1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)
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Item Correlation studies and the application of discriminant function for selection for yield in brinjal ( Solanum melongena, L.)(Division of Agricultural Botany, Agricultural College and Research Institute, Vellayani, 1968) Raphael, K A; Aravindakshan, MThe present study was carried out with view to formulate suitable selection index for fruit yield using discriminant function technique and to test its efficiency over direct selection . Twelve established varieties or brinjal were studied for yield and associated characters. The characters studied were, plant height, number of branches, number of leaves, number of flowers, number of fruits, percentage of fruit set, mean weight of fruits and yield . The analysis showed that these varieities do not differ significantly except for the characters, namely, number of leaves and number of flowers.Item Studies on the effect of F. W-450 and MH as male gametocides in chillies (Capsicum frutescens L.)(Division of Agricultural Botany, Agricultural College and Research Institute, Vellayani, 1967) Sadasivan Pillai, S; Kumara Pillai, PThe present investigation was undertaken in the Division of Agricultural Botany, Agricultural College and Research Institute, Vellayani during 1966-1967, with a view to evaluate the selectiveness of F.W 450 and MH on chillies as male gamotocides and to study their side effects on the general growth and yield of the crop. F.W -450 at 0.10, 0.15, 0.20, 0.25 and 0.30 and MH at 25, 50, 100, 200 and 400 ppm were applied as foliar spray at three stages of plant growth. The first spraying was given when the first flower was undergoing anthesis. Subsequent sprayings were given at an interval of 15 days in between two sprayings. Control plants (no spray) and plants sprayed with distilled water thrice, at the same stages of plant growth as the chemical spray, were also studied. Plants were raised in a randomised block design.Item Determination of phytotonic effect of insecticides on rice crop(Department of Agricultural Entomology, College of Agriculture, Vellayani, 1982) Gade Krishna Kumari; Mohan Das, NWhen applied at 15 DAS alone carbofuran at 0.5 kg ai/ha, phorate 1.25 kg ai/ha and monocrotophos and quinalphes at 0.25 kg ai/ha increased the yield significantly over control.Monocrotophos and quinalphes at 2 kg ai/ha wore found phytotoxic The higher doses of 4 kg ai/ha of carbofuran c and 10 kg al/ha of phorate were on par with the lower doses of the insecticides. This revealed the lower. dose were the maximum levels to which the plants in nursery could respond to the toxicants.