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Asgari, H.R., Cornelis, W., Van Damme, P.. (1391). Wheat (Triticum aestivum L.) Growth and Yield as Influenced by Flooding and Salinity Stresses in Northern Iran. , 17(1), 99-104. doi: 10.22059/jdesert.2012.32015
H.R. Asgari; W. Cornelis; P. Van Damme. "Wheat (Triticum aestivum L.) Growth and Yield as Influenced by Flooding and Salinity Stresses in Northern Iran". , 17, 1, 1391, 99-104. doi: 10.22059/jdesert.2012.32015
Asgari, H.R., Cornelis, W., Van Damme, P.. (1391). 'Wheat (Triticum aestivum L.) Growth and Yield as Influenced by Flooding and Salinity Stresses in Northern Iran', , 17(1), pp. 99-104. doi: 10.22059/jdesert.2012.32015
Asgari, H.R., Cornelis, W., Van Damme, P.. Wheat (Triticum aestivum L.) Growth and Yield as Influenced by Flooding and Salinity Stresses in Northern Iran. , 1391; 17(1): 99-104. doi: 10.22059/jdesert.2012.32015

Wheat (Triticum aestivum L.) Growth and Yield as Influenced by Flooding and Salinity Stresses in Northern Iran

Desert
مقاله 11، دوره 17، شماره 1، شهریور 2012، صفحه 99-104    اصل مقاله (211.98 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jdesert.2012.32015
نویسندگان
H.R. Asgari* 1؛ W. Cornelis2؛ P. Van Damme3
1Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
2Department of Soil Management, Ghent University, Ghent, Belgium
3Department of Plant Production, Ghent University, Ghent, Belgium
چکیده
Salinity and flooding are as two very important factors of soil degradation. They often occur together and can
cause severe damage to plants. However, plant response to environmental stresses may vary with growth stage at
which exposure occurs. A pot study was conducted in 2005-2006 in northern Aq Qala (northern Iran) to study
combine effects of waterlogging and soil salinity at different growth stages on grain yield and some yield components
of two Iranian spring wheat genotypes, i.e. Kouhdasht and Tajan. Two salinity treatments were applied, viz. a nonsaline
(ECe = 3 dS m-1) and saline soil (ECe= 10 dS m-1). The six waterlogging treatments within each set consisted
of: control (no waterlogging), and waterlogging applied at tillering (T); stem elongation (SE); booting (B); grain
filling (GF); and two spells of waterlogging, i.e. at tillering and grain filling stages (T+GF). In this experiment,
waterlogging was imposed by keeping pots in hypoxia conditions by adding water daily (during up to two weeks) to
110% of available water holding capacity. Results reveal that highest reduction in grain yield; thousand grain weight
(TGW) and harvest index (HI) were observed through waterlogging at T+GF for both wheat genotypes. Nonsignificant
changes in grain yield, TGW and HI were observed via waterlogging at B as compared to control.
Kouhdasht showed better performance than Tajan under saline and saline × waterlogged conditions
کلیدواژه‌ها
Abiotic stresses؛ Plant ecophysiology؛ tolerance؛ Stress physiology؛ Semi-arid agriculture
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