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Articles by Majid Jami Al-Ahmadi
Total Records ( 2 ) for Majid Jami Al-Ahmadi
  Farzad Paknejad , Mojtaba Mirakhori , Majid Jami Al-Ahmadi , Mohammad Reza Tookalo , Ali Reza Pazoki and Parisa Nazeri
  Problem statement: Many cultivated area are situated in arid zone, where crop photosynthesis and productivity has limited by drought. Thus any treatment, such as methanol, that improve plant water relation and reduce stress impacts, could be benefit. Approach: In order to investigate effects of methanol application on some physiological properties of soybean under low water stress, a factorial experiment was done at Research Field of Faculty of Agriculture and Natural Resources, Islamic Azad University-Karaj Branch, Karaj, Iran, during 2008, based on a randomized complete block design with three replications. The first factor was different levels of methanol equal to 0 (control), 7, 14, 21, 28 and 35 volumetric percentage (v/v), which were used as foliar applications at three times during growth season of soybean, with 15 days intervals. The second factor was water stress conditions in two levels, based on depletion of 40 and 70% of available soil moisture. Some traits such as Grain Yield, Relative Water Content (RWC), chlorophyll fluorescence parameters and chlorophyll content were measured, one day before and after the third methanol application. Results: Chlorophyll content (Chl), GY, Electrolytes Leakage at second sampling, photochemical capacity of PSII (Fv/Fm), maximum and variable fluorescence (Fm and FV, respectively) were affected by water stress significantly (p<0.05). As drought severity was increased, mean values of photochemical capacity of PSII, Chl and RWC tend to decline, whereas minimum fluorescence (F0) and Electrolytes Leakage were increased. Methanol foliar application influenced significantly (p<0.05) Chl, RWC, Grain Yield, and all fluorescence parameters. There was a positive, high correlation between GY with maximum fluorescence, photochemical capacity and also Chl and RWC in both samplings. Conclusion: It seems applying methanol on water stressed soybean plants can reduce harmful effects of drought and improve plant potential to cope with stress.
  Seyedeh Soudabeh Shobeiri , Davood Habibi , Ali Kashani , Farzad Paknejad , Hossein Jafary , Majid Jami Al-Ahmadi , Mohamad Reza Tookalloo and Javad Lamei
  Problem statement: Mixed cereal-legume cropping can supply valuable forage in dry areas, as well as improving soil characteristics to approach sustainable farming systems in these regions. Approach: In order to comprise quality and quantity of produced forage and to determine the best planting ratio in a hairy vetch and barley mix cropping, a two year study was conducted during 2008 and 2009 in Zanjan Center for Research of Agricultural Science and Natural Resources, Zanjan, Iran, using these two forage crops in a completely randomized block design with five treatments and four replications. Hairy vetch and barley were single- or mix cropped at 100:0, 75:25, 50:50, 25:75 and 0:100 ratios. Results: Analysis of variance of two years data showed hay yield, absorbed N, P and K amounts and crude protein content varied among years and different planting ratio, significantly, with higher amounts in the second year. The highest dry matter yield, absorbed N, P and K and crude protein content were obtained in 50:50 planting ratio. The land equivalent ratio was more than one for all mix cropping treatments, with the highest value in 50:50 planting ratio, which also led to the highest LER in respect to crude protein. Conclusion: A 50:50 mixture of barley-hairy vetch can produce the highest dry forage yield, with a higher LER and the highest forage quality than sole cropping.
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