Effect of some treatments on the chemical components and viability of watermelon seeds
2011
Ali, M.F.H.
The aim of this work was to raise the viability of watermelon (citrullus lanatus) seeds (Giza l) and to reduce the time of storage experiments which takes a long time to study the changes of physiological and chemical components in the seeds. In the first experiment: -watermelon seeds were stored for two years in a store of Horticulture Research Institute Germination Percentage (GP) in these seeds at 60% the seeds were soaked for 15 minutes in glucose (10. 4M), fructose (10. 4M), disodium phosphate (10. 4M) solutions and water for 1, 3 and 5 days at 4ºC and air dried for 1, 7, 14 and 21 days. GP (Germination Percentage) of the seeds was increased when the seeds were treated by these treatments GP was increased to 81 % when the seeds were soaked in (glucosel0. 4M for 15 minutes) after drying seeds for 21 days. It's the best treatment to increase the viability of seeds and increased protein, carbohydrate content and the activities of isozymes (peroxidase and esterase) and decreased the total fats. The second experiment:. -where the seeds were treated by accelerated ageing materials at 50 ºC with 17 % moisture up to 24, 48, 72, and 96 hours. The viability of seeds was decreased when the seeds were treated by these treatments GP (Germination Percentage) was decreased to 24 % after the seeds were treated at 50 ºC with 17 % moisture up to 96 hours. A reduction in the total contents of storage components such as proteins and carbohydrates and increasing total fats and decreasing the activities of isozymes (esterase and peroxidase) under the same conditions.
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