Individual oak trees are non-repeatable, and so they produce acorns in order for there to be other oak trees after the original ones die.
When the oblong-ellipsoid acorn reaches maturity, it acquires a brown to reddish colour and becomes detached from the cupule, so falling to the ground.
The palisade parenchyma is interpreted as a barrier to desiccation of the acorn and may have a photosynthetic function during the formation of the fruit.
Fully ripe acorns were obtained from the ground 15 days later.
Determinations were performed in quadruplicate on batches of six acorns or seeds each time.
In addition, the family also enjoyed grazing rights on the common land and the right to collect the acorn harvest.
Apical structure that is essentially similar occurs in the physiologically mature acorns.
A marked reduction in the mean rate of water loss was recorded for intact acorns compared with those from which the pericarp had been removed.
