【製品名(商品名)】
T-CHAN ICHIGO, とちあいか（栃木i37号）
【種類】
Fragaria × ananassa Duchesne ex Rozier
【生産地】
栃木県（Tochigi strawberry farm）
【名前の由来】
It was probably named with the desire to become the fruit of Tochigi, which is loved all over the country.
【主な特徴】
At the end of 2021, JA Zen-Noh Tochigi began exporting to Southeast Asia this month in order to expand the sales channel of the new strawberry variety “Tochiaika STRAWBERRY” produced in the prefecture. It seems that it was the first time to export overseas. It seems that about 160 packs have been shipped to Singapore from JA Shionoya, which has jurisdiction over Sakura City and Yaita City. JA Zen-Noh Tochigi has been working on a trial export of the original strawberry variety “Tochiaika STRAWBERRY” from Tochigi prefecture from this term. On December 27, it will be shipped from the collection and shipping area of the Ujiie District Center to Southeast Asia such as Singapore. It seems that the shipped strawberries will be inspected in Osaka, then transported by airmail, and will be lined up at local stores in 3 to 4 days. Test exports are currently being carried out at JA Shionoya and JA Utsunomiya. Export destination countries are Singapore, Malaysia and Cambodia, and exports are shipped about three times a week. In addition, Tochiaika is very popular among farmers due to its high yield, and the acreage planted in 2022 (Autumn 2021 to Spring 2022) has tripled from the previous year, and production is steadily expanding. Keeping the freshness of strawberries is the biggest issue, but Tochiika has a harder skin than other varieties and is less likely to be damaged, so it seems to be suitable for transportation. Tochigi Prefecture has set a target of 100 million yen in total exports of strawberries produced in the prefecture by 2025. According to JA Zen-Noh Tochigi, the 2021 season is expected to be about 2.6 billion yen, and the 2022 season is expected to be over 3 billion yen, and it is steadily spreading. In order to further expand the sales channel, the JA Group has started trial exports to Southeast Asia such as Singapore and Malaysia, and on December 27, a total of 80 cases, about 50 km, from the four collection points in JA Shionoya’s jurisdiction. Seems to have been loaded onto the truck. After that, the shipped “Tochiaika STRAWBERRY” was inspected in Osaka, and those that cleared the standards were exported to Southeast Asia by airmail. The trial export will continue until around May 2022, aiming for full-scale export by identifying issues related to transportation. Along with this, agricultural workers are working hard with the slogan of improving the Japanese economy with the aim of improving agriculture from a new perspective. Tochiaika STRAWBERRY: Applicant’s name and address Tochigi Prefecture (Hanawada, Utsunomiya City, Tochigi Prefecture) Application No. 33245 Date of application 2018/07/09 Date of publication of application 2018/11/13 Date of withdrawal Rejection Name of trainer, Mr. Yasuhiro Kobayashi, Mr. Takashi Shigeno, Mr. Takashi Ohashi, Mr. Akitsugu Hatakeyama, Mr. Kazunari Iimura, Mr. Tatsuro Nakanishi, Mr. Masaaki Ueki, Ms. Akina Toyoda, Ms. Asami Nagashima, Mr. Yoshinori Saito, Ms. Risa Tsurumi, Ms. Natsumi Kojima, Mr. Yukio Ohashi, Export There are restrictions on the actions to be taken, there is no designated country. It was also called the 10th original variety of Tochigi prefecture, also known as “Tochigi i37”. It is a completely new kind of strawberry that was first shipped from Tochigi in the fall of 2019. It seems that it was decided by the purchaser. The name was decided to be Tochiaika, which received the most votes from Tochiaika, Tochiakari, Tochimaru, Tochireiwa, Emika, and Amane. Tochiaika was filed for variety registration in 2018 by the Tochigi Prefectural Agricultural Experiment Station Ichigo Research Institute (Tochigi City). The grains are relatively large, have little acidity, and have a strong sweetness, and are characterized by a hard texture as a strawberry. The inside of the fruit is white. The yield per unit area is 30% higher than that of Tochiotome, which makes it easier to cultivate. The most famous variety from Tochigi is “Tochiotome STRAWBERRY”, but it seems that farmers were worried about being susceptible to the disease “chloranemia（Fusarium oxysporum Schlechtendahl: Fries f.sp. fragariae Winks et Williams）（It is a type of filamentous fungus and is transmitted from the roots of strawberries. When the disease develops, the new leaves turn yellow-green, twist in a boat shape, and 1-2 of the 3 leaflets become smaller. When the crown of the diseased strain was cut, part or all of the vascular bundle turned brown. When it occurs in the parent strain of the nursery, the number of runners that occur decreases, and malformed leaves also occur in the new leaves of the runners. When it occurs during the harvest season, fruit set is reduced and fruit enlargement is worsened. The optimum temperature for growth of pathogens is around 28 ° C, and the optimum soil temperature for disease onset is 25 to 30 ° C. It spreads by soil transmission and seedling transmission (latent infection), and is secondarily transmitted by splashing of water droplets due to rainfall or overhead irrigation. I’ve heard that continuous cropping of strawberries in the field where this disease occurred will increase the damage. It seems to be a relatively new disease discovered in 1970. At first, one or two leaflets of new leaves turn yellowish green, and they are miniaturized and rolled into a boat shape. The leaves that develop after that also become malformed, and the entire plant becomes significantly poorly grown. The leaves are lifeless, exhibit yellowing, and are purplish-red, and the entire plant may die. When it occurs in the parent strain of the nursery, the number of runners is reduced, and the new leaves of the runners are also malformed. When it occurs during the harvest season, fruit set is reduced and fruit enlargement is also worsened. It may wither before showing yellowing or malformations of new leaves (acute symptoms). When the crown is cut, part or all of the vascular bundle is discolored from brown to dark brown, and most of the roots are also dark brown, and many of them are rotten. Mild strains seem to have no symptoms at low temperatures. Pathogens only affect strawberries. It forms large conidia, small conidia, and chlamydospores, and mainly chlamydospores remain in the soil and become a source of infection. They invade from the roots of strawberries, invade conduits, and become infected. Chlamydospores survive in soil for long periods of 4-5 years or longer. The optimum temperature for growth is around 28 ° C. In addition to soil transmission, when a lightly damaged strain is used as the parent strain, the fungus is transferred to the seedlings through the runner, and it seems that seedling transmission is often carried out. The optimum soil temperature for disease onset is 25 to 30 ° C, and it is easy to get infected and get sick in the high temperature period, but it seems that the symptoms may become unclear in the very hot midsummer. It is said that it is easy to get sick in continuous cropping fields, fields with large difference in soil dryness, fields with low pH, and fields where a large amount of undecomposed organic matter is applied. When the generated field strain is used as the parent strain, the disease of runners and seedlings collected from them increases. There are differences in the onset of illness depending on the variety, and it seems that the early life of treasure is extremely weak. Compared to Wase Hoko（I heard that the origin of the name is “Hoko STRAWBERRY”, which is a variety crossed in Takarazuka, Hyogo Prefecture, and “Wase”, which is a variety that can be shipped earlier than other varieties at the time of development. Both the skin and flesh are soft and juicy. It is a standard variety of outdoor cultivation by cross breeding of “Kogyoku” × “Tahoe”. In forcing cultivation, it seems necessary to maintain the grass vigor by lighting and heating.）, female peaks, Tochiotome, Sagahonoka（Application number 9676 Date of application 1997/03/26 Date of publication of application 1999/03/18 Registration number 8839. Onishiki（Registration No. 2279 Registration Date June 13,1990. The date of extinction of breeder’s rights is June 14, 1993, and the deadline for registering varieties is 15 years. Variety registrant, Mikado Breeding Farm Co., Ltd., Chuo Ward, Chiba City, Chiba Prefecture) × Toyonoka STRAWBERRY（Application number 811 Date of application 1983/03/29 Registration number 615. “Himiko (former strain name, Strawberry Kurume No. 36, certification date, May 1975)” ✕ “Harunoka (Ichigo Norin No. 11, old strain name, Forcing No. 4, certification date, July 1967)” It was selected and cultivated by mating. The fruits have a good appearance, a strong sweetness, and an extremely excellent aroma, and are varieties that can be produced early with a high early yield and are suitable for forcing and semi-forcing cultivation. The grass is medium, the grass is strong, and the grass is high. The leaf color is dark green, the leaf shape is flat, and the leaf thickness is thick. The leaflets are large in size and the number of leaves is rather small. The number of runners is rather large, the color of the runners is light red, and the thickness of the runners is slightly thick. The size of the flower is rather large, and the difficulty of detaching the flower ben is a little easy. The fruit shape is a cone, the fruit size is large, the skin color is bright red, the fruit gloss is good, the flesh color is yellowish white, and the fruit heart color is white. There is no fruit neck, the number of fruits is medium, and the fruit is being dropped a little. The size of the calyx relative to the fruit shape is large. The hardness of the fruit is a little hard, the content of soluble solids is high, the acidity is a little low, and the aroma of the fruit is quite high. The flower bud differentiation stage, flowering beginning stage and maturity stage are all early. Dormancy is fairly short. The shelf life is rather long, and the transportability is high. Compared to “Harunoka”, it has a lot of fruit scent, and the fruit has a good luster. It is said that sex is recognized. Date of registration, 09/05/1984, Duration of breeders’rights, 15 years, Date of extinction of breeders’ rights, 09/06/1999. It was cultivated by crossing Variety registrant, Vegetable and Tea Industry Experiment Station, Ano Town, Aki District, Mie Prefecture (currently Tsu City)). It is a cultivar suitable for forcing cultivation, which is pyramidal, large and hard. The shape of the grass is upright, the grass is strong, the height of the grass is high, the number of divisions is small, and the runner（A method of growing seedlings by rooting the shoots that attach to the stems）The number is rather large. The leaf color is dark green, the leaf shape is upward, the leaflet size is quite large, the number of leaves is a little small, and the petiole thickness is quite thick. The color of the pericarp is bright red, the shape of the fruit is a cone, the size of the fruit is large, the color of the flesh and the heart of the fruit is white, the gloss of the fruit is good, and the groove of the fruit is small. The size of the flower is large, the color of the petals is white, the number of flowers per inflorescence is quite small, and the thickness of the peduncle is thick. The hardness of the fruit is hard, there is almost no seedless band, the depression of the fruit is decreasing, the anthocyanin coloring of the fruit is slightly light, the number of fruit is coarse, and the aroma of the fruit is slightly high. Seasonality is one season（It bears fruit from winter to spring and does not bear fruit after that）, Early flowering and maturity, flowering position is at the same level as leaves, soluble solid content is high, acidity is low, and shelf life is long. Compared to “Toyonoka”, the grass shape is upright, the flesh color is white, there are few fruit grooves, etc., and the leaflets are larger than “Sachinoka”. It is said that the distinction is recognized by the fact that the flesh color is white and that the fruit has a large drop. Registration date 2001/03/19 The duration of breeder’s rights is 20 years. Variety registrant, Saga City, Saga Prefecture, Registered cultivar breeder, Mr. Tanaka, Mr. Mori, Mr. Nakajima, Mr. Matsuo, Mr. Tanaka, Mr. Nakamura. It was born in 1998, and now that the production technology has been established, it is licensed outside the prefecture without monopolizing the varieties. It is conical and well-aligned, and the flesh is bright red and white with a glossy finish. Ideal sweetness with less sourness and cleanliness. It has a faint floral scent and is suitable for transportation.）, etc. are less susceptible to disease, but they seem to be more likely to develop the disease in contaminated fields with high bacterial density.）”, which is said to be the natural enemy of strawberries. Therefore, after repeated research at the Tochigi Prefectural Agricultural Experiment Station Ichigo Research Institute, we finally developed a long-awaited variety that is resistant to diseases. The characteristic of Tochiaika is its sweetness. The sugar content is about the same as Tochiotome, but the sweetness is more pronounced due to the less sourness. Very fragrant and juicy. The size is between Tochiotome STRAWBERRY and Skyberry, but it seems to grow into a large ball size that looks good. The remaining two houses are cultivated in soil, and it seems that it is also a place for demonstration experiments to confirm which is more suitable for cultivation than hydroponics. It is hard to get sick, has cold resistance, is highly environmentally friendly, and is easy to cultivate, so it seems to be a variety suitable for people with little cultivation history and new farmers. In addition, the flowers grow quickly and bloom continuously, so the fruits are produced one after another, and stable yields and increased yields can be expected. Furthermore, it is said that the long harvest period from the end of October to the beginning of June is a great advantage for producers. “Strawberry” in Tochigi Prefecture, which developed Tochiaika, boasts the highest production volume and sales value in Japan, and “Tochiotome STRAWBERRY” developed by this prefecture currently occupies 30% of the strawberry acreage in Japan. That’s it. Aiming for further development of “Strawberry Kingdom Tochigi”, the first “Strawberry Research Institute” in Japan was opened on October 1, 2008. As a comprehensive R & D base for strawberries, which is equipped with functions such as research and analysis of consumption trends and training, in addition to fostering new varieties and developing new technologies that will lead the next generation, not only local governments but also the national government And supports the world.
The sugar content is about the same as Tochiotome STRAWBERRY, but the sweetness stands out because of the low acidity. It is fragrant, juicy, and medium in size between Tochiotome and Skyberry, but seems to grow to a large ball size that looks great. Tochigi Agricultural Product Marketing Association In such cases, it seems that they are conducting a demonstration experiment to compare soil cultivation with hydroponics and confirm which is more suitable for cultivation. Tochiaika STRAWBERRY is highly environmentally friendly and easy to cultivate, as it is less susceptible to disease and cold resistance, so it is suitable for people with little cultivation history and new farmers, and seems to be an excellent variety. In addition, it seems to be an epoch-making agricultural product that grows quickly and blooms well continuously, so it bears fruit one after another and a stable yield can be expected. In addition, although it is a cute name that impresses consumers, in the name voting campaign that started in the fall of 2019, six candidates “Tochiaika” “Tochiakari” “Tochimaru” “Tochireiwa” “Emika” “Akine” was selected by a consumer vote. Of the total of 8,780 votes, “Tochiaika STRAWBERRY” collected 2,782 votes, which seems to be 940 votes behind the second-placed “Tochiakari”.
Speaking of strawberries in Tochigi prefecture, “Tochiotome strawberry” and “Skyberry strawberry” are famous, but the new variety “Tochiaika strawberry” is still a new variety, but its popularity is increasing. “Tochiaika strawberry” is an original variety of the prefecture developed in 2018, and its sweetness stands out, and the firm texture filled with fruits is unbearable. The grain is a beautiful triangular cone with a large roundness, and when cut vertically, it becomes a heart shape, so it seems to be talked about as cute mainly for women even in the Social networking service.
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