Variability between silver thiosulfate and 1-naphthaleneacetic acid applications in prolonging bract longevity of potted bougainvillea |
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| Institution: | 1. Institute of Agriculture and Environment, Massey University, Palmerston North 4474, New Zealand;2. The New Zealand Institute for Plant & Food Research Limited, Private Bag 11 600, Palmerston North 4442, New Zealand;1. Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, Caserta, Italy;2. Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy;3. Department of Biology, University of Naples Federico II, Naples, Italy;4. CNR—National Research Council, Institute for Sustainable Plant Protection, Florence, Italy;1. School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia;2. Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore, 54000, Pakistan;3. Department of Biology, Faculty of Science, Selcuk University, Campus/Konya, Turkey;4. Department of Pharmacy, The Islamia University of Bahawalpur, Pakistan;5. School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia;6. Department of Health Sciences, Faculty of Science, University of Mauritius, Mauritius;7. Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia;8. Tropical Medicine and Biology Multidisciplinary Platform, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia;9. Global Asia in The 21st Century (GA21) Multidisciplinary Research Platform, Monash University, Malaysia;1. Flower Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China;2. Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, China;3. Plant Breeding Institute, Faculty of Agriculture and Environment, University of Sydney, 107 Cobbitty Road, Cobbitty, NSW 2570, Australia |
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| Abstract: | Potted bougainvillea ‘Purple Flower’ and ‘Taipei Red’ in four different stages of bract development were sprayed with STS (0.1, 0.5 mM) or NAA (25, 50 ppm) and were moved to low-light indoor conditions after treatment. The experiment was conducted twice, and the results showed that 0.5 mM STS and NAA (25, 50 ppm) could significantly prolong the longevity of bracts at certain stages in both cultivars. Treatment with 0.1 mM STS, however, had no effect on bract longevity of ‘Taipei Red’ at any stage. The prolonging effect of STS was more obvious in early bract stages and decreased as the bract stage increased, whereas NAA applications at later bract stages produced better results on prolonging bract longevity. The ethylene production rates of bracts in these two cultivars were higher in early stages and gradually decreased with bract growth. We propose that this phenomenon is related to the variability between STS and NAA in prolonging bract longevity of bougainvillea. |
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