Abstract
Abstract Endosperm embryo interrelationships during germination of PINUS PINEA L. (2nd Note). — Experiments have been performed with unripe fresh seeds paralleled with unripe stored seeds (50 days of storage). The effect of storage is very similar to the effect of further permanence on the tree. It is confirmed the importance of the endosperm in the germination process already put in evidence in the 1rst note. The relationships existing between endosperm and embryo during the germination of the seed become more and more strict as the seed ripens, so that in a ripe seed the embryo develops in a normal seedling only in connection of its own endosperm. In an unripe seed the embryo is uncompletely controlled by its endosperm. Some remarks have been made about the degree of maturity of the different parts of the embryo.
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