[1]郑仁华.杉木种子园自由授粉子代遗传变异及优良遗传型选择[J].南京林业大学学报(自然科学版),2006,30(01):008-12.[doi:10.3969/j.jssn.1000-2006.2006.01.002]
 ZHENG Ren-hua.Genetic Variations of Seed Orchard Open-pollinated Progenies and Selection of Superior Genotypes of Chinese fir[J].Journal of Nanjing Forestry University(Natural Science Edition),2006,30(01):008-12.[doi:10.3969/j.jssn.1000-2006.2006.01.002]
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杉木种子园自由授粉子代遗传变异及优良遗传型选择
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
30
期数:
2006年01期
页码:
008-12
栏目:
研究论文
出版日期:
2006-01-20

文章信息/Info

Title:
Genetic Variations of Seed Orchard Open-pollinated Progenies and Selection of Superior Genotypes of Chinese fir
文章编号:
1000-2006(2006)01-0008-05
作者:
郑仁华
福建省林业科学研究院国家林业局南方山地用材林培育重点实验室, 福建 福州 350012
Author(s):
ZHENG Ren-hua
Fujian Academy of Forestry, Southern Mountain Timber Forest Cultivation Lab, the Ministry of Forestry, Fuzhou 350012, China
关键词:
杉木 子代测定 木材品质 遗传变异 优良遗传型
Keywords:
Chinese fir Progeny tests Wood property Genetic variation Superior genotype
分类号:
S722
DOI:
10.3969/j.jssn.1000-2006.2006.01.002
文献标志码:
A
摘要:
<正>对接种根瘤菌后的刺槐根部进行了光学显微镜和透射电镜观察。结果表明:培养于缺铁培养液中的接菌刺槐苗发生形态变化的根部,在不同时期(根毛密集形变、根部膨大、初期小瘤一直到成瘤)根外层细胞的外切向壁上可形成具壁内突的传递细胞;培养于含铁培养液中的未接菌刺槐苗根部的外层细胞,以及接菌但无形态变化的刺槐菌根部均未观察到传递细胞。电镜观察结果表明,在根瘤形成过程中,根瘤菌是刺槐根外层传递细胞的主要诱因。而缺铁仅是次要因子。
Abstract:
Genetic variations and correlations between growth traits, wood basic density, wood red core rate, form and quality traits of families were studied based on 25-year-old seed orchard open-pollinated progeny test of Chinese fir established at Weimin National Forest Farm of Shaowu in 1979. The results showed that there were very significant differences among families in tree height, DBH and stem volume, some differences among families in wood basic density, wood red core rate, stem straightness, stem fatness, branch angle and stem bark rate. Based on the correlative analysis, the correlations between growth traits and wood red core rate were very plus close but the correlations between growth traits and stem bark rate were very minus close. The early selection for Chinese fir could be carried out at 4-year-old with a low selection intensity for tree height and the final selection could be carried out at 18-year-old with a high selection intensity for stem volume. According to the synthetical analysis, 7 superior families and 12 superior individuals with good performance in growth, wood property, form and qulity traits were selected from 63 open-pollinated families tested.

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更新日期/Last Update: 2013-05-20