PhD Thesis

Permanent URI for this collectionhttp://localhost:4000/handle/123456789/48

Browse

Start date: 1963End date: 1969

Search Results

Now showing 1 - 5 of 5
  • No Thumbnail Available
    Item
    Studies on the rice swarming caterpillar , Spodoptera mauritia boisduval in Kerala
    (Division of entomology ,Agricultural college and research institute ,Vellayani., 1967) Thomas, B; M R G K Nair
  • No Thumbnail Available
    Item
    Studies on certain chemical constituents of banana leaves in relation to incidence of leaf spot diseases: A note on the fungi occurring on banana
    (Division of Plant Pathology ,Agricultural College and Research Institute ,Vellayani, Trivandrum, 1966) Chandrasekharan Nair, M K; Sam Raj, J
  • No Thumbnail Available
    Item
    Investigations on hybrid vigour in bhindi ( Abelmosohus esculentus L. Monech)
    (Division of Agricultural Botany, Agricultural college & research institute , Vellayani Trivandrum, 1965) Mohamad Isaack, A; Kumara Pillai, P
    This investigations was carried out in the Agricultural botany division of the Agricultural college and research institute, Vellayani during the year 1964-65 (october, 1964 to June 1965). Seeds of four varieties of bhindi vis. local white pusa red pusa sowani and kilichundan obtained from the agricultural college farm were used and sown in the botanic garden of the college on 13.10.1964. A large number of flowers in each variety were selfed to have the parental seeds for the next season. Crossing between varieties in all possible combinations was also undertaken to get F1 seeds for the investigation .
  • No Thumbnail Available
    Item
    Studies on the nodal infection of red rot of sugarcane
    (Faculty of the Post Graduate School, Indian Agricultural Research Institute, New Delhi, 1963) Wilson, K I; Chona, B L
    The reaction of 6 sugarcane varieties to red rot infection through the nodal region caused by Colletotrichum falcatum Went was studied. Cane varieties Co. 445, Co. 331, Co. 312 and Co. 1181 were found to be susceptible while Co.1070 and Co. 286 proved to be moderately resistant to nodal infection. The fungus persited in an incipient form in the nodal regions of apparently healthy stalks of sugarcane. A number of leaf - sheaths also yielded the fungus on isolation. The leaf - sheath water (the water accumulated in the cavity between the leaf-sheath and stalk) collected from the above 6 varieties of sugarcane stimulated the spore germination of the fungus. The presence of sugars viz., sucrose and laevalose, detected in the leaf sheath water by paper chromatographic analysis, is believed to be responsible for the stimulation of spore germination.
  • No Thumbnail Available
    Item
    Study of differential adoption of improved farm practices in relation to reference group influence and community norms
    (Faculty of the Post Graduate School, Indian Agricultural Research Institute, New Delhi, 1966) Sankaran Potti, V S; Sharma, S K
    This research study, entitled "A study of differential adoption of improved farm practices in relation to reference group influence and community norms" was conducted during the period 1964-1965 in Khanjawala block in the Union Territory of Delhi. The objectives of the study have been: (1) To study adoption of farm practices as a function of reference group influence. (2) To find out the composition of reference groups which influence adoption behaviour. (3) To study the influence of community innovativeness norms on individual innovativeness. (4) To study the extent to which community innovativeness norms are related to other community characteristics. Three villages, out of the total of fifty six villages in Khanjawala block, representing three different types of community as social system norms, namely, modern, transitional and traditional were selected for the study. The respondents of the study constited of 222 farmers representing the total number of heads of farming families residing in these three villages.