Sam Raj, J; Ramanatha Menon, M; Christudas, S PItem Observation on the aerial application of an oil based fungicide against the leaf rot disease of the coconut palm(Kerala Agricultural University, Vellanikara, 1966) Sam Raj, J; Paily, P V; Abi, CheeranItem Observations on rhizosphere microflora in the different regions of banana roots as influenced by infection of the plant by the bunchy - top virus(Division of Plant Pathology, Agricultural College & Research Institute, Vellayani, 1965) Ranganathan, K; Sam Raj, JItem Observations on some common species of alternaria with special reference to the influence of substrate on size of conidia(Division of Plant Pathology, Agricultural College & Research Institute, Vellayani, 1967) Sukumara Varma, A; Sam Raj, JCultural, physiological and pathogenicity studies of Alternaria species causing leaf spot disease on seven different host plants have been made. of these Hibiscus Rosa-sinensis is a new record for Alternaria in India. All the isolates grew and sporulated on the different solid media tried. But grouth and sporulation on potato dextrose agar were found to be uniformly good.Minimum radial growth of all the isolates was obtained on their respective host leaf extract agar media. Sporulation was also satisfactory in this media. The isolates from Basella and on onion showed pigment production on Czapek's agar mediumItem Observations on the changes in the atmospheric spore content of Piricularia oryzae Cav. and on the intensity of blast incidence on rice(Kerala Agricultural University, 1973) Mahsswari Amma, S; Sam Raj, JItem Observations on Trichoconis padwickit Ganguly with special reference to its pathogenicity(Division of Plant Pathology, Agricultural College & Research Institute, Vellayani, 1967) Vinayaga Murthi, A; Sam Raj, JOat-meal agar with yeast tablets was found to be a good medium for the sporulation of Trichoconis padwiokii, while mycelial growth of the fungus was better in potato dextrose agar. Spores of Trichoconis padwickii germinated by the production of germ-tubes from any of the cells but more frequently from the end cells. Germination was equally good on tap water, distilled water, rain water and leaf extract.