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火炬松遺傳資源林的生長表現(xiàn)

華訊松香網(wǎng)
2002-04-29
閱讀次數(shù):4482
閱讀字體 【

華南農(nóng)業(yè)大學學報
JOURNAL OF SOUTH CHINA AGRICULTURAL UNIVERSITY
2001 Vol.22 No.1 P.12-17


鐘偉華  石斌  周達  黃永權(quán)  張民興  張民興 

摘 要:對火炬松原產(chǎn)地耐寒與一般兩類基因資源林的生長表現(xiàn)研究結(jié)果表明,前者保存率高,適應(yīng)性強,生長均勻,差異不顯著;后者則相反,保存率較低,生長優(yōu)劣懸殊,差異顯著,優(yōu)于我國早年引入的種批,為重要的遺傳改良資源,其中有10個編號較優(yōu)良,它們多產(chǎn)自美國東南沿海,尤其是墨西哥灣各州.在31.3%入選率下,材積相對遺傳增益大20.84%;2~5株小樣求得的生長早-晚相關(guān)趨勢與前人研究一致,唯確定程度略低.
關(guān)鍵詞:火炬松;基因資源;生長表現(xiàn);遺傳增益;早-晚相關(guān)
分類號:S722.83 文獻標識碼:A

文章編號:1001-411X (2001) 01-0013-05

Growth Performance of the Loblolly Pine Genetic Resources

ZHONG Wei-huaCollege of Forestry, South China Agric. Univ., Guangzhou 510642, China) 
SHI BinCollege of Forestry, South China Agric. Univ., Guangzhou 510642, China) 
ZHOU DaCollege of Forestry, South China Agric. Univ., Guangzhou 510642, China) 
HUANG Yong-quanSeed and Seedling Station of the Department of Forestry, Guangdong Province, Guangzhou 510173, China) 
ZHANG Min-xingSeed and Seedling Station of the Department of Forestry, Guangdong Province, Guangzhou 510173, China) 
LI Yuan-qiuYingde Loblolly Pine Seed Orchard, Yingde 513000China) 

AbstractThis paper studied the growth performance of loblolly pine gene resources with in cold-hardy and regular provenances. The results indicated that the cold-hardy gene resources showed higher survival rate, better adaptability and uniformity in growth and without significant difference. The regular gene resources were the contrary, with lower survival rate, great variation in growth and significant difference among seed sources. The growth performance was superior to that of the early introduced loblolly pine seed lots in China. These provenances are the important genetic resources for tree improvement. Among these gene resources there were 10 superior numbers from the southeast coastal states in the U.S.A., especially those from the Mexican Bay States. Under 31.3% selection rate, the relative genetic gain was 20.84%. The juvenile-mature growth correlation trend derived from small samples of 25 trees, was in accordance with the former researches, only with a slightly lower the determination coefficient.
Keywords
loblolly pine; genetic resources; growth performance; genetic gain; juvenile-mature growth correlation

基金項目:“七五”國家重點科技攻關(guān)(75-07-01-38);廣東省科委重點課題;聯(lián)合國發(fā)展計劃署項目(CPR/91/153)
作者簡介:鐘偉華(1927-),男, 教授.
作者單位:鐘偉華(華南農(nóng)業(yè)大學林學院, 廣東 廣州 510642) 
     石斌(華南農(nóng)業(yè)大學林學院, 廣東 廣州 510642) 
     周達(華南農(nóng)業(yè)大學林學院, 廣東 廣州 510642) 
     黃永權(quán)(廣東省林業(yè)廳種苗站, 廣東 廣州 510173) 
     張民興(廣東省林業(yè)廳種苗站, 廣東 廣州 510173) 
     李遠球(英德市火炬松種子園, 廣東 英德 513000) 

參考文獻:

[1]王明庥. 林木育種學概論[M]. 北京: 中國林業(yè)出版社,1989. 184-190.
[2]朱之悌,林惠斌.森林基因資源收集保存的要點和方法[J]. 世界林業(yè)研究,1992,(2):13-20.
[3]潘志剛. 火炬松、濕地松種源試驗研究報告[A]. 潘志剛. 濕地松、火炬松種源試驗研究[C]. 北京:北京科學技術(shù)出版社,1992. 1-29.
[4]HARCHER A V. The use of progeny test data for evaluation of specific crosses and clones[A]. Anon. Tree improvement short course: No 30,[C]. Ralugh N C: NCSU press, 1981. 184-187.
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[6]鐘偉華,何昭珩,周 達.火炬松自由授粉子代測定研究[J]. 林業(yè)科學研究,1994,7(3):277-285.
[7]鄭勇奇,潘志剛.火炬松耐寒種源試驗[A].潘志剛.濕地松、火炬松種源試驗研究[C]. 北京:北京科學技術(shù)出版社,1992. 30-37.
[8]LAMBETH C C, Juvenile-mature correlations in  Pinaceae and implications for early selection[J]. For Sci, 1980, 26 (4): 571-580.

收稿日期:2000年3月21日

出版日期:2001年1月1日


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