Test and selection of the traits of artificial hybridization progeny of eucalyptus in the mountains of south Fujian
For breeding a group of pedigrees and fine individuals with high yield, strong resistance, and adaptability in southern Fujian mountain, the 22 participants eucalyptus hybrid progeny families was located in southern Fujian mountain, when they were 7.5-year-old, 8.5-year-old and 10-year-old, their growth traits and quality traits shape data were tested by ANOVA analysis. The results showed as follows. There were significant to very significant differences between the different hybrid progeny families on the tree height in the three forest ages 7.5-year-old, 8.5-year-old and 10-year-old, and significant to very significant differences on the DBH and very significant differences on the individual volume in the two latter forest ages. When the forest age was 10-year-old, each family tree height range was 15. 61-23. 79 m, diameter range was 13. 13-20. 99 cm, individual volume range was 0.108 7-0.402 1 m3. The two families of No.21 and No.5 were elected to fine families, whose inclusion was 9.1%. The 6 paternal types of progeny growth performance were compared, and we initially identified that the progeny families whose female parent was E. urophylla and male parent was E. grandis or E. grandis × E. urophylla had outstanding performance in southern Fujian. Seven superior trees were selected, of which 4 were from No. 21 family, whose individual volume range was 0. 476 1-1. 633 3 m3 , 22.42% -319.98% higher than the clones of E. urophylla × E. grandis-DH32-29, and average real gain in the family was 118.95%. And of which 3 were from No.5 family, whose individual volume range was 0.410 7-0.686 4 m3 , 5.61%-76.50% higher than the clones of E. urophylla × E. grandis-DH32-29, and average real gain in the family was 75.49%.
Eucalyptusartificial hybridization progenyfamilysuperior trees
国家科技期刊平台
NSTL
万方数据
维普
