Browsing by Author "Satheesan, K.V."
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Item Certain leaf anatomical characteristics of two coconut cultivars and hybrids(1980-06) Ramadasan, A.; Satheesan, K.V.Item Certain leaf anatomical characteristics of two coconut cultivars and hybrids(2007-02-08) Ramadasan, A.; Satheesan, K.V.Item Changes in carbohydrate levels and starch/sugar ratio in three turmeric (Curcuma domestica Val.) cultivars grown in monoculture and as an intercrop in coconut garden(2007-02-08) Satheesan, K.V.; Ramadasan, A.Seasonal changes in the carbohydrate fractions like starch and total sugars as well as starch/sugar ratio in three turmeric cultivars viz., Cls. No. 24 (C1), CU. 328 Sugandham (C2) and Duggirala (C3) grown in monoculture and as an intercrop in coconut garden were determined. Cultivar Cls. No. 24 showed higher build up of starch in leaves as well as rhizomes when grown as a pure crop than as an intercrop, while for the cultivars Cll. 328 Sugandham and Duggirala this difference between the two cropping systems was not apparent. The stage of maximum rhizome growth rate coincided with a reduction in the starch/sugar ratio in leaves, the reduction being more pronounced in cultivar Cls. No. 24 than in cultivars Cll 328 Sugandham and Duggirala. Such a marked reduction in the starch/sugar ratio in leaves recorded by the cultivar Cls. No. 24 indicated that during rhizome bulking period, this cultivar was more efficient in the transloca-tion of photosynthates than the other two cultivars.Item Curcumin and essential oil contents of three turmeric (Curcuma domestica Val.) cultivars grown in monoculture and as intercrop in coconut garden(2007-02-08) Satheesan, K.V.; Ramadasan, A.The concentration and accumulation of curcumin and essential oil in the rhizomes of three turmeric cultivars grown in monoculture and as intercrop in coconut garden were determined, The maximum concentration of both curcumin and essential oil attained prior to the maturity of the rhizome. The cultivars showed differential response towards the cropping systems in their curcumin and essential oil contents in the rhizome. The change in the accumulation as well as concentration of essential oil was different from those of curcumin as influenced by the cropping systems.Item Curcumin and essential oil contents of three turmeric (Curcuma domestica Val.) cultivars grown in monoculture and as intercrop in coconut garden(1987-06) Satheesan, K.V.; Ramadasan, A.The concentration and accumulation of curcumin and essential oil in the rhizomes of three turmeric cultivars grown in monoculture and as intercrop in coconut garden were determined. The maximum concentration of both curcumin and essential oil attained prior to the maturity of the rhizome. The cultivars showed differential response towards :the cropping systems in their curcumin and essential oil contents in the rhizome. The change in the accumulation as well as concentration of essential oil was different from those of curcumin as influenced by the cropping systems.Item Effect of growth retardant CCC on growth and productivity of turmeric under monoculture and in association with coconut(2007-02-08) Satheesan, K.V.; Ramadasan, A.Item Estimation of leaf area in turmeric (Curcuma longa L.) under two agroecological conditions(2007-02) Satheesan, K.V.; George, M.V.; Vijayakumar, K.; Ramadasan, A.The total leaf area (TLA) at different stages of growth of tillers or clumps of turmeric (Curcuma longa) varieties raised under two agroecological conditions viz., in the open as a pure crop and in association with coconut, can be estimated using the regression equation TLA = b1 nB + b2 L. The total leaf area of the tiller or clump can be computed by taking the linear measurements CL and B) of only one leaf i.e., median leaf of the tiller or those of the median leaf of the tiller having maximum number of leaves, respectively, and counting the total number of leaves (n) in the respective tiller or clump. Under both the ecological conditions studied and between the same, the regression coefficients were not homogenous over various stages of growth and for different varieties. Hence common mathematical formulae were not attempted to, with regard to varieties, age of the plant or ecological conditions.Item Leaf area and shoot dry weight in coconut seedling selection(2007-02) Ramadasan, A.; Satheesan, K.V.; Balakrishnan, R.Path-coefficient analysis was used to assess the contribution of various seedling characters that are presently employed for selection of coconut seedlings from 1-year-old nursery. The girth at collar and the leaf area, contributed mostly to the dry weight of shoot. The number of leaves and the height of seedlings did not significantly contribute to vigour. A simple multiple linear regression equation was worked out for estimating the dry weight of shoot non-destructively. The girth at collar and the leaf area were found to be the most important characters to be considered in selection and breeding.Item A Rapid Method for Estimation of Leaf Area of One Year Old Seedlings of Tall Variety of Coconut Palms(1983) Satheesan, K.V.; Narasimhayya, G.; Ramadasan, A.The area of individual leaf (P) of any position in one year old West Coast Tall (WCT) coconut seedlings can be estimated using a single linear function, P= 27.39+ 0.6 X in sq.cm. where X is the product of length and width of lamina, with a reliability of 91 per cent. The total functional leaf area (Y) can be estimated using the function Log (Y) = -0.434 + 1.042 Log (N) + 1.060 (X) with a reliability of 99 per cent and where N is the number of leaves, X is the mean product of length and width of all leaves, or using the function Log (Y) = 0.819—0.41 Log (N) + 0.915 Log (X3) where X3 is the product of length and width of the third leaf and N the number of leaves, with a reliability of 97 per cent.Item A Rapid Method for Estimation of Leaf Area of One Year Old Seedlings of Tall Variety of Coconut Palms(1983-06) Satheesan, K.V.; Narasimhayya, G.; Ramadasan, A.The area of individual leaf (P) of any position in one year old West Coast Tall (WCT) coconut seedlings can be estimated using a single linear function, P= 27.39+ 0.6 X in sq.cm. where X is the product of length and width of lamina, with a reliability of 91 per cent. The total functional leaf area (Y) can be estimated using the function Log (Y) = -0.434 + 1.042 Log (N) + 1.060 (X) with a reliability of 99 per cent and where N is the number of leaves, X is the mean product of length and width of all leaves, or using the function Log (Y) = 0.819—0.41 Log (N) + 0.915 Log (X3) where X3 is the product of length and width of the third leaf and N the number of leaves, with a reliability of 97 per cent.Item Relative Assimilation Rate (RAR) in Coconut Palms(2007) Ramadasan, A.; Chacko Mathew; Jacob Mathew; Satheesan, K.V.Item Relative Assimilation Rate (RAR) in Coconut Palms(1984) Ramadasan, A.; Chacko Mathew; Jacob Mathew; Satheesan, K.V.Item Short Scientific Notes: Certain Leaf Anatomical Characteristics of Two Coconut Cultivars and Hybrids(1980-06) Ramadasan, A.; Satheesan, K.V.