List of Articles Mehdi Rastgou

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  1 - The Effect of Different Methods of Calculation of Germination Rate in Evaluation of Sprouting potential of Purple nutsedge (Cyperus rotundus L.) tuber and Estimation of Thermal Thresholds
  sajad mijani mehdi rastgoo ali ghanbari mehdi nassiri mahallati jose luis Gonzalez-Andujar
  Purple nutsedge, is one of the most burdensome weeds in the agroecosystems, due to the rapid growth and proliferation of underneath tubers. The tubers are the main means of propagation and distribution of Purple nutsedge. Information on environmental conditions that reg More

  Purple nutsedge, is one of the most burdensome weeds in the agroecosystems, due to the rapid growth and proliferation of underneath tubers. The tubers are the main means of propagation and distribution of Purple nutsedge. Information on environmental conditions that regulate the growth of the vegetative organs would help to predict the emergence time of perennial weeds. Several methods of germination were tested to compare the germination potential and determine the thresholds (the main temperatures) for germination of the tubers. The results showed that the () and ( methods are not an appropriate index for estimating the temperature thresholds and evaluating sprouting potential. Based on germination rate (tubers per day -1) and weighted germination rate (tubers per day-1) indices, temperatures of 25 and 30°C were the best temperatures. On the other hand, based on the thermal germination rate index, (tuber per°C -1 per day-1) the best temperature is 25°C. Among indices, the thermal germination rate index is a more justified assessment for precise description of sprouting potential versus temperature due to take into account the amount of used heat. In order to study the germination percentage, germination rate, weighted germination rate, Dent-like model showed better fit (R2 adjusted =0.83 to 0.99) but for study of the thermal germination rate index segmented model was superior model (R2 adjusted =0.76). In general, the minimum, optimal and maximum range of germination of Purple nutsedg was determined to be between 7.51 to 9.20, 28.5 to 32.62, and 0.43 to 42.49 ° C, respectively. Manuscript profile
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  2 - Evaluation the Effects of Some Pre-plant Herbicide and Plastic Mulch on Weed Flora of Transplanted Tomato (Lycopersicon esculentum Mill.)
  Alireza Ranjbaran Mehdi Rastgoo
  To evaluate the effect of plastic mulch and some pre-plant herbicides on weed control and yield of transplanted tomato, an experiment was conducted in factorial arrangement as a randomized complete block design (RCBD) with three replications at Fariman in 2015. The expe More

  To evaluate the effect of plastic mulch and some pre-plant herbicides on weed control and yield of transplanted tomato, an experiment was conducted in factorial arrangement as a randomized complete block design (RCBD) with three replications at Fariman in 2015. The experimental factors including herbicide application at seven levels including no herbicide application and application of 3 and 1.5 L.ha-1 of Trifluralin, pendimethalin (stomp) and microcapsule formulation of pendimethalin (prowl) as first factor and second factor was mulch application at two levels including transparant and black plastic mulch. In addition a full season hand weeding as control treatment considered in each replication. Results indicated that using both of mulches (black and transparant) and pre-plant herbicides was controlled weeds compeletly and increased 60 percent of tomato biomass and 67.5 percent of fruit yield. Black mulch was more effective in weed control and increases tomato yield more than transparant mulch and in three date of sampling, black mulch was controled weeds compeletly. Using 3 lit ha-1 of herbicides showed the more weed control and tomato yield than 1.5 lit.ha-1 of herbicides, like using 3 lit.ha-1 of Trifluralin reduced 25 percent of weed biomass and increased 25 percent of of fruit yield. Using black plastic mulch with pre-plant herbicides showed that the highest weed control (100%) and highest tomato biomass (118 ton.ha-1) and highest tomato fruit (150 ton.ha-1) was obtained in black mulch with 3 lit.ha-1 of prowl herbicide. According to our results, we can use black plastic mulch with pre-plant herbicides for good control of weeds and earn the high transplanted tomato yield. Manuscript profile
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  3 - Isolation and evaluation of the efficacy of Fusarium oxysporum Schlecht. for biological control of Egyptian broomrape (Phelipanche aegyptiaca (Pers) Pomel. ) in tomato (Lycopersicon esculentum Mill. )
  Moslem Taghipour Ghorbanali asadi Mehdi Rastgoo Mahmoodreza karimi shari
  AbstractThe use of soil fungi such as Fusarium is one of the strategies for controlling and managing parasitic plants. Accordingly, in order to evaluate the pathogenic potential, Fusariumoxysporum was isolated from the stems of infected plants of Phelipancheaegyptiaca a More

  AbstractThe use of soil fungi such as Fusarium is one of the strategies for controlling and managing parasitic plants. Accordingly, in order to evaluate the pathogenic potential, Fusariumoxysporum was isolated from the stems of infected plants of Phelipancheaegyptiaca and after identification, it was tested in a greenhouse using two treatments inoculated with fungal suspension. F. oxysporum and control treatment (no inoculation) were performed. In the inoculated treatment, fungal suspension with a concentration of 107 × 5 spores per ml, at a rate of 50 ml per pot and in the control treatment, tap water was used. Studied traits were including total number of parasite stems, number of parasite stems removed, number of diseased and dead parasite stems, number of healthy parasite stems, and number of flowering stems, number of parasite stems per plant, stem height of the parasite and the dry weight of Egyptian broomrape and tomato plants. The results of comparing the mean of the two treatments with t-test showed a significant difference in the dry weight of broomrape and tomato so that the mean dry weight of broomrape in the treatment inoculated with F. oxysporum (6 g), compared to the control treatment (16.84 g), was 2.8 times lower. Also, the highest dry weight of tomato (36.43 g) was observed in the inoculated treatment with F. oxysporum, which increased by 44.27% compared to the control with 25.25 g. In the host range test, none of the tested plants showed signs of persistent infection, including permanent wilting and necrosis. In general, the use of this fungus in the biological control of Egyptian broomrape could have an effect on all studied traits, reduce the dry weight of Egyptian broomrape and increase the dry matter of tomato. Manuscript profile
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  4 - Efficiency study of sethoxidim in controlling little canarygrass (phalaris minor Retz.) and winter wild oat (Avena ludoviciana Duriea) in presence of different salts and ammonium sulfate
  Mahnaz Mirzaei Mehdi Rastgoo Kamal HajmohamadNia Ghalibaf Eskandar Zand
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  5 - مروری بر گیاهان زراعی تراریخته مقاوم به علف‏کش: مزایا و معایب
  Javeed Gharakhlou Abolfazle Derakhshan Ribas Vidal Mehdi Rastgoo
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