无性繁殖材料

用这批优良单株作为无性繁殖材料，是改良我省核桃遗传品质、提高核桃生产效益的重要途径之一。

As materials of clonal propagation , these individuals will improve the genetic character of walnut in Sichuan and raise its yield .

探讨了造林用种质量范畴，总结了当前福建省造林用种出现的新特点，从质量检验、种源适应性、无性繁殖材料生产三方面分析了用种质量问题，并提出了相应对策。

In this paper , seed quality problem were analyzed in 3 aspects , i. e. quality checking , adaptability of provenances and production of vegetative propagation materials and countermeasures were provided .

系统地叙述了无性系林业的特点、无性系繁殖材料的选择与生产途径，以及无性系林业应用中存在的问题和无性系林业实用化的方法和步骤。

The characteristics of clonal forestry , selection and productive approaches of clonal reproductive materials , the existing matters and practical approaches and procedure of clonal forestry were stated in a systematic way .