golestan province is one of the main tobacco growing regions in the country. tobacco streak virus (tsv) is a destructive pathogen on tobacco that has a wide host range and occurs worldwide. in order to serological detection of tsv at 13 region of golestan province, 500 infected samples belong to 8 families; chenopodiacae, amaranthaceae, fabaceae, solanaceae, malvaceae, poaceae, cucurbitaceae an...

infection status of soybean field to tobacco ringspot virus (trsv) in golestan provincein order to serological detection of tobacco ringspot virus in soybean fields of golestan province, during 2008 growing season, infected samples of dpx, gorgan3, williams, pershing and jk cultivars with leaf malformation, stunting, necrosis and terminal bud blight symptoms, were collected and tested by enzyme...

due to physiological disorder, primary bud necrosis (pbn) in grapevine is a great problem in vineyards, resulting in reduced yield. primary bud necrosis (pbn) is physiological disorder resulting in the death of the primary bud. the present study conducted through a light on this critical problem in a vineyard of cisakht region. a factorial experiment with three levels of cold temperature (-10, ...

fire blight is one of the most destructive diseases of stone and pome fruits. the causal pathogen is erwiniaamylovora, species in the family enterobacteriaceae. pears are the most susceptible, but apples, quinces and some other rosaceous plants are also vulnerable. in iran, the disease has been reported for the first time in baraghan in alborz province (zakeri & sharifnabi 1991). fire blight pr...

primary bud necrosis is a physiological disorder that adversely affects the performance and yield in the vineyards. the present study was conducted to determine the time and intensity of bud necrosis incidence as well as the related anatomical changes in the developing buds of grapevine cv. askari. a factorial experiment in a randomized complete block design of 4 replications was carried out fo...

Primary bud necrosis in grapevine is a physiological disorder observed in the compound buds. This study was conducted to investigate the anatomical changes in cv. Askari grapevine in winter dormant buds. Bud samples were taken from Askari grapevine at Sisakht vineyards, south-western of Iran. Compound buds were dissected and assessed under a binocular microscope at 10-40x magnification and a di...

primary bud necrosis in grapevine is a physiological disorder observed in the compound buds. this study was conducted to investigate the anatomical changes in cv. askari grapevine in winter dormant buds. bud samples were taken from askari grapevine at sisakht vineyards, south-western of iran. compound buds were dissected and assessed under a binocular microscope at 10-40x magnification and a di...