in order to evaluate the effect of row space and weed management on weed population, chickpea yield and yield components, a factorial experiment based on rcbd with three replications was conducted at field research of agriculture college of lorestan university in cropping season of 2006-2007. in this research experimental factors were chickpea row spaces with four levels (15, 20, 30 and 40 cm w...

in order to investigate the effect of chemical herbicides on control of broad leaf weeds of common bean, an experiment was conducted in 2007 at yasouj with 12 treatments in a randomized complete block design with 3 replications. treatments consisted of preplant application of trifluralin herbicide at 960 g ai ha-1; postemergence application of bentazon at 1200 g ai ha-1; imaztapir at 50, 75 and...

PPO-inhibiting herbicides in combination with glyphosate for postemergence applications is a common approach to manage glyphosate- and ALS-inhibitor-resistant weeds. PPO-inhibitors can reduce translocation when applied tank-mixtures, but adjuvants may be used overcome this effect. Additionally, optimal droplet size affected by tank-mixtures of different it crucial herbicide efficacy. Field gree...

In Arkansas, resistance to protoporphyrinogen IX oxidase (PPO)-inhibiting herbicides in Amaranthus palmeri S. Wats. is mainly due target site mutations. Although A. PPO-mutations are well investigated, the cross-resistance that each ppo mutant endows weed populations not yet understood. We aimed evaluate response of PPO-resistant accessions, harboring ppo2 mutations ?G210 and G399A, multiple PP...

Abstract A comprehensive, Wisconsin state-wide assessment of waterhemp response to a diverse group herbicide sites action has not been conducted. Our objective was characterize the collection accessions postemergence (POST) and preemergence (PRE) herbicides commonly used in corn soybean Wisconsin. Greenhouse experiments were conducted with more than 80 from 27 counties. POST treatments included...

Dean E. Riechers Corresponding author. Department of Crop Sciences, University of Illinois, Urbana, IL 61801; [email protected] Two studies investigated off-target exposure of soybean to plant growth regulator (PGR) herbicides and determined if simultaneous exposure to PGR herbicides and labeled soybean herbicides increase PGR injury. The PGR herbicides, 2,4-D, clopyralid, and dicamba, as well ...

Resistance to protoporphyrinogen oxidase (PPO) inhibitors in Palmer amaranth is a major concern, given the high selection pressure and increasing number of populations with reduced sensitivity PPO herbicides US. We evaluated effect five soil-applied on (Amaranthus palmeri S. Wats.) collected 2014 2015 Arkansas, USA. Soil-applied saflufenacil, sulfentrazone, flumioxazin seedling emergence 91–100...