In particular, ethylene is the aging hormone of plants. In ancient China, it has long been used in fruit ripening. For example, put unripe green fruit with ripe fruit that contains a lot of ethylene, or apples, peaches, bananas and other fruits that produce a lot of ethylene, and the green fruit will ripen very quickly. More recently, farmers have also used ethylene to ferment fruit. But another role of ethylene is to create enzymes that weaken the ability of the "release tape" to bind.
Absiotropin is a hormone that induces dormancy in order phone database to prevent seeds from germinating when the plant's growth environment is not good. It has the function of inhibiting cell division and will slow down the growth rate in winter. Plants sense less sunlight and cooler weather, and change hormones to reduce foliage, creating conditions conducive to their own growth. Conversely, if deciduous broad-leaved trees have been kept indoors with strong light and warm temperatures, it means that there are no hormonal changes, and they will not lose their leaves all year round. When leaves fall,
they leave traces, which are leaf scars. If you look closely at the leaf marks, you will find that they look like special patterns, cute animals, smiling or crying human faces. Some plant lovers are so intrigued by this that they only collect leaf scar photos. The patterns on leaf scars are actually "bundle scars", which are the ducts and sieves that move water and nutrients, that is, the traces of vascular bundles. The shape of this leaf scar varies with plant species, so it can be inferred from the leaf scar what kind of tree it is.