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对种植于广东省蕉岭、四会、信宜、阳东等4个地点的澳大利亚湿加松F2杂种2.5~4.0年生的人工林作了生长量调查和数据分析,结果表明:F2杂种早期生长突出,其年均树高生长介于0.87~1.10 m、年均胸径生长介于1.50~1.99 cm,比同地点湿地松的树高、胸径分别大19.40%~26.64%,18.78%~47.48%,比马尾松的树高、胸径分别大3.28%~24.71%,42.45%~80.07%。初步认为,湿加松F2杂种在广东省的低山地区有较大的发展潜力。文章还对F2杂种的变异程度进行了探讨,并提出了F2杂种的利用设想。
Growth surveys and data analyzes of 2.5-to-4.0-year-old plantations of F2 population from Australia, Jiaon Ling, Sihui, Xinyi and Yangdong in Guangdong Province were carried out. The results showed that the early growth of F2 hybrids The annual average tree height growth ranged from 0.87 to 1.10 m. The average annual DBH growth ranged from 1.50 to 1.99 cm, which was 19.40% -26.64% and 18.78% -47.48% larger than the tree height and diameter at the same site respectively. Compared with the height of masson pine tree, the DBH was 3.28% ~ 24.71% and 42.45% ~ 80.07% respectively. It is preliminarily believed that F2 hybrids of wet Jiazong have greater potential for development in low mountain areas of Guangdong Province. The article also discussed the degree of variation of F2 hybrids and proposed the utilization of F2 hybrids.