Effect of Heat Stress Duration on Growth, Flowering and Electrolyte Leakage in Four Cultivars of Calendula officinalis
الموضوعات : مجله گیاهان زینتی
Tayebeh Nazdar
1
(
Department of Horticultural Science and Landscape, Faculty of Agriculture, Ferdowsi University of Mashhad. Iran.
)
Ahmad Nezami
2
(
Agronomy Department, Faculty of Agriculture, Ferdowsi University of Mashhad. Iran
)
Ali Tehranifar
3
(
Professor, Department of Horticultural Science and landscape, Ferdowsi University of Mashhad, Iran
)
Hosein Nemati
4
(
Department of Horticultural Science and Landscape, Faculty of Agriculture, Ferdowsi University of Mashhad. Iran.
)
Leila Samiei
5
(
Department of Ornamental Plants, Research Center for Plant Sciences, Ferdowsi University of Mashhad. Iran
)
الکلمات المفتاحية: Morphology, High temperature, Bedding plants, Thermotolerance,
ملخص المقالة :
In the floriculture industry, the need for heat tolerant bedding plant cultivars is increasing because of the rising temperature around the world. A pot experiment was carried out to examine the impacts of four heat stress durations (0, 7, 14 and 21 days) on growth and ornamental traits to determine the relative heat tolerance of four cultivars of calendula (Calendula officinalis). Growth and development were quantified by measuring plant height, total leaf area, shoot and root fresh weight, shoot and root dry weight, time to flowering, flower number, average flower size, and flower longevity. Plant height, leaf area, and shoot and root growth at 35-42°C were significantly lower than those at normal temperatures (20-30°C). Time to flowering increased with temperature. Flower number, size and longevity were reduced by heat stress, so that among all durations, plants exposed to heat stress for 21d had the least mean. Longer heat stress reduced the plant height, leaf area, shoot and root growth, SPAD value, flower diameter and flower longevity of all cultivars., However, the range percentage reduction in growth and flowering parameters were different among cultivars. Experiment to determine the membranedamageshowed an increasein percent electrolyte leakage with exposure of plants to higher temperatures. The studied cultivars differed in their sensitivity to heat stress. The results indicated that better cell membrane stability, higher shoot and root growth, and later flowering led to greater heat tolerance in ‘Indian Prince’ compared to other cultivars.
Adams, S. R., Pearson, S. and Hadley, P. 1997. An analysis of the effects of temperature and light integral on the vegetative growth of pansy cv. Universal Violet (Viola× wittrockiana Gams.). Annals of Botany, 79(3): 219-225.
Bigras, F.J. 2000. Selection of white spruce families in the context of climate change: heat tolereance. Tree Physiology, 20: 1227-1234.
Braithwaite, L. and Drost, D. 2009. Calendula in the garden. Utah State University. Cooperative Extension, http://utah.ptfs.com/awweb/guest.jsp? smd=1&cl= all_lib & lb document id =32520.
Griffin, J.J., Ranney, T.G. and Pharr, D.M. 2004. Heat and drought influence photosynthesis, water relations, and soluble carbohydrates of two ecotypes of redbud (Cercis canadensis). Journal of the American Society for Horticultural Science, 129(4):497-502.
Gusta, L.V., O’Connor. B.J. and Bhatty, R.S. 1997. Flax (Linum usitatissimum L.) responses to chilling and heat stress on flowering and seed yield. Canadian Journal of Plant Science, 77:97-99.
Hall, A.E. 2001. Crop responses to environment. CRC Press LLC, Boca Raton, Florida.
Huang, B. and Xu, O. 2000. Root growth and nutrient element status of creeping bentgrass cultivars differing in heat tolerance as influenced by supraoptimal shoot and root temperatures. Journal of Plant Nutrition, 23: 979-990.
Jiang, Y. and Huang, B. 2001. Physiological responses to heat stress alone or in combination with drought: A comparison between tall fescue and perennial ryegrass. HortScience, 36(4): 682–686.
Kalyar, T., Rauf, S., Teixeira da Silva, J.A. and Iqbal, Z. 2013. Variation in leaf orientation and its related traits in sunflower (Helianthus annuus L.) breeding populations under high temperature. Field Crops Research, 150: 91–98.
Kertring, D.L. 1984. Temperature effects on vegetative on vegetative and reproductive development of peanut. Crop Science, 24: 877-882.
Koh, I. 2002. Acclimative response to temperature stress in higher plants: Approaches of gene engineering for temperature tolerance. Annual Reviews in Plant Biology, 53: 225-245.
Kolb, P.F. and Robberecht, R. 1996. High temperature and drought stress effects on survival of Pinus ponderosa seedlings. Tree Physiology, 16: 665–672.
Larkindale, J., Mishkind, M. and Vierling, E. 2005. Plant responses to high temperature. p. 100-144. In: M.A Jenks, P.M Hasegawa (eds.), Plant Abiotic Stress, Blackwell Publishing Ltd, Oxford, UK.
Lee, W.S., Barrett, J.E. and Nell, T.A. 1990. High temperature effects on the growth and flowering of Impatiens wallerana cultivars. Acta Horticulturae, 272:121–127.
Lee, A.M. and Erick, S.R. 2007. Modeling the effects of temperature and photosynthetic daily light integral on Growth and flowering of Salvia splendens and Tagetes patula. Journal of the American Society for Horticultural Science, 132(3):283–288.
Mader, J. 2009. Induction of acquired stress tolerance for improving landscape survivability of Petunia×hybrida. MS Thesis. Louisian State University.
Medina, C. and Cardemil, L. 1993. Prosopis chilensis is a plant highly tolerant to heat shock. Plant, Cell and Environment, 16: 305 - 310.
Natarajan, S. 2005. High temperatures stress responses of Salvia splendens and Viola x wittrockiana. Ph.D Thesis. Louisianan State University.
Natarajan, S. and Kuehny, J.S. 2008. Morphological, physiological, and anatomical characteristics associated with heat preconditioning and heat tolerance in Salvia splendens. Journal of the American Society for Horticultural Science, 133 (4): 527–534.
Niu, G., Heins, R., Cameron, A. and Carlson, W. 2001. Temperature and daily light integral influence plant quality and flower development of Campanula carpatica 'Blue Clips', 'Deep Blue Clips', and Campanula 'Birch Hybrid'. HortScience, 36 (4): 664-668.
Niu, G. and Rodriguez, D.S. 2006. Impact of drought and temperature on growth and leaf gas exchange of six bedding plants species under greenhouse conditions. HortScience, 41(6): 1408-1411.
Ortiz, C. and Cardemil, L. 2001. Heat-shock responses in two leguminous plants: A comparative study. Journal of Experimental Botany, 52: 1711-1719.
Prasad, P.V.V., Craufurd, P.Q. and Summerfield, R.J. 1999. Sensitivity of peanut to timing of heat Stress during reproductive development. Crop Science, 39: 1352-1357.
Vige, M.K.D., Kuehny, J.S., Board, J.E. and McClure, G. 2003. Effects of supra-optimal temperature on Coreopsis and Giallardia. Acta Horticulturae, 618:169-176.
Wahid, A., Gelani, S., Ashraf, M. and Foolad, M.R. 2007. Heat tolerance in plants: An overview. Environmental and Experimental Botany, 61: 199–223.
Wang, C.H. and Yeh, D.M. 2008. Heat tolerance and flowering-heat-delay sensitivity in relation to cell membrane thermostability in chrysanthemum. Journal of the American Society for Horticultural Science, 133(6): 754–759.
Warner, R.M. and Erwin, J.E. 2001.Effect of high-temperature stress on flower number per inflorescence of 11 Lycopersicon esculentum Mill. genotypes. HortScience,36:508. (Abstract).
Warner, R.M. and Erwin, J.E. 2005. Prolonged high temperature exposure and daily light integral impact growth and flowering of five herbaceous ornamental species. Journal of the American Society for Horticultural Science, 130(3): 319–325.
Warner, R.M. and Erwin, J.E. 2006. Prolonged high-temperature exposure differentially reduces growth and flowering of 12 Viola ×wittrockiana Gams. cvs. Scientia Horticulturae, 108: 295–302.
Xu, Q. and Huang, B. 2001. Morphological and physiological characteristics associated with heat tolerance in creeping bentgrass. Crop Science, 41(1): 127-133.
Yeh, D.M. and Hsu, P.Y. 2004. Heat tolerance in English ivy as measured by an electrolyte leakage technique. Journal of Horticultural Science and Biotechnology, 79: 298-302.
Yeh, D.M. and Lin, H.F. 2003. Thermostability of cell membranes as a measure of heat tolerance and relationship to flowering delay in Chrysanthemum. Journal of the American Society for Horticultural Science, 128 (5): 656 – 660.
