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Item Aswathy, a new ginger variety from Kerala Agricultural University from green ginger(2014) Shylaja, M.R; Nybe, E.V; Nazeem, P.A; Sally K, Mathew; Krishnan, S; Resmi, PaulItem Comparison of two methods for the study of permanent manurial trials(Kerala Agricultural University, 1982) Krishnan, S; Surendran, P U; Gangadhara Menon, P KA rigorous justification for the comparison of treatments by the stability approach initated by Finlay and Wilkinson (1963) has been attempted. The data on Jaya variety of rice were analysed both by the method of stability co-efficients as also by the method of analysis of groups of experiments. The results obtained by the above two methods revealed that they are equalent.Item Estimation of distribution of cumulative rainfall for a specific period within a Njattuvela(Kerala Agricultural University, 1993) Krishnan, S; Narayanikutty, UA stochastic model for determination of time distribution of cumulative rainfall for a specific period within a njattuvela was worked out by making use of the daily rainfall data collected from the Regional Agricultural Research Station, Kerala Agricultural University, Kumarakom. A day having a minimum of 3 mm of rainfall was regarded as a wet day. The daily rainfall depth within a njattuvela was characterised using an exponential distribution. Further the first and second order Markov chain models were fitted to the data. Thechi-square test for adequacy of f i t revealed that the first order was the best fit. Using the first and second order Markov chain probabilities, the cumulative rainfall depth of at least a reasonable amount was worked out. The study thus brought out that the significance of stochastic models for characterisation of time, distribution of rainfall depth.Item Productivity of cashew as influenced by chlorophyll and leaf nitrogen content(Kerala Agricultural University, 1994) Latha, A; John, P S; Mercy George; Krishnan, SItem Estimation of leaf area in Garcinia Cambogia (Kodampuli) through linear measurements(Kerala Agricultural University, 1996) Lila Mathew; Sarah T George; Krishnan, SItem Combining ability analysis in cowpea (Vigna unguiculata [L| walp)(Kerala Agricultural University, 1998) Sobha, P P; Abdul Vahab, M; Krishnan, SCombining ability was studied in a 10 x 10 diallel cross in cowpea for nine important characters. The variance due to general combining ability and specific combining ability showed both additive and non-additive gene action for plant height, primary branches, days to flowering, pod length, pod weight, pods per plant, seeds per pod, 100 seed weight and yield per plant. Among ten parental lines, Arka Garima, VU-18, Selection 2-1, Section 263, Pusa Komal and Kanakamoni were good general combiners for most of the yield components. The hybrids VU-18 x Arka Garima and Selection 2-1 x VS 389 possessed high specific combining ability effects for yield per plant.Item Genetic variability in Abelmoschus caillei L.(Kerala Agricultural University, 1999) Reena Susan Chacko; Suresh Babu, K V; Rajan, S; Krishnan, SStudios on parameters of variability, correlation and path coefficient analysis of fruit yield in Abelmoschus caillei L- revealed that characters such as number of branches per plant, number of nodes per plant, plant height and fruit length had maximum coefficient of variation. Higher values of heritahility anil genetic advance were simultaneously estimated for fruit yield per plant and fruits per plant. Yield per plant had hiph positive significant correlation with fruits per plant, fruit length, fruit weight, plant height and number of intemodes on main stem. Path analysis revealed positive direct effect on fruit yield per plant through fruits per plant followed by plant height,