Do lotus flowers bloom at night?

Question 1: Does the lotus flower bloom at night? It started around 3 am, to be exact. At first, the outer perianth gradually relaxed, and the inner petals at the top of the flower bud loosened, and then micropores appeared. At about 5∶30, the orifice expanded to 2.5 ~ 3.5 cm, and closed at about 9 o'clock. After 15 ∶ 00, the flower bud is completely closed, just like an unopened flower bud. The early maturity of pistil and the large amount of mucus secreted by stigma at the early flowering stage indicate that the egg cell has matured and the stigma has the ability to accept pollen fertilization. However, in immature stamens, anthers are not cracked and buried between receptacle and perianth base. Only the anther gland is exposed at the top of the receptacle and emits a strong fragrance, which attracts bees to crawl back and forth in the flower to find pollen, and at the same time touches the pollen on the stigma for pollination. Obviously, the time interval of pistil maturity of lotus is the performance of preventing plants from selfing, which reflects the genetic heterozygosity of different varieties and is beneficial to artificial cross-pollination.

The flowering period is about 3 am, and the petals relax from outside to inside the next day, and all open at about 5: 30, and the stamens are scattered from the receptacle. At 4 o'clock, the anther cracked and vomited powder, and at 5: 30, the flowers overflowed, attracting bees to collect powder. At this time, artificial pollination and hybridization are also needed. The next day, after flowering to 10∶00, the perianth gradually closed again, and after 15∶00, the petals closed in white.

The flowers withered in the morning of the third day. With the passage of time, the flowers re-opened, the carpel stigma changed from yellowish brown to dry black, the loose pollen anthers turned dark brown and shriveled, the petal color disappeared, and the time sequence changed to 16∶00, and the petals gradually withered and fell off in the process of re-closing.

Question 2: Why do lotus flowers bloom in the morning and close at night? The main reason is: 1, which is the influence of temperature. 2. Lotus flowers usually bloom at noon and close at noon, because fresh air should be opened in the morning and closed temporarily in the afternoon to avoid sunburn. 3. The reason why lotus flowers get together at night is that after a night's hard work, they will grow in the morning and close at night due to time cutting. 4. Lotus belongs to aquatic plants and blooms in photosynthesis. The energy is low at night, let's meet!

Question 3: Why do lotus flowers bloom during the day and close at night? Look at the water lily in the pond. During the day, it opens its petals to show a charming smile. As the sun sets, it lazily closes its petals as if it had fallen asleep. There are many plants like this, as well as dandelion flowers, whose petals open during the day and close at night. Do you know that?/You know what? This is the plant sleeping. They "sleep" mainly to reduce the loss of water and heat.

Because there is no sunshine at night, plants can't make nutrients through photosynthesis, and the low temperature at night will cause unnecessary water loss and heat loss, so leaves or petals will close, just like people close their eyes and fall asleep. Scientists call the phenomenon that this plant opens the sky and closes the night "sleep exercise". Don't underestimate this phenomenon of plants, which is of great benefit to them! Can keep the nutrition and water in plants and avoid unnecessary loss.

Question 4: Why do lotus flowers bloom in the morning and close their buds at night? Plants have the habit of taking a nap just like people. It turns out that the nap of plants refers to the phenomenon that the stomata of leaves are closed and photosynthesis is obviously reduced from about 1 1 to about 2 pm. Scientists believe that plant siesta is mainly caused by the dryness and fierceness of the atmospheric environment. Hair pulling is an instinct of plants to resist drought in the long-term evolution process to reduce water loss. Details are as follows:

Plant "nap", that is, plant sleep, is called sleep exercise in plant physiology. It is both an interesting natural phenomenon and a scientific mystery that scientists have been actively exploring for decades.

Every sunny night, careful observation will reveal that some plants have undergone wonderful changes. For example, the leaves of Albizia Albizia are made up of many small feathers, which are stretched and flat during the day, but at night, countless small feathers are closed in pairs, just like mimosa touched by hands. Peanut is also a sleepy plant. Its leaves begin to close at night, which indicates that it is going to sleep. Oxalis, Chelidonium majus and Crotalaria pigmentosa are also dormant plants.

Not only the leaves of plants need sleep, but also the delicate flowers seem to need sleep more. For example, the water lily growing on the water surface, when the sun rises, the beautiful petals will slowly unfold, as if waking up from a sweet sleep; When the sun goes down, it closes its petals and goes back to sleep. Because of its obvious regularity of "waking up at night", it has gained the reputation of "water lily". All kinds of flowers have different sleeping positions: when dandelion falls asleep, all the petals stand up and close, looking like a yellow feather broom; Carrot flowers hang down like a little old man dozing off. ...

What benefits does the plant's sleep exercise bring to itself? In order to solve this mystery, scientists have carried out countless studies and experiments.

It was the famous British biologist Darwin who first discovered the sleeping movement of plants. /kloc-More than 0/00 years ago, he observed the nocturnal activities of 69 kinds of plants in the process of studying the growth behavior of plants, and found that some leaves covered with dew were not easy to move because they were bearing the weight of water droplets, and they were often more likely to be injured than other leaves that could move freely. Later, he repaired the leaves manually and got similar results. Although Darwin could not directly measure the temperature of leaves, he concluded that the sleeping exercise of @ leaves is very beneficial to plant growth, probably mainly to protect leaves from the cold at night.

@ Darwin's statement seems to have some truth, but the evidence is insufficient, so it has not attracted people's attention.

At first, the most extensive theory to explain plant sleep movement was "moonlight theory". Scientists who put forward this argument believe that the sleeping movement of leaves can make plants suffer from moonlight as little as possible. Because too much moonlight exposure may interfere with the normal photoperiod sensing mechanism of plants and damage the adaptation of plants to diurnal changes. However, it is puzzling why many tropical plants without photoperiod are also "sleepy". This point can't be explained clearly by the theory of moonlight.

Later, scientists found that the sleep movement of some plants is not controlled by temperature and light intensity, but caused by the expansion and pressure change of some cells at the base of petiole. Such as acacia, sorrel, red clover and so on. By closing the blades at night, the heat loss and water evaporation are reduced. Especially Albizia Albizia, the leaves not only close to sleep at night, but also gradually close in case of strong wind and heavy rain to prevent the young leaves from being destroyed. This protective response is an adaptation to the environment.

Scientists have put forward one viewpoint after another, but there is still no satisfactory explanation. Just when they were confused, scientist Enright put forward a new explanation after a series of interesting experiments. He uses a sensitive temperature detector to measure the temperature of many plant leaves at night. The results show that the leaf temperature in horizontal direction (without sleep exercise) is always about 65438 0℃ lower than that in vertical direction (with sleep exercise). He believes that it is this small difference of 1℃ that becomes an important factor to prevent or slow down the growth of leaves. Therefore, in the same environment, plants that can sleep exercise grow faster and have stronger survival competitiveness than other plants that can't sleep exercise.

With the deepening of research, scientists also found an interesting phenomenon about plant sleep: plants have the habit of taking a nap just like people. The time for plants to take a nap is about 1 1 until 2 pm. At this point, the stomata of the blade are closed ... >>

Question 5: When do lotus flowers usually bloom in a day? From June to August in summer, the best time for lotus is from 6: 00 to 8: 00 in the morning, when the lotus is the most vibrant. Generally, in order to ensure the need of reproduction and pollination, the lotus will open for two days. On the first morning, the flowers will be in full bloom, and at noon, the petals will all gather and still become buds. The next morning, the original gathered stamens will continue to open, and the petals of these flowers will fall off near noon, and the lotus leaves pollinated on the branches will continue to mature slowly.

Lotus: It belongs to Nymphaeaceae, which is the general name of two kinds of lotus. Also known as lotus, water hibiscus and so on. It is a perennial aquatic herb flower of lotus. Underground stems are long and thick, with long nodes and round leaves. Flowering from June to September, it is solitary at the top of the pedicel. There are many petals embedded in the receptacle hole, which are red, pink, white and purple, or have colored lines and edges. Nuts are oval and seeds are oval.

Question 6: Does the lotus flower bloom at night or when? Does Lotus still take a nap at noon? In the early hours of the morning, to be exact.

Question 7: When will the lotus blossom? Lotus flowers usually bloom in summer and June-August. ........

The best time for lotus is 6:00-8:00 in the morning, when the lotus is most energetic. Generally, in order to ensure the need of reproduction and pollination, the lotus will open for two days. On the first morning, the flowers will be in full bloom, and at noon, the petals will all gather and still become buds. The next morning, the original gathered stamens will continue to open, and the petals of these flowers will fall off near noon, and the lotus leaves pollinated on the branches will continue to mature slowly. Therefore, in the morning, you can see the most beautiful scene in the lotus pond: the bud that blooms for the first time is in bud like a girl, and the petals are slightly open, while the lotus flower that has bloomed the day before is eager to spread its petals, bringing its beauty to the extreme, so photographers can have more choices. In the afternoon, some originally open lotus flowers also turned into buds. Except for the residual lotus and lotus flowers, there were almost no blooming lotus flowers, so the true features of lotus flowers could not be photographed in the afternoon.

Question 8: When do lotus flowers usually bloom? It is one of the top ten famous flowers in China, belonging to perennial aquatic herbs of Nymphaeaceae. The flowering period is from late June to September. With the development of modern science and technology, we can also change the flowering period of lotus by controlling the light. Lotus is not only colorful and fragrant, but also adaptable. It can be widely planted in lakes, which is spectacular and can be potted in bottles. Since ancient times, precious aquatic flowers in palace gardens and private gardens have been more and more favored by people today.

Lotus is a representative of holiness and a symbol of Buddhism. Lotus leaves dust and dye, pure and flawless. Therefore, the people of China and the vast number of Buddhist believers take the noble quality of lotus leaves as their motto, "All the mud and sand are flowing, and it is clear and white", and encourage themselves to lead a totally clean life. Lotus is the symbol and messenger of friendship. In ancient China, there was a tradition of sending plums in spring and picking lotus in autumn. Since ancient times, Chinese people have regarded lotus seeds as precious food, and they are still high-grade nourishing nutrition. Many places specialize in producing lotus seeds. Lotus root is the best vegetable and preserved fruit. Lotus leaves, lotus flowers and lotus plums are also popular medicated diets in China. It can be seen that the diet culture of lotus is rich and colorful. Traditional lotus seed porridge, preserved lotus seed, lotus seed powder, lotus root slices with meat, steamed pork with lotus leaves, lotus leaf porridge and so on are numerous. In China's flower culture, lotus is the most interesting object of flower-chanting poems and the subject of flower-and-bird painting. It is the most beautiful and colorful dance material; It is also the most commonly used and beautiful pattern and shape in various architectural decoration, sculpture techniques and daily necessities. Lotus is a famous traditional flower in China.

Family pot cultivation method of lotus: the diameter of lotus pot is 60~80 cm, and the depth of pot is 40 cm. In April, the jar was moved outdoors. After Qingming, the lotus root was taken out and planted separately, with 3 knots and terminal buds at the top. Put paddy mud and pond mud containing plant ash, chicken and duck manure and horseshoe slices into a tank, and add 1/2. Plant 2 ~ 3 seeds of lotus root along the basin, so that the head and tail are connected, planted obliquely in the soil, and the tail is exposed on the soil surface. Cover with a layer of 3~5 cm river sand, and water it immediately after planting, with the depth not exceeding 3 ~ 5 cm. 10 year 10 in late October, when the leaves are dry, move the cylinder into a room not lower than 0℃, and keep moisture in the cylinder in winter.

Question 9: When is the best time for lotus to blossom? Lotus flowers bloom from June to September, opening every morning and closing at dusk.

It is best to go in the early morning when the lotus is in full bloom. First of all, the air is fresher. Second, just getting up is nothing too complicated. Third, the lotus flowers in the morning are more fragrant. . . Ha. .

Question 10: Do orchids, lotus flowers and plum blossoms bloom at night?