1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)

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    Cytomorphological and chemical studies on intervarietal crosses of Capsicum annuum, L.
    (Division of Agricultural Botany, Agricultural College & Research Institute, Vellayani, 1970) Manikantan Nair, P; Mary K George
    1. The cytomorphological and chemical aspects of four F1 hybrids of crosses involving five varieties of Capsicum annuum L. were studied . The variety ' Local blue' which possessed mosaic resistance , prolific bearing habit , long life span and high pungency was selected as the common seed parent. The selected pollen parents were, Russian, Indian long red , Chinese giant and Oskosh which were gifted with a higher content of ascorbic acid and sucrose and larger fruit size , but lacking the qualities of the common seed parent. 2. All the four F1 hybrids manifested a marked degree of heterosis in many economically important attributes like , carliness in blooming, number of leaves, number of branches, leaf area and chemical constituents like ascorbic acid and sucrose. 3. An intermediate condition was observed with regard to height , spread, number of fruits, fruit size and number of F2 seeds
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    Studies on intervarietal hybrids of tomato
    (Division of Agricultural Botany, College of Agriculture, Vellayani, 1975) Rema Bai, N; Mary K George
    The present investigations were carried out in College of Agriculture, Vellayani during the year 1974-75. Five varieties of Lycopersion esculentum viz., YRFN-3, Mech9, VF36, Walter and Local were utilised for intercrossing. Investigations on the quantitative and qualitative characters, heterosis, hybrid sterility and sucrose content of the parents and hybrids were undertaken. Though the hybridisation work was done in all combinations, there was fruit setting only in fourteen crosses. YRFN-3 as male parent failed to cross with any other varieties except with Walter. In this case though fruit setting was occurred, seeds obtained were not viable. YRFN-3 as female parent also failed to cross with any other varieties except with Local.
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    Evaluation of the productivity of chilli hybrids
    (Department of Plant Breeding, College of Agriculture, Vellayani, 1986) Elizabeth Philipose; Manikantan Nair, P
    A study was conducted at College of Agriculture, Vellayani, for evaluating the productivity of six intervarietal chilli (Capsicum annuum L.) hybrids obtained by crossing four inbreds in all possible combinations without reciprocals. Since the germination of the combination PR x PCl was poor, the other five hybrids along with four parents were evaluated in a 9 x 3 RED during 1984-85 and 1985-86. Observations on twenty quantitative and five five qualitative attributes were recorded. The statistical analysis included analysis of variance , pooled analysis and the estimation of genetic parameters, correlations among sixteen quantitative traits and three types of heterosis namely relative heterosis, heterobeltiosis and standard heterosis