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1 播种时期与方法 1.1 播种时期 苹果砧木播种的时期分春播和秋播。秋播在封冻前进行,秋播种子不需要层积处理,翌年春出苗早,生长快,但苹果砧木种子颗粒较小,容易遭受风寒、干旱、鸟、鼠的危害,因此生产上多采用春播,一般在3月下旬～4月上旬。 1.2 浸种催芽 为了使种子提早萌动发芽,在播种前5～7天,将砂藏层积过的种子倒入盛有45℃左右温水容器中,搅拌后浸2～4小时,或用25℃水浸24小时,然后把种子晾干混砂,放在20℃左右的室内或温室中,5～7天就可萌动发芽,当有
1 sowing period and method 1.1 sowing period apple stocking sowing period of spring and autumn sowing. Autumn sowing is carried out before freezing, autumn sowing seeds do not need stratification treatment, the emergence of early spring the next spring, fast growth, but Apple rootstock seed particles smaller, susceptible to cold, drought, birds, rats, so the production of more spring , Usually in late March ~ early April. 1.2 soaking seed germination In order to germinate seeds germinate early, 5 to 7 days before sowing, the sand layer of the seeds into a container containing 45 ℃ warm water, stirring dip 2 to 4 hours, or 25 ℃ water Soak for 24 hours, then the seeds dry sand, placed in a room or greenhouse at about 20 ℃, 5 to 7 days germination can germinate, when there is