What happens to plants in an environment where there is not enough light

In an environment where there is not enough light, plants respirate.

Respiration rate is affected by the following internal and external factors.

Internal factors The respiration rate of different plants, different ages of the same plant, or different tissues and organs can vary greatly. Plants or parts that are generally vigorous and have a strong synthesis process have a higher respiration rate, while slow-growing plants or parts with weak metabolism have a lower respiration rate. This is mainly due to the fact that the ATP, NADH, NADPH and intermediate products formed in the respiration of the former are rapidly used in the biosynthesis process and the formation of new cells, thus promoting the respiration.

In addition, because there are more mitochondria in young and metabolic tissues, the opposite is true for senescent tissues. The dormant buds of dormant seeds, roots, tubers or trees have weak metabolism and low respiration rates.

External factors include temperature, O2 and CO2 concentrations, and light.

Temperature. It can significantly affect the rate of respiration in plants. Because the rate of enzyme reactions closely related to the respiration process increases with temperature within a certain range.

However, too high a temperature can cause enzyme denaturation and inactivation. Therefore, respiration has its highest, most suitable and lowest temperature range, and when it is lower than the minimum temperature and higher than the maximum temperature, the plant respiration stops. The optimal temperature refers to the temperature at which the plant can maintain a stable maximum respiration rate, which is generally about 25 30 in temperate plants.

Different plants have different respiration responses to temperature, and overwintering crops such as rape and winter wheat can still measure the respiration rate at about 0. Spring-sown crops, on the other hand, cannot withstand low temperatures. In addition, the effect of temperature on respiration is linked to the conversion of substances, such as the conversion of starch to sugar by low temperature, which can increase the respiratory substrate**, thereby increasing the respiration rate. If the potato tuber is stored below 10 for a period of time to form more sugar, and then moved to 25 or 30 for storage, it will shrink due to excessive respiratory consumption.

O2 and CO2 concentrations. Under anoxic conditions, NaDH and FADH2 are inhibited by the dehydrogenation of the respiratory chain, which hinders the oxidation process in the tricarboxylic acid cycle, so ethanol fermentation often accounts for a large proportion. Ethanol is toxic to plants, and the intermediate products of ATP and respiration will also be insufficient, affecting biosynthesis.

When field crops are waterlogged in the field or the soil is compacted, the root system will be stunted due to insufficient oxygen supply affecting respiration. When the CO2 concentration produced by respiration is higher than 5%, it can significantly inhibit respiration. When the fruit is stored, reducing the oxygen content in the air or increasing the carbon dioxide concentration can inhibit respiration and help prolong the storage period, this storage method is called modified atmosphere.

Illumination. The effect on respiration is indirect. Light increases the temperature and promotes respiration; Under strong light, more photosynthetic products are formed, so that the respiratory substrate is sufficient, and it can also promote respiration and facilitate growth.

The conditions of poor light and high temperature are not conducive to photosynthesis and are conducive to respiration, and crops will be consumed too much due to respiration, thereby reducing the accumulation of photosynthetic products and causing overgrowth. Therefore, in cultivation, attention should be paid to sowing density, improve the light and ventilation conditions in the field, so that the photosynthesis and respiration of crops can be coordinated to facilitate the growth and development of crops.

Can plants photosynthesize under light?

The light gradually diminishes when the plants doPhotosynthesisand exhalation: Photosynthesis inhibits respiration, usually with photosynthesis occurringPortuguese Sweets, in order to have glucose for respiration to break down.

During the day, when the light is strong, the photosynthesis of plants is always at carbon dioxide.

Hunger state. Not only is all the carbon dioxide produced by plants respiring on their own for photosynthesis, but they also absorb carbon dioxide from the surrounding air.

When the light is reduced, the carbon dioxide absorbed by photosynthesis gradually decreases until it is the same amount of carbon dioxide as respiration, at which point the plant neither absorbs carbon dioxide from the outside nor releases carbon dioxide to the outside world.

Turns solar energy into chemical energy

While assimilating inorganic carbides, plants convert solar energy into chemical energy, which is stored in the organic compounds formed. The solar energy assimilated by photosynthesis is about 10 times the amount of energy required by humans every year. The chemical energy stored in organic matter, in addition to the use of the plant itself and all heterotrophs, is more important for the energy of human nutrition and activity**, so it can be said that photosynthesis provides the main energy source today.

The Green Plant's Repatriation is a giant energy conversion station.

Plants that do not need light include pothos, white palm, spider plant, tiger piran, ivy, watercress green, happy tree, millennium wood, etc. These green plants are relatively shade-tolerant plants, and they also have a high ornamental and purifying ability, and the most important thing is that they are particularly easy to take care of, and they do not need to spend too much time and energy when cultivating.

Pothos. Pothos is a very classic indoor foliage plant that can be soil-grown or hydroponic. Pothos has a very good air purification ability,Shade tolerant, like a warm and humid environment, should pay attention to heat preservation in winter.

White palm. Both Anthurium and Anthurium are bothA rare indoor flowering plantThe flowers of the Buddha flame bud are very fresh and beautiful. White palm is very easy to maintain, prefers a warm and humid environment, is not cold-tolerant, and should be kept warm in winter.

Spider plant. Spider plant isVery shade-tolerant indoor potted plants, with very good air purification ability, farming is very simple. Spider plants like to grow in cool and astigmatistic places, and the leaf tips are prone to dry up under strong light.

Therefore, it is very suitable for our houses and trousers that are not very well lit to raise spider plants, the key is that the spider plants are indeed very beautiful, and the four seasons are very beautiful!

Tiger Piran. Tiger Piran is very shade-tolerant, and has a good air purification ability, is a very good lazy plant. Moreover, the tiger pill orchid is drought tolerant and barren, but not cold-tolerant, so when breeding tiger pill orchid, the potting soil should be kept dry as much as possible and watered less.

Ivy. Ivy is actually a green plant that prefers semi-shady environments. If it is cultivated in a place with strong light, it can sometimes cause poor growth, because it is more likely to cause burns or even growth arrest under strong light.

Therefore, it is best to breed in places where the light is not suitable for the house. Ivy can be farmedIn the study, living room and other placesAs long as there is some scattered light, it can grow very purely.

Watercress green. Watercress green, also known as jasper, is a common decorative green plant placed on the desk, which is very beautiful and green all year round. Watercress green also does not like strong light, and can grow very well in the shade of scattered light, is a good lazy plant.

The Tree of Happiness. The Happiness Tree is a plant with a beautiful meaningIt is also a shade-tolerant plant。It can grow verdant in all seasons in a semi-shady environment.

So the happiness tree fitsPut it in the living room or balcony for maintenanceThe small happiness tree can also be placed in the study!

Millennial wood. Millennial wood is one of the more beautiful species in the genus Dracaena, and there are also color-leaved varieties. Millennial wood has a very good air purification abilityVery shade tolerant, usually do not need to take care of it, with a good ornamentality.

1. The minimum amount of light should be above the compensation point of light, and the way to increase the light of plants is to use light to supplement the light.

2. The illumination of the 1400 watt electric lamp at a distance of 2 meters from the plant is the same as that of daylight, and the illumination distance is shortened, and the light intensity used can be reduced according to the inverse law of the square of the distance from the plant. The use of 100 to 300 watts of white fluorescent trouser light can also achieve certain light conditions, with lead to meet the growth requirements of plants;

3. 10% to 12% of incandescent light is used as light energy, and the rest is heat energy.

Sunflower: The flower disc changes as the sun moves. Mimosa:

The temperature is high or the blades will close when touched. Wood Hibiscus: The color of the flower changes depending on the temperature.

Water lilies: When there is enough light, the flowers open, and when the light disappears, the flowers close. Morning Glory:

Flowers change depending on temperature and light.

1. Sunflowers

The flower disc of the sunflower changes significantly, moving with the movement of the sun, bending to the east in the early morning, upright and upward at noon, and bending to the west in the evening when the sun sets, and the plant can only thrive in a sunny place.

2. Mimosa

Mimosa will change with the ambient temperature, early morning and evening when the temperature is suitable, the leaves will stretch outward, close at noon when the temperature is high and the light is strong, and will close quickly when touched, so it is called mimosa, and it is suitable for growing in warm, moist places.

3. Wood hibiscus

The flower color of the hibiscus changes according to the change of temperature, the color of the flowers is white in the cool morning, the flowers change from white to light red when the temperature gradually rises at noon, and dark red when the temperature reaches its peak.

4. Water lilies

Unlike other flowers, the petals open when there is enough light, and when the sun sets, the flowers will close, and they will bloom again the next day as the sun rises, which is suitable for growing in a sunny and warm environment.

5. Morning glory

The flowers of morning glory also change with temperature and light, and with the gradual increase of light and temperature, the flowers will open into a trumpet shape when they absorb enough nutrients, and the petals will close when the temperature is too high at noon, and generally only bloom in the morning and when the morning is slightly cooler.

No different. The light spectrum of the lights you mentioned is very broad, and it is the result of many wavelengths of light mixed together. In the final analysis, photosynthesis is based on the absorption of light of a certain wavelength by chlorophyll, which in turn initiates a chemical reaction.

Therefore, as long as there is a suitable wavelength of light and a certain light intensity is guaranteed, plants can photosynthesize under light. The best light to initiate a chlorophyll reaction is red light, followed by blue-violet light. As long as it matches this wavelength of light, photosynthesis can be triggered at a certain light intensity.

Even if it is light that does not produce heat, such as energy-saving lamps and cold lights, the white light can be used for plant photosynthesis. "Why can't green light be useless to plants! "That's wrong, green light is only the worst effect on photosynthesis, it's just a property of chloroplasts.

There are also not all plants whose leaves are green in color, and there are purple ones, which are the ones that have the weakest photosynthesis effect on purple light.

The colors are different, the sunlight has seven colors, while the other lights have only a single color! Green light is useless for plants!