Change of constituents within parts of sugar beet [Beta vulgaris] during the growing season, 2: Change of nonsugars
1989
Muratsubaki, T. (Nippon Beet Sugar Manufacture Co. Ltd., Obihiro, Hokkaido (Japan)) | Sayama, K.
We traced the change of nonsugar constituents in each part of the sugar beet plant during the growing season. The results were as follows: 1. the total nitrogen content by part was the highest for leaf blades. The content of alpha-amino nitrogen differentiated among the parts in the early growing season, but became balanced in the latter season. Nitrate nitrogen was most highly contained in petioles. Content of betaine nitrogen was on a down r/trend in early growing season, but it increased gradually in the latter season. 2. Potassium was most highly contained in petioles. While sodium being highly contained in both leaf blades and petioles. 3. Chloride ions were most highly contained in petioles. While sulfate ions being most highly contained in leaf blades. Phosphate ions were highly contained in petioles. 4. By leaf part, the total content of each nitrogen and phosphate ions was the highest for the blades, while the content of each nitrate nitrogen, potassium and chloride ions getting higher as becoming nearer to root. The content of soidum, however was almost constant. 5. Within a petiole, both nitrate nitrogen and potassium were highly contained in the parenchymas locating far from vascular bundles. While both sodium and chloride ions being highly contained in the parenchymas that were neighboring vascular bundles. 6. In a dying petiole, the total content of each nitrogen and phosphate ions was declining, while the content of each nitrate nitrogen, chloride ions, potassium and sodium was increasing
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