Solubilization And Utilization Of Seed Reserves During The Germination Of Coconut (Cocos Nucifera L.)
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1993
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The time taken for germination differs in coconut, depending on the cultivars. In this paper, the solubilization and utilization of seed reserves are monitored during the early stages of germination in two late germinators namely, West Coast Tall(WCT) and the hybrid WCT x Chowghat Orange Dwarf (COD) and in two early germinators namely, COD and Malayan Yellow Dwarf (MYD). As germination proceeded, marked changes occurred in the seed reserves like total lipids, proteins, amino acids and carbohydrates. There was a rapid increase in the total sugars, reducing sugars and starch in the haustorium, which revealed the assimilation of sugars during the development of embryo. Similar changes were noticed in the contents of lipids and protein in both the kernel and haustorium. The role of hydrolytic enzymes like amylase, invertase, lipase, esterase and protease in the solubilization and utilization of seed reserves is also clearly brought out.
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J.Plantn.Crops 1993 Suppl. v-21 p-313-321