闽南山地杂种桉新无性系测定初报

Preliminary Report on Determination of New Clones of Hybridized Eucalyptus spp. on South Fujian Hilly Land

将高生长量的品系与抗逆性强的品系杂交获得桉树杂交新种无性系ZL9、ZL11、ZL15等,与引进的抗风无性系SH1、W 5、M1在闽南山地进行对比试验。结果表明,ZL9、ZL11、ZL15表现出早期较好的速生性,且抗逆性较强。这些无性系5个月树高可达到1.8-3.0 m,比SH1无性系提高19.4%-43.1%,比W 5无性系提高1.5%-41.7%,存活率94.6%-97.2%。特别是ZL15适应性最强,在贫瘠立地上仍有较高生长量,体现出明显的杂种优势。

Varieties with higher growth and strong resistance were hybridized to obtain new clones（ZL9,ZL11,ZL15 etc.） which were contrasted in tests with introduced wind-resistant clones（SH1,W5,M1） on south Fujian hilly land.Result shows that：ZL9,ZL11,ZL15 show not only better fast-growing characteristics in the early stage,but also strong resistance.Tree height of clones（ZL9,ZL11,ZL15） whose growth increase by 19.4%-43.1%,1.5%-41.7% than that of SH1,W5 clone respectively can reach 1.8-3.0 m in 5 months,with the survival rate 94.6%-97.2%.ZL15,which has the strongest adaptability,still have higher height growth on poor soil,showing significant heterosis.