2. Institutional Publications
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Item Effect of N, P and K on the growth of Costus speciosus (Koening) Smith(Kerala Agricultural University, 1987) Sudhadevi, P K; Mohanakumaran, NA field trial was conducted to find out the role of major nutrients on different growth characters of Costus speciosus and the important characters which had a bearing on diosgenin yield were identified. The results showed that N application increased the growth of plants in terms of height, length and breadth of leaves, area per leaf and total leaf area per plant. P had a depressing effect, especially on the number of leaves and area per leaf. The beneficial effect of K was only marginal, as compared to that of N. Application of N increased the yield of rhizomes. The diosgenin content of the rhizomes was found to be significantly influenced by N, P and K application while the yield of diosgenin was significantly influenced by different levels of N and K. Of the growth characters studied, the total leaf area and plant height were found to be significantly correlated with diosgenin yield.Item Estimation of leaf area in costus speciosus using linear measurements(Kerala Agricultural University, 1983) Prabhakaran, P V; Sudha Devi, P KItem In vitro screening of some medicinal plant extracts against Phytophthora capsici, incitant of foot rot of black pepper (Piper Nigrum L.)(Kerala Agricultural University, 1996) Vimi Louis; Balakrishnan, S; James MathewItem Chlorophyll content as an index for selection in Rauwolfia spp.(Kerala Agricultural University, 1996) Narayanan, A K; Luckins C Babu; Namboodiri, K M N; Achamma Oommen; Augustine, AItem Cyclea peltata - a new host of phytophthora palmivora (butler) butler(Kerala Agricultural University, 1996) Estelitta, S; Sukumara Varma, A; Vilasini, T N; Vimi Louis; Raji, P