Thai Longan Fruit, Longan Out Off Season

Use of Ethephon and Monopotassiumphosphate Combined with Potassium Chlorate to Induce Off-season Flowering of Longan cv. Daw in Rainy Season

Study on using ethephon and monopotassiumphosphate combined with potassium chlorate to induce off-season flowering of longan cv. Daw in rainy season was carried out during 12 May 2010 to 15 December 2010. The experiment was designed base on completely randomized design (CRD) with 4 treatments and 5 replications as followed; 1) control (no potassium chlorate and no foliar spray with fertilizer) 2) soil drench with potassium chlorate at 15 g /m2 of canopy diameter 3) foliar spray with fertilizer 0-52-34 1% and ethephon 400 mg/L and 4) soil drench with potassium chlorate at 15 g /m2 combined with foliar spray with fertilizer 0-52-34 1% and ethephon 400 mg/L. The result revealed that longan plants treated with potassium chlorate at 15 g /m2 as soil drench combined with 1% of 0-52-34 and ethephon 400 mg/L was induced off-season flowering in rainy season and flowered ealier 7 days than only potassium chlorate treatment up to 7 days. Moreover, this treatment gave the highest percentage of flowering (86%), flower panicle type (100%), perfect flower (15%) and fruit setting (92%), while as only potassium chlorate treatment had the percentage of flowering (66%), flower panicle type (46%) and fruit setting (52%). However, the control treatment and only foliar spray with 1% of 0-52-34 and ethephon 400 mg/L treatment were not produced flower at all.
Refer:http://web.agri.cmu.ac.th/agjournal/content.asp?JID=118&CID=879

Longan and Medicinal Properties

Longan fruit contains hight amount of Ellagic acid which is a gallotannin. This tannin has strong antioxidant property and can accelerate the decline of cancer cells, without affecting normal cells.Dried longan flesh or seed extract can induce death of large intestinal cancer cells.
Furthermore longan seed also contains Elagic and curcitin which can help to prevent bone and tissue deterioration which is the cause of knee pain,knee deteriorate and muscle inflammaton. It helps to reduce blood vessel contraction caused by norepinephrine. Longan seed extracted can also inhibit malaria infection.
Additionally,they also found other types of lignin and polysaccharide substances which have anti-cancer properties and can stimulate body immunity against bacteria and Candida glabrata as well. Tannin is a very useful substance in easing diarrhea.It will bind to the protein of the organisms so that they can do no harm to our body.
Refer: Maejo Longan Research and Development Center

Longan Auspicious Fruit

Longan is a very sweet and juicy fruit grown mostly in Southeast Asian region such as China,Thailand and Vietnam Longan is consumed as fresh fruit, whole dry fruit or in various form of processed products such as cabbed longan,juice,etc. Longan is called"Long Yian"(Dragon eyes) in Chinese.The dragon is sacred animal in Chinese culture and it is believed that those who kill a dragon,and eat the dragon's scales will gain supernatural power.Eating the head,tail and eyes of the dragon will increase life energy.
The Chinese since , no matter rich or poor will eat at least two longan fruits during longan season to help enhance their life throughout the year.After that they will thrown the two longon seeds on the roof believing that longan seeds represent the dragon eyess, and will guard and protect them from calamity. The Chinese believe that longon has tonic properties for nourishing the heart and spleen.It is good for sick and unhealthy people such as women after giving birth or having heavy menstrual bleeding,convalescent patient,people with appetite loss or indegestion.It also help nourish our blood,assists with sleeping,and releases stress and anxiety.
According to the Thai traditional therapeutics,longon is a health-promoting fruit that helps people with poor nutrition,insomnia,forgetfulness and irregular heart beat. It helps treat diarrhea,nourishing body and mind and treat edema in women after giving birth.It also is suitable for persistent weakness and helps those suffering from insomnia and stomach problem including indigestion,gas and bloating,and white and thickened tongue.
Additional longan is a major source of energy due to its high sugar,protein and carbohydrate content.The Srichompoo variety has the the highest protein and sugar content of 8.5 and 52.4 g/kg respectively while variety E-Daw has the highest carbohydrate content of 885.2g/kg

Impact The Use Of Protasiem Chlorate

Impact the use of Protasiem chlorate. To induce flowering outside longan season if treated pro potassium chlorate excessive quantities. Longan to be destroyed. After each. The longan flowering. And small fruit. Or after the fruit harvest. Farmers needed to organic fertilizer, such as manure, cow manure is best will help eliminate potassium chlorate residues in the soil decays. It helps to restore the organic longan back quickly after the root hairs were completely destroyed. And the need to water the plant regularly, do not let the soil dry. To wet the soil all the time. It will make the fruit grow rapidly.

Preparation before the off-season longan.

Before pouring the substance Potassium chlorate to produce Longan out of season, we must be prepared early after the last harvest. With pruning. To encourage the young leaves at least two times to complete longan Ready for flowering. Yield and quality should be 2-5 middle canopy pruning branches off into the canopy to sunlight cut out some of the branches to the sun. Cut off the diseased branches to break the cycle of disease. Cut branches that overlap. Also, the younger the fruit is cut into triangular shapes. The height of the canopy is less than 4 meters around the canopy cut ends of branches on all four sides.

When cutting branches over two weeks until the fruit begins to form new leaves and bud again before pouring chemical fertilizer 8-24-24 one month before pouring potassium chlorate to produce Longan. Before poring potassium chlorate. Clean uder the canopy of trees. Weeding and mulch out. Then, using potassium chlorate at a concentration of at least 95%, puring around under the longan tree  measured from end of leave to 25 cm  and spray with water about 14 days, or the use of 5 kg  potassium chlorate per 200 liters of water and spray under the longan tree, approximately 30 to 45 day after pour potassium chlorate. Longan will flowering.

Planting Longan

 Planting longan. most appropriate time. early monsoon months from May to July. longan will be faster in the early stages. To grow well. Than in the other plant. After the rainy season, it will enter the winter period in the month. October to January. longan is growing rapidly and into the dry season. In February-April. Which must be managed bile. In years 1-2. The fruit, which is set to be saved and need for water in the dry season.

How to Grow Longan are three different formats. 

1. Planting longan interval is very popular from the past to the present. To a growing need to expand the size of longan canopy fully. Style up all square. And a rectangle. By the distance between the rows and the distance between such trees up to 8 feet 8x8 10x10 12x12 8x10 and 10x12 meters longan canopy, often with great size. Context devil dim the output high. In the beginning, we can grow other crops in between the rows of fruit added. Bordered income supplement such as mango, guava, longan than it can yield. We would be extra income too. Mix before planting. If longan grown gradually eliminated later. Or be planted together would not hurt. One side benefit also allows the wind to topple the longan easy, especially when a storm.

 2. Planting distance adjacent to maximize use of space. The planting distance was close to pruning, canopy control and use of potassium chlorate. Encourage flowering. Longan planting distance is close to the number of trees planted per acre higher. In a building adjacent to the garden produce is not widespread. Possibly due to a short lesson from fruit grown closer. Not successful in the past. Control is difficult because longan canopy pruning on flowering year is leap year. However, after the discovery of potassium chlorate induced flowering of longan have. Concept planting longan to close it back up again. Which form the wake longan term proximity are several types.

 2.1 Transplant phase aligned row Bermudian. submarines. was a form of planting similar cropping system away but with spacing narrower than a square spacing of 4x4 5x5 m or. Rectangle 3x6 4x6 m spacing, which can bring the machine into operation more convenient in the garden square.

 2.2. Aligned row planting distance pair is set to grow a pair of adjacent rows alternating with rows separated by a machine to perform a task. Number of trees per acre is increasing more and more space to increase productivity. But in a humid environment may cause an outbreak of diseases and insect pests of longan very

 2.3. Playing against a growing group is growing together to produce a group of techniques to control the canopy pruning. Increase the yield of fruits. 3. planting system level. longan cultivation systems that help prevent and reduce leaching. Or erosion of soil in areas with steep slopes. This alarm system is to be planted on areas with slopes less than

3. Percent of all distance of 100 meters to a height of 3 meters or more up or down to make up the level. Prepare the planting area need to be made, or steps. The elevation of the area where the plant is difficult to work in the garden than other methods.

Longan fruit out off-seasons the price is much better than Longan harvest on naturally.Because the demand on the market need more while productions is small amount not sufficient up to requirement of customer is high Due to the small amount of product ,while longan harvest on the naturally of productivity too much of each year.The Price of Longan is too low on the market that why many of the owner Longan plant doing and planing to Product Longan out of season. If it’s off-season longan production in the month. November to early February. The price is quite so good. Since the festival falls on Christmas Day, New Year and Chinese New Year. Most of the fruit out of season, so popular in the months from May to July. To be harvested in November and early February This is the market demand so high. And made popular during the off-season longan. November is the month prior to harvest the fruits of nature will come to market is the month from May to June. Forced to bloom early, so be prepared to complete. Before you pour the water project potassium chlorate. The rate of appropriate learning techniques and seed production in each season. To be successful. The off-season longan production procedure 1. The preparation and pruning. 2 to induce flowering. 3 treatment for yield and quality. 4 harvest and post harvest. It is important to prepare for the seed to stimulate the leaves and branches are completely ready to bloom. Productivity and quality. For pruning fruit should be cut as soon as possible after harvest. By cutting the main stem of the bush in the middle of the 2-3 tree to tree fruits. Receive more light. It also helps slow down the height of the tree. Then cut the branch or twig mast dew. Branches that are not light, branch is not complete. And cut the branches that are diseased or insect-damaged leaves. The remaining branches are about 60% of the canopy of the trees. The benefits of pruning are as follows. 1. Accelerate fruit bud This has resulted in fruit trees recover faster. The new act. To collect food for the flowers to the following season.