Weeds compete with productive crops for soil, nutrients and sunlight are therefore a major contributor to crop yield loss, which is why safer more effective herbicide products continually being developed. Digital evaluation tools automate homogenize field measurements of vital importance accelerate their development. However, the development these requires generation semantic segmentation datas...

Leaves of plants possessing the C4-dicarboxylic acid CO2fixation pathway (14) are characterized by outer mesophyll cells containing granal chloroplasts and inner bundle sheath cells which contain chloroplasts with varying degrees of grana development depending on the species. As judged by Hill activities and fluorescence yield, bundle sheath chloroplasts which contain few grana have less photos...

abstract in order to determine the critical period of weed control in euro-flour variety of sunflower (helianthus annus, l.) an experimental was conducted with a randomized complete block design with 10 treatments and three replications in islamic azad university astara-branch-agricultural college in 2006 growing season. experimental treatments were conducted in two sets, the first set included...

Serendipita vermifera (=Sebacina vermifera; isolate MAFF305830) is a mycorrhizal fungus originally isolated from the roots of an Australian orchid that we have previously shown to be beneficial in enhancing biomass yield and drought tolerance in switchgrass, an important bioenergy crop for cellulosic ethanol production in the United States. However, almost nothing is known about how this root-a...

One of the most significant yield losses in tomato ( Solanum lycopersicum L.) is due to weeds. Yellow and purple nutsedge, large crabgrass, Palmer amaranth are troublesome weed species production throughout southeastern United States. This study aimed determine impact soil steaming, plastic mulching, cover crops on suppression, height, fruit yield. The used were hairy vetch Vicia villosa ), cri...

Experiments were carried out in controlled conditions to analyze the role of metabolism of glyphosate in Digitaria insularis (sourgrass) biotypes with differential response to the herbicide.