摘要
在江苏3个试验点连续9年(1981～1989)对美国39个湿地松种源(包括2个不同树种)研究表明:不同种原、树种间生长、形态性状变异显著.但变异与种源产地地理、气候因子相关不显著而与造林地的土壤条件密切相关.变异主要来源于林分和单株.7年生时优良种源高、径生长量遗传增益为19.14～85.38%.初选优良种源4个(S_(14)、S_(11)、S_(17)、S_1).分布于佛罗里达州北部、德克萨斯州东部和北卡州南部.
A study on geographic variation and fine provenance selection in slash pine in Jiangsu/Wang Qi-ming* et al//Journal of Jiangsu Forestry Science & Technology.-1990, 17 (3) .-1-10
A study on geographic variation and fine provenance selection in 39 slash pine provenances(including 2 other pine species)was performed at 3 experimental blocks in Jiangsu during 1981~1989. It was found that there are significant differences in growth and morphology traits among provenances, but no significant relationship between variation and geographic or climatic characteristics. The genetic gain for height and D.B.H, of trees from N. Florida (S14, S11) , E. Texas (S17) , and N. Carolina (S1) is 19.14~85.38% at the age of 7.
*Authors' address: Forestry research instilute of Jiangsu Province, Dongshan-qiao, Zhonghuamenwei, Nanjing 211153, PRC
出处
《江苏林业科技》
1990年第3期1-10,共10页
Journal of Jiangsu Forestry Science & Technology
