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菜种保存有效期菜种发芽率与保存年限关系很大。菜种不同，其保存年限也不一样：①番茄籽：一般可存３～４年，最长不超过４年，否则会降低发芽率。鉴别新旧籽方法：新籽上有很多小茸毛．而且有番茄味，旧籽外皮茸毛少或脱落．气味也很小。②黄瓜籽：最多存放２～３年，超...
The conservation of vegetable species Germination rate of germination and the shelf life of a great relationship. Different species, the preservation of life is not the same: ① tomato seeds: generally can be stored for 3 to 4 years, the longest no more than 4 years, otherwise it will reduce the germination rate. Identification of old and new methods: new seed has a lot of hair. And tomato flavor, the old seed coat less or fall off. Smell is small. ② cucumber seeds: up to store 2 to 3 years, super ...