摘要
研究结果表明,华山松种源生长量的地理变异呈纬向渐变型,形成2个地理集群。将其分布区(除川藏高原)划分成南北2个种源区和3个种子区。贵州属于云贵高原南方种子区,其造林用种只能在本区内调种,其中黔中次生种源生产潜力大,应以重视。
The results of ten-years study show that the geographic variations of the growth of pinus armandii stemming from variant seed provenance, which tend to be a latitudinal dine, form two geographic groups. The natural range (barring Shi Chuan-Tibet Plateau) of pinus armandii acn be divieed into two (southern and northern) seed provenance zones and three seed z.ced zones. Guizhou belongs to the seed zone of Yunan Guizhou plateau.The afforested seed of Guizhou can only be allotted in this zone. It should be paid attention to that the secondary seed provenance of the centric area of Guizhou has a great production potentiality.
关键词
华山松
种源
遗传变异
Pinus armandii
seed provenance
seed zone
