Effect of Potassium Chlorate on Nitrogen, Phosphorus, Potassium and Hormone Content of Longan Root

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Daranee Kiatsakun
Tragool Tunsuwan

Abstract

Effect of potassium chlorate on content of nitrogen, phosphorus, potassium and hormones of longan root 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 pots.  The data were collected for four consecutive weeks after treatments.  The result revealed that there was no flower in untreated plants.  On the other hand, the flowering was observed in the treated plants after 18 days.  The content of nitrogen, phosphorus and potassium three weeks after treatment were not different from untreated plants.  The concentration of root auxin, cytokinin and ethylene in treated plants on the second week, prior to flowering time were higher than untreated plants.  The correlation among mineral nutrients between root, leaf and shoot and the correlation between root hormones of treated were different from untreated plants.

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References

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