河南農(nóng)業(yè)大學(xué)學(xué)報(bào) |
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茹廣欣 袁金玲 馮勝 朱立新 摘 要:對(duì)10年生的31個(gè)泡桐無性系的生長狀況進(jìn)行了分析.結(jié)果表明,不同無性系間性狀表現(xiàn)差異較大,胸徑的遺傳力較高,可以作為選擇的主導(dǎo)性狀,主干材積的潛在改良能力最大.相關(guān)分析表明,多數(shù)性狀間有顯著相關(guān)關(guān)系,在選育時(shí)應(yīng)統(tǒng)籌兼顧.叢枝病發(fā)病程度在無性系間差異顯著.在本試驗(yàn)條件下,生長性狀優(yōu)良、發(fā)病率較低的無性系為8508-2,毛雜等. 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. |
基金項(xiàng)目:“九五”國家科技攻關(guān)項(xiàng)目(96-004-01-02) 作者簡(jiǎn)介:茹廣欣(1963-),男,河南洛陽人,河南農(nóng)業(yè)大學(xué)林學(xué)園藝學(xué)院副教授,碩士,從事林木育種研究. 作者單位:茹廣欣(河南農(nóng)業(yè)大學(xué)林學(xué)園藝學(xué)院,河南鄭州 450002) 袁金玲(河南農(nóng)業(yè)大學(xué)林學(xué)園藝學(xué)院,河南鄭州 450002) 馮勝(河南農(nóng)業(yè)大學(xué)林學(xué)園藝學(xué)院,河南鄭州 450002) 朱立新(信陽市農(nóng)業(yè)聲像教育中心,河南信陽 464000) 參考文獻(xiàn): [1]蔣建平.泡桐栽培學(xué)[M].北京:中國林業(yè)出版社,1990. 收稿日期:2000年12月4日 出版日期:2001年3月1日 |