ﺑﺮرﺳﯽ ﻋﻤﻠﮑﺮد داﻧﻪ آﻓﺘﺎﺑﮕﺮدان در ﺷﺮاﯾﻂ ﺣﺬف ﺑﺮگ و ﺣﺬف دانه

Evaluation of sunflower grain yield in grain and leaf removal condition