?克隆品种
... clone culture克隆培养 clone variety克隆品种 forbiden clone禁忌细胞系 ...
多无性繁殖系品种
无性生殖的植物品种
"It's very significant to find a new clone variety because the tree's gene pool is very restricted and that is a disadvantage if they are threatened by disease as these are, " she said.
BBC: Black poplar trees found in Denbighshire lay-by 'unique'
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。