The germination rates reduced when half strength N6 culture medium was used. 当幼胚被培养在减半的N6培养基上时,发芽率普遍降低。
Method : Out the optimal hormone combinations for callus induction, adventitious bud initiation, adventitious bud multiplication and rooting were found out by using MS medium with the macroelements at half strength as basal medium and studying the effects of BA, NAA and IBA on the processes. 方法:以大量元素减半的MS培养基为基本培养基,通过研究BA,NAA和IBA对愈伤组织诱导、不定芽分化、不定芽增殖和生根的影响找出相应的最佳激素组合。
First, a new concept namely half strength index was introduced to build the mathematic properties equations of stress-strain relationship, then the deficiency of hyperbolic expression of the relationship was indicated in terms of it. 首先,引入半值强度指数概念建立了土体应力应变曲线的数学特征方程,分析了双曲线应力应变模型的数学缺陷。
Radioactive iodine loses half its strength in a week. 放射性碘在一周内会失去一半威力。
I wish Fanny had half your strength, ma'am. 范妮的气力能顶上你一半就好了,姨妈。