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巨峰葡萄是大粒鲜食品种,一般单粒重9～12克以上,外形美观,抗病力强。但种皮厚,胚小,发芽困难,发芽率也低,影响了实生苗育种进程。为此,我们研究催芽技术,以提高其种子发芽率。 (一)试验方法:1981年,分别从天山果园、嘉定唐行果园采集巨峰葡萄种子,采取四种处理:一组种子洗净晾干,随即低温沙藏;二～四组,种子洗净阴干,置于常温(20～25℃)1～3个月,分别于低温下沙藏30天、60天和90天,然后取出洗净,用0.1％的升汞消毒15分钟,清水洗净,置25℃温水中浸种24小时,后催芽,温度为25～28℃。 (二)结果分析:经过处理的种子分别在10天、17天、19天和20天后开始发芽,未经沙藏的种子直到1982年5月才开始发芽,沙藏以1～2个月为好,发芽率分别达16.46％、17.91％(见表)。
Kyoho grapes is a large fresh food varieties, usually a single grain weight 9 to 12 grams more beautiful appearance, disease resistance and strong. However, the seed coat is thick, embryo is small, germination is difficult, germination rate is low, affecting the seedling breeding process. To this end, we study the germination technology to increase the germination rate of its seeds. (I) Test Methods: In 1981, Kyoho grape seeds were collected from Tianshan orchards and Jiading Tangxing orchards, respectively. Four treatments were adopted: a group of seeds were washed and dried, then a low-temperature sand bank; , Placed in room temperature (20 ~ 25 ℃) for 1 ~ 3 months, respectively, sand storage at low temperature for 30 days, 60 days and 90 days, then removed and washed with 0.1% mercuric chloride for 15 minutes, washed with water 25 ℃ warm water soaking for 24 hours, after germination, the temperature is 25 ~ 28 ℃. (B) Analysis of the results: The treated seeds began to germinate after 10 days, 17 days, 19 days and 20 days, respectively. The seeds without sand bank began to germinate until May 1982, while the sand bank took 1 to 2 months Good, germination rates were 16.46%, 17.91% (see table).