ﺑﺮرﺳﯽ اﺛﺮ ﺗﺮاﮐﻢ ﺑﻮﺗﻪ ﺑﺮ ﺧﺼﻮﺻﯿﺎت ﮐﻤﯽ و ﮐﯿﻔﯽ وارﯾﺘﻪ ﻫﺎی ﻧﺮﻋﻘﯿﻢ ﺗﻮﺗﻮن ﺗﯿﭗ ﺑﺎرﻟﯽ در ﻣﻨﻄﻘﻪ ارومیه

Effect of plant density on quantitative and qualitative characteristics of burley tobacco male sterility cultivars in Urmia region