virus-free plant 无病毒苗
VIRUS FREE PLANT CULTURE 脱毒苗培育
free-virus plant 脱毒苗
block of virus-free mother plant 无病毒母本园
virus-free tube plant 脱毒试管苗
virus-free mother plant 无病毒母本树
plant virus-free 脱病毒
virus-free potato tube plant 脱毒马铃薯试管苗
crop plant virus-free stock 作物植物体无病毒原种
The techniques included new methods to identify viruses in sweet potato roots, and better systems for multiplying improved virus-free plant varieties.
这些技术包括辨认甘薯根内病毒的新方法以及扩大经改良无病毒作物品种的更好方法。
The results show that:Success rate of virus-free seedling transplanted into Vermiculite was 98.33%, plant height, root number, root length of the plants in Vermiculite than those in the other medium.
结果表明：以全蛭石为移栽基质的脱毒试管苗成活率可达98．33％，植株生产状态最优，平均株高、发根数、根长几项指标均高于其它移栽基质。
Use one year old virus-free plant of hops as cuttings, studies the effect of NAA, Diameter of cuttings and pitch Numbers on hops virus-free plant greenwood cuttings Rooting.
采用啤酒花脱毒苗一年生枝条作插条，研究了插条粗度、节数与NAA对啤酒花脱毒苗绿枝扦插生根的影响。
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