To study effects of salicylic acid (SA) treatments (0, 0.5, 1 and 2 mM) in two forms of seed priming (for 24 h) and spraying on seedling at 4-6 leaf stage an experiment was conducted on periwinkle (Catharanthus roseus Don.) with and without exposure to a mild cold stress of 8 °C (for 32 h). Seeds were sown in trays containing peat-based substrate (with 20% sandy loam field soil). Transplants of...

Almond red leaf blotch is the most important fungal disease that is caused by the fungus Polystigma amygdalinum. Symptoms depending on the cultivar almond trees can be seen almost all year. In this study the effect of 5 fungicides (Copper oxychloride  2000 µg/ml, Bordofix 2000 µg/ml, Mancozeb 200 µg/ml, Bordo Compound 10000 µg/ml, Triforin 300 µg/ml with rep.control) was examined in a randomize...

in order to study the responses of grain yield of chickpea to drought stress and application methods of nitrogen fertilizer, an experiment carried out as split-plot at campus of agriculture and natural resources, razi university, kermanshah, iran, during 2009-10 and 2010-11. the supplementary irrigation at three levels (1. without irrigation, 2. one irrigation at flowering, 3. two irrigations a...

The continuous spraying was adopted by most of spraying pesticide systems, which can not accord to the extent and the characteristic change of targets to automatically regulate dose of drugs. This way not only resulted in waste of pesticides, but also caused pollution of environment. The designing studied the variable spraying pesticide system of real-time, which based sensory technology, at th...

abstract in order to efficacy evaluation of some new herbicides to control of weeds in corn, a set of field studies were conducted in 2007 at 4 province of iran, including tehran (varamin), khuzestan, fars, and kermansh. treatments were arranged in a rcbd design with four replications. treatments consisted of ultima (nicosulfuron+nimsulfuron), lumax (mesotrion+s-metolacholor+terbuthlazine), ami...

Abstract Late wilt, a vascular disease caused by the fungus of Cephalosporium maydis , is considered one Egypt’s most severe maize threats. The purpose this study was to investigate suppressive effect resistance inducer beta-sitosterol on C. as well its involvement in reducing incidence late wilt infection under greenhouse and field conditions. In vitro studies potato dextrose yeast extract aga...

almond red leaf blotch is the most important fungal disease that is caused by the fungus polystigma amygdalinum. symptoms depending on the cultivar almond trees can be seen almost all year. in this study the effect of 5 fungicides (copper oxychloride  2000 µg/ml, bordofix 2000 µg/ml, mancozeb 200 µg/ml, bordo compound 10000 µg/ml, triforin 300 µg/ml with rep.control) was examined in a randomize...