… Corn has many varieties and cultivars, but it is basically a cross-pollinated plant that is fertilized by the pollen of other individuals. In particular, the first generation of hybrids created by crossing different varieties can show a quality called "hybrid vigor," which shows superior characteristics to those of both parents. Varieties created using this are called hybrid corn (first generation hybrid corn), and they form the core of current cultivated varieties. Excellent hybrids have been obtained by crossing cultivars (varieties), such as a cross between a horsetooth variety and a hard-grain variety. … *Some of the terminology that refers to "first generation hybrid corn" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… トウモロコシは,多くの品種と品種群を分化させているが,基本的には他の個体の花粉によって受精する他家受粉植物で,とくに異なる品種間で交雑してできた雑種の1代目は,その両親の形質よりも優れた形質を示す〈雑種強勢〉と呼ばれる性質を示すことがある。これを利用して作られた品種をハイブリッドコーン(一代雑種トウモロコシ)と呼び,現在の栽培品種の中心となっている。馬歯種と硬粒種とを掛け合わせたものなど,品種群(変種)間の交雑によって優れたハイブリッドが得られている。… ※「一代雑種トウモロコシ」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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