The Environmental Hazards Assessment Program of the California Department of Food and Agriculture conducted a well survey in Tulare County to determine the presence of the herbicides simazine, atrazine, prometon, bromacil and diuron in well water. These herbicides were chosen because of their use on crops grown in Tulare County and on rights-of-way throughout the state. Twelve sampling areas we...

Background: The use of allelopathic plant extracts as herbicide is being popularized in recent years. Objective: This research has been conducted to evaluate the allelopathic potential of caltrop (Tribulus terrestris L.) on seed germination and growth of Avena fatua L., Chenopodium album L., Setaria viridis L. and Amaranthus retroflexus L. Methods: This research was done to evalature the ef...

introduction: farmers usually combine various herbicides with the aim of reducing the number of machinery passes across the field, preventing weed resistance to herbicides, and saving time and money. combination of herbicides is not only recommended for the management of herbicide resistance, but for increasing efficacy compare with a single herbicide application and expanding spectrum weed con...

Pre-emergent herbicides are applied directly in the soil or over straw no-till systems and can be retained, reducing product’s availability. The current study characterizes retention of diclosulam diuron forage turnip (FT), buckwheat (BW), black oat (BO) straws. Radiometric techniques evaluated sorption–desorption leaching processes. Spectroscopic microscopic methods characterized chemical morp...

A field experiment was conducted at the Pulse Research Centre of Bangladesh Agricultural Research Institute, Ishurdi, Pabna during Kharif-II season of 2010 to evaluate the efficacy of five herbicides for controlling weeds associated with mungbean (BARI Mung-6). The five herbicides such were: Paraxon (27.6% WV Paraquat dichloride salt), M-clor 5G (Butaclor), Topstar 40 WP (40% Oxadiargyl), Hamme...

Physiology is generally considered to consist of that branch of biology concerned with the function of liv­ ing organisms and the underlying physicochemical processes, with gen­ eral physiology specifically concerned with the analytical investigation of the molecular and cellular mecha­ nisms of fundamental physiologi­ cal processes. The Journal of General Physiology (the JGP) was founded by Ja...

BACKGROUND Crops resistant to glyphosate may mitigate the increasing contamination of the environment by herbicides, since their weeding requires smaller amounts of herbicides and fewer active ingredients. However, there are few published data comparing the fate of glyphosate with that of substitute herbicides under similar soil and climatic conditions. The objectives of the work reported here ...

Growing most major crops currently involves the use of chemical herbicides to control weeds. However, their regular can lead such undesirable consequences as contamination soil and groundwater, accumulation residues in crop, emergence resistant populations Therefore, developing eco-friendly with new mechanisms action is necessary. Natural phytotoxins plant or microbial origin serve prototypes f...