Deciduous trees

The deciduous trees and the evergreens

Deciduous trees are plants that, unlike evergreen ones, lose all their leaves between autumn and winter, entering a state of vegetative rest, in which the vital processes slow down considerably, and then return to vegetative activity and regain the foliage. during the spring. This type of leaves are also called deciduous, a term deriving from the Latin meaning “destined to fall”. Broad-leaved trees are broad-leaved plants and often their leaves are deciduous, while conifers, or conifers, are mostly evergreen. A famous exception to this rule is the larch, which loses its needles during the winter. Evergreen plants actually also lose their leaves throughout their life but immediately reciprocate them with new leaves.

The phenomena of abscission in botany and the detachment of leaves

In botany, abscission means a phenomenon in which a separation of a part of the plant occurs, for example of a fruit, a flower or a leaf.The leaf abscission takes place thanks to the abscisic acid that creates two cellular structures , one of protection and another of division through which the petiole will detach from the branch.In practical terms, through this process of separation the sap will no longer pass from the base of the petiole and a simple gust of wind will be enough for the leaf to fall. takes place during the cold season because the roots are unable to absorb enough water and nutrients from the soil. In this phase, before the leaves come off, they constantly change color shades, from red to yellow,this is because the chlorophyll is gradually recovered in the trunk of the plant.

There are different tree species in deciduous suitable to improve the ornament of our gardens, we think the birch, the oak, maple or pioppo.Ma the choice may very well also fall on fruit trees, which the splendor of their flowers and their hair adds the goodness of natural and healthy products. Having apricots or fresh cherries on our table will give us much greater gratification if they come from the trees in our garden.Among the fruit plants we can remember cherry, apple, chestnut, walnut, plum, apricot, peach. Of course, when choosing, we must pay attention to the climate of our area: while some species grow well even in cool areas, others need a lot of heat, let’s think for example of orange.

In the choice of the plant we must carefully evaluate, in addition to the temperature, other variables, such as the size that the plant will take on developing.To give a practical example, let’s consider the walnut. This magnificent tree develops considerably in height and width of the crown and in the future it could be annoying due to too much shade or simply due to the encumbrance of its large branches. Furthermore, we need to think carefully about where to put the plant, avoiding, for example, that the branches that will develop will invade other properties beyond our borders. We must also ensure that the type of soil in our garden is ideal for the species of plant we have chosen: it would be unpleasant if it did not grow healthy and we had to cut it after a few years.

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