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KMID : 0903619940350030265
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Journal of the Korean Society for Horticultural Science
1994 Volume.35 No. 3 p.265 ~ p.269
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Changes in Carbohydrates and Nitrogen Compounds during Development of Rhododendron indicum Sweet
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Abstract
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This study was conducted to determine the changes in carbohydrates and nitrogen compounds during development of Rhododendron indicum. Non-reducing and reducing sugar contents decreased sharply during the expansion of new shoots. The contents of amino acids decreased sharply and starch and soluble protein decreased, too. The contents of sugar were relatively lower in short-day treated plants than log-day treated plants while starch contents were higher in short-day treated plants. Amino acid contents were relatively lower in short-day treated plants than long-day treated plants. But soluble protein contents were higher in short-day treated plants. The contents of total nitrogen were relatively constant throughout the experiment. After 4 weeks from light treatment, the contents of non-reducing sugar and amino acid increased in long-day treatment. It is suggested that the photosynthetic capacity of the leaves in long-day treated plants were getting higher according to their growth.
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