Pollen grain stereostructure, viability and germination; correlation with temperature of Antirrhinum tortuosum Bosc

Abstract

Summary: The present article describes the pollen grain stereostructure (SEM), viability with fluorescein diacetate, and correlation between the temperature of 5°C and 25°C and the germination and pollen tube length of Antirrhinum tortuosum Bosc, collected in Cefalù (Palermo). We have shown that the growth of the pollen tube is related to the temperature and that the quantity of pollen showing fluorochromasia corresponds with that of the functional, germinated pollen. © 1997, Taylor & Francis Group, LLC.