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Showing 4 results for rahimi

Azadeh Khoram Ghahfarokhi, Asghar Rahimi, Benyamin Torabi, Shahab Maddah Hosseini,
Volume 2, Issue 1 (Journal of Oil Plants Production 2015)
Abstract

Humic acid as an organic acid produced by humus and other natural resources can improve nutrients absorption and seed yield. In order to study the effect of granular humic acid and foliar application of compost tea and vermiwash on nutrient absorption, chlorophyll content and seed yield of safflower (Carthamus tinctorius L.), an experiment was conducted as a factorial experiment based on randomized complete block design with three replications in agricultural research farm at Vali-e-Asr University of Rafsanjan. Treatments included of soil application of humic acid (0, 500, 1000 and 1500 kg ha-1) and foliar spraying of vermiwash 1:10, vermiwash 1:20, compost tea and distilled water as control. Results indicated that humic acid application had significant effect on the zinc, nitrogen and phosphorus content of shoot, chlorophyll index and seed yield. On the other hand, compost tea foliar application significantly influenced zinc and copper content of shoot, chlorophyll content and seed yield of safflower. It seems humic acid application (1500 kg.ha-1) in soil along with compost tea foliar application was the best treatment for producing of seed yield and higher nutrition absorption, chlorophyll content in safflower.


Nilofar Vahdi, Esmaeil Gholinezhad, Sirous Mansourifar, Leyla Gheyrati Arani , Mehdi Rahimi,
Volume 2, Issue 1 (Journal of Oil Plants Production 2015)
Abstract

This research in order to evaluate the effect of different levels of irrigation regime on yield and yield components of soybean in Urmia region at the Urmia agricultural high school Research during 2012 using split plot based on a randomized complete block design with three replications. Drought treatments (optimum irrigation 60 mm, moderate drought stress 110 mm and severe drought stress 160 mm evaporation by evaporation pan Class A) were included in main plots and the Cultivars (Clark, Williams and Onion) were allocated in subplots. The results of variance analysis showed that the effect of drought stress on seed yield, oil and protein content was significant (P<0.01), so that the maximum and minimum oil and protein value obtained by optimum irrigation and severe drought stress conditions, respectively. However, for relative water content and leaf chlorophyll, there was no significant difference. Severe drought stress reduced the grain yield by 63 and 45% compared to the optimum irrigation and moderate stress conditions, respectively. In optimum irrigation and severe drought stress conditions, the highest seed yield, oil yield and protein yield, obtained by Onion genotype. A Clark genotype in comparison with other cultivars had the minimum seed yield, in severe drought stress conditions.


Marefat Mostafavi Rad, Amin Nobahar, Mehran Gholami, Ali Ajili Lahigy, Iraj Boniadi, Shayegan Adibi, Mohammad Reza Rahimian, Ebrahim Akbarzadeh,
Volume 2, Issue 2 (Journal of Oil Plants Production 2016)
Abstract

In order to evaluate the land equivalent ratio based on forage yield, oil content and some elements of peanut (Arachis hypogaea L.) grain in intercropping with corn (Zea mays L.), an experiment was carried out during 2013 and 2014 cropping seasons based on a randomized complete block design with three replications in the experimental field of Agricultural and Natural Resources Research and Education Center in Guilan province, Rasht, Iran. Sole cropping of corn and peanut, corn and peanut intercropping patterns with the ratio of 1:1, 2:1, 1:2 and 2:2 planting rows comprised the experimental treatments. The highest corn forage yield was obtained in corn-peanut intercropping pattern with the ratio of 2:1 planting rows. In this research, corn-peanut intercropping pattern with the ratio of 1:2 planting rows had superiority for forage yield, grain yield, oil and protein yield of peanut grain to other corn-peanut intercropping patterns. The lowest forage and grain yield of peanut was shown in corn-peanut intercropping pattern with the ratio of 2:2 planting rows. Results showed that forage and protein yield related to grain yield of peanut. There was a positive and significant correlation between oil and protein yield with grain yield of peanut. But, inversely relationship was shown between nitrogen and phosphorus content in peanut grain. Based on the results of this experiment, corn-peanut intercropping patterns with the ratio of 1:2 and 1:1 planting rows could be recommendable for peanut, grain yield and land equivalent ratio enhancement under climatic condition of the region, respectively.


Marefat Mostafavi Rad, Amin Nobahar, Mehran Gholami, Ali Ajili Lahigy, Iraj Boniadi, Shayegan Adibi, Mohammad Reza Rahimian, Ebrahim Akbarzadeh,
Volume 2, Issue 2 (Journal of Oil Plants Production 2016)
Abstract

In order to evaluate the quantitative and qualitative yield of peanut (Arachis hypogaea L.) in response to starter nitrogen rates two separate experiments were performed in 2013 and 2014 cropping season as randomized complete block design with three replications, in experimental field of Agricultural and Natural Resources Research and Education Center of Guilan Province, Rasht, Iran. Four rates of nitrogen including of zero, 100, 150 and 200 kg/ha comprised the experimental treatment. The results of this research showed that with increment of starter nitrogen application, duration of developmental stages in peanut enhanced. The greatest pod (3561 kg/ha) and seed yield (1740 kg/ha) of peanut, grain oil (49.86 percent) and nitrogen content (3.91 percent), oil yield (867 kg/ha) and protein yield (426.5 kg/ha) were obtained at 100 kg N/ha level. Application of 150 kg N/ha showed superiority for pod number per plant (21.30) and grain number per pod (1.39). Also, application of 200 kg N/ha caused to enhance plant height (73.35 cm) and grain phosphorus content (0.437 ppm) in peanut. In addition, there was negative and significant correlation between grain yield and some traits such as day number to initial flowering, day number to the end of flowering and maturity. The correlation coefficient between grain yield and oil (r= 0.99**) and protein yield (r= 0.89**) was positive and significant. In this experiment, oil and protein yield of peanut per unit area mostly related to grain yield. In general, results showed that the application of starter nitrogen up to 100 kg/ha enhanced pod and grain yield of peanut and oil and protein yield in Guilan province climatic condition.



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سامانه نشریات دانشگاه یاسوج - مجله تولید گیاهان روغنی Journal of Oil Plants Production
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