CAJ | 학술논문

对火炬松原产地耐寒与一般两类基因资源林的生长表现研究结果表明，前者保存率高，适应性强，生长均匀，差异不显著；后者则相反，保存率较低，生长优劣悬殊，差异显著，优于我国早年引入的种批，为重要的遗传改良资源，其中有10个编号较优良，它们多产自美国东南沿海，尤其是墨西哥湾各州.在31.3％入选率下，材积相对遗传增益大20.84％；2～5株小样求得的生长早-晚相关趋势与前人研究一致，唯确定程度略低.
대화거송원산지내한여일반량류기인자원림적생장표현연구결과표명，전자보존솔고，괄응성강，생장균균，차이불현저；후자칙상반，보존솔교저，생장우렬현수，차이현저，우우아국조년인입적충비，위중요적유전개량자원，기중유10개편호교우량，타문다산자미국동남연해，우기시묵서가만각주.재31.3％입선솔하，재적상대유전증익대20.84％；2～5주소양구득적생장조-만상관추세여전인연구일치，유학정정도략저.
This paper studied the growth performance of loblolly pine generesources 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 2～5 trees, was in accordance with the former researches, only with a slightly lower the determination coefficient.