Various clones families could be propagated commercially without having been clonally tested . 在这些家系中不同无性系被大量地繁殖，也没有进行无性系的测定。
2.
Since most banana ( " musa " spp . ) do not produce seed and are vegetatively propagated , germplasm most be preserved clonally 摘要对于香蕉这种营养繁殖的植物，超低温保存是长期有效地保存其种质的一种有效方法。
