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Interaction effect of calcium and Jasmonic acid on some physiological traits and tuber yield of three potato cultivars
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Abstract: (2642 Views) |
Potato is cultivated as a spring plant in cold areas. The challenges facing potato cultivation are late spring frost, early autumn cold and summer heat in these areas. The present factorial experiment based on randomized complete blocks design with three replications was carried out in Gandoman region, Chaharmahal and Bakhtiari Province, Iran in 2014-15 cropping years. The first factor included three cultivars Jelli, Fontane and Burren and the second factor was the combination of different treatments of calcium and Jasmonic acid (with 5 micro Molar concentration) consisted of: 1- calcium + Jasmonic acid before rhizome formation stage (T1), 2-calcium + Jasmonic acid after rhizome formation stage (T2), 3- Jasmonic acid before rhizome formation stage(T3), 4- Jasmonic acid after rhizome formation stage (T4), 5- calcium from calcium nitrate source(T5), 6- control (without application of two factorsT6). According to the results, it can be deduced that Jasmonic acid and calcium reduced the undesirable effect of temperature tension in both stages before and after the rhizome formation. In addition, these positive effects were higher when Jasmonic acid and calcium were applied in combination and prior to the rhizome formation. According to the obtained results, both Jasmonic acid and calcium factors had a significant effect on the under investigation cultivars, so that Jelly cultivar had better reaction than other cultivars. Also, among all under investigation treatments, T1 treatment in all investigated traits except Malondialdehyde, showed the highest mean in all three examined cultivars. Totally, according to the obtained results, the application of combined Jasmonic acid and calcium treatment in the pre-rhizome stage, reduced the adverse effect of temperature and germicidal stimulation, resulted in higher yield. |
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| Keywords: Antioxidant enzymes, Protein and Chlorophyll content. |
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Full-Text [PDF 1029 kb]
(1766 Downloads)
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Type of Study: Applicable |
Subject:
Crop Physiology
Received: 2017/08/26 | Accepted: 2017/08/26 | Published: 2017/08/26
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