種子萌發是種子在適宜的水、溫、空氣條件下萌發的過程。在農業種植過程中，種子萌發的效果直接影響到種植效果。提高種子發芽率可以有效提高種子的利用率和生產效益的轉化效果。因此，種子萌發是農業領域廣泛關注的內容。種子發芽的條件是什么?在實驗中，人們通常使用種子發芽箱進行種(zhong)(zhong)子萌發(fa)實(shi)驗。種(zhong)(zhong)子發(fa)芽箱能提供種(zhong)(zhong)子生長所需的條件嗎(ma)?它們能被**控制嗎(ma)?

    種(zhong)(zhong)(zhong)子(zi)(zi)(zi)萌(meng)發(fa)(fa)(fa)的條件主要(yao)(yao)是水、溫度、空氣(qi)和(he)(he)光(guang)(guang)照(zhao)。首先，種(zhong)(zhong)(zhong)子(zi)(zi)(zi)發(fa)(fa)(fa)芽需要(yao)(yao)水。種(zhong)(zhong)(zhong)子(zi)(zi)(zi)吸收水分后，內部會發(fa)(fa)(fa)生一系列生理變化并萌(meng)發(fa)(fa)(fa);第二是溫度。只有在適當的溫度條件下，種(zhong)(zhong)(zhong)子(zi)(zi)(zi)才能順利(li)發(fa)(fa)(fa)芽，而種(zhong)(zhong)(zhong)子(zi)(zi)(zi)發(fa)(fa)(fa)芽所需的溫度并不均(jun)勻，但(dan)根據不同(tong)的品種(zhong)(zhong)(zhong)和(he)(he)產地有差異;第三是空氣(qi)。種(zhong)(zhong)(zhong)子(zi)(zi)(zi)發(fa)(fa)(fa)芽需要(yao)(yao)吸收足夠的氧(yang)(yang)氣(qi)，同(tong)時釋放二氧(yang)(yang)化碳;第四是光(guang)(guang)，但(dan)并不是所有的種(zhong)(zhong)(zhong)子(zi)(zi)(zi)發(fa)(fa)(fa)芽都需要(yao)(yao)光(guang)(guang)。大多(duo)數種(zhong)(zhong)(zhong)子(zi)(zi)(zi)在發(fa)(fa)(fa)芽前不需要(yao)(yao)光(guang)(guang)照(zhao)。

    要了(le)解(jie)種(zhong)(zhong)(zhong)子(zi)(zi)發(fa)(fa)芽(ya)需要什(shen)么(me)條(tiao)件，我(wo)們(men)只(zhi)需要在實際的(de)(de)測試和確(que)(que)(que)定(ding)過程中，根據(ju)不(bu)同種(zhong)(zhong)(zhong)子(zi)(zi)的(de)(de)發(fa)(fa)芽(ya)要求，創造這些(xie)條(tiao)件，就可以(yi)使種(zhong)(zhong)(zhong)子(zi)(zi)順利發(fa)(fa)芽(ya)，確(que)(que)(que)定(ding)種(zhong)(zhong)(zhong)子(zi)(zi)的(de)(de)發(fa)(fa)芽(ya)率。種(zhong)(zhong)(zhong)子(zi)(zi)發(fa)(fa)芽(ya)箱可以(yi)準確(que)(que)(que)控(kong)制(zhi)上述(shu)種(zhong)(zhong)(zhong)子(zi)(zi)萌發(fa)(fa)條(tiao)件。無論是炎熱的(de)(de)夏天(tian)還是寒冷的(de)(de)冬天(tian)，外(wai)界環境的(de)(de)變(bian)化都不(bu)會影響(xiang)種(zhong)(zhong)(zhong)子(zi)(zi)發(fa)(fa)芽(ya)箱中的(de)(de)種(zhong)(zhong)(zhong)子(zi)(zi)萌發(fa)(fa)。因此，有(you)(you)了(le)種(zhong)(zhong)(zhong)子(zi)(zi)發(fa)(fa)芽(ya)箱，可以(yi)隨時進行種(zhong)(zhong)(zhong)子(zi)(zi)萌發(fa)(fa)試驗，不(bu)受地域和季節(jie)的(de)(de)限制(zhi)，不(bu)僅大大提高(gao)了(le)效(xiao)率，而(er)且提高(gao)了(le)測定(ding)的(de)(de)準確(que)(que)(que)性(xing)，對發(fa)(fa)展優質種(zhong)(zhong)(zhong)子(zi)(zi)栽培具有(you)(you)重要意義。