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        1 - Effect of superabsorbent polymer application on some agrophysiological traits and yield of chickpea (Cicer arietinum L.) plant under water deficit stress in Horand region
        Saeedeh Babaei Ahmad Afkari
        In order to investigate the effect of using superabsorbent polymer on some growth parameters and performance of chickpea under drought stress conditions, a factorial experiment was carried out in the form of a randomized complete block design with four replications in t More
        In order to investigate the effect of using superabsorbent polymer on some growth parameters and performance of chickpea under drought stress conditions, a factorial experiment was carried out in the form of a randomized complete block design with four replications in the crop year of 2021 in Horand region of East Azarbaijan province. The experimental treatments include three levels of irrigation (full irrigation as a control, mild water restriction or irrigation interruption in the pod setting stage, and severe water restriction or irrigation interruption in the flowering stage) and different amounts of superabsorbent (no use of superabsorbent, 50, 100 and 150 kg/ha), respectively. The results of the analysis of variance of the studied traits showed that the application of stress and the effect of using superabsorbent polymer on all the evaluated traits were significant at the probability level of 1%. The interaction of drought stress and superabsorbent polymer on plant height, leaf chlorophyll content, number of pods per plant, grain yield and biological yield at the probability level of 1% and had no significant effect on other traits. so that the highest grain yield (1710.94 kg.ha-1) was given to the treatment (full irrigation and 150 kg.ha-1). The results showed that with increasing drought stress, the values of physiological traits such as chlorophyll content and relative water content of leaves decreased, but proline content of leaves increased. If the use of superabsorbent significantly increased the physiological traits. According to the obtained results, the superabsorbent reduced the damage caused by drought. Manuscript profile
      • Open Access Article

        2 - Effect of foliar application of salicylic acid and biofertilizerson in adjustment of the effects of drought stress on some morphophysiological characteristics, dry matter yield and essential oil production of basil (Ocimum basilicum L.)
        Hamdollah Seyfi Ahmad Afkari
        In the present study, the influence of foliar application of salicylic acid and biofertilizers on modulating the effects of drought stress on some morphophysiological characteristics, dry matter yield and essential oil production of basil (Ocimum basilicum L.) was inves More
        In the present study, the influence of foliar application of salicylic acid and biofertilizers on modulating the effects of drought stress on some morphophysiological characteristics, dry matter yield and essential oil production of basil (Ocimum basilicum L.) was investigated using a factorial experiment based on a randomized complete block design in triplicate within the 2019 in Hurand . Experimental treatments included three levels of drought stress (70, 140 and 210 mm of evaporation from Class A evaporation pan) as the first factor, seed inoculation with bacteria at five levels (no inoculation as control, inoculation with Azotobacter, Pseudomonas, Azospirillum and co-inoculation with Azotobacter, Pseudomonas and Azospirillum) as the second factor and salicylic acid foliar application at four levels (0, 0.5, 1 and 1.5 mM) as the third factor. .The results of this study showed that the drought stress had an important role in reducing the basic factors in basil growth. The results showed that with increasing the intensity of drought stress, the proline content increased. So that the highest proline content (1.69 μM/g fresh weight) were obtained from the treatment of 210-mm evaporation. Based on the results obtained in this experiment can be expressed, the use of salicylic acid at a concentration of 1.5 mM and the co-inoculation of bacteria play a role in relieving the negative effects of drought stress and their administration can effectively increase the quantitative and qualitative properties of the basil. Manuscript profile