论文部分内容阅读
1.外部性状目测法种子大小均匀,充实饱满,种皮富光泽,弹性好,其生活力就强,发芽率高;反之,其生活力差,发芽率也低。 2.分离胚、切割子叶、去皮或半粒发芽法基于破除种皮障碍能加速发芽进程,一般具有休眠特性的木本植物种子,分离出胚培养,凡有生活力者子叶开展、转绿;无生活力者很快霉烂。苹果、白蜡、松树等种子可用切割子叶快速发芽法,简化了剥胚手续,便于操作。去皮或半粒发芽法适用于豆类种子快速发芽,可避免易腐烂的弊病。 3.过氧化氢鉴定法将种子切开,用3%的H_2O_2溶液滴于种子切面,凡有气泡者,证明种子呼吸作用强,发芽率高。根据一定数量的试验,可得出发芽率。
1. Visual observation of external characters The seed size is uniform, full and full, the seed coat is rich in luster and good elasticity, and its vitality is strong and the germination rate is high; on the contrary, the life is poor and the germination rate is also low. 2. Separation of embryos, cutting cotyledons, peeled or semi-grain germination method based on breaking the seed coat barrier can speed up the process of germination, the general characteristics of dormancy seeds of woody plants, isolated embryo culture, where the cocoon who carry the vitality, turn green No viability is soon mildewed. Apple, ash, pine and other seeds available cutting cotyledons rapid germination method, simplifying the stripping procedures, easy to operate. Peeled or semi-sprout method for rapid germination of beans, to avoid perishable ills. 3. Hydrogen peroxide identification method The seeds were cut open, with 3% H 2 O 2 solution dropped on the seed section, where there are bubbles, the strong proof of seed respiration, germination rate. According to a number of tests, germination rate can be drawn.