Effect of drought stress and salicylic acid on yield and mucilage content of the medicinal herb Plantago ovata Forssk
نویسندگان
1 Department of Soil Science, Faculty of Agriculture, Vali-e-Asr University, Rafsanjan, Kerman, Iran
2 Department of Soil Science, Faculty of Agriculture, Vali-e-Asr University, Rafsanjan, Kerman, Iran
3 Department of Soil Science, Faculty of Agriculture, Vali-e-Asr University, Rafsanjan, Kerman, Iran
doi
10.22059/jdesert.2015.56487چکیده
Since there is limited information on the simultaneous effect of drought stress and salicylic acid on yield and mucilagecontent of the medicinal herb, Plantago ovata Forssk is available, a pot experiment was conducted in factorial form basedon a randomized complete block design with three replications in Jiroft, Kerman Province, south of Iran. As the firstfactor, drought stress included four levels of irrigation: 100℅ field capacity (FC) (no stress), 75℅ FC (low stress), 50℅FC (medium stress) and 25℅ FC (high stress). In the second factor, salicylic acid had four levels: 0, 0.01, 0.5 and 1 mM. The results showed that maximum yield and yield components of P. ovata Forssk were obtained with 100℅ FC andsimultaneous application of 1 mM salicylic acid. Minimum amounts of yield and yield components resulted fromirrigation based on 25℅ FC with no application of salicylic acid. Such an outcome revealed the significant role of salicylicacid in increasing the tolerance of Plantago ovata Forssk to drought stress.
