桉树伞房属4个种在广东清新的早期生长表现  

Growth Performance of the Four Species from Genus Corymbia in Qingxin County

作　　者：刘天颐[1] 刘纯鑫[1] 林元震[1] 黄少伟[1] 

机构地区：[1]华南农业大学林学院,广东广州510642

出　　处：《华南农业大学学报》2009年第4期61-64,共4页Journal of South China Agricultural University

基　　金：广东省科技计划项目(2002C20134)

摘　　要：分析了引自澳大利亚东部的桉树伞房属4个种在广东省清新试验点5年生时的生长表现.方差分析表明,树种间、种源间、家系间在树高、胸径、材积生长量上均存在极显著的差异.表现最好的是大叶斑皮桉Corymbia henryi(S.T.Blake)K.D.Hill&L.A.S.Johnson,其次是斑皮柠檬桉C.variegata(F.Muell.)K.D.Hill&L.A.S.John-son、柠檬桉C.citriodora(Hook.)K.D.Hill&L.A.S.Johnson和斑皮桉C.maculata(Hook.)K.D.Hill&L.A.S.Johnson.4个树种的平均树高为8.04 m,平均胸径为7.28 cm,平均单株材积为0.021 9 m3.其中斑皮柠檬桉10248种源44号家系的生长量最大,其平均树高为10.35 m,平均胸径为9.70 cm,平均单株材积为0.040 00 m3.初步选出20个家系,占家系总数的21.98%.Early growth of 4 species in genus Corymbia from eastern Australia was studied. The results of 5 years＇ trial in Qingxin were summarized as follows： C. henryi was the best species, followed by C. variegata, C. citriodora, and C. maculate. Height growth, diameter at breast height （DBH） and single-tree volume have significant differences among species, provenances and families. The average height, DBH, and single-tree volume of 4 species was 8.04 m, 7.28 cm and 0. 021 9 m^3. The family 44 from provenance 10248 of C. variegata has the best growth performance, with 10. 35 m, 9.70 cm and 0. 040 00 m^3 as the average height, DBH, and single-tree volume. Twenty families were selected, accounting for 21.98% of all the tested families.

关 键 词：伞房属 种源 家系 早期选择 

分 类 号：S722.5[农业科学—林木遗传育种]