Efficacy of Sulfosulforon (Apyrus) and Metham Sodium (Vapam) Herbicides on Control of Broomrape (Orobanche aeygptiaca) in Tomato Fields

Subject Areas : Journal of Crop Ecophysiology

الهام  Zamanzadeh ¹ (Former MSc. Student of Weed Science, Mashhad Branch, Islamic Azad University, Mashhad, Iran)
S.M.  Nabavi Kalat ² (Assistant Prof., Department of Agronomy and Plant Breeding, Faculty of Agriculture, Mashhad Branch, Islamic Azad University, Mashhad, Iran)
S.  Norouzzadeh ³ (Assistant Prof. Agricultural and Natural Resources Research Center, Khorassan Razavi, Mashhad,Iran)

Received: 2011-03-06 Accepted : 2011-08-25 Published : 2011-08-23

Keywords: dry matter, chemical control, Sulfosulforon,

Abstract :

In order to evaluate the effect of Metham Sodium and Sulfosulforon dosages on broomrape control and tomato yield an experiment was conducted using randomized complete block design with 4 replications in Mashhad Iran. Treatments were Metham Sodium and Sulfosulforon at the rates of 26.5, 53, 79.5, and 106 gr.ha-1, at the rates of 400, 600.800, and 1000 kg.ha-1. The results showed that Metham Sodium was more effective than Sulfosulforon. The highest  dry matter, number of broomrape foliage and tomato yield were obtained by using 1000 and 800 kg. ha-1 of Metham Sodium. Sulfosulforon was applied as post emergence once in this experiment. It seems that because of this reason efficiency is less than that of  comparison with Metham Sodium. Thus pre and post multi – applications of the herbicide was suggested during cropping season.