Abnormalities in Avocado (Persea americana Mill.) Ovule Development
- 1 March 1978
- journal article
- research article
- Published by University of Chicago Press in Botanical Gazette
- Vol. 139 (1) , 81-86
- https://doi.org/10.1086/336972
Abstract
Abnormalities in P. americana ovules at blossoming are explained by demonstrating their possible origin at some stage of ovule development. Degeneration of the embryo sac at the micropylar site may occur at the 4-nucleate stage or at egg-apparatus organization, prior to or after the filiform apparatus has formed. The time of occurrence of degeneration decisively determines the appearance of the degenerate remnants. The absence of an embryo sac and the presence of a double embryo sac originate at the earliest stages of the nucellar primordium; a 3rd abnormality, compartmentalization, is assumed to originate at the megaspore tetrad stage.This publication has 1 reference indexed in Scilit:
- Floral Development, Sporogenesis, and Embryology in the Avocado, Persea americanaBotanical Gazette, 1952