How much light does Chinese orchid cultivation need and what effects does it have

Light is the driving force behind carbon assimilation in Chinese orchid plants. The leaf surface of Chinese orchids absorbs radiant energy emitted by the sun to carry out photosynthesis, then reduces the carbon dioxide absorbed from the atmosphere to produce a fixation reaction, producing high-energy carbohydrates that are stored in the cells of the Chinese orchid plant body, and through respiration are released as energy in an oxidized and decomposed form. This is supplied for Chinese orchids to maintain their own life and to reproduce the next generation, or is utilized by them. Under light intensity suitable for Chinese orchid growth, photosynthesis in the Chinese orchid itself increases in direct proportion to the plant's growth state. The stronger the orchid plant's growth vigor, the more robust the root system and leaf tissues and other organizational parts, the higher the photosynthetic capacity, and the more abundant nutrients produced to supply the various tissue parts of the orchid plant for growth and division; the growth rate of newly grown orchid plants also increases accordingly. Likewise, the stem and leaf contents are fuller, the plant vigor is stronger and more aesthetically pleasing, the root system is more numerous and thicker, and the germination capacity of meristematic tissues is not restricted. The growth of orchid roots also benefits from the ample nutrient content in the orchid plant body; besides supplying itself and the continued growth of stems and leaves, it is sufficient to supply what the root mass needs for growth and development. When orchid leaves absorb sufficient light, the orchid roots grow extremely vigorously and thickly, absorbing large amounts of water and nutrients to supply stem and leaf growth. When the light supplied exceeds the critical point required for Chinese orchid growth, that is, when the light intensity is too strong and the amount too great, the chlorophyll in the leaves is easily damaged by strong light, and marginal and tip scorching appears on the leaf tissues, along with chlorophyll decomposition and whitening of the leaf surface. When light intensity is relatively strong, transpiration from the leaf surface increases in order to regulate leaf temperature. Because transpiration from the leaf surface carries away large amounts of water from within the leaves, the root tissue, in order for the orchid to support its plant body and maintain a living state, must absorb more water from the medium and the atmosphere, to prevent the Chinese orchid plant body from wilting again due to excessive light intensity and overly rapid transpiration rates causing an imbalance in water absorption. Generally, when the light supply is abundant and the intensity exceeds its critical point, orchid plants that grow long-term in this environment have leaves easily damaged by strong light, photosynthesis and photosynthetic products both decrease, and transpiration and nutrient consumption also increase correspondingly; water in the orchid body and medium is also lost more quickly, causing water shortage. The amount of nutrients produced by the leaf tissues is relatively small, only enough to supply the plant body to maintain life, with no remaining nutrients to supply the newly grown leaves, buds, and root system for further elongation and division. Moreover, under strong light, temperature rises accordingly; because transpiration rates increase, water within the orchid body is lost in large amounts. The water-absorbing action of the root system also stops its water-absorbing capacity due to excessively high temperature, and under an imbalance between water supply and demand in the orchid plant, root elongation and stem and leaf growth and development are easily restricted. In summer, the season of strong light and high temperature, when the Chinese orchid plant body receives a large amount of solar radiant energy, the orchid plant, due to strong light and high temperature, transpires water quickly and in large amounts.CultivationIn order to supply the orchid plant with sufficient water and prevent the orchid plant from wilting due to water shortage and thus affecting its growth, the manager will supply water in large amounts and many times, causing the medium to become acidified. Also, because leaching by water causes certain nutrient elements to be lost, the growing environment of the orchid roots changes abruptly, the functional capacity of the root tissues stalls, and water absorption becomes related to transpiration. At this point the root activity is lost, leaf productivity is disrupted, leaf tips very easily become scorched, and the root system more easily stops functioning and rots, further seriously affecting its quality and yield. Therefore, in the season of strong light and high temperature,Cultivationthe manager should pay more attention to whether the light supply is appropriate. When the intensity of sunlight shining on the orchid plant has exceeded its growth critical point, measures should be taken to install shading facilities to reduce the irradiation intensity, and appropriately install humidifiers to raise the humidity in the air. Only then is it favorable to the growth of the orchid plant. Conversely, for Chinese orchids grown long-term in an environment with insufficient light supply, the nutrient production and supply capacity from photosynthesis will be insufficient to meet the needs of Chinese orchid growth and development. The nutrients necessary for root elongation cannot be obtained from the orchid plant body to supply its root development, and the root growth and elongation capacity will be obviously impaired. Moreover, for Chinese orchids grown under insufficient light, the amount of water transpired by the plant body decreases, and evaporation from the surface of the orchid pot medium also decreases; correspondingly, the water and nutrient elements necessary for growth absorbed by the orchid roots likewise decrease. At this pointCultivationif the manager supplies too much water, the water easily fills the pores in the orchid pot medium and cannot drain away for a long time, oxygen diffusion capacity is hindered, fresh air cannot enter from outside for gas exchange, anaerobic microorganisms easily breed and produce methane and some foul odors that affect root growth. Therefore, Chinese orchids grown long-term under insufficient light will inevitably have small and fine root development, and the root mass elongation rate will also be extremely slow. Because the growth of the orchid plant is limited by insufficient light, the stems and leaves are soft and slender, with little content, poor plant vigor, poor flowering rate, and insufficient anthocyanin accumulation, making the flower colors less vivid and the germination rate relatively low. Newly grown buds are correspondingly not very plump, and because photosynthesis capacity is reduced, the number of leaves cannot provide large amounts of nutrients, indirectly affecting the quality and yield of Chinese orchids. In seasons with insufficient light irradiation, in order to promote the growth of Chinese orchids and improve their quality and yield, cultivation managers should install plant growth lights to supplement their heat energy. High-efficiency plant growth lamp tubes are now available on the market, and multiple different functions have been developed specifically for the plant physiology of Chinese orchids; readers can make favorable choices according to their needs. Potassium fertilizer should also be applied to help photosynthesis produce the energy necessary for growth. This enables Chinese orchids to produce more nutrients, so that root growth and new bud growth receive sufficient supply; in this way the orchid plants you grow can grow quickly and in a balanced manner.