外胚叶

Are preparatively cultured in the differentiation culture mediums(IBA 1 mg/L, BA0.4 mg/L) for two days, and AS is added in preparative culture medium and MSo bacterial liquid that has been centrifugated. The extents of colouration are not identical.

影响瞬时表达的因素很多，本实验主要对四个因素进行测试：预培养天数(1天、2天)、不同激素配比的分化培养(IBA 1.0mg/L BA 0.4mg/L、IBA 0.2mg/L BA 2mg/L)、是否加入乙酰丁香酮、外植体类型(子叶、真叶、下胚轴、根)。

The height of terminal buds, leave area and induction of adventitious roots of Ginkgo biloba were studied by adding of different concentration rare earth [La(NO3)3] in mediums of MS0 and 1/2 MS+0.5 mg/L IBA.

以银杏成熟胚诱导的无菌苗茎段为外植体，探討稀土[La(NO3)3]对其茎段顶芽高度、叶面积及芽苗不定根发生的影响。

Methods］ Taking euphylla,cotyledon and hypocotyledonary axis as explants,the influences on the callus induction rate and the growth dynamic of Dictamnus angustifoliu in different medium,hormone matching and carbon sources were investigated.

方法］以幼叶、真叶、下胚轴为外植体，研究不同培养基、激素配比、碳源对新疆白鲜出愈率的影响以及愈伤组织生长动态变化。

Bioassay results revealed: compared with alcohol control, extracts at parameter 1, 4, 7 stimulated the absolute germination rate and potential, radicle growth, plumular axis growth, fresh weight, dry weight at different levels; extracts at parameter 2, 3 stimulated the all germination index except radicle growth and axis growth; extracts at parameter 6 stimulated all but radicle growth and fresh weight; extract at parameter 8 stimulated only the germination potential.

生物检测结果显示，与酒精对照相比：萃取参数1、4和7等条件苦楝叶提取物对杉木种子绝对发芽率、绝对发芽势、胚根长、胚轴长、鲜重和干重等发芽指标均表现出不同程度的促进作用，萃取参数2和3等条件苦楝叶提取对除胚根和胚轴外的各发芽指标起促进作用，萃取参数5条件苦楝叶提取物对除鲜重和干重外的各发芽指标起促进作用，萃取参数6条件苦楝叶提取物对除胚根和鲜重外的各发芽指标起促进作用，而萃取参数8条件苦楝叶提取物仅对绝对发芽势起促进作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。