摘要
研究了美国蜡梅ＣａｌｙｃａｎｔｈｕｓｆｌｏｒｉｄｕｓＬ．、西美蜡梅Ｃ．ｏｃｃｉｄｅｎｔａｌｉｓＨｏｏｋ．ｅｔＡｒｎｏｔｔ．夏蜡梅Ｃ．ＣｈｉｎｅｎｓｉｓＣｈｅｎｇｅｔＳ．Ｙ．Ｃｈａｎｇ、蜡梅Ｃｈｉｍｏｎａｎｔｈｕｓｐｒａｅｃｏｘ（Ｌ．）Ｌｉｎｋ、西南蜡梅Ｃｈ．ＣａｍｐａｎｕｌａｔｕｓＲ．Ｈ．ＣｈａｎｇｅｔＣ．Ｓ．Ｄｉｎｇ、山蜡梅Ｃｈ．ｎｉｔｅｎｓＯｌｉｖ．、突托蜡梅Ｃｈ．ｇｒａｍｍａｔｕｓＭ．Ｃ．Ｌｉｕ、柳叶蜡梅Ｃｈ．ｓａｌｉｃｉｆｏｌｉｕｓＳ．Ｙ．Ｈｕ的种子和扦插繁殖，以及幼苗生长。气干种子千粒重顺序为１３６、１３３、２５４、２２９、７４４、２３７、１３１和３１１ｇ。种子发芽率最低３３％，最高８８％。夏季种子成熟的种类，随采随播，发芽率明显高于春播。以湿沙贮藏种子越冬，然后春播，可保持发芽率不明显下降。出苗期都在４～５月，播种可在３月上、中旬。幼苗仅一次生长高峰，分别在７、８、９月间。全年高生长量以美国蜡梅和柳叶蜡梅最大，达５０ｃｍ以上，山蜡梅最小，约２４ｃｍ。大部分种类第１年就形成较多分枝，表现灌木性状。除夏蜡梅外，全部蜡梅均可扦插繁殖，部分种类用１００×１０－６ＡＢＴ—１号生根处理可促进生根。
The seed and cutting propagation and seedling growth was studied for eight species of Calycanthaceae:Calycanthus floridus L.C.occidentalis Hook. et Arnott,C. chinensis Cheng et S .Y. Chang,etc.The air-drying thousand-grain weight of the eight species is 136,133,254,229,744,237,131 and 311 g respectively.Germination percentages range from 33% to 88%. Seeds of some species maturing in the summer are planted immediately after collection with higher germination rate than those planted in spring of the next year.When stored in wet sand for overwinter,the seeds mostly preserve their.viability.Germinating period of all species is in April-May,therefore the sowing i,appropriate tri the 1st or 2nd decade of March.Seedlings of different species showed only one growth peak in July or August or September.One-year seedling's height for C.lloridus and Ch.salicifolius is over 50 cm,that for Ch. nitens is about 24 cm. Most species are forming branchlets, demonstrating a bush habit. All species except of C.chinensis could be propagated by cuttings,and the treatment of cuttings with 100×10-6 of ABT-1 rooting powder promotes well the rooting percentage of some species.
出处
《浙江林业科技》
北大核心
1994年第1期1-7,共7页
Journal of Zhejiang Forestry Science and Technology
基金
浙江省自然科学基金
关键词
蜡梅
种类
繁殖
苗木
生长
Calycanthaceae species
propagation
seedling growth
