Elsiddig, E., & 		Elamin, O.
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 Effect of vernalization period and bulb size  on bolting of onion cultivar “Texas Early Grano” grown under Gezira conditions, Sudan.
<em>Gezira Journal Of Agricultural Science, 12</em>(1).
Retrieved from <a href="http://journals.uofg.edu.sd/index.php/gjas/article/view/820" target="_new">http://journals.uofg.edu.sd/index.php/gjas/article/view/820</a>