广西红锥种源/家系造林试验研究初报

A Preliminary Report on Tree Planting Test of Provenances and Families of Castanopsis hystrix in Guangxi

通过对广西红锥5个种源32个优树子代的造林试验表明,在其幼树期(3年生)不同种源、家系的红锥林木生长差异显著,由此初步评选出4个种源及7个优良家系.此7个优良家系,与最差家系相比较,其平均树高增加12.60%～32.33%,平均胸径增加31.385%～38.72%,单株材积增加102.30%～235.77%.

The planting comparison experiment was conducted on the germplasm of 32 quality tree individuals of 5 provenances of Castanopsis hystrix in Guangxi. The results showed that there are significant differences in young tree growth between different provenances and families, four provenances and 7 families with good quality were selected out. Compared with the family with the worst growing performance, the average tree height, DBH and individual volume of quality families increased by 12. 60 % - 32. 33 %, 31. 385 % - 38.72 % and 102.30 %- 235.77 % respectively.