EFFECTS OF WATER STRESS AND SELECTED PLANT GROWTH RETARDANTS ON GROWTH AND FLOWERING OF 'RASPBERRY ICE' BOUGAINVILLEA (BOUGAINVILLEA SPECTABILIS)

S. Ma , M. Gu
Bougainvillea (Bougainvillea spectabilis) is a very popular evergreen landscape plant in tropical and subtropical areas and its vigorous growth habit requires a lot of pruning when bougainvillea is used as a potted plant. Water stress and some plant growth retardants (PGR) can be effective in controlling bougainvillea growth and enhancing flowering, but there is little research on the effective rates of daminozide, chlormequat, and water stress application to promote flowering and control growth of bougainvillea. The objective of this study was to investigate the effect of daminozide, chlormequat, and water stress on growth and flowering in ‘Raspberry Ice’ bougainvillea as a potted plant. Experiments were conducted at Mississippi State University Dorman Greenhouse in the summer of 2009 by examining water stress, and three rates of PGRs (daminozide or chlormequat alone, mix of daminozide/chlormequat). All treatments had a higher percentage of flowering pots compared to the control and daminozide produced the most flowers. Water stress controlled both plant height and width. Thus, water stress, daminozide, and chlormequat have potential as treatments for producing ‘Raspberry Ice’ bougainvillea as a potted plant.
Ma , S. and Gu, M. (2012). EFFECTS OF WATER STRESS AND SELECTED PLANT GROWTH RETARDANTS ON GROWTH AND FLOWERING OF 'RASPBERRY ICE' BOUGAINVILLEA (BOUGAINVILLEA SPECTABILIS). Acta Hortic. 937, 237-242
DOI: 10.17660/ActaHortic.2012.937.29
https://doi.org/10.17660/ActaHortic.2012.937.29
daminozide, chlormequat, Dazide, Citadel
English

Acta Horticulturae