摘要
桉树速生、耐寒性的育种对冷凉地区的桉树人工林发展意义重大。通过对57个尾叶桉×细叶桉种间杂种的生长和耐寒性的联合选择研究表明:对4年生树高、胸径和材积,母本和父本间的差异达0.01或0.05显著水平,而母本×父本互作不显著;对2.5年生耐寒性,母本、父本和母本×父本互作均差异显著;结合生长和耐寒性表现,评选出11个优良杂种和12株优良杂种单株。
Fast-growing and cold-hardy eucalypts are highly valuable for plantation establishment in cool regions.57 Eucalyptus urophylla×E.tereticornis hybrids were employed for selection in both growth and cold hardiness traits.The results indicate that for four-year-old growth traits,including height（H4）,diameter at breast height（D4） and volume（V4）,maternal and paternal effects were significant at 0.01 or 0.05 level,while female×male interaction was non-significant.However,female,male and their interaction effects were all significant in 2.5-year-old cold hardiness.A total of 11 superior hybrids and 12 individual trees were selected out as their combined performance in growth and cold hardiness were concerned.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2010年第8期68-71,共4页
Journal of Central South University of Forestry & Technology
基金
国家自然科学基金(30671703)
国家高技术研究发展计划(863计划)(2006AA100109)
中央级公益性科研院所基本科研业务费专项(RITF2008-4)
关键词
尾叶桉×细叶桉杂种
生长
耐寒性
选择
Eucalyptus urophylla×E.tereticornis hybrid
growth
cold hardiness
selection
