子叶的

The results of changes of endogenous hormone contents at early stage of floral differentiation in cotyledonary nodes of cucumber seedlings after decapitation were as follows: The contents of IAA and ZT in cotyledonary nodes of the cucumber seedlings within 0~4 d after decapitation decreases while the level of GA3 first increases then declines within 1~3 d, after that it increases again.

对花芽分化初期子叶节中内源激素质量分数的测定表明，IAA质量分数在花芽分化初期处於较低水准，ZT质量分数呈下降趋势，GA3质量分数则出现升-降-升的波动状态。

The cotyledon cubes as explants of oil tea were cultured on MS medium added with 2,4-D 2.0mgL^(-1) and KT 1.0 mgL^(-1) to form embryogenetic callus.

以油茶子叶块为外植体，在附加2.0mgL^(-1)2，4-D和1.0 mgL^(-1)KT的MS培养基上进行培养，观察诱导产生的体细胞胚性愈伤组织细胞学结构。

The preliminary bioassay showed that some title compounds exhibited certain fungicidal activities and cucumber cotyledon root-formation promoting activities.

初步的生物活性测试结果表明，部分化合物具有一定的杀菌活性和促进黄瓜子叶生根活性。

The cotyledon explants excised from 5-day-old germfree seedlings were cultured on the MS medium containing 1.0 mg/L 6-BA in darkness for 3 days, and then further cultured under light condition for induction of adventitious buds.

结果显示：将从5 d龄甜瓜无菌苗上切取的子叶外植体接种在MS+6-BA1 mg/L的不定芽诱导培养基上，黑暗条件培养3 d，再转至光下继续培养，诱导出高效不定芽丛。

The preliminary bioassay indicated that some of the target compounds displayed good herbicidal ac-tivity against Brassica campestris L at the dosage of 100 mg/L.

初步生物活性测试结果表明：该系列部分化合物在100 mg/L的浓度下对双子叶植物油菜显示出较好的除草活性。

Compared with the dicot, the monocots preferred GC-rich tri- and hexa- motifs very much, especially in rice where 23.6 CCG motif occurred in 100kb ESTs.

与双子叶植物大豆相比，单子叶植物似乎更偏好富含GC的三碱基和六碱基重复单元，特别是水稻中平均每100kb EST就有23.6个CCG类型的SSR出现。

Studies on several floral homeotic mutants in dicots, mainly in Arabidopsis, Snapdragan and Petunia, established the ABCDE model for the determination of floral organ identities.

根据对双子叶模式植物拟南芥、金鱼草和矮牵牛遗传突变体的研究，提出了花发育的ABCDE模型。

Cotyledons and hypocotyls of Lesquerella fendleri were used as explants to induce callus on MS media with different hormone combinations.

以Lesquerella fendleri下胚轴和子叶作为外植体，研究了不同的激素浓度和组合对於愈伤组织诱导和植株再生的影响。

OBJECTIVE:Study on the chemical constituents of essential oil from the leaves of Litsea mollia Hemsl.

目的：研究毛叶木姜子叶挥发油的化学成分，并与其果油的化学成分作比较。

Monoterpenes and sesquiterpenes are the major chemial constituents in the oil from the leaves of Litsea mollia Hemsl.They are very different from those of the essential oil from the fruits of Litsea mollia Hemsl.

毛叶木姜子叶挥发油的主要成分为单萜和倍半萜，与果实挥发油的化学成分相差很大。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。