2. Institutional Publications
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Item Stochastic models for the explanation of trend in production of rice in Kerala for the period 1957—1958 to 1971-1972(Kerala Agricultural University, 1975) Saraswathy, P; Thomas, E JFive different models were tried to explain the production of rice in terms of area (x), and period (0. The following results were obtained. A t yt = 946.2 x 1.022r with r = 0.80, y = 166.4 x 1 263* with i- = 0.84 A y ==287.9 x 1.172 X l.OOS1 with P ^ 0.84 A n O^RS^O t y{ := 925.47 . eU' with r = 0.64 and t A 0.032018 £ x. -0.231688 t with P = 0.66 yt = 925.47 . e 1 J The values of the coefficients of determination show that these models fit the data satisfactorily.Item Estimation of leaf area in greengram (Phaseolus Aureus Roxb) using linear parameters(Kerala Agricultural University, 1978) Sreekumar, S O; Thomas, E J; Saraswathy, P; Mary K GeorgeItem Path analysis in green gram (Phaseqlus Aureus Roxb.)(Kerala Agricultural University, 1979) Saraswathy, P; Sreekumar, S G; Thomas, E JItem Economic evaluation of rice cultivars under different nutrient levels(Kerala Agricultural University, 1998) Sheela, K R; Thomas Alexander, V; Saraswathy, PItem TG-3, a variety of groundnut suitable for cultivation under partial shade in coconut gardens(Kerala Agricultural University, 1991) Sreekumar, S G; Gopinathan Nair, V; Saraswathy, PComparative evaluation of eight varieties of groundnut was conducted at the Regional Agricultural Research Station of NARP (SR), College of Agriculture, Vellayani for three years during 1984, 1986 and 1987 kharif seasons. The field experiment ( 8 x 3 RBD) was conducted at the interspaces of coconut garden under partial shade for identifying a suitable groundnut variety with high yield and shade tolerance. The pooled analysis of the data for three years revealed that the variety TG 3 was consistently superior in dry pod yield. Therefore, it was recommended for inclusion in the package of practices recommendations of the Kerala Agricultural University as a suitable variety for cultivation as intercrop in coconut garden under partially shaded conditions.Item Correlation studies in black gram under partially shaded conditions(Kerala Agricultural University, 1992) Saji T Abraham; Sreekumar, S G; Saraswathy, P; Gopinathan Nair, V; Manikantan Nair, PItem Path analysis for harvest index in black gram(Kerala Agricultural University, 1992) Saji T Abraham; Sreekumar, S G; Saraswathy, P; Gopinathan Nair, V; Manikantan Nair, PItem Variability in black gram under partially shaded conditions(Kerala Agricultural University, 1992) Saji T Abraham; Sreekumar, S G; Saraswathy, P; Gopinathan Nair, V; Manikantan Nair, PVariability in nineteen varieties of black gram was studied, under partially shaded conditions in coconut plantations. Analysis of variance for nineteen characters showed significant differences among the varieties for ten characters. Analysis of variance for chlorophyll pigments (a and b) at flowering and pod maturity revealed that there was no significant difference in the chlorophyll content among the varieties, but significant differences existed among the varieties for the chlorophyll pigments estimated at flowering and pod maturity periods. High genotypic coefficient of variation, moderate to high heritability and high genetic advance recorded for leaf area index at 50 per cent flowering and accumulation of dry matter (photosynthetic efficiency) at 50 per cent and 100 per cent flowering, number of days to blooming and number of days to the first pod harvest suggest the reliability of these characters during selection programmes for the improvement of this crop.Item Genetic divergence in bhindi (Abelmoschus esculentus [L.] moench(Kerala Agricultural University, 1994) Bindhu, K K; Saraswathy, P; Manju, PSeventy genotypes of bhiiuli were subjected to D2 analysis based on 14 economic characters in order to classify them into group constellation. The 70 genotypes were found to fall into six clusters with 57 genotypes in cluster I, four in cluster II, three in cluster III, two in cluster IV, three in cluster V arid one in cluster VI. The distribution of the genotypes into six different clusters was not according to their places of origin showing that the genotypes forming one group were geographically diverse, while those obtained from the same region were genetically different. Cluster V showed high mean values for yield and major yield attributes indicating that it is superior to the rest of the clusters. Cluster I and IV were genetically closer while cluster II and VI were wider. Selection of parents from cluster II and VI for hybridisation is likely to give heterotic hybrids.Item Seedling progeny analysis in coconut types(Kerala Agricultural University, 1995) Manju, P; Gopimony, R; Nampoothiri, K U K; Saraswathy, PThe study was undertaken to identity prepotent palms from among five coconut types vi/.., three Komadan generations. West Coast Tall and Natural Cross Dwarf based on growth rate of seedlings at the 9th month of germination. For most of the seedling characters, Komadan generations (Manju, 1992) showed significant superiority over WCT and they behaved as a distinct group with regard to total leaf area over both WCT and NCD. They were also found to be significantly superior to WCT for seedling vigour index and number of seedlings with split leaves. The three Komadan generations were on par regarding recovery ot quality seedlings and were significantly superior to WCT. Based on this character, 20 per cent of the palms in Komadan were identified to be prepotent.