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水韭

与 水韭 相关的网络例句 [注:此内容来源于网络,仅供参考]

Fern species are usually distinguished by their leaf shapes, venations, scales, sporangia, and indusium, etc.

蕨类又分为真蕨和拟蕨两类;前者孢子囊生长在叶片,包括一般常见的蕨类;后者的孢子囊长在茎干上,包括其他石松科、卷柏科、水韭科及木贼科。

Low CR and low rates of sporeling establishment were important contributing factors for the endangerment Isoetes in China. This study has significance to the ontogeny of Isoetes.

研究表明,偏低的幼苗成活率可能是中华水韭居群规模难以扩大的主要原因之一。

Quillworts are heterosporous, mainly aquatic perennials, with a dense rosette of tubular quill-like leaves arising from a short, stout rootstock.

水韭目的植物具有异型孢子,是多年水生植物。其管状条形叶密集簇生于粗短的根茎之上。

Lower vascular plants coextensive with the family Lycopodiaceae; in some classifications includes the Selaginellaceae and Isoetaceae.

与石松科同延的低等脉管植物;在某些分类中,包含卷柏目和水韭目。

Isoetales An order of the LYCOPHYTA containing two genera-Iso-etes, found in most parts of the world, and Stylites, found only in the Peruvian Andes.

水韭目:石松门植物的一个目,包括两个属,水韭属广布于世界各地,剑韭属仅分布于秘鲁安第斯山脉。

Any of several vascular, spore-bearing, aquatic or marsh plants of the genus Isoetes having short rhizomes and quill-like leaves.

水韭一种水韭属的、有维管的、含孢子的水生或沼生的植物,长有短根茎和羽管状的叶子

Isoetes found on Taiwan.

台湾新发现之蕨类--水韭

The proportion of megaspores to forming sporelings was only about 12%. Frequently no more than 1% of the sporelings grow up to become mature individuals.

在已萌发的雌配子体中,幼苗的形成率仅为12%,模拟中华水韭野外生长的条件下移栽幼苗,其成活率非常低,不足1%。

Sinensis, Effects of temperature on the megaspores' germination rate were compared and discussed. Result shows the highest germination rate is about 47%, after megaspores were cultured for 8~10 weeks under 4℃ for 5 days beforehand and then grows under 20℃ with light.

结果显示:中华水韭大孢子的萌发率在培养后第8~10周达到高峰,最高萌发率为47%,最佳萌发条件为低温4℃预处理5d后20℃恒温光照培养。

The study was done to understand the first protected wild and critically endangered aquatic fern in China-Isoetes sinensis and to provide more detailed proof about its artificial propagation and emigrate protection. The germination rate of megaspores were statisticed through aseptic culture of spores for rapid propagation in I.

为进一步了解中国一类保护的水生极危野生植物中华水韭以及在大量人工繁殖和迁地保护等方面提供更为详实的证据,运用无菌培养、快速繁殖的方法对中华水韭的大孢子萌发率作了统计,探讨了不同温度对其大孢子萌发的影响。

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