Results 31 to 40 of about 5,600 (215)
Ciência Agrícola, 2019 Nicosulfuron is an herbicide used in corn crop for controlling weeds, some hybrids are sensitivity to nicosulfuron even more when it is applied near to the application of nitrogen fertilizers.
Heitor Franco de Sousa +3 more
doaj +1 more source
Field and laboratory assessments of sugarcane mutants selected in vitro for resistance to imazapyr herbicide [PDF]
Crop Breeding and Applied Biotechnology, 2017 Seven imazapyr-tolerant mutant sugarcane plants, previously generated by in vitro mutagenesis, were studied. The imazapyr concentrations required to inhibit their acetolactate synthase (ALS basal activity) (IC50 as μmoles acetoin h-1 mg-1 protein) were 0.
RS Rutherford +4 more
doaj +1 more source
Characterization of Two Forms of Acetolactate Synthase from Barley [PDF]
BMB Reports, 2003 Acetolactate synthase (ALS) catalyzes the first common step in the biosynthesis of valine, leucine, and isoleucine. ALS is the target site for several classes of herbicides, including sulfonylureas, imidazolinones, and triazolopyrimidines. Two forms of ALS (designated ALS I and ALS II) were separated from barley shoots by heparin affinity column ...
Jong-Mo, Yoon +3 more
openaire +2 more sources
Response of Herbicide-Resistant Palmer Amaranth (Amaranthus palmeri) Accessions to Drought Stress
International Journal of Agronomy, 2013 Palmer amaranth is a very problematic weed in several crops in the southern USA due to its competitive ability and resistance to herbicides representing different mechanisms of action.
Aman Chandi +7 more
doaj +1 more source
Properties of Mutant Acetolactate Synthases Resistant to Triazolopyrimidine Sulfonanilide [PDF]
Plant Physiology, 1990 Triazolopyrimidine sulfanilides are a class of highly active herbicides whose primary target is acetolactate synthase. Spontaneous mutants of tobacco (Nicotiana tabacum) (KS-43) and cotton (Gossypium hirsutum) (PS-3 and DO-2) resistant to triazolopyrimidine sulfonanilide were selected in tissue culture. Acetolactate synthase partially purified from the
M V, Subramanian +5 more
openaire +2 more sources
Acetolactate Synthase Inhibiting Herbicides Bind to the Regulatory Site [PDF]
Plant Physiology, 1991 Acetolactate synthase from spontaneous mutants of tobacco (Nicotiana tabacum; KS-43 and SK-53) and cotton (Gossypium hirsutum; PS-3, PSH-91, and DO-2) selected in tissue culture for resistance to a triazolopyrimidine sulfonanilide showed varying degrees of insensitivity to feedback inhibitor(s) valine and/or leucine.
M V, Subramanian +3 more
openaire +2 more sources
BMC Plant Biology, 2018 Background Weed management is critical to global crop production and is complicated by rapidly evolving herbicide resistance in weeds. New sources of herbicide resistance are needed for crop plants so that applied herbicides can be rotated or combined to
Gregory N. Thyssen +6 more
doaj +1 more source
Selectivity of Iodosulfuron-Methyl to Oat Cultivars [PDF]
Planta Daninha, 2017 Weeds are among the main constraints to high grain yield on hexaploid oat (Avena sativa), but there are few herbicides registered for weed control on this cereal crop. The objectives of this study were to evaluate the impact of the iodosulfuron-methyl on
A.R.S. QUEIROZ, +5 more
doaj +1 more source
Fitness costs associated with evolved herbicide resistance alleles in plants [PDF]
, 2009 Predictions based on evolutionary theory suggest that the adaptive value of evolved herbicide resistance alleles may be compromised by the existence of fitness costs.
Martin M. Vila‐Aiub +5 more
core +1 more source