Effect of salicylic acid on growth and yield of wheat (Triticum aestivum l) under drought condition | ||
| Journal of Kerbala for Agricultural Sciences | ||
| Article 6, Volume 4, Issue 2, April 2017, Pages 92-111 PDF (932.09 K) | ||
| Authors | ||
| E. N. Dahel1; Z. M. Kadhim2 | ||
| 1Department of field Crop/College of Agriculture/University of Baghdad | ||
| 2Ministry of Agricalture- Directorate of Agricalture Diyla | ||
| Abstract | ||
| A Field experiment was carried out during the winter season of 2015-2016 at Al-Miqdadiyah-Diyala province to study effect of salicylic acid in growth and yield of wheat (Adna 99 cultivar) under drought conditions. Arandomized complete block design by Split Plot arrangement was used with three replications. The main plots included three levels of drought stress 50%, 75% and 100% from the recommended water. The sub plots included four concentrations of salicylic acid applied 0, 100, 200, and 300 part per million. The results showed that all the studied characteristics of growth, yield and yield components were significantly reduced by increasing drought levels. Plant height, number of tillers, flag leaf area, dry weight of plants, number of spikes number of grain per spike, weight of 1000 grain, Grain yield, biological yield and harvest index were decreased. Lowest values recorded by 50% from recommended water. While 100% from recommended water recorded highest values 82.89cm, 610.6 tiller.m-2, 41.07cm, 1280.9 gm.m-2 , 521.7spike.m-2 , 49.31grain .spike-1 , 33.24 gm, 8.52 ton . h-1 , 24.35 ton . h-1 and 35.02% respectively. Salicylic acid improved all of studied characteristics except number of spikes. The concentration 100 part per million was the best concentration, which recorded 80.35 cm, 571.13 tiller.m-2, 39.63cm2, 1207.7gm.m-2 ,45.81 grain.spike-1 , 33.90 gm,7.58 ton .h-1 , 22.18ton .h-1 and 33.99% , respectively. It was concluded that drought stress reduced growth and grain yield. Salicylic acid improved growth of plants and caused increasing in grain yield with and without drought conditions. | ||
| Keywords | ||
| Salicylic acid; Drought; Wheat | ||
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