Volume 3, Issue 7 (vol. 3, No. 7 2014)                   2014, 3(7): 57-66 | Back to browse issues page

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Diyanat Z, Maghsoudi K, Diyanat Z, Emam Y. The effects of salinity and salicylic acid on morphological and physiological traits ‎of sorghum (Sorghum bicolor (L.) Moench) at earlier growth stages ‎. Plant Process and Function 2014; 3 (7) :57-66
URL: http://jispp.iut.ac.ir/article-1-72-en.html
The effects of salinity and salicylic acid on morphological and physiological traits ‎of sorghum (Sorghum bicolor (L.) Moench) at earlier growth stages ‎
Zohre Diyanat1 , Kobra Maghsoudi1 , Zahra Diyanat1 , Yahya Emam * 2
1- Shiraz University
2- Shiraz University , Yaemam@gmail.com
Abstract:   (7055 Views)
In order to evaluate morphological and physiological responses of sorghum (Pegah ‎cultivar) to salt stress (0, 5, 10 and 15 dS/m) and different salicylic acid (SA) levels ‎‎(0, 0.75 and 1.5 mM), an experiment was carried out in research green house of ‎college of Agriculture Shiraz University during 2012 using a factorial as randomized ‎complete block design with four replications. The results showed that salinity ‎reduced stem length and leaf area of sorghum and the effect of salinity level at 15 ‎dS/m was more pronounced. On the contrary, foliar application by SA increased ‎these parameters. Moreover, salt stress and foliar SA increased the activity of ‎catalase, superoxide dismutase, peroxidase and ascorbate peroxidase and ‎chlorophyll content. In summary, it can be concluded that foliar application of ‎sorghum by SA improved growth and enhanced salt tolerance in this plant. Indeed, ‎SA stimulated sorghum growth under salinity stress via enhanced anti-oxidant ‎defense system, reduced oxidative stress and increased photo synthetic pigments. ‎
Keywords: NaCl, catalase, superoxide dismutase
Full-Text [PDF 219 kb]   (2050 Downloads)    
Type of Study: Research | Subject: Salt Stress
Received: 2013/05/26 | Accepted: 2014/01/6 | Published: 2014/09/8
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