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The Study of temperature depression and its association with grain yield in six wheat cultivars under heat stress conditions and salicylic acid application | ||
| Iran Agricultural Research | ||
| مقاله 10، دوره 39، شماره 1، 2020، صفحه 99-108 اصل مقاله (741.46 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22099/iar.2020.31975.1318 | ||
| نویسندگان | ||
| Abbas Bonari1؛ Mohsen Edalat* 1؛ Hossein Ghadiri1؛ Seyed Abdolreza Kazemeini1؛ Mohammad Modarresi2 | ||
| 1Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, I. R. Iran | ||
| 2Department of Crop Production and Plant Breeding, School of Agriculture, Persian Gulf University, Bushehr, I. R. Iran | ||
| چکیده | ||
| In order to evaluate canopy and organs temperature depression (TD) under heat stress conditions and the effects of plant morphology on organs temperature depression and their association with grain yield, two field experiments were conducted using six wheat cultivars (Behrang, Chamran, Kauz, Koohdasht, Karim and Montana) planted on three dates (early, optimum, late) in 2014-2015 and 2015 -2016 cropping seasons in Dashtestan, Bushehr, Iran. In addition, three concentrations of salicylic acid (0, 0.5 and 1 mM) were applied to alleviate the effects of heat stress. Canopy and organs (flag leaf, peduncle and spike) temperature were measured by a hand-held infra-red thermometer (IRT). Also, some morphological traits in addition to yield components were measured. Results showed that the effects of cultivars and heat conditions were significant for most of the studied traits but salicylic acid application showed no significant effects. Under late sowing date, canopy and organs temperature depression were significantly higher than those at early and optimum sowing dates. No significant differences were found between early and optimum sowing dates for all temperature depressions. Among cultivars, Behrang had higher canopy temperature reduction (CTD), flag leaf temperature depression (FLTD) and peduncle temperature depression (PTD). Spike temperature depression (STD) was higher in Chamran and Kauz cultivars. Among plant organs, peduncle had higher temperature depression followed by flag leaf and spike. Canopy and organs temperature depression had positive correlation with stomatal conductance and grain yield. This research suggests that temperature depression can be used as an important criterion for the selection of stable genotypes under late sowing conditions. This is very helpful to improve wheat productivity under terminal heat stress resulting from late sowing conditions. | ||
| کلیدواژهها | ||
| Flag leaf؛ High temperature؛ Peduncle؛ Spike؛ Yield | ||
| مراجع | ||
|
Acevedo, A. (1991). Effects of heat stress on wheat and possible selection tools for use in breeding for tolerance. In Sunders, D. A. (Ed,). Wheat for the nontraditional warm areas (pp. 401-421). Mexico City: CIMMYT
Amani, I., Fischer, R. A., & Reynolds, M. P. (1996). Canopy temperature depression association with yield of irrigated spring wheat cultivars in hot climate. Journal of Agronomy and Crop Science, 176, 119-129.
Ayeneh, A., Van-Ginkel, M., Reynolds, M. P., & Ammar, K. (2002). Comparison of leaf, spike, peduncle and canopy temperature depression in wheat under heat stress. Field Crops Research, 79, 173-184.
Balota, M., Payne, W. A., Evett, S. R., & Lazar, M. D. (2007). Canopy temperature depression sampling to assess grain yield variation and genotypic differentiation in winter wheat. Crop Science, 47, 1518-1529.
Balota, M., Peters, T. R., Payne, W. A., & Evett, S. R. (2008). Morphological and physiological traits related with canopy temperature depression in three-closely related wheat lines. Crop Science. 48, 1897-1910.
Bilge, B., Yildirim, M., Barutcular, C., & Genc, I. (2008). Effect of canopy temperature depression on grain yield and yield components in bread and durum wheat. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 36, 34-37.
Blum, A. (1986). The effect of heat stress on wheat leaf and ear photosynthesis. Journal of Experimental Botany. 37(174), 111-118.
Blum, A. (1988). Plant breeding for stress environments. Boca Raton, Florida: CRC press.
Chowdhury, S. I., & Wardlaw, I. F. (1978). Effect of temperature on kernel development in cereals. Australian Journal of Agricultural Research, 29, 205-223.
EPAA. (2011). Student’s guide to global climate change. Retrieved from:www.epa.gov.
Hall, A. E. (2001). Crop responses to environment. Boca Raton, Florida: CRC Press.
Hassan, I. A. (2006). Effects of water stress and high temperature on gas exchange and chlorophyll fluorescence in Triticum aestivum L. Photosynthetica, 44, 312-315.
Hatfield, J.L., Reginato R.J., & Idso S. B., (1984). Evaluation of canopy temperature–evapotranspiration models over various crops. Agricultural and Forest Meteorology 32, 41–53.
Hays, D. B., Mason, J. H., Do, R. E., Morgan, G., & Finlayson,S. A. (2007). Heat stress induced ethylene production in developing wheat grains induces kernel abortion and increased maturation in a susceptible cultivar. Plant Science, 172,1113-1123.
Farooq, M., Bramly, H., Palta, J .A., & Siddique K, H. M. (2011). Heat Stress in wheat during reproductive and grain- filling phases. Critical Reviews in Plant Sciences, 30, 1-17.
. Farooq, M., Wahid, A., Kobayashi, N., Fujita, D., & Basra, S. M. A. (2009). Plant drought stress: Effects, mechanisms and management. Agronomy Sustainable Development, 29,185-212.
Fischer, R.A., & Maurer, R. (1978). Drought resistance in spring wheat cultivars. I. Grain yield responses. Australian Journal of Agricultural Research, 29, 897-912.
Fischer, R. A., Rees, D., Sayre, K. D., Lu, Z. M., Condon, A. G., & Larque, S. A. (1998). Wheat yield progress associated with higher stomatal conductance and photosynthetic rate and cooler canopies. Crop Science, 38, 1467-1475.
Gautam, A., Sai Prasad, S. V., & Jajoo, A. (2013). Identification of selection parameters for grain yield and its components in durum wheat under terminal heat stress in late sown conditions to combat climate changes. Progress Research, 8, 55-59.
Munjal, R., & Rana.,R. K.(2003). Evaluation of physiological traits in wheat (Triticum aestivum L.) for terminal high temperature tolerance. Proceedings of the Tenth International Wheat Genetics Symposium, Poestum, Italy, Vol. 2, Sec. 3, Classical and Molecular Breeding, 804-805
.Reynolds, M. P., Balota, M., Delgado, M. I. B., Amani, I., & Fischer, R. A. (1994). Physiological and morphological traits associated with spring wheat yield under hot, irrigated conditions. Australian Journal of Plant Physiology, 21, 717-730.
.Smith,G. R. C., & Barrs, H. D., Steiner, L. (1986). Alternative models for predicting the foliage-air temperature difference of well irrigated wheat under variable meteorological conditions. Irrigation Science, 7, 225-236.
Stone, P. J., & Nicolas, M. E. (1994). Wheat cultivars vary widely in their responses of grain yield and quality to short periods of post-anthesis heat stress. Australian Journal of Plant Physiology, 21, 887-900.
Zahedi, M., Jenner, C. F. (2003). Analysis of effects in wheat of high temperature on grain filling attributes estimated from mathematical models of grain filling. Journal of Agricultural Science. 141, 203-212. | ||
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