种子能否贮藏好,与它所含水分多少有极为密切的关系。根据种子与水分结合的程度及水在种子里存在的状态、性质,可把种子水分分成自由水和结合水。自由水,存在于种子的毛细管之间。呈游离状态,很不稳定,具有一般水的性质,在0℃时会结冰,能随外界温度和湿度的变化而吸收增加或蒸发减少。种子里面各种化学反应主要是靠自由水进行。因此,在种子贮 Seeds can be stored well, and it contains much moisture has a very close relationship. According to the degree of seed and water combined with water in the seeds of the existence of the state, the nature of the seeds can be divided into free water and water combined. Free water exists between the seeds’ capillaries. Free state, very unstable, with the general nature of the water, will be frozen at 0 ℃, with changes in temperature and humidity outside the absorption increase or decrease evaporation. Inside the seeds of various chemical reactions are mainly by free water. Therefore, in the seed storage