Effect of Methyl Jasmonate in Alleviating Adversities of Water Stress in Barley Genotypes
Journal Title: International Journal of Farming and Allied Sciences - Year 2015, Vol 4, Issue 2
Abstract
Study to find out the response of barley (Hordeom vulgar L.) genotypes (Yousef, Morocco) to foliar application of methyl jasmonate was carried out under water limited environment, at the Agricultural Biotechnology Research Institute of Iran (ABRII), Karaj during 2010-11. All plants were sprayed with 100 ppm methyl jasmonate, and expanded leaves were harvested and extracted 24 h and 72 h later. The wire house experiment was laid out in completely randomized design. Data regarding of physiological traits (abscisic acid and auxin contents, Stomatal conductivity, proline contentsand relative leaf water contents) were studied in leaves of barley genotypes (Yousef as tolerant and Morocco as susceptible). The data so collected were analyzed statistically by analysis of variance (anova) technique and LSD at 1% probability was used to compare the differences among treatments’ means. In both genotypes drought stress increased in abscisic acid contents and with methyl jasmonate application further enhanced. Auxin contents decreased by drought stress, but methyl jasmonate had no significant effect on its content in both genotypes. Stomatal conductivity decreased in both genotypes under drought, with simultaneous decrease was observed in methyl jasmonate- treated plants. Water stress caused to decrease in proline contents and exogenously applied methyl jasmonate led to a further increment. In both genotypes relative leaf water content were decreased in drought but alleviated with methyl jasmonate treatment. These beneficial effects led to improvement in physiological index under drought. These results suggest the involvement of methyl jasmonate in improving the drought tolerance of barley as an important cereal crop.
Authors and Affiliations
Mohammad Saeid Pazirandeh, Tahereh Hasanloo, Maryam Shahbazi, Vahid Niknam and Ali Moradi-Payam
Keywords
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