Biochemical Basis of Heterosis in Sorghum: Changes in Chlorophylls and Ascorbic Acid Turnover during Seedling Growth |
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| Authors: | BHATT K C; VAISHNAV P P; SINGH Y D; CHINOY J J |
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| Institution: | Department of Biosciences, Saurashtra University Rajkot 360 005, India |
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| Abstract: | Shoots of three F1 hybrids of Sorghum bicolor (L.) Moench withtheir inbred parents were analyzed for chlorophyll a and chlorophyllb contents as well as for ascorbic acid turnover during theearly stages of seedling growth. In all the hybrids both chlorophylland ascorbic acid turnover showed better-parental and/or mid-parentalheterosis. Since ascorbate participates in photosynthesis andnitrate reduction, it is suggested that a well co-ordinatedsystem incorporating photosynthetic efficiency and nitrate assimilationmay be associated with the manifestation of hybrid vigour insorghum. Sorghum bicolor (L.) Moench, hybrid vigour, chlorophyll, ascorbic acid, nitrate reductases |
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