Growth,chlorophyll and mineral nutrient studies on phalaris arundinaceae L. in three scottish lochs |
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Authors: | Y. B. Ho |
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Affiliation: | (1) Department of Biological Sciences, The University, Dundee, DD1 4HN, Scotland;(2) Present address: Department of Botany, University of Hong Kong, Hong Kong |
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Abstract: | Growth, chlorophyll and mineral nutrients studies were made in Phalaris arundinaceae L. in three Scottish lochs of varying nutrient status from March to November in 1975. The maximum shoot height and shoot dry weight attained by the plants were approximately 160 cm and 4 g respectively. Seasonal changes in the chlorophyll levels in the Phalaris leaf were studied and two peaks were found, one in April and the other in June–July. Maximum chlorophyll level attained was 9 mg g–1 leaf dry weight. The changes in the mineral levels in the root, stem, leaf and inflorescence parts of the plants from the three lochs were also assayed throughout the growing season. A total of eight mineral elements were studied, including carbon, nitrogen, phosphorus, potassium, sodium, calcium, magnesium and iron. Variations in both the mineral concentrations and their pattern of changes during the study period among the plants from the lochs were observed and discussed. |
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Keywords: | Mineral content growth study chlorophyll content Phalaris arundinaceae Scottish lochs |
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