catalogue
Basic introduction
Appearance characteristics
Advantages and characteristics
Related varieties
Habitual characteristics
Type change
Autumn flame red maple October brilliant sunset red maple
Development situation
Seedling raising method
Basic introduction of development prospect
Appearance characteristics
Advantages and characteristics
Related varieties
Habitual characteristics
Type change
Autumn flame red maple October brilliant sunset red maple
Development situation
Seedling raising method
development prospect
Expand and edit the basic introduction of this paragraph.
American improved red maple is not a strict plant variety name. This name first appeared in the publicity materials of Qingdao Yifeng Environmental Protection Technology Co., Ltd., and it was equivalent to American red maple seed sowing from the beginning. Since it is said to be' improved' and easy to be accepted, we should understand the improvement of American red maple as the improvement of American red maple, that is, those rare horticultural varieties! Edit the shape characteristics of this paragraph.
Strong cold resistance, resistant to -35℃, suitable for neutral and slightly acidic or slightly alkaline soil. The growth rate is relatively fast, with an average annual growth of 80cm- 120cm (depending on soil and water fertility). It blooms in spring with red spikes and pale red pinnate seeds. Palm-shaped leaves, about 5- 10cm long, light red buds in spring, green in summer, bright red in autumn, long coloring period and late defoliation. The trunk is straight, dark brown, hard and good in texture. Advantages and characteristics of editing this paragraph
Healthy American improved red maple is basically unaffected by pests and diseases, and its life span is about 100 years. The improved red maple series needs asexual propagation (such as tissue culture, grafting and cutting). American improved red maple is the first choice for road greening in developed countries, and Japan and South Korea import a lot from the United States every year. From the biological point of view, most Korean maple trees are improved red maple introduced from the United States, and this improved red maple is an excellent variety made by crossing North American red maple and China red maple and genetically improving them. In this way, South Korea's eye-catching red maple, originally has the "blood" of the United States and China. This tree species is the best choice for leisure parks, living quarters, hospitals and road greening and beautification. The improved variety of American red maple is very eye-catching in autumn, and its leaves are fluorescent and subversive. Pure varieties can ensure its bright autumn colors. After trial planting, it is proved that the varieties with the best red leaf effect are' Sunset Red',' October Guanghua',' Autumn Flame',' Autumn Acer',' Sun Valley',' Wine Red' and' Summer Red'. Many domestic growers can't see the beautiful red leaves of American red maple. In fact, they mistake ordinary seed seedlings for improved red maple.
American improved red maple
Edit the relevant varieties in this paragraph.
American red maple scientific name: red maple alias: northern red maple, North American red maple, swamp maple, Canadian red maple, red maple, scarlet maple. Acer of Aceraceae. Deciduous trees Main features: plant height up to 30M, crown width 10M, palmately 3-5-lobed leaves, leaf length 10CM, bright green surface, white back and some white fluff. In spring, the new leaves are red, which is in harmony with the string of red flowers. In summer, the branches and leaves become turbid; In autumn, the leaves are bright red and last for a long time. The tree stands upright with a round crown. Small red flowers bloom in spring, and the fruit has wings and is red. This tree species grows rapidly, usually reaching the height of 1 m a year, DBH 2cm. Edit the customary characteristics of this paragraph
Strong adaptability, cold resistance, drought resistance and moisture resistance. The climates in Beijing, Hebei, Shandong, Liaoning, Jilin, Heilongjiang, Henan, Shaanxi, Anhui, Jiangsu, Shanghai, Zhejiang, Jiangxi, Hunan, Hubei, Yunnan, Sichuan, Xinjiang and other places in China are quite suitable, and American red maple has a good autumn performance in most areas for several years, especially in acidic to neutral soil. Because this kind of red maple is not actually an improved red maple, the collection place and method of its seeds and the variety characteristics of its parent tree species are uncertain, and its breeding and planting characteristics in China are very different, with a large proportion of poor discoloration and consistency, and it is sensitive to the environmental temperature and humidity and soil pH in the planting area, and some trees do not turn red or even prematurely decline. At present, this tree species is widely distributed in Shandong Peninsula and Dalian, because they were popularized early and spread widely in those two areas. In Shandong Peninsula, the improved American red maple is interpreted as a seedling sown by seeds: in areas dominated by the United States, plant seeds with good growth speed and resistance are selected, domesticated and re-selected, and then introduced into China as seeds for propagation and domestication in China. There are seedlings for the market, and the price is low, also known as American autumn red maple. This variety is superior to North American red maple in all aspects, with good growth speed and resistance, but the consistency of discoloration is not strong, and the time difference is nearly 10 day. The color is mainly red, with occasional yellow and purple and a small number of unchanged leaves, and the overall color is rich when densely planted. This tree species was introduced to China around 2003. At present, the largest seedlings with DBH of 5- 12CM on the market are mostly concentrated in the northern region. Finally, some people may think that the improved red maple is not American red maple. Actually, it's not like this. American improved Acer truncatum, belonging to Aceraceae, is the general name of horticultural varieties selected from Acer truncatum and Acer truncatum. It has a series of improved varieties, which are tall deciduous trees with a height of 18-25M and an oval crown with a crown width of 650. Strong cold resistance, resistant to -35℃, suitable for neutral and slightly acidic or slightly alkaline soil. The growth rate is relatively fast, with an average annual growth of 80cm- 120cm (depending on soil and water fertility). It blooms in spring with red spikes and pale red pinnate seeds. Palm-shaped leaves, about 5- 10cm long, light red buds in spring, green in summer, bright red in autumn, long coloring period and late defoliation. The trunk is straight, dark brown, hard and good in texture. Healthy American improved red maple is basically unaffected by pests and diseases, and its life span is about 100 years. The improved red maple series needs asexual propagation (such as tissue culture, grafting, cutting, etc. ). American improved red maple is the first choice for road greening in developed countries, and Japan and South Korea import a lot from the United States every year. This tree species is the best choice for leisure parks, living quarters, hospitals and road greening and beautification.
American improved red maple
In the process of cultivation, American improved red maple has formed many excellent varieties with different performance types. The improved red maple introduced early in China mainly includes American autumn flame red maple, American sunset red maple and American October Qiu Feng, each with its own characteristics. It can give people a brand-new visual impact in autumn. There are several excellent varieties in the improved red maple, mainly including:
Red maple in autumn flame
The main color of autumn leaves is slightly dark red, the tree shape is beautiful and consistent, and the color change is strong, which is the most promising tree species in the market at present. This tree species does not bear seeds and has no reproductive ability, so it needs asexual reproduction.
October glory
The main color of autumn leaves is deep red, and leaves with good lighting conditions are particularly shiny. The color change is a little later than other red maple varieties, and the color change is consistent. The red leaves last longer than other varieties, the tree shape is better, and the lateral branches grow vigorously. The seedlings need to be pruned to maintain a good dry type.
Sunset red maple
The main color of autumn leaves is orange, like sunset glow, which is very ornamental when planted in pieces. During the whole color change period, it can keep the same color change and is sensitive to the temperature difference between day and night. At present, the most widely used maple in the market is American autumn red maple. Through its almost perfect performance in autumn, many people speak highly of it. At present, many provinces and cities in China have taken it as the landscape of urban greening. Its development prospect should be very broad. There is also the American sunset maple, which conquered everyone's eyes with its color-changing characteristics. From green to red, the color change of red maple is interpreted to the extreme, and it is not very sensitive to the influence of the external environment. It can be presented to us with stable performance every year. October Brilliant is an excellent variety in American improved Hongfeng series, and its color change time is later than the above two varieties. Therefore, its deciduous time is also the latest. Its color changes are hierarchical, rich in color and compact in tree shape. It is a good ornamental tree. And very resistant to pests and diseases. Summarize. Compared with the above four kinds of red maple, they are all common tree species in landscaping. In contrast, the improved red maple series in the United States will occupy a large share in the future market with its own variety advantages and good market prospects.
American improved red maple-foreign pictures
American red maple mainly comes from the northern United States and most parts of Canada. It was introduced to China around 2000. China started small-scale cultivation. Because American red maple is easy to grow and survive. It soon spread in northern China. At present, it is mainly distributed in Shandong and Liaoning. American red maple has a good color-changing effect in the north because of its special geographical location. Many cities in the south cannot see the autumn colors of American red maple. In the north, represented by Yifeng Garden, the variety is very rich, the planting scale is already the largest in the country, and the autumn leaves are very bright and have their own characteristics. It can provide large seedlings with tree diameter of 5 to 12 cm for all improved varieties, including ground seedlings and container seedlings. American red maple varieties and the difference between their seedlings and cuttings. American red maple, as an excellent garden tree species, was first introduced to China by Hanfeng Group, Beijing Botanical Garden and Shanghai Institute of Landscape Architecture. Mainly due to its good performance as a colorful leaf tree and street tree abroad. The introduction at the beginning is mainly divided into two aspects: the introduction of seeds and the introduction of original trees. The seeds mainly come from the northern United States or Canada, and the big tree has introduced many famous native trees, such as brilliant October (autumn red maple) and sunset red. As far as I know, a considerable part of the supply of big trees comes from Holland. After all, the introduction of big trees is limited. The total number of big trees introduced to China in the early days was only a few thousand. Most nurseries and private growers reproduce mainly by sowing seedlings. Around 2004, the American red maple was once extremely popular. A seedling cost more than ten yuan, and imported trees were more expensive. A 5 cm American red maple can sell for one or two thousand yuan. Because there are few trees available in the project, which are expensive, and the seedlings are too small to be used, the American red maple gradually cools down after several years of fire, and the market tends to be saturated. The price of American red maple seedlings began to decline gradually. In recent years, the seed seedlings introduced in the early stage have reached the specifications and standards of the project, and after a large number of planting and promotion in these years, American red maple seed seedlings and imported trees are constantly competing to reduce prices, and the prices are gradually accepted by landscape engineering units, and American red maple has gradually begun to be applied in projects everywhere. Due to its excellent performance, the market began to heat up gradually. There are more friends who want to plant American red maple. However, many people suddenly found that it is better not to know what American red maple to plant. A large number of American' improved' red maple varieties have appeared on the market. These varieties are packaged and publicized by enterprises, which makes people see things in a blur. In fact, if you have studied plant physiology, many things will be solved. First of all, why do American red maple leaves turn red or yellow? What are the main reasons for color change? It turns out that the leaves of American red maple contain several material elements that determine the color of American red maple leaves. They are: chlorophyll, chloroplast, sugar, anthocyanin, carotene and so on. Chlorophyll and chloroplast are undoubtedly green. Anthocyanin is red, and it will turn purple when it meets alkaline substances. Carotene is orange or yellow, and sugar will be collectively referred to as anthocyanin or carotene by American red maple according to environmental changes. In spring, the new leaves of American red maple will show a little red, mainly due to the influence of anthocyanins. Then, when the leaves grow up, they will start photosynthesis and synthesize a lot of chloroplasts and chlorophyll, and the leaves of American red maple will gradually turn green. When the temperature drops in autumn, American red maple gradually stops synthesizing chlorophyll chloroplasts and begins to decompose into energy storage to prepare for winter. So the leaves show the colors of anthocyanins and carotene. If the proportion of anthocyanins is large, the color of American red maple leaves is mainly red. Conversely, if the proportion of carotene is large, it is yellow. If the ratio of the two is similar, it is orange. As we said, anthocyanins and carotene are converted from sugar. If you want the leaves of American red maple to turn red, you need to transform anthocyanins more. How to convert it into anthocyanin depends on temperature difference and air humidity. If the temperature difference is large and the air humidity is high, the American red maple is very red. On the contrary, the color will turn orange-red or yellow. It can be seen that the performance of American red maple autumn leaves mainly depends on environmental factors. For example, planting in high altitude areas or mountainous areas, with large temperature difference between day and night and good air humidity, will perform better. If planted in urban areas, it is relatively poor due to the influence of heat island effect. If planted in high latitudes in the north, it will perform well in autumn, on the contrary, it will be relatively poor in low latitudes in the south. Then you will understand that the performance of the same American red maple variety will be very different even if the planting location is changed. So the American red maple you bought at a high price may not be suitable for your area. According to our observation and tracking in recent years (Anhui Chang 'an colorful seedling base), it can be planted in northern Yunnan, but the leaf color in northern Shandong is more vivid and consistent. Secondly, the relationship between American red maple varieties and their leaf color. According to the data of the University of Florida, the main difference between American red maple varieties lies in the shape of trees, not the color of leaves. Therefore, different varieties of American red maple have little to do with the color performance of autumn leaves. Others may fool you about the growth rate of different varieties of American red maple, which may be slightly related to the varieties of American red maple, but the growth rate of American red maple ultimately depends on your planting situation, such as soil quality, rainfall or irrigation, pest control and so on. For example, October glory (autumn red maple) and sunset red generally grow low in the southern United States, but grow high and fast in wet rivers or swamps. Therefore, reasonable irrigation is beneficial to the growth of American red maple. We planted American red maple in Shanghai for almost a short time. After investigation, it was found that the soil near Shanghai was saline-alkali and sticky, which was not conducive to the growth of American red maple. But this problem does not exist in Jiangsu and Zhejiang provinces. If you plant American red maple, we still recommend that you choose seedlings cultivated with seeds. First, the cost of American red maple seedlings cultivated in this way is lower. Cutting seedlings cost too much. Second, because of the variability of American red maple seedlings, you may get better seedlings to adapt to this area. Any seed sowing seedlings will have certain variation, but this variation does not necessarily mean worse, but it may also be better. As long as carefully selected from the seed seedlings, it is entirely possible to select some American red maple seedlings with good quality. Many domestic enterprises have improved Hongfeng in this way. If you can' improve' yourself, there is absolutely no need to spend a high price to buy someone else's improved red maple. Third, different regions can choose different provenances for planting. American red maple is mainly distributed in North America, parts of Canada and all parts of the United States. We know that the adaptability of different provenances is very different. Choosing provenances with similar climatic conditions will undoubtedly improve your chances of success in introducing American red maple. Edit the development status of this paragraph.
Around 2002, several horticultural varieties of American red maple were introduced to the earliest places in China. Its color change effect is good, the color is bright, and each variety has its own advantages. The American red maple market was once gradually replaced by several horticultural varieties with good color change, and later it was called "American improved red maple". According to the latest statistics in the industry in 2009, the number of large-scale seedlings in China began to increase, mainly in Shandong Peninsula. At present, there are large seedlings with a diameter of 8- 15 cm in Rizhao, Qingdao and other places, which are increasing every year. American improved red maple has fewer pests and diseases. There are mainly black mites and Anoplophora glabripennis. Deal with it in time after it is found, and it will not affect the tree. The improved red maple in the United States has great potential for future development and is the first choice to replace other street trees in China. Edit the seedling raising methods in this section.
American red maple, also known as Canadian red maple, is a deciduous tree native to the east coast of the United States. It grows rapidly, with adult tree height 12 ~ 18 m and crown width 12 m, which can adapt to the growth of various soil types. In bloom in spring, the flowers are red. Because of its bright colors and neat crown in autumn, it is widely used in parks, communities and streets. It can be used as both landscaping and street trees, and is deeply loved by people. It is one of the ideal rare tree species introduced to beautify and green urban gardens in recent years. The seedling raising techniques are summarized as follows: 1. Selection and treatment of nursery land. The seedling raising of American red maple should choose sandy loam with slight acidity, good water permeability and good irrigation conditions. Before sowing, apply 5000 kilograms of organic fertilizer and 50 kilograms of NPK ternary compound fertilizer per mu. In order to prevent seedling diseases and insect pests, especially underground pests, 8 ~ 10 kg of ferrous sulfate and 2 kg of phoxim granules were used per mu, mixed with fine soil and scattered on the surface, and then deeply ploughed and raked to make a border with a width of 1 m and a ridge width of 30 cm. Second, seed treatment, sowing date and method American red maple seeds have no dormancy and can be sown in autumn or spring. Now mainly introduce spring sowing. The suitable sowing period is from mid-March to mid-April. Before sowing, seeds were mixed with wet sand at the ratio of 1: 3, and stored in sand at 3 ~ 5℃ for one month at low temperature. During stratification, it should be inspected and managed regularly. If germinated seeds are found, sow them in time. When sowing, water the bottom of the bed first, and then sow after the water has infiltrated. The sowing amount is about 200 grains per square meter. After sowing, cover with 0.5 cm fine soil. In order to keep soil moisture and raise ground temperature, seeds can germinate in order in advance. Cover with plastic film or small arch shed. The arch shed should be ventilated. When the temperature exceeds 30℃ at noon, it should be shaded properly. Generally, after sowing, seedlings emerge in about 15 ~ 20 days. Third, after the seedling management seedling is unearthed, the initial growth is slow and the stress resistance is poor. Spray water frequently, keep the soil moist, and remove weeds in time. When weeding, turn over the soil in time, and cultivate the soil as much as possible to prevent lodging. When the seedlings grow to a height of 5 cm, they will be fixed, usually after irrigation. According to the plant spacing of 10 ~ 15 cm, the weak, sick and small seedlings will be removed to keep the seedlings healthy and tidy, and the seedlings will be transplanted with soil balls in rainy days. In early June, combined with watering, topdressing urea, per mu 15kg, topdressing urea per mu 10 ~ 15 kg in mid-July, and controlling water appropriately in the later period. If moths and other pests are found, 2.5% deltamethrin 4000 times solution can be sprayed for control. The seedling height can reach 1 ~ 1.5m in that year, and it can be planted alone in the spring of the following year. Edit the development prospect of this paragraph.
In the future, excellent horticultural varieties will gradually replace seeds to propagate seedlings in the American red maple market. The high price of imported seedlings will also be replaced by domestic horticultural varieties that reproduce asexually. After all, the cost of import is really high. American autumn red maple is the best American red maple variety. In a few years, consumption will undoubtedly increase. The fierce competition in the market will gradually intensify. At this time, we should be alert to some unscrupulous traders who use seedlings propagated by seeds to pretend to be real American autumn red maple. The specific identification method is recommended to consult professionals in the industry.