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本实验胶丸种子是用海藻酸钠包衣的自然种子。它除了能提高抗旱性外,还能增强种子的抗冷性。实验进行冷处理的温度为1～5℃,处理时间随各类种子对低温的敏感程度不同而异。高浓度胶丸种子比低浓度胶丸的保温效果好。例如,黄瓜种子置于1～3℃中冷浸11天后,3%及6%胶丸种子发芽率分别为56.0%及74.7%,但高浓度胶丸种子的制作工艺难度较大,有待进一步探索。经过包埋的胶丸种子与未包埋的对照种子相比较,冷浸后的发芽率提高0.2～1倍多。幼苗长势也优于对照。以渗透调节剂、杀菌剂、生长激素及无机盐的混合液制成的胶丸种子抗冷效果良好。实验证明,胶丸种子抗冷性之所以能提高,是由于其种子的ATP含量高,种子内源乙烯含量增高,电导率下降所致。因此,胶丸种子作为一项抗冷措施可望应用于生产。
The experimental capsule seed is a natural seed coated with sodium alginate. In addition to improving drought resistance, it also enhances seed chilling resistance. The temperature of experiment cold treatment is 1 ~ 5 ℃, the treatment time varies with the sensitivity of different kinds of seeds to low temperature. High concentration of plastic seed capsules than the low concentration of thermal insulation effect is good. For example, the seed germination rates of cucumber seeds at 3 ℃ and 6% were 56.0% and 74.7% respectively after being soaked in 1 ~ 3 ℃ for 11 days. However, the production of high-concentration capsules was difficult to be further explored . The germination rate of the encapsulated rubber seeds increased by 0.2 ~ 1 times compared with that of the non-embedded control seeds after cold soaking. Seedling growth also better than the control. Capsule seed made of a mixture of osmotic regulator, bactericide, growth hormone and inorganic salt has good anti-cold effect. Experiments show that the reason why the capsule seed cold resistance can be increased due to its high ATP content of seeds, seed endogenous ethylene content increased, due to decreased conductivity. Therefore, the rubber seeds as a cold measure is expected to be applied to the production.