When will cinnamon litchi blossom?

Question 1: How many days does it take for Guiwei litchi to bloom in winter? Generally, it takes more than 7 days to blossom at the low temperature of 6- 12. If it is less than 7 days, it is difficult to grow flowers. If it is below 6 degrees, it is difficult to germinate and bloom. If the lowest temperature exceeds 12 degrees, it is difficult to grow flowers.

Question 2: When will litchi blossom? What season will bear fruit? It blooms in March-April and bears fruit in May-July.

In fact, there are many varieties of litchi, depending on what litchi it is. Her flowering and fruiting periods are different.

Common main varieties are as follows:

March red

Because it matures in the late March of the lunar calendar, it is named March Red. It is the most precocious variety. Mainly produced in Xinhui, Zhongshan, Zengcheng and Lingshan, Guangxi. The fruit is heart-shaped, wide at the top and sharp at the bottom; Lobes are different in size, irregularly arranged, and suture lines are not obvious; Thick skin, reddish; The meat is yellowish-white, slightly tough, rough in texture, large in core, sweet and sour in taste, and has residue after eating. Because it was listed early, it is still very popular with consumers.

Round branch

Also known as Shuidong or Shuidong Black Leaf. Distributed in the suburbs of Guangzhou and counties in the Pearl River Delta. It is named because it is suitable for planting in watery places, and its leaves are slender and similar to black leaves. The fruit is short oval, or slanting heart-shaped, with high shoulder edge and low shoulder edge; The cracked slice is slightly flat and wide, and it should be dark red. The pulp is soft, smooth and juicy, sweet and sour, and slightly fragrant. Mature at the end of May or early June.

Black leaves

The fruit is short ovoid, with * * * or dull top and flat fruit; Dark red skin, thin shell, flat and blunt lobes, uniform size, regular arrangement, obvious cracks and stitches; The meat is firm and crisp, sweet and juicy, and most of them are big stones. Mature in mid-June. More resistant to storage.

Hu Aizhi

Also known as Ye Mi, Fenghua, Gu Feng, Hu Aizhi (according to legend, an ancient book passed by Lingnan, so it was named after the litchi given by villagers) and Hu Aizhi. Guangdong is the most widely cultivated and prolific variety. Both fresh and dry are suitable. The fruit is round or nearly round, and the pedicle is flat; The shell is thick and tough, crimson, with large lobes, slightly convex or nearly flat, irregularly arranged, with occasional spikes near the pedicle, dense and few; The meat is milky white, soft, clear and juicy, sweet and sour, with large and long nuclei and occasional small nuclei. Mature in early July.

Guiwei

Also known as cassia twig, it is named after the fragrance of osmanthus. Is one of the best varieties, produced in the suburbs of Guangzhou and Lingshan, Guangxi. There are two kinds of cinnamon flavors: Hong Quan and Duck Head Green. The fruit is spherical, the shell is light red, thin and crisp; The chapped slices are small and sharp, and there are deep grooves around the top of the fruit from both sides of the pedicel, which is the characteristic of cinnamon; Yellow and white, soft and full, small core and sweet taste. It ripens in early July.

Nomitz

Also known as Mizhi, it is the most valuable variety in Guangdong. It is a famous Guangdong specialty fruit at home and abroad. Mainly produced in Luogang District, a suburb of Guangzhou, and Xintang Town, Zengcheng City, followed by Conghua County and Dong Fan County. The fruit is heart-shaped, nearly round and its stalk is skewed. Yellow wax color at the beginning of listing, bright red at the beginning; The cracks are large and long, longitudinally arranged, sparse and slightly convex, and the suture line is wide and obvious; The top of the fruit is plump and the pedicel is slightly concave; The meat is thick, the core is small, the pottery color is yellow, white and translucent, and the soluble solid content reaches 20%. It is very sweet, fragrant, waxy, tender and of good quality. It is the favorite variety of consumers. Best for fresh food and drying. Mature in early July. There are two strains of red glutinous rice and white glutinous rice.

Justin

Also known as wrinkled core, it is mainly produced in Minhou County, Fuzhou City, Fujian Province. The fruit is heart-shaped and the top of the branch is full; The fruit stalk is long; The pericarp is purplish red, with lobules and spines in the center, and the suture line is not obvious; The meat is thin, milky white, the size of the core is less than 7, and it tastes sweet and sour. Mature in mid-July.

Zhu Lan

Mainly produced in Longhai, Nanjing, Zhangzhou and other counties and cities in Fujian. There are red and cyan. The fruit is heart-shaped and full; The fruit stalk is thin; The crack is large and spineless; It should be thin, with different sizes and large cores; Pottery is milky white, sweet and sour, and of medium quality. Mature in mid-July. Except for fresh food.

Litchi pictures (2 photos)

Suitable for canning and drying.

Chenzi

It is a must among litchi in Fujian. When it matures, it gives off a faint fragrance, which is refreshing. Putian and Xianyou are the most famous areas. Cai Xiang. Litchi spectrum. This variety has been introduced to the United States at the beginning of this century and cultivated in southern Australia.

Hang green

It is the treasure of litchi in Zengcheng, Guangdong Province, and one of the famous litchi varieties in Guangdong Province. Tribute of feudal times. "Lingnan litchi spectrum" describes: its fruit "protrudes a little higher beside the pedicle, which is called the dragon head; One side is low, called phoenix tail. Dressed in red when cooked, there is a green line running through it, so it was renamed. " The fruit is as big as a chicken print and the core is as small as a pea; Pericarp dark red with green; The lobes are flat and the suture lines are obvious; The meat is thick and crisp, sweet and juicy, fragrant and unique in flavor. Mature from late June to early July. At the 2002 Green Litchi Auction held in Zengcheng City, Guangdong Province, a litchi sold for 555,000 yuan. This litchi was picked from an old tree hanging green in Zengcheng "Xiyuan". This tree has a history of more than 400 years, and it bears little fruit every year. Its characteristic is that the shell color is slightly green and six dividends, and a green line runs through the fruiting body. The flesh is crisp, tender and slightly fragrant, and it is wrapped with non-wet paper after peeling. Become the most expensive fruit in history.

crystal ball

Guangdong origin, crisp and sweet flesh, transparent flesh color and small stone, is a kind of > >

Question 3: When Lingshan in Guangxi began to plant litchi and cinnamon in large quantities, there were many!

Question 4: When does litchi blossom and bear fruit? Litchi blooms in March-April and ripens in May-August.

Question 5: What is the reason why Guiwei litchi has not sprouted so far, and what measures should be taken? The reasons for it were not known Anyway, it's all like this here in Zhanjiang now. All the buds came out earlier, but only a moment ago, but the number was very small. Now many of them are buds. Spray some foliar fertilizer to promote flowers.

Question 6: How to plant high-yield cinnamon litchi? Planting method of high-yield cinnamon litchi;

First, cultivate strong mother branches.

After a large number of fruits of Guiwei litchi, the tree vigor is difficult to recover, and the leaves are easy to turn pale yellow, which affects photosynthesis and the ability of root system to absorb water and fertilizer. The initial shoots are uneven, the internodes are short, the leaves are thin, and the quality of branches is poor. It even affects the germination and aging of the second and third buds in time, resulting in stunted terminal buds and difficulty in flowering. Therefore, it is necessary to do a good job in fertilizer and water management, determine the type and quantity of fertilization according to the tree potential, and ensure that the last branch of 10 is pulled out in the middle and late June, and 12 matures in the early February to form a pure ear.

1, timely application of quick-acting fertilizer.

Top dressing outside the roots, mainly urea and potassium dihydrogen phosphate, within 1 week after fruit picking of high-yield trees will promote leaf greening, promote root growth and restore tree vigor as soon as possible. At the same time, ditch and apply quick-acting fertilizer. Generally, compound fertilizer 1 kg and urea 0.5 kg are applied to every 50 kg of fruit to ensure the absorption and growth of roots during drought.

2, slight retraction pruning

Cinnamon-flavored trees have loose shapes and few branches. Generally, slight retraction pruning is used to cut off the damaged section at the top of the fruiting branch to promote the orderly germination of new shoots.

3, timely application of organic fertilizer

When the first new shoot begins to turn green, furrow is opened and heavy fertilizer is applied, and 8- 10 kg of chicken manure or 3-5 kg of peanut bran, 0.5-2.5 kg of calcium superphosphate and 0.5-2.5 kg of compound fertilizer are applied to each plant to promote root growth and provide sufficient organic nutrients for the second and third vigorous new shoots. After bolting for the third time, little or no chemical fertilizer should be applied to prevent winter buds from sprouting.

Second, do a good job in controlling shoots and promoting flowers.

1, timely release autumn bamboo shoots.

Actively cultivating late autumn shoots and early winter shoots is the best way to prevent litchi from sprouting in winter shoots. Through water control, fertilizer control, pruning and other measures, the fruiting mother branches of Cinnamomum cassia were extracted around June 5438+1October 65438+5 ~ 25, and turned green and mature before flower bud differentiation, so that flower bud differentiation went smoothly, and the problems of wasting manpower and material resources, weakening tree potential and affecting flower quality and fruit setting caused by shoot control were solved.

2. Use a small amount of winter shoots to adjust the balance between reproductive growth and vegetative growth in the following year.

When most of the last autumn shoots of Guiwei litchi have turned green, a small number of autumn shoots can germinate in winter without any treatment, and new shoots can germinate in early and middle March and late May of the following year. It is observed that this part of the new shoots on Guiwei litchi generally does not cause fruit drop, but it is different when glutinous rice is brewed. Several years' practice shows that extracting a small amount of winter shoots and spring shoots of cinnamon-flavored litchi is beneficial to the accumulation of photosynthetic products, which can control the fruit hanging amount of trees in time, thus promoting the development of fruits, with large single fruit and good quality, and can mature 2 ~ 3 days earlier. The trees recover quickly after harvesting, which is beneficial to high and stable yield in the coming year.

3, manual and drug prompt control

Generally, spiral girdling is carried out after the last autumn shoot matures from the end of 165438+ 10 to the middle of 65438+February, which can prevent the occurrence of winter shoots and promote the fruiting of mother branches. For some early winter buds that are pulled out too late, artificial cuttage and foliar fertilizer can be adopted to promote the young leaves to mature as soon as possible and enter the flower bud differentiation. If a single plant grows winter buds, bud control and flowering promotion elements can be used to kill the buds.

Leaflets of Guiwei litchi are easily affected by air temperature in the early stage of young panicle growth, which is one of the reasons for the low flowering rate and fruit setting rate of Guiwei litchi.

Third, take timely measures to strengthen flowers and protect fruits.

1, application of spiral girdling technology

Spiral girdling can obviously shorten the panicle, improve the flower quality and the proportion of female flowers, make the female flowers bloom many times and prolong the flowering period by 5 ~ 7 days. At the same time, spiral girdling can improve the carbohydrate accumulation of fruiting mother branches, improve the ability to resist low temperature and rain during flowering and fruit-setting period, and thus improve the fruit-setting rate; Without spraying any hormone, the second and third fruit drop is significantly reduced.

2, timely application of strong fruit fertilizer

Quick-acting fertilizer should be the main fertilizer for strong fruit, and compound fertilizer 1.5 kg and potassium chloride 1.5 kg should be applied in drip irrigation line after flowering. For plants with many fruits and weak trees, 5 ~ 10 kg of decomposed chicken manure or 2.5 kg of peanut bran should be applied before and after the second physiological fruit drop, and compound fertilizer 1 ~ 1.5 kg should be applied to ensure a balanced water supply.

3. Spray medicine to enhance the photosynthesis of leaves.

Litchi often encounters low temperature and rainy weather in flowering period, but Cinnamon litchi trees are weak and have poor stress resistance, so spray 2...>:& gt.

Question 7: When will the litchi tree blossom? 1. The root system of litchi varies with the propagation mode of seedlings. The taproots of seedling trees and grafted trees have developed; The lateral roots and fibrous roots (ring branches) of litchi propagated under high pressure are developed and there is no main root. The root system of litchi consists of many thick and developed lateral roots and slender and dense fine roots. The newborn young root is white and crisp, commonly known as "bean sprout root". The old roots are grayish brown. Litchi roots and fungi grow together to form mycorrhiza, which is a total branching type. Second, the trunk and branches (1) Litchi trunk is tall, the tree height is more than 16.0 meters, the crown diameter is more than 15.0 meters, and the trunk is thick. The bark is rough and slightly cracked, but smoother than longan, grayish white, taupe or dark brown. There are differences in color and roughness of tree epidermis among different varieties. Shuidong black leaf, jujube and other varieties have gray trunks and smooth skins, while black leaf, glutinous rice paste, stand out and other varieties have dark brown trunks and rough skins. Trunk height and crown size are related to soil, varieties, propagation methods and cultivation management. Poor soil layer or high groundwater level, small crown; The soil layer is deep and fertile, and the crown is large. The trunk of the plant propagated by barge branches is not obvious, mostly 3-4 trunks, which are multi-trunk, and the crown is semi-circular with an opening; Seedling with obvious trunk, single stem type and round crown. Litchi trunk wood texture is delicate and reddish brown. (2) The leaf buds and flower buds at the top of the branches are single buds, showing * * *, but the terminal buds are protected by young leaves. The top of the branch tip has strong advantages, and the terminal bud is easy to germinate into branches; Only 1-2 axillary buds with strong branches can germinate, and the rest are latent buds. After the new buds mature, some tips die and the first lateral buds become terminal buds. Litchi branches can be divided into 1 according to their properties. Vegetative branches are called vegetative branches when they are extracted from leaf buds. Generally, the length is 20-30 cm, and the long branch is 60- 100 cm. The last branch with sufficient nutrition grows well and can be heading and flowering in the second year, which is called the fruiting mother branch. 2. Branches that can blossom and bear fruit are called fruiting branches. The flower buds of litchi are mixed buds. When the young spike meets high temperature, the fruiting branches of leafy inflorescences are extracted; When the ear development process encounters low temperature, the leafless pure inflorescence is extracted, and the fruiting branches are not obvious, which becomes the main axis of the inflorescence. The characteristics of litchi bamboo shoots vary from variety to variety. The branches that stand out are dense and short; Large-scale, water east sparse long; Cinnamon tastes hard and crisp. Litchi shoots are yellow-green, and the epidermis is covered with many gray-white round or oval spots; Mature branches are grayish brown; Perennial branches are darker in color. Three, litchi leaves are even or odd pinnate compound leaves, leaflets are generally 2-5 pairs, opposite or alternate. Among them, the compound leaves of stand out and plum are composed of 1-8 leaflets, with 2-4 leaflets more. Litchi leaflets are elliptic or lanceolate or ovoid, 5- 16 cm long and 2-5 cm wide, with short stalks and acuminate or acute tips. Leaf base is round or wedge-shaped. The leaves are intact, tough and shiny, and some of them are wavy. The leaves are green and the back is blue and white. The new tender leaves are copper or yellow-green, and turn green when they mature. The main veins on the back of leaves are raised, and the lateral veins are not obvious, and the lateral veins on the surface of leaves are generally not obvious. The length, width, size and depth of leaves vary with varieties, which can be used as one of the characteristics of variety identification. Four. Litchi with flower (1) spike structure are clustered inflorescences arranged in a cone shape. Spike consists of main spike, lateral spike, branch spike and flower group. There are also some axillary spikes at the base of the main spike (main root) and at the axils of leaves. A small flower group is generally formed by zigzag arrangement of three flower buds, and two small flower groups and a single flower bud in the middle, that is, seven flower buds, form a flower group. Some big spike flower heads are also composed of two flower groups and a single bud in the middle, that is, 15 buds form a big flower group. Generally, 2-7 flower groups (or large flower groups) form a branch. 3- 10 branches to form a lateral spike. 6-20 lateral spikes and several axillary spikes form a convergent panicle. The density of small flowers on litchi inflorescence varies with varieties. Cloves and cinnamon inflorescences are scattered; Plums and stems have short flowers and many flowers, so they feel dense; March red, great creation, thallium litchi with thick inflorescence and many flowers. The number of flowers per inflorescence varies from variety to variety. More than 800 flowers per inflorescence, more than 0/600 flowers in March, more than 0/300 flowers in sugar and more than 0/00 flowers in cinnamon. (2) Inflorescence size varies from variety to variety, and has certain correlation with fruit maturity, fruit size and leaf size. First, early-maturing varieties such as March Red, Jujube, Black Leaf, etc. have large and long inflorescences and thick pedicels, which are called "long-legged flowers" by fruit farmers, characterized by many flowers and large fruit shapes; Late-maturing varieties, such as Guiwei, Heli, glutinous rice paste, etc. The inflorescence is short and the pedicel is thin, which is called "short-footed flower" by fruit farmers, which is characterized by few flowers and medium fruit shape. & gt

Question 8: The growth cycle of Guiwei litchi: Take the suburb of Guangzhou as an example, it blooms from late March to late April, and the flowering period is about 25 ~ 30 days. Fruit ripens from the end of June to the beginning of July. There are few fruits per panicle, and they are afraid of rain in the young fruit period, so they have strong adaptability to soil, can be planted in plains and mountainous areas, are drought-tolerant, and can be cultivated in mountainous areas, but their branches are brittle and their wind resistance is slightly weak. In high-yield years, due to the influence of pollination of different varieties, the phenomenon of macronucleus often appears. Cinnamon trees are strong, with slender branches and yellow leaves. Young fruit-bearing trees need to take measures to control shoots and promote flowers before they can blossom and bear fruit. In addition, this variety bears fruit in different years. Growing environment: this variety has strong adaptability and can grow well in mountainous areas and plains, especially in areas with dry flowering period.

Question 9: Cultivation Techniques of Guiwei Litchi After a large number of fruits are hung on Guiwei Litchi, the tree vigor is difficult to recover, and the leaves tend to turn pale yellow, which affects photosynthesis and the ability of roots to absorb water and fertilizer. The initial shoots are uneven, the internodes are short, the leaves are thin, and the quality of branches is poor. It even affects the germination and aging of the second and third buds in time, resulting in stunted terminal buds and difficulty in flowering. Therefore, it is necessary to do a good job in fertilizer and water management, determine the type and quantity of fertilization according to the tree potential, and ensure that the last branch of 10 is pulled out in the middle and late June, and 12 matures in the early February to form a pure ear. 1, timely apply quick-acting fertilizer for high-yield trees, and topdressing outside the roots within 1 week after fruit picking, mainly urea and potassium dihydrogen phosphate, to promote green leaves, root growth and restore tree vigor as soon as possible. At the same time, ditch and apply quick-acting fertilizer. Generally, compound fertilizer 1 kg and urea 0.5 kg are applied to every 50 kg of fruit to ensure the absorption and growth of roots during drought. 2. Slight retraction and pruning: the cinnamon tree is loose and has few branches. When picking fruits, slight retraction pruning is generally used to cut off the damaged parts at the top of the fruiting branches to promote the orderly germination of new shoots. 3. Apply organic fertilizer in time. When the first bud begins to turn green, dig ditches and apply heavy fertilizer. Apply 8 ~ 10 kg of chicken manure or 3 ~ 5 kg of peanut bran, 0/.5 ~ 2.5 kg of calcium superphosphate and 0/2.5 kg of compound fertilizer to each plant to promote root growth and provide sufficient organic nutrients for the second and third buds. After bolting for the third time, little or no chemical fertilizer should be applied to prevent winter buds from sprouting. 1, timely releasing autumn shoots and actively cultivating late autumn shoots and early winter shoots are the best ways to prevent litchi from sprouting winter shoots. Through water control, fertilizer control, pruning and other measures, the fruiting mother branches of Cinnamomum cassia were extracted around June 5438+1October 65438+5 ~ 25, and turned green and mature before flower bud differentiation, so that flower bud differentiation went smoothly, and the problems of wasting manpower and material resources, weakening tree potential and affecting flower quality and fruit setting caused by shoot control were solved. 2. Use a small amount of winter shoots to adjust the balance between reproductive growth and vegetative growth in the following year. When most of the last autumn shoots of Guiwei litchi have turned green, and a small number of autumn shoots sprout due to the low nutritional level of branches, these winter shoots can be naturally matured and new shoots will sprout in the early, middle and late March of the following year. It is observed that this part of the new shoots on Guiwei litchi generally does not cause fruit drop, but it is different when glutinous rice is brewed. Several years' practice shows that extracting a small amount of winter shoots and spring shoots of cinnamon-flavored litchi is beneficial to the accumulation of photosynthetic products, which can control the fruit hanging amount of trees in time, thus promoting the development of fruits, with large single fruit and good quality, and can mature 2 ~ 3 days earlier. After harvesting, the trees recover quickly, which is beneficial to high and stable yield in the coming year. 3. Artificial and medicinal shoot control generally requires spiral girdling after the last autumn shoot of 654381late October+065438+mid-February, which can prevent the occurrence of winter shoots and promote the fruiting of mother shoots. For some early winter buds that are pulled out too late, artificial cuttage and foliar fertilizer can be adopted to promote the young leaves to mature as soon as possible and enter the flower bud differentiation. If a single plant grows winter buds, bud control and flowering promotion elements can be used to kill the buds. Leaflets of Guiwei litchi are easily affected by air temperature in the early stage of young panicle growth, which is one of the reasons for the low flowering rate and fruit setting rate of Guiwei litchi. 1. The application of spiral girdling technology can obviously shorten the panicle, improve the ratio of female flowers, make the female flowers bloom many times and prolong the flowering period by 5 ~ 7 days. At the same time, spiral girdling can improve the carbohydrate accumulation of fruiting mother branches, improve the ability to resist low temperature and rain during flowering and fruit-setting period, and thus improve the fruit-setting rate; Without spraying any hormone, the second and third fruit drop is significantly reduced. 2. Quick-acting fertilizer should be the main fertilizer for strengthening fruit and fat fruit in time, and compound fertilizer 1.5 kg and potassium chloride 1.5 kg should be applied in drip irrigation line after flowers wither. For plants with many fruits and weak trees, 5 ~ 10 kg of decomposed chicken manure or 2.5 kg of peanut bran should be applied before and after the second physiological fruit drop, and compound fertilizer 1 ~ 1.5 kg should be applied to ensure a balanced water supply. 3. Spraying chemicals to enhance leaf photosynthesis Litchi often encounters low temperature and rainy weather during flowering, while Guiwei Litchi tree is weak and has poor stress resistance. Spraying nucleic acid produced by fruit trees of Guangdong Academy of Agricultural Sciences for 2 ~ 3 times on cloudy days can improve the photosynthetic capacity of litchi leaves, flower quality and fruit setting rate. 4. Properly control the fruit carrying capacity. Guiwei litchi is a small-nucleated variety, but sometimes there is a phenomenon of high big-nucleated rate. It was observed that the small nucleus of Guiwei litchi was unstable, which was mainly affected by external conditions. The relatively low temperature at flowering stage hinders embryo development, resulting in abortion or hypoplasia of seeds and a high rate of nucleate. When there are many pure panicles, good fertilization conditions for female flowers and high flowering temperature, the fruit setting rate is high and there are many early fruits, and small drupes are easy to fall off due to poor nutritional competition, resulting in an increase in the proportion of large drupes. And the big core ... >>

Question 10: Guiwei litchi in June 1 Can it still control the sprouting?) The girdling time: It is most suitable when it begins to differentiate into flower buds (early-maturing variety March Red 10 to mid-June165438, middle-late maturing varieties such as Heiye and Feizi. Mid-and late-maturing varieties are generally selected165438+1early February for girdling. For trees with full terminal buds, green colors, loose scales and winter shoots, the girdling time can be advanced to the middle and late of 165438+ 10.

(2) Objects and conditions of girdling: It is mainly used for young trees such as glutinous rice paste and cinnamon, which are vigorous and difficult to bloom, or refer to varieties such as Feizixiao and Black Leaf. Girdling plants requires the trees to be particularly vigorous, with thick green leaves and thick leaves, and the length of autumn shoots should be above 15 cm at a time. And the orchard is required to have irrigation or watering conditions. If there is continuous drought in winter and flower and fruit period, it can be irrigated or watered in time.

(3) girdling site: it should be carried out on the trunk or trunk branch with a diameter of 4 ~ 12 cm. The peeling port of the first trunk should be more than 20 cm from the ground, and then it will move up year by year, and the distance between the two peeling ports should not be less than 4 cm.

(4) girdling method: use a spiral girdling knife or a thin and sharp knife to girdle the girdling part spirally, and the depth is just up to the xylem without damaging the wood.

(5) The girdling degree: girdling 1.2 ~ 3 times, with a pitch of 5 ~ 8 cm and a width of 0.2 ~ 0.6 cm.