Create two new varieties of cherry.

Yamagata was successful in collaboration with RIKEN JFC Ishii farm to be irradiated in a circular accelerator called a heavy ion beam radiation to double cherry, create two new varieties of cherry. Last month, I filed a variety registration in the Ministry of Agriculture, Forestry and Fisheries.

Honor of Dr. Yoshio Nishina circular accelerator physicist who made Japan's first two varieties each were named "result Nishina spring (much)" and "Komachi Nishina".

Spring fruit flowers Nishina is as large as 4.1 to 4.2 cm, with double flower pieces of 23-25​​, the number of small, sweet petals bear fruit after flowering. Flowers and small 1.3 to 1.4 cm, in one of five heavy bloom, flower does not open completely uncommon, Komachi Nishina number of petals is shaped like a cherry blossom paper lantern.

In 2006, a book about 20 branches of flowers "Shungetsu" is a kind of double cherry, irradiated with accelerated carbon ions that remove electrons from carbon atoms, destroying a part of the gene. To flowering by grafting branches, seeds were obtained by crossing each other. Was brought up this wound in 2009, flowering in April this year. It was found from the shape of the flower and the new breed.

Team leader Abe speak Radiation Biology, RIKEN "able to produce new varieties in a short period of time if you use heavy ion beams. Want to apply in the future, such as rice and".

New varieties I'm done easily by applying a heavy ion beams. However, considering the years it is hard to extract the seeds by crossing to open a flower grafted onto it, to put a flower grow until it sowed. Research is steady, I want you to create something useful to continue.



八重桜に重イオンビームと呼ばれる放射線を円形加速器で照射し、サクラの新品種を２つ作り出すことに理化学研究所とＪＦＣ石井農場（山形市）が共同で成功した。農林水産省に先月、品種登録を出願した。
　２品種は日本初の円形加速器を作った物理学者の仁科芳雄博士にちなみ、それぞれ「仁科春果（はるか）」「仁科小町」と名付けた。
　仁科春果は花が４・１～４・２センチと大きく、花弁数が２３～２５枚の八重咲きで、開花後に小さく甘い実をつける。仁科小町は花が１・３～１・４センチと小さく、花弁数が５枚の一重咲きで、サクラでは珍しく花が完全に開かず、ぼんぼりのような形で咲く。
　２００６年、八重桜の一種である「春月花」の枝約２０本に、炭素原子から電子を取り除いた炭素イオンを加速して照射し、遺伝子の一部を破壊。枝を接ぎ木して開花させ、互いに交配して種子を得た。これを０９年にまいて育てたところ、今年４月に開花。花の形状から新品種と判明した。
　理研の阿部生物照射チームリーダーは「重イオンビームを使えば短期間で新品種を作り出せる。今後はイネなどでも応用したい」と話す。
　重イオンビームをを照射することによって簡単に新品種が出来上がるんですね。しかし、それを接木し花を開かせ交配して種を取り出し、それを蒔いて花を付けさせるまで育てる年月を考えるとたいへんですね。地道な研究ですが、継続し有益なものをつくりだして欲しいですね。