乐昌含笑种子育苗和扦插繁殖技术研究  

A Study on Seedling Breeding and Cuttage Reproduction of Michelia chapensis

作　　者：来端 

机构地区：[1]福建省邵武市林业科技推广中心,福建邵武354000

出　　处：《林业科学研究》2006年第4期441-445,共5页Forest Research

基　　金：福建省林业厅科学基金资助项目(闽林[2002]科10号)内容之一

摘　　要：1993—2001年在福建省邵武市进行乐昌含笑种子育苗和扦插繁殖试验,结果表明:种子育苗采用4种播种方式,其中以密播芽苗移植为最佳,这一播种方式是种子先在大棚内密播,出土后进行芽苗移植,当年苗高达90.13cm、地径0.85 cm,每公顷生产优质苗22.5万株;其次是点播与条播较好,但条播便于管理有利生产应用;撒播虽产苗量高但苗木质量较差,生产上一般不宜采用。穗条不同部位1年生扦插试验显示:以梢部插穗效果最好,扦插生根率为85%,1年生苗高达156.2 cm,根径为1.32 cm;其次是中部插穗生根率为63%;基部插穗最差,生根率仅有18%。中部穗条苗木的高径生长量大于基部,但两者均小于梢部。3个部位的移植成活率较高,都在90%以上。Tests of seedling breeding and euttage reproduction of Michelia chapensis were conducted at Shaowu city during 1993-2001. Four types of seedling breeding were adopted： densely sowing in greenhouse and transplanting, hill seeding, drilling, and throwing. Densely sowing in greenhouse and transplanting was the best, for it produced 225 000 1-year-old seedlings of 90.13 cm in height and 0.85 cm in ground diameter. Hill seeding and drilling were good but the latter better in production. Throwing produced large volume of seedlings but the quality of seedlings was poor. So throwing was rejected in production. Cuttage at the top（T）, Middle（M） and base of twigs（B） were tested separately in cuttage reproduction. The roofing rates were 85% （T）, 63% （M） and 18% （B）. In growth increment, T 〉 M 〉 B. The transplanting rates were all above 90% and had little variation among them. The 1-year-old seedlings of T were 156.2 cm in height and 1.32 cm in ground diameter. Therefore cuttage at the top was the best.

关 键 词：乐昌含笑 种子育苗 扦插繁殖 芽苗移植 

分 类 号：S723.1[农业科学—林木遗传育种]