walnut is a plant belongs to juglandaceae family. among 21 species, of thejuglans genus, the persian walnut (juglans regia l.) is recognized as the bestspecies. the main aim of the current research work was identification of geneticdiversity among persian walnut species in golestan province, iran. morphologicaltraits used as an approach to evaluate 96 trees which belonged to five nativepopulati...

abstractbackground and purpose nowadays, the application of antioxidants and plant growth regulators has discussed for decreasing the negative effect of different stresses. ascorbic acid and sodium nitroprusside have substance caused witch the resistance to biotic and abiotic stresses. to evaluate the effect of ascorbic acid and sodium nitroprusside foliar application on some traits of safflowe...

The evolution of specific seed traits in scatter-hoarded tree species often has been attributed to granivore foraging behavior. However, the degree to which foraging investments and seed traits correlate with phylogenetic relationships among trees remains unexplored. We presented seeds of 23 different hardwood tree species (families Betulaceae, Fagaceae, Juglandaceae) to eastern gray squirrels ...

soil salinity is a serious problem in south khouzestan province. this study was conducted in shawoor agricultural research station, north of the city of ahwaz, on silty-clay soil with 8 dsm-1 salinity during 2006 and 2007. a completely randomized block design arranged in split plots with three replications was used. the plots (planting methods) were: broadcasting + disk harrow (p1), broadcastin...