comparison and grouping of 32 grape cultivars and genotypes by using 61 traits including; 5 phenological and vegetative characters, 41 traits related to fruit and amount of resveratrol in 15 parts of plant was done according to grape descriptor and related methods. according to the results some traits such as spikelet weight, berry color, length of peduncle, length of berry tail, weight and len...

Salinity tolerance of four grape genotypes [GharaUzum, Hosseini, AghUzum and Keshmeshi] was studied under various salinity levels (25, 50 and 100 mM NaCl). As a result, growth indices were significantly (P<0.05) reduced by salinity, whereas Cl- and Na+ contents in the plant parts were increased. Cl- accumulation exceeded than that of Na+ in all treatments. Among the genotypes studied, GharaUzum...

to evaluate the effect of row spacing and seed rate on grain yield and agronomical traits of common bean cultivars, a split factorial experiment based on the complete randomized block design with three replications was conducted at rice research institute of iran (rasht) in 2008 and 2009 cropping years. experimental treatments were row spacing in three levels of 20, 30 and 40 cm as main plot an...

screening of native cultivars and understanding of the mechanisms involved in cold hardiness in grapevines is needed to match cultivars appropriately with growing sites and aid in breeding and selecting cultivars with improved freezing tolerance. in this study cold hardiness of fifteen grapevine (vitis vinifera l.) cultivars were evaluated using tetrazolium stain test and post freezing budbreak...

thrips tabaci is one of the most important pests causing serioues damages on onion s in iran despite several chemical sprayings. to assess the population density and damage of the thips on onion, improved sefid-e-khomein genotype along with seven other iranian cultivars of onoin were planted in a rcb design with four replications in two separate experiments (sprayed and non-spray ed ) in arak f...

grapevine is among some of the most important horticultural crops in the world and as well in iran. since last century attempts have been made throughout the world to improve grapes. research in grape breeding for the purpose of improving table grape as well as raisin traits has started since 1996 in iran with crossing some selected seedless (askary, yaghoti, bidane sefid (sultana) and bidane g...