-
Anonymous users2024-02-11Leaf senescence, ethylene promotes defoliation.
-
Anonymous users2024-02-10Birth, old age, sickness and death, natural cycle!
-
Anonymous users2024-02-09Because it is the law that the leaves sprout in the spring and fall in the fall.
-
Anonymous users2024-02-08Deciduous plants, a common noun in botany, are opposed to evergreen plants, where there is a time of year when the leaves will fall off completely, and the branches will become bare and leafless. The causes of defoliation are clearly related to the season and climate. As the temperature is generally lower in autumn and winter, the climate is drier and more prone to water shortage, resulting in the cessation of plant growth, the loss of all leaves, and the emergence of young leaves in the following year.
Except for the species that grow in tropical and some temperate regions, which are mostly evergreen, the rest of the plants are deciduous or semi-deciduous species. Semi-defoliation means that the plant is also affected by the weather in autumn and winter, which causes growth to be stunted, and its leaves are partially shed.
In general, there are more deciduous plants in the phylum Angiosperms, while in the phylum Cypress, only the genera Taxodium, Larix, Metasequoia and Glyptostrobus are deciduous in the phylum. And the ginkgo biloba of the ginkgo gate is also a deciduous tree.
The common deciduous plants in our general life include ginkgo trees, maple trees, mulberry trees, cherry trees, bauhinia trees, willow trees, acacia trees, pomegranate trees, peach trees, plum trees, camphor trees, plane trees, etc., which will naturally fall in autumn.
-
Anonymous users2024-02-07There are still many deciduous plants, such as peach trees, apricot trees, apple trees, poplars, willows, etc.
-
Anonymous users2024-02-06<> as the head of the family, he takes the children into a "special" school in nature, and is often asked all kinds of whimsical questions, such as: autumn is coming, why do trees lose their leaves
Related questions15 answers2024-05-28All living things in the world have some common characteristics (e.g., respiration), and excretion is one of them (e.g., human sweating), the way plants excrete is leaf litter, defoliation is the metabolism of plants (except for those plants that do not have real roots, stems, leaves, etc.), and leaf litter will take away excess things from plants (such as: >>>More
13 answers2024-05-28In some parts of southern Africa, it is common to see grayish-black "pebbles" in the rocky thickets. Sometimes, these "pebbles" are filled with beautiful flowers. It turned out that it was not a pebble, but a plant! >>>More
6 answers2024-05-28Aren't plants human, not animals, sleeping? Yes, plants also sleep. During the day, the leaves of the plant are all stretched out to receive the sun's rays, and at night, the leaves of the plant are gathered together, which is rest, that is, sleep. >>>More
3 answers2024-05-28Both humans and animals need to breathe, and plants need to breathe day and night. The difference is that the plant does not have obvious respiratory organs, but every cell of its parts—roots, stems, leaves, flowers, fruits, and seeds—is respiring. There is a rod-shaped or granular mitochondria in the cell, which is specialized in respiration, so plants can also breathe. >>>More
15 answers2024-05-28CO2 + H2O === (light, chlorophyll) C6H12O6 + O2 photosynthesis is the largest process on Earth in which inorganic matter is converted into organic matter (about 425 billion tons per year), and it is also the process by which solar energy is converted into chemical energy and stored in the synthesized organic matter (about megajoules per year). Only green plants (and photosynthetic bacteria) on Earth can intercept energy directly from sunlight through photosynthesis, and use it to reduce inorganic matter (carbon dioxide) to organic matter as their own nutrients. Other organisms, including humans, do not directly use solar energy, but directly or indirectly rely on the organic matter and energy provided by the photosynthesis of green plants for life activities. >>>More