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作 者:韦如萍[1] 胡德活[1] 郑永光[2] 王润辉[1] 周宏 张庆华 何志明
机构地区:[1]广东省林业科学研究院,广东广州510520 [2]广东省林业局,广东广州510173 [3]韶关市国营九曲水林场,广东翁源512600
出 处:《华南农业大学学报》2009年第4期65-69,共5页Journal of South China Agricultural University
基 金:广东省科技计划项目"南洋楹工业用材良种选育研究"(2003B21205);广东省科技计划项目"南洋楹工业用材林定向培育技术研究"(C20306)
摘 要:对2000年在广东省翁源九曲水林场建立的南洋楹Paraserianthes falcataria种源/家系试验林进行调查观测,结果表明:不同林龄时,参试种源/家系间的保存率和生长性状存在显著或极显著差异;较长时间的霜冻、结冰和降雪天气对南洋楹的保存率和生长性状有很大影响;通过多性状综合评价,初步筛选出保存率和生长性状均表现较好的有家系C2、C7和种源P11,其5.5年生时的保存率分别为73.02%、65.22%和69.55%,单株材积分别为0.046 717、0.041 166和0.047 980 m3,均优于对照和群体均值,可在该地区作进一步的观察测定.The experimental forest of Paraserianthes falcataria (L.) Nielsen, afforested in 2000 in Jiuqushui forest farm of Wengyuan, was investigated and observed. The results showed that the difference of the preservation rate and character of growth among the provenances/families at different age were significant or highly significant. Frost and icing or snowfall weather lasting for a long time had significant effect on the preservation rate and growth of Paraserianthes falcataria. Three provenances/families including C2, C7 and P11, with the character of higher preservation rate and better growth, were selected by multi-character synthesis evaluation, the preservation rate and the average volume at 5.5 years were 73.02% , 65.22% , 69.55% and 0. 046 717, 0. 041 166 and 0. 047 980 m3, respectively, which were higher than those of control and the whole average value, respectively. Therefore, these superior provenances/families were suggested to be further observed and tested.
分 类 号:S722.7[农业科学—林木遗传育种]
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