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Also known as water king, black algae, perennial submerged herb. Stems branched; impeller, linear, thin, sessile; The male flowers float on the surface of the water, and the female flowers stick out of the water; Fruit linear, smooth or noduled, seed oblong; Flowering and fruiting period 8 October. Alkaline-resistant, temperature-loving and heat-resistant, can not grow in winter, germinates in early spring.
Vegetative bodies have a strong branching ability, and branches and adventitious roots can be produced on the stem nodes at any height of the stem. The biomass was distributed in an inverted triangle, with higher growth points, forming a middle and upper canopy, and high light compensation points. Vegetative reproduction is very strong and can be propagated by broken branches.
Stain-resistant, medium purification capacity. It is mostly distributed in sediment or sediment containing a lot of humus, and is commonly found in various ponds and marshes. It can be used as bait, feed and green manure.
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Black algae hydrilla varticillata (L. f.Royle submerged herb, winter bud propagation.
The stems are multi-branched and up to 2 meters long. Leaves membranous, (2) 3-8 whorls, linear or linear-oblong, 10-15 mm long, 1-3 mm wide, sessile, apex acutely pointed, margins finely serrated, with small reddish-brown spots on both sides. The flowers are small, dioecious, the male flowers are solitary in the leaf axils, nearly sessile, spherical, wrapped in the thorn-like Buddha flame bracts, sepals 3, stamens 3, detached from the leaf axils after maturity, float to the surface, rupture and release pollen; Female flowers solitary in leaf axils, enclosed in 2-toothed tubular bracts, open out of the water, sepals 3, convex, petals 3, about 3 mm long, narrower than sepals, slightly shorter or equal in length, ovary lower, cylindrical, 1-chambered, stigma 3.
The fruit is linear, with 1-3 seeds; The seed coat cells are square and grid-shaped. The flowering period is from July to August, and the fruiting period is August. Born in blisters, rivers and lakes.
It is distributed in China and Europe, Asia, Africa and Oceania.
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Black algae belongs to the perennial submerged plant of the turtle family, likes to grow in a warm and humid environment, is not cold-tolerant, there are many plantings in southern China, there are many branches on the stem of black algae, and its plant texture is very brittle. Black algae blooms in May to October every year, and its flowers have a certain ornamental value, when it also bears fruit.
The stem of the black algae is elongated, there are many branches on its stem, its stem is mostly cylindrical, the surface of the black algae plant has many fine ribbed paths that grow longitudinally, and its plant texture is very brittle. Black algae blooms in May and October every year, and its flowers are monoecious, dioecious, and have a certain ornamental nature.
Black algae this aquatic plant likes to grow in fresh water, is distributed in all parts of our country, although it likes to grow in warm areas, but also relatively cold-tolerant, in the rivers and lakes in the northern region can also be seen, the best growth temperature is between 15 and 25, can be changed by cuttings and divides to reproduce.
The annual growth period of black algae is between April and August, because the temperature during this time is more suitable for the growth of black algae, if it is raised in the aquarium, then it is only necessary to ensure that there is a warm environment, and relatively clean water quality, in the vigorous growth stage of black algae, you can also use some nitrogen fertilizer appropriately, which can promote the growth and development of black algae branches and leaves.
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Does black algae belong to algae plants.
Black algae have the differentiation of roots, stems, and leaves, and are not actually algae. It's just the name of the black algae, more like a leak-tolerant algae plant. It generally prefers to grow in moist and warm places and reproduces by seeds or cuttings, whereas ferns generally reproduce by spores, so black algae does not belong to the category of ferns.
What kind of plant does black algae belong to in the next spring?
As angiosperms, black algae have seeds. The seeds are dark brown, and the ends of the seeds will be very pointed, so the black algae is a seed plant. Bryophytes usually live in moist places, whereas black algae are submerged plants, so black algae are not bryophytes.
In addition, black algae also bloom, usually from May to October each year. The color of the flowers is usually white or pink.
What does black algae look like.
Black algae generally do not have no roots, only stems and leaves. The stems of the black algae will grow, and there will be branches on the stems with longitudinal ridges on the surface. When the black algae are dormant, the buds are oval. The leaves of black algae are generally long with purple or black spots on the surface, sharp tops, and serrated edges.
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Black algae growth conditions.
Black algae prefer a warm and sunny environment. If the environment is dark, the color of the plant will become lighter and growth will be inhibited. It is best to receive astigmatism for 2-3 hours a day, with some cold tolerance. The suitable growing temperature is between 15 and 30, and the overwintering temperature is not less than 4.
How to raise black algae.
Black algae is suitable for growing in warm and moist environments. Good adaptability and strong regenerative ability. Sowing can be done in ponds, ditches, and large water surfaces with good sunlight. If properly fertilized to supplement its nutritional needs, the cherry blossom will grow well.
Black algae watering. Black algae has a high value for viewing ridges and is also a material that can be used to decorate aquariums. However, during the maintenance period, you need to change the water frequently, more in the summer, and less in the winter when the temperature is low. Scale.
Black algae fertilization. If the black algae maintains more nutrients in the water, it can be left without fertilization. If the water is clear, the water quality is thinner, and there are fewer nutrients in the water, then you can drop some nutrient solution slightly.
Black algae pest control.
Black algae are often threatened by diseases such as nematodes, leaf rollers, biting insects, etc. Harmful to the health of black algae. In case of insect infestation, it can be directly killed with drugs. In severe cases, it can be killed twice.
Black algae home culture.
The sowing period for black algae is from December to March of the following year. It is best to sow seeds when the weather is clear. You can fill a container with 10 cm of fresh water and insert the seeds into the soil or mix them with silt to sow the seeds.
When the water temperature is maintained at 15 degrees, germination begins in 5-10 days, and the emergence rate can reach 95%.
Precautions for the maintenance of black algae.
When planting black algae, it is important to control the water depth. At the beginning of maintenance, the water depth will be about 20cm. As the temperature gradually increases, its growth accelerates. Then, the water level will gradually rise. It is best to keep no or less herbivorous fish in the container for maintaining black algae, so as not to affect its growth.
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1. Cuttings and propagation at the tip of the branches: Black algae is a "false root tip" plant, only whiskers adventitious roots, in April and August of each year, in the vegetative growth stage, the tip of the branch can take root after 3 days of cutting, forming a new plant.
2. Transplanting and propagation of vegetative bodies: generally before and after the valley rain, the pond water is drained, leaving 10 15 cm of bottom mud, and the black algae that grows to 15 cm is cut into a section of about 8 cm long, and each mu is evenly splashed according to 30 50 kg, and the stem node is partially immersed in the mud, and then the pond water is added to 15 cm deep. After about 20 days, the whole pond is covered with new black algae, and the water can be added up to 30 cm, and then the water can be gradually deepened so that the aquatic plants do not come out of the water.
At the beginning of transplantation, the water should be kept fresh, not dry, and chemical fertilizers should not be used. If there is a moss breeding, it can be killed with a mossicide drug.
3. Planting of bud buds: December to March of the following year is the sowing period of black algae buds of rothoriform, should be selected to sow on sunny days, add 10 cm of new water to the pool water before sowing, and use 500 1000 grams of seeds per mu, and insert 3 5 grains of buds into the mud according to the row and plant spacing of 50 cm when sowing, or mix mud and sand to spread. When the water temperature rises to 15, germination begins in 5-10 days, and the emergence rate can reach 95.
4. Precautions: selection of bud buds: bud buds are 1 cm long, cm in diameter, 3500 4000 grains per 500 grams, and the bud buds are hard and full, and they are green onion.
Before sowing, polyethylene mesh or white film fence should be used to separate the bud buds from the river crabs, and when the buds germinate and grow, and the aquatic plants are full of ponds, remove the fence facilities and let the river crabs enter the grass. The number of crabs per mu should be less than 1,000. Planting of the whole plant:
In May and August of each year, the black algae in the natural water filial piety field has grown, up to 40 60 cm, and 100 200 kg of grass is placed in the crab pond per mu at a time, some of which are directly fed by crabs, and some of them are rooted in mud to survive. In terms of water quality management, the water depth during the day and the shallow water at night reduce the amount of grass eaten by river crabs and promote the formation of fibrous roots.
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1.Introduce.
Black algae is a single-celled or multicellular algae organism, also known as dark algae, which belongs to a group of organisms under the phylum Brown Algae. They live in both freshwater and seawater, and usually grow in deep-sea environments or in warm oceans, as well as at the bottom of some water sources. The cells of black algae are large and come in a variety of shapes.
Unlike other algae, black algae do not require sunlight to grow and instead use small organs within the cytoplasm for photosynthesis.
2.Habits.
Black algae are mainly found in deep-sea environments and warm oceans, as well as at the bottom of some water sources. They can grow on top of many different types of substrates, such as rock, gravel, silt, and gravel. They typically form thicker colonies in order to absorb nutrients and water more efficiently.
Black algae have a long life cycle that may last several years, with significant changes and evolution along the way.
3.Features.
The cells of black algae are larger, generally 50 microns to 10 millimeters, and have different shapes, such as spherical, oval, fusiform, etc. Their cell walls are usually stiffer and usually consist of larger fibers. There are many different types of organelles inside the cells of black algae like plastisomes, chloroplasts, and nucleus, among others.
Black algae do not rely on sunlight in their growth like other algae, but instead use small internal organs for photosynthesis.
4.Function.
Black algae play a vital role in the marine ecosystem, being able to absorb and transform nutrients from seawater, which is essential for maintaining the ecological balance of the marine environment. There are many beneficial substances in the cells of black algae, such as fucoidan, subtilisol, and some potential antitumor active substances. Therefore, black algae is widely used in medicine, food, and feed.
In addition, black algae can also be used in the production of cosmetics, specialty chemicals, and environmental treatment.
5.Classification of black algae.
According to morphological characteristics and reproductive patterns, black algae can be divided into two categories: unicellular black algae and multicellular black algae. Unicellular black algae are generally round, oval, or oval in shape and are smaller in size. Multicellular black algae usually form colonies and individuals are connected to each other and are able to share nutrients.
Taxonomicly, black algae and other algae belong to the plant kingdom.
6.Application of black algae.
With the in-depth understanding of black algae, a variety of applications have been discovered. As a natural gelling agent, fucoidan is widely used in food and medicine. Subtilisanol has good anti-tumor activity and is regarded as a promising small molecule inhibitor of cancer.
At the same time, black algae can also be used in cosmetics, special chemicals and environmental treatment.
7.Conclusion.
In summary, black algae is a unicellular or multicellular algae organism that lives in deep-sea environments and warm oceans and also has many important roles. We believe that with the deepening of the research on black algae, people will be able to explore more applications of black algae and bring more benefits to human production and life.
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Melanophyte is a perennial submerged herb of the angiosperm family Turtle family, it is a higher plant, it likes to grow in a sunny environment, and it is best to place the plant outdoors when planting. Black algae grows quickly, so it is necessary to control the amount when planting to prevent the plant from growing and pruning properly during the planting process.
Many people don't know that black algae is a higher plant, black algae is a higher plant, it is a perennial submerged herb of the angiosperm family Turtle family Black algae is a perennial submerged herbaceous plant, which mostly grows in stable fresh water. Black algae is mostly distributed in tropical and temperate regions of China, which likes temperature but is not cold-tolerant, and its leaves and flowers have certain ornamental value.
Black algae is often planted in the aquarium as a water body greening, it has high requirements for temperature, it is best to control the temperature at about 15 30 degrees when planting, and the temperature can not be lower than 4 degrees during the planting process. Black algae is a light-loving plant, it prefers to grow in a well-lit environment, and it is best to keep the plant outdoors when planting.
Black algae grows quickly and reproduces quickly, so it is necessary to control the amount of plants when planting to prevent the plants from growing too fast and growing too long, which will affect the aesthetics. Black algae will bloom at a certain time, its flowers are small, the flower color is very rich, it has a certain ornamental value, it will also bear fruit in the flowers.
In addition to being ornamental, black algae also has a certain use value, its whole grass can be used as feed for poultry after processing, and can also be used as green manure to raise flowers, and the nutrients for flowers are abundant with black algae. Orchids can be raised with black algae, but black algae can not be used all when raising flowers, and black algae can only be added appropriately to the soil.
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