Results 51 to 60 of about 5,783,911 (210)

Isolation, Identification, and Herbicidal Activity of Metabolites Produced by Pseudomonas aeruginosa CB-4

open access: yesJournal of Integrative Agriculture, 2014
CB-4, a bacterial strain with highly effective herbicidal activity, was isolated from infected corn leaves. Through morphology, physiological and biochemical tests, and 16S ribosomal DNA gene sequencing methods, CB-4 was identified as Pseudomonas ...
Juan YANG   +4 more
doaj   +1 more source

Effects of elevated CO2 and temperature on cocklebur (Xanthium strumarium L.) and its herbicide response

open access: yesPest Management Science, EarlyView.
Elevated CO2 promotes the growth of Xanthium strumarium while increasing its susceptibility to the systemic herbicide trifloxysulfuron‐sodium. The efficacy of the soil‐active herbicide fluometuron remains unaffected by changes in CO2 concentration and temperature.
Islam Emrah Suer, Nihat Tursun
wiley   +1 more source

Synthesis and herbicidal activity of N-oxide derivatives

open access: yes, 2000
As part of an ongoing program on the chemistry and biological activity of N-oxide-containing molecules, a number of novel 1,2,5-oxadiazole N-oxide, benzo[1,2-c]1,2,5-oxadiazole N-oxide, and quinoxaline N,N'-dioxide derivatives were synthesized and ...
Pacce, S,   +11 more
core   +1 more source

Total synthesis and SAR of Alternaric acid towards the development of a new herbicidal lead [PDF]

open access: yes, 2023
Crop protection is essential in agricultural chemistry to help farmers maintain a healthy and productive cropland. However, agrochemical research faces a constant need for innovation in crop protection to be able to meet the global requirement for food ...
Israel, Eva M.
core   +1 more source

2‐Amino‐3H‐phenoxazin‐3‐one is a lead inhibitor of Cuscuta campestris early development: structure–activity relationships of o‐aminophenol‐derived allelochemicals

open access: yesPest Management Science, EarlyView.
Phenoxazinones caused differential types of phytotoxic effects in C. campestris early development. APO is a coherent lead inhibiting C. campestris germination and early seedling growth. Abstract BACKGROUND 2‐Amino‐3H‐phenoxazin‐3‐one (synonym: questiomycin A; abbreviated as APO or Phx‐3) is a naturally occurring phenoxazinone‐type allelochemical with ...
Cristina Díaz‐Franco   +5 more
wiley   +1 more source

Novel tetronamides derived from mucobromic acid: synthesis, structural elucidation, DFT calculations and phytotoxic activity

open access: yesPest Management Science, EarlyView.
The acyclic mucobromic acid, activated by (1S)‐(+)‐10‐camphorsulfonic acid, afforded the chiral compound 1b, precursor for aza‐Michael addition/elimination on the butenolide yielding tetronamides 2b‐7b. Their relative SRSR configuration was confirmed by the spectrometric methods, DFT calculation and statistical methods.
Kamylla CF Faria   +2 more
wiley   +1 more source

Herbicidal derivatives of aminomethylenebisphosphonic acid. Part III. Structure-activity relationship

open access: yes, 1997
Derivatives of aminomethylenebisphosphonic acids constitute a class of promising herbicides. More than 40 N-substituted aminomethylenephosphonic acids were synthesized and evaluated for their herbicidal activity on common cress (Lepidium sativum L.) and ...
GANCARZ R.   +7 more
core   +1 more source

Herbicidal activity of a new paddy bleaching herbicide, benzobicyclon

open access: yesJournal of Pesticide Science, 2008
The herbicidal activity and properties of a novel paddy herbicide, benzobicyclon [3-(2-chloro-4-mesylbenzoyl)-2-phenylthiobicyclo[3.2.1]oct-2-en-4-one], were examined under flooded conditions. Benzobicyclon showed broad-spectrum activity at doses of 200–300 g a.i./ha when applied from pre-emergence to early post-emergence against annual grass, sedge ...
Sekino, Keisuke   +3 more
openaire   +2 more sources

Design, Synthesis, Mode of Action and Herbicidal Evaluation of Quinazolin-4(3H)-one Derivatives Based on Aryloxyphenoxypropionate Motif

open access: yesAgronomy, 2022
To discover new acetyl-CoA carboxylase (ACCase) inhibiting-based herbicides, twenty-nine novel quinazolin-4(3H)-one derivatives were designed and synthesized based on the aryloxyphenoxypropionate motif. The bioassay results showed that most of the target
Chaochao Wang   +8 more
doaj   +1 more source

Sublethal herbicide exposure alters cotton susceptibility to aphid infestation

open access: yesPest Management Science, EarlyView.
Sublethal herbicide exposure altered cotton susceptibility to aphids. Aphid severity was highest when applications occurred at early vegetative stages and declined as the crop matured. In glasshouse, herbicide effects were dose‐dependent. Abstract BACKGROUND Herbicides remain vital tools for weed control, yet their effects can extend beyond weeds to ...
Purushottam Gyawali   +4 more
wiley   +1 more source

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