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香椿种子带有单翘或双翅状果皮,播前催芽十分重要。催芽前先用手搓去翅膜,用1%的甲醛溶液浸泡20分钟后,清洗干净。然后放人50℃左右的温水中,浸泡10~20小时,捞出后淋去水分,摊开晾一下,按种沙1:2的比例混合均匀催芽,湿度不低于75%,也不宜过湿。催芽适温20~25℃,最低不低于10℃,最高不超过30℃,一般5~6天,约一半种子露白时即可播种。
Toon seeds with a single Alice or double-wing peel, pre-germination is very important. Sprout before hand bud to the wing membrane, with 1% formaldehyde solution soak for 20 minutes, cleaned. Then release the warm water at about 50 ℃, soak for 10 ~ 20 hours, remove the water after pouring, spread dry, according to the proportion of sand mixed evenly germination, humidity of not less than 75%, it should not be too wet. Germination temperature 20 ~ 25 ℃, the minimum is not less than 10 ℃, the maximum does not exceed 30 ℃, usually 5 to 6 days, about half of the seeds can be planted when exposed to the white.