EFFECT OF THIDIAZURON HOLDING TREATMENTS ON DELAYING THE SENESCENCE OF DAVALLIA FERNS

N. Tatmala , S. Kaewsuksaeng , S. Kanlayanarat , M. Buanong
Effect of Thidiazuron (TDZ) treatments on delaying the senescence of rabbit’s foot ferns (Davallia spp.) was investigated by holding fern stems in 0 (control), 5 and 10 µM TDZ, respectively, in an observation room (21+ 2°C, 70-80% RH, cool-white fluorescence lights for 12 h) throughout experimental period. The results showed that 10 µM TDZ holding treatment significantly delayed the decrease of fresh weight, water uptake and chlorophyll a and b contents, as compared to the control. However, the leaves treated by TDZ exhibited a significantly higher leakage of electrolytes than the control leaves. In addition, holding treatment of 10 µM TDZ significantly prolonged the vase life to 7.3 d while the control stems had the shortest vase life of 5.8 d. In conclusion, the senescence of rabbit’s foot ferns was significantly delayed by the holding treatment of 10 µM TDZ.
Tatmala , N., Kaewsuksaeng , S., Kanlayanarat , S. and Buanong, M. (2012). EFFECT OF THIDIAZURON HOLDING TREATMENTS ON DELAYING THE SENESCENCE OF DAVALLIA FERNS . Acta Hortic. 937, 463-466
DOI: 10.17660/ActaHortic.2012.937.56
https://doi.org/10.17660/ActaHortic.2012.937.56
rabbit's foot ferns, senescence
English

Acta Horticulturae