Experimental Studies on Plant Metabolism |
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Authors: | M. E. YOUNIS H. A. FODA A. S. EL-GHOBASHY |
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Affiliation: | Department of Botany, Faculty of Science, A'in Shams University, Abbassia, Cairo, U.A.R. |
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Abstract: | Treatment of Ricinus communis seeds with GA accelerated the production of reducing sugars and increased the total carbohydrate content. The effect increased progressively with increasing concentration of GA. — GA treatment also induced an earlier appearance of starch which was shown to be completely absent at the early stages of germination. Furthermore, GA accelerated the conversion of oils into carbohydrates. — Analysis of germinating seeds for their nitrogen content showed that whenever an increase in soluble-N due to GA treatment was detected, there was a decrease in protein-N. Breakdown of protein and formation of soluble-N increased progressively with increase in GA concentration. — GA induced variable changes in the length of the radicles and the hypocotyls, the dry weight and the water content of germinating seeds. |
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