河南农业大学学报 |
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茹广欣 袁金玲 冯胜 朱立新 摘 要:对10年生的31个泡桐无性系的生长状况进行了分析.结果表明,不同无性系间性状表现差异较大,胸径的遗传力较高,可以作为选择的主导性状,主干材积的潜在改良能力最大.相关分析表明,多数性状间有显著相关关系,在选育时应统筹兼顾.丛枝病发病程度在无性系间差异显著.在本试验条件下,生长性状优良、发病率较低的无性系为8508-2,毛杂等. Growth characters and resistance analysis of different paulownia imperial clones RU Guang-xin(College of Forestry and
Horticulture, Henan Agricultural University, Zhengzhou 450002,China) Abstract:Growth characters analysis of 31 10-year-old paulownia clones shows that
significant differences exist between different clones that the diameter of
breast height may act as the dominant character for selection because of its
higher genetic ability, and that the stem volume has the greatest potential for
improvement. Correlation analysis indicates that many characters are closely
correlated and must be considered during selection. The degree of
withches -broom are quite different. The clones 8508-2、Mao-za are the best clones
concerning growth characters and witches -broom occurrence
frequency. |
基金项目:“九五”国家科技攻关项目(96-004-01-02) 作者简介:茹广欣(1963-),男,河南洛阳人,河南农业大学林学园艺学院副教授,硕士,从事林木育种研究. 作者单位:茹广欣(河南农业大学林学园艺学院,河南郑州 450002) 袁金玲(河南农业大学林学园艺学院,河南郑州 450002) 冯胜(河南农业大学林学园艺学院,河南郑州 450002) 朱立新(信阳市农业声像教育中心,河南信阳 464000) 参考文献: [1]蒋建平.泡桐栽培学[M].北京:中国林业出版社,1990. 收稿日期:2000年12月4日 出版日期:2001年3月1日 |