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The influence of environmental factors on seed germination ability between five exotic weeds, i.e., floss flower Ageratum houstonianum Mill.

本研究针对台湾五种外来杂草在不同环境下之发芽能力进行比较分析，包括紫花霍香蓟Ageratum houstonianum Mill。

Seeds 1-12, smooth or occasionally furrowed, albuminous or exalbuminous, sometimes winged, wing membranous, basal, exarillate or aril basal to completely enveloping seed, aril membranous, fleshy, rarely mucilaginous; cotyledons flat, foliaceous or thick, connate, germination epigeous.

种子1-12，光滑或者偶尔有皱，具胚乳或无胚乳，有时具翅，翅膜质，基生，无假种皮或有假种皮，假种皮基生或完全包围种子，膜质、肉质，很少有粘液子叶平，叶状或者厚，合生，发芽时出土。2n = 8，12，14。

At germination, the embryo produces gibberellin, which stimulates the aleurone layer to synthesize enzymes, especially amylase.

在种子萌发过程中，胚产生赤霉素，赤霉素可以刺激糊粉层合成一些酶特别是淀粉酶。

The results showed that alkali stress influenced the seed germination and seedling growth.

结果表明：碱胁迫影响谷子的萌发和幼苗生长。

These compounds have no effect on spores germination and hyphae growth of Alternaria solani ,but they can specifica.

作者分离并提纯了马铃薯和番茄早疫病菌的致病因子交链孢酸。

Through literatures and examples, this study may generalize six concrete formulae of anamorphosis: deconstruction, deformation, generation, reconstruction, germination, transformation and the abstract conceptual mimicry.

本创作运用视觉形态观察法，分析脏器原型与拟态对象；透过相关理论及实例，归纳出拟态在视觉设计上的六种具象形变法则：解构、变形、增生、重组、繁衍、转化及抽象的观念拟态。

The results suggest: the three culturalss pollen germination percentage were more than 60% 4 h after cultured in liquid culture medium composed 10% sucrose, 24℃; Florescence most concentrated April third-tenth (2003); For Zaomeisu and Qiyuesu ,their anthotaxy and flower self setting fruit percentage were more than 90%,except for China pear 1, anthotaxy self setting fruit percentage was 48.3%, flower self setting fruit percentage was 33.1%; Their cross-compatibility was higher, anthotaxy and flower self setting fruit percentage almost reached 100%, the lowest also reached 94.9%, but last self-compatible gathering fruit percentage was lower comparatively and fruit average seed numbers were lower, while cross-compatible gathering fruit percentage and fruit average seed numbers were closed to that of nature pollination.

对梨品种亲缘关系很近的早美酥、中梨1号、七月酥等进行的花粉发芽率、花期调查、自交亲和性、异交亲和性调查的结果表明：三者的花粉在10%的蔗糖液培养基上，24℃左右培养4h后花粉发芽率均能达到60%以上；三者的花期大都集中在4月3日-10日(2003年)；早美酥、中梨1号、七月酥的自花授粉坐果率，除中梨1号的花序自花授粉座果率为48.3%，花朵自交座果率为33.1%外，早美酥、七月酥的花序自交座果率和花朵自自花授粉座果率均达到90%以上；它们的异花授粉坐果率更高，在本试验中花序坐果率和花朵坐果率都可达到94%以上，但最终采果率自花授粉的相对低一些，果实平均种子数也低，异花授粉的最终采果率和果实平均种子数与自然授粉条件下的近似。

The results showed that the apolar fraction of the root exudates from the highly resistant cultivars could kill the pathogen. Those of the general resistant cultivars could inhibit the spore germination and hyphal growth,while the sensitive cultivars couldn't.

荧光显微镜观察结果表明：高抗枯萎病的品种根系分泌物的有机成分对病原菌孢子有致死作用，中抗品种的对病原菌孢子萌发、菌丝的生长有显著抑制作用，相反感病品种的根系分泌物则能够起促进作用。

However,the onion exudates of soaking 2.5 and 5 hours had significantinhibition effect on both zoospore germination and appressorium formation.

浸泡2.5和5小时的洋葱浸出液对游动孢子萌发和附着胞形成均有抑制作用。

In the stage of early hypha growth, spore germination, rapid filamentous growth stage and appressorium formation, the STK1 gene expression could be detected.

在产生分生孢子前、产生分生孢子时、菌丝的对数生长期和产生附着胞时都可以检测到STK1基因的表达。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。