List of Articles قارچ کش

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - The effect of some systemic fungicids against Barley loose smut
  Mehdi Nasrisfahani Mohammad Jaber Gharibi Sadegh Jalali
  Barley (Hordeum vulgar) is one of the most important strategical world's agricultural products which stand in the 4th position after wheat, soya and corn, Barley, also attact with several diseases out of which, true loose smut is one of the most important one, which cau More

  Barley (Hordeum vulgar) is one of the most important strategical world's agricultural products which stand in the 4th position after wheat, soya and corn, Barley, also attact with several diseases out of which, true loose smut is one of the most important one, which causing qualitative and quantitative losses. Various management strategies are taken into considerations to control the disease. One of the economical methods to manage the diseases is the application of general systemic fungicides. In this study, we evaluated some systemic fungicides including carboxin thiram (Dividend star ®, %75 wp), triadimenol (Baytan®, %7.5 wp), diniconazol (Somi8®, wp), triniconazol (Real®, FS), repectively in various dosage levels of 2, 2, 1/5 and. /2,  in comparison with a newer fungicid Dividend star® 036 (FS) also, in various dosage levels, which was taken into studies on a Barley cultivar "Karun dar Kavir" (Nosrat).The experiment was carried out in a Rendomized Block Design (RBD) with the above fungicides in various dosage in 10 treatments in the field conditions at the years of 2006 -2007. The results showed that, the fungicides Dividend® (2ml/lit), Somi8® (2gr/lit), Real® (0.02ml/lit) and Baytan® (1.5 gr/lit) were the most efficient fungicides in the disease control repectively. Carboxy thiram (2gr/lit) and Dividend® (1ml/lit) were the least concerned on the disease control in comparison to other fungicides, including the control.  Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  2 - Comparison of cultural and chemical measures of controls on Rhizoctonia disease of potato
  Mehdi Nasr Esfahani
  Rhizoctonia canker, also known as stem canker and black scurf of potato, Rhizoctonia solani Kuhn, causing serious economic losses by canker on under ground stem, roots, stolens, blanding of tubers and black scurf on potato surfacee in Isfahan. In this manscript, the eff More

  Rhizoctonia canker, also known as stem canker and black scurf of potato, Rhizoctonia solani Kuhn, causing serious economic losses by canker on under ground stem, roots, stolens, blanding of tubers and black scurf on potato surfacee in Isfahan. In this manscript, the effects of green chitting and or disinfection of potato seed tubers and soil were considered on this disease in the fields. The laboratory trails on R. solani isolates indicated that, almost all the sclerotinia are pathogenic. The seed tubers of four potato cultivars were selected and kept under room temperature along with normal light and high humidity for two months. Then, they were sown in the highly infested soil to the disease. The results indicated that the green chittings reduced Rhizoctonia stem canker severity effectively. In comparison to the above experiments, the fungicide screening, Rovral in the form of seed, soil and simultaneous seed and soil applications were carried out in the same fields. The results showed that the stem canker severity was reduced effectively compared to chittings and that of control. Increased growth response was observed in only green chitted potato seed tubers compared to other treatments.  Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  3 - Assessment of barley seeds chemical treatments with some conventional fungicides on barley strip controlling
  Soleiman Jamshidi Ahmad Ghaffari Mohammad Sadeghzadeh Mehdi Mianaji
  In order to evaluation of conventional fungicides effect on barley strip disease controlling, infected barley seeds of PropStar variety were collected from Achachy region barley fields located in Miyaneh, Iran and their infection percentage has been determined about 72% More

  In order to evaluation of conventional fungicides effect on barley strip disease controlling, infected barley seeds of PropStar variety were collected from Achachy region barley fields located in Miyaneh, Iran and their infection percentage has been determined about 72% by culture plate test method. An experiment was conducted in greenhouse conditions for evaluation of 0.5, 1 and 2 % of Carboxin 75WP, Carboxin-tiram 75WP, Tilt 250EC, Carbendazim 60WP, Rovral-TS 52.5WP, Benomyl 50WP, Diniconazole 2WP, Difenoconazol 3DS, Maneb 80WP and Mancozeb 80WP on seed viability, as completely randomized design with 4 replications. The results revealed that all treatments didn’t have significant difference with control rather than Tilt and 2% of Carboxin-tiram. Another experiment was conducted as randomized complete block design with 3 replications in field condition. After seed treatments with recommended doses of above fungicides, 100 seeds was sown in a 10 m rows with 1 cm intervals in each plot. Plant infection percentages were calculated and analysis of variance and mean comporisons with Duncan’s multiple range test in 5% probability showed that Benomyl and Carbendazim had no effect on disease controlling. Also, other fungicides had significant difference with control and all of them can be recommended for field applications. However the most effective fungicides were Rovral-TS and Mancozeb and Maneb and Difeniconazole had the least effect on the disease, statistically. Manuscript profile