hilum

Japanese: hilum
hilum

…the surface of the seed is often covered with a cuticle or other substance. Water is not absorbed from the entire surface, but mainly from the area near the embryo or the part where the seed was originally attached to the placenta (hilum). The first stage of the germination process, that is, the period before the embryo begins to grow with cell proliferation, is called the imbibition period, and in many cases the imbibition of the seed embryo is divided into three periods: …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…種子の表面はクチクラなどでおおわれていることが多い。水は表面全体から吸われるのではなく,おもに胚の付近または種子がもと胎座についていた部分(へそhilum)から入っていく。発芽過程の最初の段階,すなわち胚が細胞の増殖を伴って生長を始めるより前の発芽の始動期は吸水期imbibition periodと呼ばれ,多くの場合種子胚の吸水は次の三つの時期に分けられる。…

※「hilum」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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