winter habit

...This is a growth habit seen in some varieties of wheat, rapeseed, radish, etc., in which flower buds form, flower, and fruit even if the young plant is not exposed to low temperatures. On the other hand, if the plant is not exposed to low temperatures at that time, the stems and leaves will continue to grow, and the formation of flower buds, flowering, and fruiting will be delayed. This growth habit is called winter habit. Varieties with the former growth habit are called spring sown types, and varieties with the latter are called autumn sown types. ...

*Some of the terminology that mentions "winter habit" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…ムギ類，ナタネ，ダイコンなどの一部の品種にみられるもので，幼植物のときに低温にあわなくても，花芽を形成し開花，結実するような発育習性をいう。その逆にその時代に低温にあわないと，いつまでも茎葉ばかりが繁茂し，花芽の形成や開花，結実が遅れるような発育習性を秋まき性winter habitという。前者のような発育習性をもつ品種を春まき型，後者の品種を秋まき型と呼ぶ。…

※「winter habit」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