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198 9年至 1996年间 ,台山红岭种子园从美国、澳大利亚、津巴布韦引入湿地松基因资源种子共 4 0 7份 ,包括有 6个种源、2 13个全同胞家系和 188个半同胞家系。利用其中 370份材料营建种源林 1片、基因资源林 6片 ,面积共 16 .85hm2 。根据这 7片测定林的调查数据分析了新引材料的遗传品质以及选择潜力 ,并通过性状年度相关分析 ,探讨早期选择的可靠性。结果表明 ,新引材料普遍具有较强的适应能力 ,造林保存率平均达 90 %以上 ;在生长量方面 ,有 6 6 .6 7%的种源、82 .14 %的家系优于台山湿地松初级种子园种 ,所有参试材料的树高、材积平均现实增益分别为 10 .0 7%和 30 .4 5% ;在家系入选率为 50 %和每个入选家系内选择 2株优树的前提下 ,入选群体树高、材积的平均预期选择增益分别为 2 8.51%和 6 0 .79% ;1年生的树高和 3年生的树高、胸径、材积与 7年生的家系生长量相关密切 ,3年生时生长不良的家系到 7年生时也难有突出的表现
198 From 1996 to 1996, Taishan Hongling Seed Garden introduced 407 seeds of Pinus elliottii from the United States, Australia and Zimbabwe, including 6 provenances, 2 13 sib families and 188 half-sib families. 370 of them were used to construct one species plantation forest and 6 gene resources forests with a total area of 16.85hm2. Based on the survey data from these seven forests, the genetic quality and selection potential of the new material were analyzed. The reliability of the early selection was discussed by annual correlation analysis of traits. The results showed that the newly introduced materials generally had strong adaptability and the average rate of afforestation preservation was more than 90%. In terms of growth, there were 66.76% of provenances, 82.14% of them were better than Taishan For the primary seed orchard, the tree height and the average volume gain of all the tested materials were 10.07% and 30.45% respectively; for the family selection rate of 50% and 2 elite trees for each selected family Under the premise of the selected tree height, the average expected selection gain of the volume is 2 8.51% and 60.79% respectively; tree height and 3-year tree height, DBH and volume of 1-year-old tree are closely related to 7-year- , 3-year-old poor growth of family to 7-year-old also difficult to have outstanding performance