Abstract
Shades of different light intensities (29%, 43%, 54%, 60% or 68%) along with control (no shade) were studied to observe their effects on the flowering time and plant quality. A hyperbolic relationship was observed between different light intensities under shade, and time to flowering. The total number of flower buds showed a curvilinear relationship with light intensities. Growth parameters related to the plant characteristics such as plant height, leaf area and plant fresh weight were improved under shading treatments at the expense of flowering time and number of flower buds. However, both linear and polynomial models applied assumed that cultivar Chimes White was equally sensitive to light intensity throughout development.
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References
Adams, S.R., Pearson, S., Hadley, P., 1997. The effects of temperature, photoperiod and light integral on the time to flowering of pansy cv. Universal Violet (Violax witrockiana Gams).Annals of Botany,80: 107–112.
Adams, S.R., Hadley, P., Pearson, S., 1998. The effects of temperature, photoperiod, and photosynthetic photon flux on the time to flowering of petunia ‘Express Blush Pink’.Journal of the American Society for Horticultural Science,123: 577–580.
Ballaré, C.L., 1999. Keeping up with the neighbours: phytochrome sensing and other signalling mechanisms.Trends in Plant Science,4: 97–102.
Cremer, F., Havelange, A., Saedler, H., Huijser, P., 1998. Environmental control of flowering time inAntirrhinum majus.Physiologia Plantarum,104: 345–350.
Ellis, R.H., Hadley, P., Roberts, E.H., Summerfield, R.J. 1990. Quantitative Relations between Temperature and Crop Development and Growth.In: Jackson MT, Ford-Lloyd BV, Parry ML, eds. Climatic Change and Plant Genetic Resources. Belhaven Press, London, p. 85–115.
Evans, G.C., 1972. The Quantitative Analysis of Growth. Blackwell, London.
Fitter, A.H., Hay, R.K.M., 1987. Environmental Physiology of Plants, 2nd Edition. Academic Press, London.
Flint, H.L., 1960. Relative effects of light duration and intensity on growth and flowering of winter snapdragon (Antirrhinum majus L.).Proceeding of the American Society for Horticultural Science,75: 769–773.
Garner, W.W., Allard, H.A., 1920. Effect of the relative length of day and night and other factors of the environment on growth and reproduction in plants.Journal of Agricultural Research,18: 553–606.
Hadley, P., Roberts, E.H., Summerfield, R.J., Minchin, F.R., 1984. Effects of temperature and photoperiod on flowering in soya bean [Glycine max (L) Merrill]-a quantitative model.Annals of Botany,53: 669–681.
Hedley, C.L., 1974. Response to light intensity and daylength of two contrasting flower varieties ofAntirrhinum majus L.Journal of Horticultural Science,49: 105–112.
Kamoutsis, A.P., Chronopoulou-Sereli, A.G., Paspatis, E.A., 1999. Paclobutrazol affects growth and flower bud production in gardenia under different light regimes.HortScience,34: 674–675.
Munir, M., 2003. A Study on the Effects of Environmental Factors Affecting the Phases of Flower Development inAntirrhinum majus L. Ph.D. Thesis. Department of Horticulture and Landscape, School of Plant Sciences. The University of Reading, U.K.
Napier, D.R., Jacobs, G., 1989. Growth regulators and shading reduce flowering ofLeucospernum cv. Red sunset.HortScience,24: 966–968.
Thomas, B., Vince-Prue, D., 1997. Photoperiodism in Plants. Academic Press, London.
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Munir, M., Jamil, M., Baloch, Jud. et al. Impact of light intensity on flowering time and plant quality ofAntirrhinum majus L. cultivar Chimes White. J. Zheijang Univ.-Sci. 5, 400–405 (2004). https://doi.org/10.1631/jzus.2004.0400
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DOI: https://doi.org/10.1631/jzus.2004.0400