Document Type : Research Paper


1 Ph.D. Student of Weed Science, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil - Iran

2 Associate Professor, Weed Science, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil – Iran

3 Associate Professor, Horticulture, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil - Iran


In order to study the effect of Oxadiargyl (Topstar) reduced dosages efficacy as a postemergence herbicide, on marketable yield, a field experiment factorial was performed besed on randomized complete block design with three replications and potato's cultivar called Agria in the Ardabil Alarog Agriculture and Natural Resources Research Station during 2013. Factores were Oxadiargyl dosages with seven levels (0 as weedy, 0.05, 0.1, 0.2, 0.4, 0.6 and 0.8 Lit a.i/ha), and application time of Oxadiargyl at different potato growth stages, in three levels (Potato emergence, Stoloning and Potato tuber bulking) with weed free. Statistical analysis showed that 0.8 Lit a.i/ha Oxadiargyl reduced weed biomass 66.16% and it hadn,t significant with 0.6 Lit a.i/ha. Among application time of Oxadiargyl, potato emergence produced the maximum reduction percentage of weed biomass. The results showed that 0.8 Lit a.i/ha increased percent of medium tuber and total tuber yield 88.21 and 51.59%, respectively and decreased percent of small tuber 45.60 percent. According to the results, maximum percent of large tuber and marketable yield was 0.8 Lit a.i/ha at potato emergence stage.


1 . آل ابراهیم م ت، راشد محصل م ح، ویل کاکسون ا، باغستانی م ع و قربانی ر (1390) بررسی کارایی شش علف­کش ثبت نشده در مزارع سیب­زمینی در ایران و تعیین ارتباط تأثیر علف­کش با فعالیت آنزیم P450 مونواکسیژناز. رساله دکتری علوم علف­های­ هرز. دانشگاه فردوسی مشهد.
2 . آل ابراهیم م ت، راشد محصل م ح، ویل کاکسون ا، باغستانی م ع، قربانی ر و سراجچی م (1392) بررسی کارایی چند علف­کش در کنترل سلمه و تاج­خروس در مزارع سیب­زمینی. مجله الکترونیک تولید گیاهان زراعی. 6(1): 37-19.
3 . حسین­زاده ا ا (1392) بررسی و گزینش تک بوته‌های برتر از جمعیت 67/ HPS-II و ارزیابی مقدماتی کلون‌های منتخب سیب‌زمینی. گزارش نهایی طرح پژوهشی خاتمه یافته. مرکز تحقیقات کشاورزی و منابع طبیعی استان اردبیل.
4 . نوری قنبلانی ق (1381) ارزیابی میزان خسارت علف­های هرز در مزارع سیب­زمینی اردبیل و کارایی در روش وجین دستی و کنترل شیمیایی. علوم زراعی ایران. 4: 94-89.
5 . Anderson RL (2009) Impact of preceding crop and cultural practices on rye growth in winter wheat. Weed Technology. 23: 564-568.
6 . Barbe C, Seeruttun S and Gaungoo A (2001) Oxadiargyl: A New preemergence herbicide recommended in potato in Mauritius. Food and agricultural research council, Reduit, Mauritius. Pp.135-138.
7 . Baziramakenga R and Leroux GD (1994) Critical period of quackgrass (Elitrigia repens) removal in potato (Solanum tuberosum L.). Weed Science. 42: 528-533.
8 . Beltrano J and Caldiz DO (1993) Effect of johnsongrass (Sorghom halepense) densities on potato (Solanum tuberosum L.) yield. Pesquisa Agropecuaria Brasileira. 28(1): 21-24.
9 . Cheema ZA, Jaffer I and Khaliq A (2003) Reducing isoproturon dose in combination with sorgaab for weed control in wheat. Pakistan Jourbnal Weed Science Research. 9(3&4): 153-160.
10 . Dickmann R, Melgarejo J, Loubire P and Montagnon M (1997) Oxadiargyl: a novel herbicide for rice and sugar cane. Brighton Crop Protection Conference: Weeds. 1: 51-57.
11 . Eslami SV, Gill GS, Bellotti B and McDonald G (2006) Wild radish (Raphanus raphanistrum) interference in wheat. Weed Science. 54: 749-756.
12 . Hwang IT, Hong KS, Choi JS, Kim HR, Jeon DJ and Cho KY (2004) Protoporphyrinogen IX-oxidizing activities involved in the mode of action of a new compoundN- [4- chloro- 2- fluoro- 5- {3- (2fluorophenyl)- 5- methyl -4, 5 ihydroisoxazol -5- yl- methoxy}- phenyl]- 3,4,5,6 tetrahydrophthalimide. Pesticide Biochemistry and Physiology. 80: 123-130.
13 . Kahramanoglu I and Uygur FN (2010) The effects of reduced herbicide dosages on weed infestation of reduced doses and application timing of Metribuzin on Redroot Pigweed (Amaranthus retroflexus L.) and Wild Mustard (Sinapis arvensis). Turkish Journal Agriculture and Forestry. 34: 467-474.
14 . Lesnik M (2003) The impact of maize stand density on herbicide efficiency. Plant Soil Environment. 49: 29-35.
15 . Moseley C and Hatzios K (1993) Uptake, Translocation and metabolism of Clorimuron in Corn (Zea mayz) and Morningglory (Ipomea spp). Weed Technology. 7: 343-348.
16  . Nice G, Johnson B and Bauman T (2003) Herbicide application timing for corn, soybean and wheat.
17 . Phillip RF and Hingston LT (2011) Evaluation of oxadiargyl herbicide in various Australian horticultural crops.14th Australian Weeds Conference, 6-9 September. 2004. Australia. Pp. 230-231.
18 . Rajcan I and Swanton CJ (2001) Understanding maize-weed competition: resource competition, light quality and the whole plant. Field Crop Research. 71: 139-150.
19 . Roberts JR, Peeper TF and Solie JB (2001) Wheat (Triticum aestivum)row spacing, seeding rate and cultivar affect interference from rye (Secale cereale). Weed Technology. 15: 19-25.
20 . Seefldet SS, Jensen JE and Fuerft EP (1995) Log-logistic analysis of herbicide dese-response relationship. Weed Technology. 9: 218-225.
21 . Talgre L, Lauringson E, Koppel M, Nurmekivi H and Uusna S (2004) Weed control in spring barley by lower doses of herbicides in Estonia. Latvian Journal of Agronomy. 7: 171-175.
22 . Uchino H, Iwama K, Jitsuyama Y, Ichiyama K, Sugiura ERI, Yudate T, Nakamura S and Gopal JAI (2012) Effect of interseeding cover crops and fertilization on weed suppression under an organic and rotational cropping system stability of weed suppression over years and main crops of potato, maize and soybean. Field Crops Research. 127: 9-16.
23 . Urbanowiczu J, Earli chowsk T and Powirska M (1998) Influence of some environmental factors on efficiency of new herbicides in growing of potato. Progress in Plant Protecetion. 38(2): 688-691.
24 . Walker SR, Medd RW, Robinson GR and Cullis BR (2002) Improved management of Avena ludoviciana and Phalaris paradoxa with more densely sown wheat and less herbicide. Weed Research. 42: 257-270.