Changes in ethylene and total nonstructural carbohydrate contents in stem apex prior to flowering of longan cv. Dor
2001
Wanthana Thonglem(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Department of Horticulture) | Tanachai Pankasemsuk(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Department of Horticulture)
Study was made on chages in ethylene and total nonstructural carbohydrate (TNC) contents in stem apexes prior to flowering of longan cv. Dor. It revealed that changes in ethylene concentration in the intercellular space of longan during 8th, 6th and 4th weeks before flowering did not show any significant difference at alpha=0.05 percent. However, ethylene concentrations tended firstly to reduce and then increased dramatically in the 2nd week before flowering. The results showed that ethylene should have effects on longan flowering. The TNC were nearly constant between 8th and 6th weeks before flowering, but increased in the 4th week before flowering, after that decreased in the 2nd week before flowering. It inferred that TNC content should have effects on longan flowering.
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