Acta Societatis Botanicorum Poloniae (Jan 2014)
Pollen dimorphism and androgenesis in Hordeum vulgare
Abstract
Dimorphism of binucleate pollen grains of Hordeum vulgare has been confirmed. It is considered, however, in contrast to the accepted opinions, that some of the large pollen grains with dense cytoplasm lying close to the tapetum are the outset forms for embryoids, and not the small pollen grains with scarce cytoplasm lying in the pollen sac centre.