Structural and physiological relationships between embryo and endosperm at the early stages of development

Abstract

In <em>Zea mays</em> different factors cause the considerable aberrations both in the ratio of the dividing cells of proembryo to the endosperm nuclei and in their interaction. These factors are: age of female flower, type of pollination, high and low temperatures, high humidity and drought, shortening of maize silk or its treatment with saturated vapours of naphtalene or poison gases.