in order to study the response of wheat (triticum aestivum) cv. chamran and wild barley (hordeum spontaneum) to different herbicides, a pot dose response experiment was conducted in a completely randomized design with three replication at research greenhouse of ferdowsi university of mashhad in 2008. different doses of herbicides including clodinafop propargyl, pinoxaden, sulfosulfuron, and met...

This paper reports the first C. radiata population with resistance to glyphosate and multiple acetolactate synthase (ALS) inhibitor, imazamox. Two populations, one putative resistant (R) susceptible (S), were used in studies. Dose–response experiments performed evaluate factor (RF). Shikimic acid accumulation, 5-enolpyruvylshikimate-3-phosphate (EPSPS) ALS enzyme activities studied together che...

This work aimed to study the intrinsic tolerance of Greek lentil accessions to imazamoxherbicide by combining bioassays, pot and field experiments. Initially, 31 genotypes wereevaluated in Petri dish bioassays for their tolerance to six concentrations of imazamox. Theaverage root length of 10 lentil seedlings/dish at seven days after herbicide application was usedfor non-linear regression analy...

A tall waterhemp population from Missisippi was suspected to be resistant to glyphosate. Glyphosate dose response experiments resulted in GR50 (dose required to reduce plant growth by 50%) values of 1.28 and 0.28 kg ae ha 21 glyphosate for the glyphosate-resistant (GR) and -susceptible (GS) populations, respectively, indicating a five-fold resistance. The absorption pattern of C-glyphosate betw...

Rigid ryegrass (Lolium rigidum) is one of the most troublesome weeds in different crops in the Mediterranean region. A rigid ryegrass biotype from an olive grove in Jaén province (Andalusía, southern Spain), potentially resistant to glyphosate (RG), was tested for its resistance level through dose-response assays using a susceptible biotype (SG). To test the hypothesis of a non-target-site-base...