Browsing by Subject "Pollen grain"

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    The pollen morphology of citrus lzmon cv. "Verna" from the Murcia Region, S.E. Spain
    (Murcia : Universidad de Murcia, Servicio de Publicaciones, 1993) Baño Breis, Francisco del; Pérez Sánchez, María Consuelo; Egea Gilabert, Catalina; Candela Castillo, María Emilia; Facultad de Biología
    One hundred and sixty pollen grains from a sarnple taken from Citrus limon cv. "Vema" have been examined using both light and scanning electron microscopy. The grains are subprolate-prolato, medium-large. isopolar and radiosymmetric. The exine is semi-tectate. foveolate tending to reticulate. In meridional view the grains are ellipsoidal. while in polar view they are angul-aperturate, either rarely. tetracolporate, pentacolporate or, hexacolporate. A lack of correlation is noted, between the larger grains and the grains with the longer colpi. The possibility is discussed that this could be a valuable character in distinguishing between different species of Citrus and also between the cultivan of C. limon.