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The phenological period is later than that of Yunnan, and it occurs in June, so it is called "June of fruit falling".
The fourth time, before the fruit is harvested, the mature or nearly mature fruit is dropped, so it is called pre-harvest fruit drop. The first and second falling flowers and fruits are mainly caused by insufficient nutrition and poor pollination and fertilization. The third fruit drop is caused by the fierce competition for nutrients among fruits and the lack of auxin in embryos. Because the osmotic pressure of leaves is greater than that of young fruits, the power to compete for nutrients is stronger than that of young fruits. Therefore, in addition to pinching and pruning branches to inhibit the growth of new shoots, it is necessary to apply huafei to supplement nutrients in time. [ 1]
Fruit development
Apple peel color can be divided into background color and surface color. When the fruit is immature, the background color of the peel is generally dark green, and there are three situations when the fruit is mature:
1. Green fades or even disappears completely, and the background color is red.
2. Green will not fade completely, resulting in yellow-green or yellow-green background color.
3. Green doesn't fade at all, it is still dark green.
When the fruit is ripe, the surface color of the peel is generally red, green and Huang San, and there are other colors, but they are rare.
The main pigments that determine the color of fruits are chlorophyll, carotene, anthocyanins and flavonoids. Anthocyanin is an extremely unstable water-soluble pigment, which mainly exists in cell fluid or cytoplasm. It is red at low pH, lavender at neutral and blue at alkaline. When it is combined with different metal ions, it will also show various colors, so fruits can show various complex colors.
Factors affecting the formation of anthocyanins
In addition to the heredity of varieties, the sugar content in fruits is the main factor affecting the formation of anthocyanins in apples. Anthocyanins are proanthocyanidins formed when pentose breathes violently. In addition, anthocyanins often combine with sugar to form anthocyanins in fruits. Therefore, the development of anthocyanins is closely related to the sugar content. Any factors that affect the synthesis and accumulation of sugar will affect the development of anthocyanins. Higher tree nutrition level, reasonable load, suitable ratio of phosphorus, potassium and nitrogen fertilizer and proper water control are all beneficial to the red development of fruit.
The effect of temperature on coloring is also related to the accumulation of sugar. When the temperature of mid-late mature apple varieties is above 20℃ at night, it is not conducive to coloring.
The firmness of pulp is also one of the important indexes of fruit quality. The hardness of pulp not only affects the taste of fresh food, but also relates to the storage and processing characteristics of fruit. The hardness of apple pulp is closely related to the cellulose content in the cell wall, the kind and quantity of pectin in the glue layer in the cell wall and the swelling pressure of pulp cells. [ 1]
Apple tree is a temperate fruit tree that likes low temperature and dryness. It requires no cold in winter and no heat in summer. The suitable temperature range is the annual average temperature of 9 ~ 14℃, the extreme low temperature in winter is not lower than-12℃, the highest monthly average temperature in summer is not higher than 20℃, the annual accumulated temperature is ≥ 10℃, and the average temperature in the growing season (April ~ 10) is about 5000℃. It is generally believed that apples can be planted in areas where the annual average temperature is 7.5 ~ 14℃. The natural dormancy period of apples is very long. If the temperature in winter is too high to reach the low temperature required for winter dormancy, the germination in spring will be uneven.
Judging from the areas with the most apples in the world, the average temperature in Leng Yue in winter (65438+ 10 in the northern hemisphere and July in the southern hemisphere) is between-10 ~ 10℃, which can meet the requirements of low temperature for apples. The average temperature of the main apple producing areas in China 1 month is within this range. The average temperature 12 ~ 18℃ in the growing period (4 ~ 65438+ 10 month) and 18 ~ 24℃ in the summer (June ~ August) are the most suitable for apple growth. In autumn, the temperature is high during the day and low at night, and the fruit has high sugar content, good coloring, thick peel, more fruit powder and storage resistance. [ 1]
deposit
The precipitation per mu during the apple growing period is about 180mm. Generally, natural precipitation can actually be absorbed by fruit trees, which is about 1/3, so it is enough to have a precipitation of 540 mm during the growing period. Areas with rainfall below 450 mm from April to September need irrigation. The distribution of precipitation in northern China is uneven, with 70-80% concentrated in July and August, and the amount of water is insufficient in spring. There is little precipitation and water shortage in inland areas, so irrigation conditions and soil and water conservation measures must be considered when building gardens and selecting land, and drainage measures should also be paid attention to in rainy season.
1. Young trees should be pruned according to the principle of "giving priority to lightness, paying equal attention to modeling and results, and promoting early yield increase". (1) 2-4-year-old young trees, under the premise of arranging backbone branches, the key point of pruning is to clean up a layer of tightly squeezed branches and straighten the tree shape. According to the planting density, the small crown sparse layer shape (less than 80 plants per mu) and free spinning cocoon shape (more than 80 plants per mu) can be popularized. Small crown and sparse layer shape: select 3-4 main branches in the first layer, clean up the dense branches that affect the growth of the main branches after selection, and clean up 1-2 branches every year, and strive to clean them up in 2 years. Free-spinning reeling shape: 3-4 small main branches are selected every year, and the spacing between the main branches is about 20 cm, and the branches that are too dense are properly loosened. (2) 5-8-year-old young trees have entered the fruiting stage, and the key point of pruning is to clean up the dense branches between layers, improve the lighting conditions of the trees, and make the fruiting parts gradually transition to the backbone branches. Clean up 2-3 crowded places every year, and strive to clean them up in 3 years. After several years of adjustment and cleaning, five main branches, 1-2 auxiliary branches and 10- 13 main branches were preserved in the sparse layer of small crown.
2. Pruning of adult trees The purpose of pruning of adult trees is to "improve the illumination, improve the quality of branches, stabilize the quality and increase the yield". The key point of pruning is to remove two layers of excessively dense large auxiliary branches, large lateral branches and large branches in batches, so that the large branches remaining in two or more layers extend outward as much as possible in a whip shape, and the total branches account for less than 20% of the total branches of the whole tree, which is beneficial to the illumination in the inner room of the first floor. If the crown of the tree is on the high side, it is necessary to gradually bow your head and be happy by the strength of the tree, and the height of the tree should be controlled below 3.5 meters; If the crown has crossed, the densely packed branches should be drained or transformed into small branches, and the branches should be shortened to slow down the outside and promote the inside, or the direction and angle of the main branches should be changed by changing the main branches, so that the crown distance should be kept at about 1 m to improve the lighting conditions of the population and individuals.
Second, cut off the diseased branches and insect branches. According to the survey, many diseases and insect pests that harm apples overwinter on the branches. For the diseases and pests that overwinter in trees, combining with winter shears, all branches of diseases and pests are cut off, burned or buried deeply, which can obviously reduce the harm in the coming year.
Third, the rough old bark in the gap between the rough old bark and trunk of fruit trees, there are often a large number of overwintering bacteria and pests. Scraping rough old bark, burning or burying it deeply has a good control effect on many kinds of pests and diseases, and sometimes even completely eliminates some pests.
Apple is a beauty product, which can not only lose weight, but also make the skin smooth and tender. Apple is a low-calorie food, every 10.
0 g only produces 60 kilocalories; The nutrients in apples are soluble and easily absorbed by the human body, so they are called "living water", which is beneficial to dissolve sulfur and make the skin smooth and tender. Apple contains copper, iodine, manganese, zinc, potassium and other elements. Without these elements, the skin will be dry, fragile and itchy.
Vitamin C in apples is a protector of cardiovascular system and a healthy element for patients with heart disease.
People who eat more apples are much less likely to catch a cold than those who don't eat or eat less apples. Therefore, some scientists and doctors call apples "all-round healthy fruits" or "general practitioners". The air pollution is serious. Eating more apples can improve the respiratory system and lung function and protect the lungs from dust and smoke in the air. ? [7]?
Pectin: It belongs to soluble fiber, which promotes cholesterol metabolism, lowers cholesterol level and promotes fat excretion.
The cutting effect after film mulching is better. No matter which cutting method is adopted, it is necessary to pay attention to the fact that the upper end of the cutting does not protrude too long from the ground, and at the same time, it is necessary to prevent the cutting from being inserted and avoid the variety from being mixed.
Cutting shall be started when the local soil temperature (15-20cm) is stable above 10℃. In North China, it is usually from late March to early April, but in North China, it is not until mid-April that cutting seedlings can be carried out in the open field.
During the period from cutting to producing new roots, soil drought must be prevented. Generally 10 days or so 1 time. Water the cohesive soil less often. If you water too much, the soil will be too wet, the ground temperature will decrease, and the poor air permeability of the soil will also affect the rooting of cuttings. Strengthen fertilizer and water management after cuttings take root. In the first half of July, the seedlings enter the stage of rapid growth, and then the quick-acting fertilizer should be applied 2-3 times. In order to make the branches fully mature, irrigation and fertilization should be stopped or reduced from late July to August, and at the same time, pest control should be strengthened, and the main shoots and auxiliary shoots should be cored to ensure the healthy growth of seedlings and promote the growth of strong seedlings. During the growth of seedlings, it is necessary to plough and weed in time, improve soil ventilation conditions and promote root growth.
Cutting in the open field is the simplest way to raise seedlings with low cost.
1. Young trees should be pruned according to the principle of "giving priority to lightness, paying equal attention to modeling and results, and promoting early yield increase". (1) 2-4-year-old young trees, under the premise of arranging backbone branches, the key point of pruning is to clean up a layer of tightly squeezed branches and straighten the tree shape. According to the planting density, the small crown sparse layer shape (less than 80 plants per mu) and free spinning cocoon shape (more than 80 plants per mu) can be popularized. Small crown and sparse layer shape: select 3-4 main branches in the first layer, clean up the dense branches that affect the growth of the main branches after selection, and clean up 1-2 branches every year, and strive to clean them up in 2 years. Free-spinning reeling shape: 3-4 small main branches are selected every year, and the spacing between the main branches is about 20 cm, and the branches that are too dense are properly loosened. (2) 5-8-year-old young trees have entered the fruiting stage, and the key point of pruning is to clean up the dense branches between layers, improve the lighting conditions of the trees, and make the fruiting parts gradually transition to the backbone branches. Clean up 2-3 crowded places every year, and strive to clean them up in 3 years. After several years of adjustment and cleaning, five main branches, 1-2 auxiliary branches and 10- 13 main branches were preserved in the sparse layer of small crown.
2. Pruning of adult trees The purpose of pruning of adult trees is to "improve the illumination, improve the quality of branches, stabilize the quality and increase the yield". The key point of pruning is to remove two layers of excessively dense large auxiliary branches, large lateral branches and large branches in batches, so that the large branches remaining in two or more layers extend outward as much as possible in a whip shape, and the total branches account for less than 20% of the total branches of the whole tree, which is beneficial to the illumination in the inner room of the first floor. If the crown of the tree is on the high side, it is necessary to gradually bow your head and be happy by the strength of the tree, and the height of the tree should be controlled below 3.5 meters; If the crown has crossed, the densely packed branches should be drained or transformed into small branches, and the branches should be shortened to slow down the outside and promote the inside, or the direction and angle of the main branches should be changed by changing the main branches, so that the crown distance should be kept at about 1 m to improve the lighting conditions of the population and individuals.
Second, cut off the diseased branches and insect branches. According to the survey, many diseases and insect pests that harm apples overwinter on the branches. For the diseases and pests that overwinter in trees, combining with winter shears, all branches of diseases and pests are cut off, burned or buried deeply, which can obviously reduce the harm in the coming year.
Third, the rough old bark in the gap between the rough old bark and trunk of fruit trees, there are often a large number of overwintering bacteria and pests. Scraping rough old bark, burning or burying it deeply has a good control effect on many kinds of pests and diseases, and sometimes even completely eliminates some pests.
Apple is a beauty product, which can not only lose weight, but also make the skin smooth and tender. Apple is a low-calorie food, every 10.
0 g only produces 60 kilocalories; The nutrients in apples are soluble and easily absorbed by the human body, so they are called "living water", which is beneficial to dissolve sulfur and make the skin smooth and tender. Apple contains copper, iodine, manganese, zinc, potassium and other elements. Without these elements, the skin will be dry, fragile and itchy.
Vitamin C in apples is a protector of cardiovascular system and a healthy element for patients with heart disease.
People who eat more apples are much less likely to catch a cold than those who don't eat or eat less apples. Therefore, some scientists and doctors call apples "all-round healthy fruits" or "general practitioners". The air pollution is serious. Eating more apples can improve the respiratory system and lung function and protect the lungs from dust and smoke in the air. ? [7]?
Pectin: It belongs to soluble fiber, which promotes cholesterol metabolism, lowers cholesterol level and promotes fat excretion.
Trace elements: potassium dilates blood vessels, which is beneficial to patients with hypertension; Zinc deficiency will lead to disorder of blood sugar metabolism and decline of sexual function.
Can regulate the stomach: fiber helps to excrete; It also has astringent effect on diarrhea.
Apple peel+a few slices of ginger boiled water: it can stop vomiting.
It can reduce the coldness of pears and strengthen moistening the lungs and stomach.
Autumn lung moistening syrup: apple/pear+1 lily+Dendrobium 15g+ apricot 9 ... [7]?
The platform has been greatly improved, which is also a big difference between LGA 1366 flagship platform and other platforms in positioning.
As the representative of high-end flagship, the processors of LGA 1366 interface mainly include 45nm Bloomfield Core i7 quad-core processors. With the 20 10 Intel entering the 32nm process, the representative of the high-end flagship was replaced by the Core i7-980X processor. The brand-new 32nm process solves the six-core technology and has the most powerful performance. For users who are ready to build a high-end platform, LGA 1366 still occupies the high-end market, and Core i7-980X and Core i7-950 are still good choices.
Core i5 is a quad-core processor based on Nehalem architecture, which adopts integrated memory controller and three-level cache mode, L3 reaches 8MB, and supports the new processor computer configuration of Turbo Boost and other technologies. The main difference between it and Core i7(Bloomfield) is that the bus does not use QPI, but uses mature DMI (Direct Media Interface), and only supports dual-channel DDR3 memory. LGA 1 156 interface is adopted in the structure, and i5 has turbo technology, which can overclock under certain conditions. The processors with LGA 1 156 interface cover different users from entry-level to high-end, and the 32nm process brings lower power consumption and better performance. The mainstream representative is Core i5-650/760, and the middle and high-end representative is Core i7-870/870K. We can clearly see Intel's positioning distinction in product naming. But overall, the high-end LGA 1 156 processor is more worth buying than the low-end entry. Faced with AMD's low-cost strategy, Intel Core i3 series processors can't match it in cost performance. The performance of LGA 1 156 high-end products is more eye-catching.
Core i3 can be regarded as a further simplified version (or castrated version) of Core i5, and there will be a 32nm process version (development code-named Clarkdale, based on Westmere architecture). The biggest feature of Core i3 is the integration of GPU (graphics processor), which means that Core i3 will be encapsulated by two cores: CPU and GPU. Due to the limited performance of integrated GPU, users can add graphics cards if they want to get better 3D performance. It is worth noting that even in Clarkdale, the manufacturing process of the display core will still be 45 nanometers. The biggest difference between i3 i5 is that i3 has no turbo technology. Represented by Core i3-530/540.
20 10 in June, Intel once again released the revolutionary processor-the second generation Core i3/i5/i7. The second-generation Core i3/i5/i7 belongs to the second-generation intelligent Core family, all of which are based on the brand-new Sandy Bridge micro-architecture. Compared with the first generation products, it mainly brings five important innovations: 1, and adopts a brand-new 32nm Sandy Bridge micro-architecture, with lower power consumption and stronger performance. 2, built-in high-performance GPU (core graphics card), video coding, graphics performance is stronger. 3, Turbo Boost Technology 2.0, smarter and more efficient. 4. A new ring architecture is introduced, which brings higher bandwidth and lower delay. 5. Brand-new AVX and AES instruction sets strengthen floating-point operation and encryption and decryption operation.
SNB(Sandy Bridge) is a new generation of processor microarchitecture released by Intel at the beginning of 20 1 1. The greatest significance of this architecture lies in redefining the concept of "integrated platform", and the "core graphics card" seamlessly integrated with the processor ends the era of "integrated graphics card". This pioneering work benefits from the brand-new 32 nm manufacturing process. Because the processor under the framework of Sandy Bridge adopts a more advanced 32nm manufacturing process than the previous 45nm process, the power consumption of CPU is further reduced theoretically, and the circuit size and performance are significantly optimized, which creates favorable conditions for the integrated graphics core (core graphics card) and CPU to be packaged on the same substrate. In addition, the second-generation Core also added a brand-new high-definition video processing unit. The speed of video conversion and decoding is directly related to the processor. Due to the addition of high-definition video processing unit, the video processing time of the new generation Core processor is at least 30% longer than that of the old processor. The new generation of Sandy Bridge processor adopts a new interface design of LGA 1 155, which is not compatible with LGA 1 156. Sandy Bridge is a new micro-architecture, which will replace Nehalem, but will still adopt 32 nm process. What's more attractive is that this time, Intel no longer uses "glue" to stick the CPU core and GPU core together, but really combines them into one.
20 12 Beijing planetarium on the afternoon of April 24th, Intel officially released the Ivy Bridge (IVB) processor. 22nm Ivy Bridge will double the number of execution units to a maximum of 24, which will naturally bring about a further leap in performance. Ivy Bridge will add an integrated graphics card supporting DX 1 1. In addition, the newly added XHCI USB3.0 controller * * * enjoys four channels, so it can provide up to four USB3.0, thus supporting native USB 3.0. The production of cpu adopts 3D transistor technology, and the power consumption of CPU will be reduced by half. Ivy Bridge products with 22nm technology will continue the service life of LGA 1 155 platform, so users who intend to buy LGA 1 155 platform will not have to worry about interface upgrade for at least one year.
On June 4th, 20 13, Intel released the fourth-generation CPU "haswell". The pins (CPU sockets) of the fourth-generation CPU were named Intel LGA 1 150, and the motherboards were named eight series chipsets such as Z87, H87 and Q87, among which Z87 was an overclocking player and a high-end customer base. Haswell CPU will be used for laptop, desktop CEO package and DIY component CPU, replacing the current third-generation Ivy Bridge.
1. Young trees should be pruned according to the principle of "giving priority to lightness, paying equal attention to modeling and results, and promoting early yield increase". (1) 2-4-year-old young trees, under the premise of arranging backbone branches, the key point of pruning is to clean up a layer of tightly squeezed branches and straighten the tree shape. According to the planting density, the small crown sparse layer shape (less than 80 plants per mu) and free spinning cocoon shape (more than 80 plants per mu) can be popularized. Small crown and sparse layer shape: select 3-4 main branches in the first layer, clean up the dense branches that affect the growth of the main branches after selection, and clean up 1-2 branches every year, and strive to clean them up in 2 years. Free-spinning reeling shape: 3-4 small main branches are selected every year, and the spacing between the main branches is about 20 cm, and the branches that are too dense are properly loosened. (2) 5-8-year-old young trees have entered the fruiting stage, and the key point of pruning is to clean up the dense branches between layers, improve the lighting conditions of the trees, and make the fruiting parts gradually transition to the backbone branches. Clean up 2-3 crowded places every year, and strive to clean them up in 3 years. After several years of adjustment and cleaning, five main branches, 1-2 auxiliary branches and 10- 13 main branches were preserved in the sparse layer of small crown.
2. Pruning of adult trees The purpose of pruning of adult trees is to "improve the illumination, improve the quality of branches, stabilize the quality and increase the yield". The key point of pruning is to remove two layers of excessively dense large auxiliary branches, large lateral branches and large branches in batches, so that the large branches remaining in two or more layers extend outward as much as possible in a whip shape, and the total branches account for less than 20% of the total branches of the whole tree, which is beneficial to the illumination in the inner room of the first floor. If the crown of the tree is on the high side, it is necessary to gradually bow your head and be happy by the strength of the tree, and the height of the tree should be controlled below 3.5 meters; If the crown has crossed, the densely packed branches should be drained or transformed into small branches, and the branches should be shortened to slow down the outside and promote the inside, or the direction and angle of the main branches should be changed by changing the main branches, so that the crown distance should be kept at about 1 m to improve the lighting conditions of the population and individuals.
Second, cut off the diseased branches and insect branches. According to the survey, many diseases and insect pests that harm apples overwinter on the branches. For the diseases and pests that overwinter in trees, combining with winter shears, all branches of diseases and pests are cut off, burned or buried deeply, which can obviously reduce the harm in the coming year.
Third, the rough old bark in the gap between the rough old bark and trunk of fruit trees, there are often a large number of overwintering bacteria and pests. Scraping the rough old bark, burning it or burying it deeply is a safe dish for many kinds of old meat and pineapple beef.
3. Pineapple and eggs can't be eaten together. Protein in eggs is combined with fruit acid in pineapple, which easily coagulates protein and affects digestion.
4, pineapple and honey can be eaten at the same time, pineapple honey soup can cure bronchitis. However, people who are unwell or have diarrhea symptoms are advised not to eat like this. ? [7]?
Pineapple flowers germinate, grow and bloom brilliantly. No distractions, no boundaries, even places, we must go deep into the essence. This belief in pursuing perfection has always been accompanied by pineapple flowers. There are many small flowers densely clustered on the stem, forming a thick spike, and the bracts at the top of the spike extend radially. Every little flower is a star. Flowers are yellow, light green, pink and white. Pineapple is a very beautiful indoor potted flower, which can enjoy flowers and leaves. With its rosette-like plant type, bright ear color and long flowering period, it has gradually become the "darling" of the New Year flower market.
Gift-giving etiquette: paper towels are laid in the flower basket, and tropical fruits such as pineapple, lily and boiled pineapple are put inside.
The origin of the name
First of all, the origin of pineapple is related to paramita (honey), which is a Buddhist term in Chinese and refers to reaching the other side; The second refers to a tropical fruit, which is now standardized as jackfruit. Jackfruit (or jackfruit, honey) is a tropical fruit, which originated in India and was introduced to Southeast Asia and China very early (it was introduced in the Tang Dynasty and the Southern and Northern Dynasties). Today, it is also called wood pineapple, tree pineapple and river snail. Paramita is related to Buddhism, a great religion, which originated in India and then spread to China and China. Paramim is a combination of transliteration and free translation of Sanskrit. The original translation of paramita omits the word "duo". It is said that the paramita of fruit trees is called paramita because of its large fruit (such as wax gourd) and sweet taste.
Secondly, pineapple is also closely related to Buddhist statues with paramita. Anyone who has personally peeled and eaten pineapple will know that there are many hexagonal (or hexagonal) thorns or sunflower thorns on the shell of pineapple fruit, that is, the remains of small flowers, which are quite like the hair bun of Buddha and Bodhisattva statues (such as Leshan Giant Buddha, Dazu Stone Carved Buddha and various stone carved Buddha statues). In the history of Buddhism, most stone statues of Buddha statues are different from Buddhist monks and nuns in life, and they are generally shaved. Most Buddha statues are made of hair and combed into a bun. Of course, there are hats, headscarves and bald heads. It is conceivable that the ancient people in China, influenced by Buddhism, called this American fruit introduced by westerners paramita, later referred to as Poirot.
Thirdly, there was a man named Kyle Poirot, who had a great influence in the history of cultural exchange between China and the West. He comes from Italy. He came to China in the early Yuan Dynasty and stayed in China for more than ten years. After coming back, he wrote a book, The Travels of Marco Polo, which aroused great interest and eager yearning of westerners for China. So calling this fruit pineapple (Poirot) is a bit foreign, which is consistent with its spread from the west (people).
When American pineapple was first introduced, it was confused with jackfruit imported from India and Southeast Asia. But these two tropical fruits are very different, so people gradually separate their names. Li said in Volume XIII of Notes on South Vietnam during the reign of Emperor Qianlong of Qing Dynasty: "Fancun in the middle of Guangdong Province is planted with mountainous Boluo along the road, with a fist-like horizontal stem and prickly leaves, which is full of balance." It is known that the jackfruit of American fruit has been reduced to Poirot at this time; The word "mountain" is added in front of it, which means it can be planted on the hillside. Wu Qi of Daoguang period in Qing Dynasty said in Volume 31 of Textual Research on Plant Names: "Loudou produces fruit 100 east, which is Poirot". He went on to say, "Also known as Fanlouzi, it looks like an orchid with dense leaves and stems. Its leaves are peeled and stored with tendons, that is, polonium. " This may be the earliest record called Poirot alone.
The word "pineapple" may first appear in the third volume of Yin Zheng Ti Yao by Gao Jingting in Jiaqing, Qing Dynasty, but it was not explained. So at this time, Poirot has begun to be added with grass heads by literati, indicating that it is a plant and a fruit. Polo is a sequel to Ci Yuan and a revised edition of Ci Hai published in the Republic of China, and its interpretation has been nearly contemporary. It can be seen that the Republic of China was simplified to Poirot. It was not until the dictionaries and dictionaries published after liberation that it was officially defined as "pineapple". ? [8]?
Name discussion
Pineapple is one of the four tropical fruits in the world (the other three are bananas, coconuts and mangoes), ranking second. Pineapple originated in America and was introduced in Ming and Qing Dynasties, which was deeply loved by Chinese people. China is one of the main producers and consumers of pineapple. However, there are many differences in the appellation of pineapple in modern Chinese, which need to be standardized and unified.
Modern Chinese Dictionary, the most commonly used and authoritative Chinese dictionary in China (edited by the Dictionary Office of Institute of Linguistics, Chinese Academy of Social Sciences, revised by the Commercial Press, 1997 edition), contains "pineapple", but it is only interpreted as "wind pear"; There is also a "jackfruit" article explaining the text.