1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)
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Item Herbicide mixtures for weed management in direct seeded puddled rice (Oryza sativa L.)(Department of Agronomy,College of Agriculture, Vellayani, 2016) Sheeja K Raj; Elizabeth K SyriacItem Strain variation in Rhizoctonia solani Kuhn [Thanatephorus cucumeris (Frank) Donk] causing sheath blight of rice(Department of Plant Pathology, College of Agriculture, Vellayani, 1986) Vijayan, M; Chandrasekharan Nair, NItem Effect of application of plant protection chemicals on the survival of Rhizoctonia solani Kuhn(Department of Plant Pathology, College of Agriculture, Vellayani, 1986) Lulu Das; Chandrasekharan Nair, MIn Kerala, the incidence of sheath blight of rice is endemic causing great economic loss. The present investigation was undertaken to make a critical assessment of the efficacy of various palnt protection chemicals, viz., fungicides, insecticides and herbicides on the incidence and intensity of sheath blight of rice and on the survival of the pathogen. The organism was isolated from naturally infected rice fields and its pathogenicity proved. Studies on the viability of sclerotia revealed that they sclerotia remained viable upto 210 days in all the different types of soils namely sandy, clayey and loamy. The organism could survive on straw bits upto 180th ady only.Item Role of the rice root nematode (Hirschmanniella oryzae) in the incidence of sheath blight disease of rice in Kerala(Department of Plant Pathology, College of Agriculture, Vellayani, 1981) Gokulapalan, C; Chandrasekharan Nair, MRhizoctonia solani causing sheath blight of rice was found to infect a number of common weeds and crops raised in rice fallows in Kerala. The fungus was found to produce leaf and stem blight in groundnut plants. This is the first report of this fungus causing serial blight symptoms in adult groundnut palnts. On Sesbania aculeata (daincha), the fungus produce severe collar rot, this being the first record of this fungus on this crop in India. The occurrence of R.solani under natural conditions on the weeds, Anluda aristata and Monochoria vaginalis are reported for the first time.Item Molecular characterization of pathogens associated with post harvest diseases in elephant foot yam(Department of Plant Biotechnology, College of Agriculture, Vellayani, 2018) Adithya, V; Veena, S SItem Evaluation of biofilm based microbial antagonists for the management of soil borne diseases and growth promotion in cowpea (Vigna unguiculata L. Walp)(Department of Agricultural Microbiology, College of Horticulture, Vellanikkara, 2018) Vinay Kumar, B; Surendra Gopal, KItem Isolation and characterization of pink pigmented facultative methylotrophs (PPFMs) associated with paddy(Department of Agricultural Microbiology, College of Agriculture, Vellayani, 2018) Nysanth, N S; Meenakumari, K SItem Evaluation of direct antagonism by phylloplane bacteria, and induced systemic resistance by piriformospora indica on the suppression of foliar blight disease of amaranthus (Amaranthus tricolor L.)(Department of Plant Biotechnology, College of Agriculture, Vellayani, 2017) Gayathri Nair; Anitha, K NItem Evaluation of systemic acquired resistance and induced systemic resistance on the suppression of foliar blight disease of amaranthus (Amaranthus tricolor L.)(Department of Plant Biotechnology, College of Agriculture, Vellayani, 2017) Athira Babu, B M; Anith, K N