Effect of Thidiazuron Holding Treatments on Delaying the Senescence of Davallia Ferns

Tatmala, Nopparat; Kaewsuksaeng, Samak; Kanlayanarat, S.; Buanong, M.

doi:10.17660/actahortic.2012.937.56

Cited by 2 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our results showed that pulsing treatments with CKs gave better results than the control in preventing leaf yellowing and extended the vase life of D. solida leaves, but TDZ significantly maintained the content of total Chl, which is probably caused mainly by its greater inhibiting of MG activity in the leaves when compared with BA. This finding is supported by the previous study by Tatmala et al [5], who reported that holding 10 µM TDZ significantly extended the vase life of cut D. solida leaves longer than the control. TDZ increased the level of Chl in five cultivars of Pelargonium zonale hybrid cutting, while the level of Chl declined in untreated controls [65].…”

Section: Discussionsupporting

confidence: 89%

“…'Tango', Freesia, Ornithogalum and Euphorbia fulgens [44]. Tamala et al [5] reported that holding treatment with TDZ at a concentration of 10 μM significantly prolonged the vase life of cut leaves of D. solida by 1.5 days longer than the control. However, pulsing treatment with TDZ has not been tested on the leaves of D. solida.…”

Section: Plant Materials and Treatmentsmentioning

confidence: 99%

“…Ferns are used as florists' greens and are grown worldwide, including in Thailand, because of their ready availability, high consumer acceptance, low cost and good longevity [2,3]. D. solida is one of the most commercial ferns sold in flower markets, due to the beautiful, delicate and complex symmetry of its glossy green foliage, but its vase life is rapidly short within seven days resulting from leaf yellowing, and/or desiccation (wilting) [4,5]. Kowwilaisaeng and Teerarak [6] reported that the senescence of D. solida ferns was related to the increase in malondialdehyde (MDA) and H 2 O 2 content, and the decrease of fresh weight, Chl and carotenoid contents.…”

Section: Introductionmentioning

confidence: 99%

“…Treatment with TDZ has also been reported to retard leaf senescence in cut flowers of Chrysanthemum, Alstroemeria and Tulipa [39][40][41], to reduce flower abscission and the senescence in cut inflorescences of Phlox paniculata and Lupinus densiflorus [42,43], and to delay leaf yellowing in pot plants of Pelargonium hortorum 'Tango', Freesia, Ornithogalum and Euphorbia fulgens [44]. Tamala et al [5] reported that holding treatment with TDZ at a concentration of 10 µM significantly prolonged the vase life of cut leaves of D. solida by 1.5 days longer than the control. However, pulsing treatment with TDZ has not been tested on the leaves of D. solida.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Application of Cytokinin under Modified Atmosphere (MA) Delays Yellowing and Prolongs the Vase Life of Davallia solida (G. Forst.) Sw. Leaves

et al. 2023

View full text Add to dashboard Cite

Cut leaves of Davallia solida are widely used in bouquet greenery. However, the leaves wilt and yellow after seven days. Postharvest applications of exogenous cytokinins (CKs), a plant growth regulator (PGR), preventing senescence in many green leafy plants, were studied by pulsing cut D. solida leaves with 6-benzylamiopurine (BA) at a concentration of 100 ppm, or thidiazuron (TDZ) at a concentration of 10 μM for 24 h, compared with distilled water as a control, and then placing the ferns in a controlled room (21 + 2 °C, 70–80% relative humidity (RH), under cool-white fluorescent lights for 12 h/d). Pulsing with BA and TDZ delayed leaf yellowing while preserving chlorophyll (Chl) content. This was due to reduced Chl-degrading enzyme activities on day 8 of the vase life of the leaves, resulting in longer display life of 11.1 and 11.5 days, respectively. TDZ delayed Chl breakdown on day 8 of the vase life of leaves more than was the case for BA. Subsequently, leaves were pulsed in 10 μM TDZ, or distilled water for 24 h, and then 10 leaves from each treatment were packaged in a 25 × 30 cm, 25-μm thickness BOPP bag. All the packages were stored at 10 °C in 10 h/d light for one, two and three weeks, then unpacked and placed in distilled water. Pulsing with TDZ before one-week storage delayed leaf yellowing, maintained Chl content and extended their vase life to 9.6 days compared with one-, two-, and three-week control leaves, which had a vase life of 6.2, 5.8, and 3.6 days, respectively. After one week, the relative fresh weight of the leaves and water uptake did not alter between the control and TDZ groups. The activities of Chl degradation enzymes in the leaves of D. solida pulsed with TDZ prior to storage were significantly suppressed, related to higher Chl content and a lower percentage of leaf yellowing than the control, resulting in a longer vase life of 9.0 days, while the control lasted 7.0 days. A 10 µM TDZ pulsing treatment significantly prevented the yellowing of D. solida fronds during the vase period or storage period, and one-week storage under MA with light conditions is recommended for retaining postharvest quality after storage.

show abstract

Section: Discussionsupporting

confidence: 89%

Section: Plant Materials and Treatmentsmentioning

confidence: 99%