Line 育种过程中的前期材料。人选单株时，经初步观察鉴定、无性繁殖，具有一定数量的同类个体，在品种比较试验之前统称株系。如从龙井群体中选出的龙井6043，前期即称6043株系。 .................................. 参考《中国茶叶大辞典》 www.chichaqu.com
在比利时和荷兰，一种新的恶性的禽流感病毒株系席卷了所有的养鸡场。
In Belgium and the Netherlands, a virulent new strain of avian flu was wiping out entire chicken farms.
NMU诱变也具有特异性，例如在早籼26后代中出现了糯性变异株系。
NMU has also peculiar quality , for example the glutinous variation appears in the later generation of Zaoxian 26.
对D 3代稳定株系的可溶性糖含量进行测定分析，结果表明，可溶性糖含量都有所提高。
Analyzed its soluble sugar content of the stable strain D3, the results indicated that the soluble sugar content was increased.
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