مطالعه اثر اسید هیومیک بر جوانه زنی چهار رقم گندم پاییزه (سایونز و سبلان) و بهاره (چمران و پیشتاز)

Abstract Humic acid is an organic acid without environmental destructive effects that is applied for increasing germination rate and wheat establishment. In order to evaluate effects of different levels of humic acid on germination of four wheat cultivars; an experiment was conducted in 2008 at Rese... View More