Effect of Potassium Chlorate on Rate of Photosynthesis Carbohydrate and Nitrogen Content of Longan
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Abstract
Effect of potassium chlorate on rate of photosynthesis, carbohydrate and nitrogen content of longan were conducted on November, 2000 at the Faculty of Agriculture, Chiang Mai University. One year old propagated longans var. Dor were grown with fine sand in 12 inches diameter pot. The data were collected for four consecutive weeks after treatments. The result revealed that there were no flower in untreated plants. On the other hand, the flowering was observed in the treated plants after 18 days. The photosynthetic rate and chlorophyll content in mature leaves were not differ from control. However, the total non structural carbohydrate (TNC), reducing sugar (RS), total nitrogen (TN) and C:N ratio in shoots were significant difference. The correlation coefficient (r) between TNC, RS and TN in root, leaf and shoot were also different among treated and untreated plants.
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