细叶桉家系早期试验研究*
Preliminary Study on a Progeny Trial of Eucalyptus tereticornis
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摘要: 通过对14个种源100个家系的细叶桉家系试验的结果表明:主要性状在家系和种源间均存在极显着的差异,昆士兰州的13659,16558,15826,13544号种源的家系最好,其次是巴布亚新几内亚的13398种源的家系,最差的是新南威尔士13308和13319种源的家系.材积生长最大的家系是51号(1km North of Laura QLD)和60号(Mt Molloy QLD),分别为28.645、27.607m3/hm2,是最差家系33号(Sirinumu SAbstract: The results of a progeny trial of E. tereticornis involved 14 provenances and 100 open-pollinated families at age 32 months in western Guangdong Province showed that the growth differences among 14 provenances were highly significant while the growth differences among families were also highly significant.The most of better families were from QLD provenances 13659,16558,15826, 13544,and from PNG provenance 13398.The poor families were from NSW provenances 13308 and 13319.The volume of the best family Fam-51 from 1 km North of Laura QLD was 4.6 times larger than that of the poorest family Fam-33 from Sirinumu Sogeri PNG. The height growth,DBH,volume,stem form and current survival of E. tereticornis were highly significant and negatively correlated with the latitudeand longitude of its native habitat.The paper identifies 25 promising families suitable forplanting in the west of Guangdong Province.
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