the accurate estimation of reaeration rate coefficient, because of its effects on dissolved oxygen in rivers, is one of the most important initial steps of water quality management. the main goal of this paper is to evaluate the effects of reaeration rate coefficient on the river water dissolved oxygen, case study dinachal river, iran. to achieve these aims, water quality samples were collected...

The paper considers theoretical data on the mechanisms of formation reactive oxygen species (ROS) and transduction stress signals in plant cells. negative effects ROS with excessive generation are described. A method protoplast isolation a fluorescent microscopy were selected for experiments. Also, this work, comparative analysis production during hypoxia reaeration agricultural plants that dif...