Title: Analysis on Cutting and Growth Traits of Clones of Eucalyptus urophylla×E.tereticornis
Abstract: This paper presented the analysis on cutting and growth traits of 181 clones representing five E.urophylla S.T.Blake × E.tereticornis Smith hybrids.The hybrids and the clones within hybrid differed in all three cutting traits, number of roots per cutting(RN),the maximum root length per cutting(RL),and rooting percentage per plot(RP),at 0.01 significance level.For the three growth traits,height(H),diameter at breast height(D),and volume(V),the clones within hybrid differed at 0.01 significant level when 46 months old,while the hybrids showed non-significant difference.The broadsense heritability ranged from 0.32 to 0.94,implying moderate to high genetic control of the traits studied.No significant correlation was found between cutting traits and growth traits though either cutting traits or growth traits showed significant correlations(p0.01).Age-age correlations between 13,18,and 46 months were significant at 0.01 level in all the growth traits,indicating the availability of clone selection at a relatively early age.Twenty-four superior clones were selected for further pilot trials basing on their performance in cutting and growth traits.It is efficient in eucalypt breeding to carry out clone test with cuttings raised directly from hybrid seed.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 2
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot