无性系的
- 与 无性系的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the same observation time, the number of maternal ramets and daughter ramets, the total length and the number of stolon and branching intensity of P. flagellaria clone population were higher than P. anserina. But the average length of spacer and stolon of P. anserina were more than P. flagellaria.
在同一观测时期内,单位面积内蔓委陵菜无性系种群的母株数量、分株数量、匍匐茎总长度、匍匐茎条数以及分枝强度均高于鹅绒委陵菜种群;而鹅绒委陵菜的间隔子平均长度、匍匐茎平均长度均大于蔓委陵菜。
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It distributed generally in yellow or purple passionflower and a newly introduced clone "Tainong No.1" in Zhangzhou. It distroyed mature leaves and the peak of its field population appeared in November.
调查表明,卵形短须螨分布在漳州地区的紫色、黄色种西番莲和新引进的无性系&台农1号&上,主要为害植株成龄叶片,田间种群数量高峰期出现在11月份。
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Recent efforts in California with clones of this variety are very promising, producing medium-bodied reds with rich cherry or plumlike flavors and aromas.
最近的努力, 1857年无性系品种,这是非常有前途的,生产中型健全红人丰富樱桃或plumlike风味和口感。
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The growth of unmowed part of a clone did not affected by removing ways in ramet level. But the leave number per tiller was higher in treatments 2, 3, 4 and 7 at 2 months after cutting in tiller level.
在分株层次上,不论刈割方式如何都没有影响无性系未刈割部分构件的生长发育;在分蘖层次上,去除量较少的处理(2,3,4,7)中未刈割部分每分蘖叶数至刈割后2个月时增加较为显著。
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Through 7 years study, the variation regulation and model of white poplar were known well, and 3 best seed sources and30 best clones were screened, making the genetic gain more than 22~28 percent, The results presented here provide a scientific foundation for silvicultural division.
经过7年的研究,摸清了毛白杨的变异规律及模式,筛选出3个种源,30个优良无性系,遗传增益达22%~28%,为造林区划提供了科学依据。
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The content of flavanone and lactone in leaf and the leaf output were studied by randomizing block arrangement of 31 gingko female varieties and 4 staminiferous plant type single clone.
采用31个银杏雌性品种和4个雄株类型的单株无性系,随机区组排列,对叶产量性状及其与叶产量的相关性,叶黄酮、内酯含量进行了研究。
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In this paper, 12 years old Chinese Fir clones were studied on the genetic variation of growth properties, basic density and tracheid morphological characteristics. The main results were as follows.
本文综合研究了12年生杉木无性系试验林的生长性状、基本密度和管胞形态的遗传变异规律。
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Such notable professionals as John Rivers hybridized various tree fruits, and introduced superior clones from France and elsewhere.
著名的专业工作者如John Rivers对各种果树进行了杂交,并从法国和其他地方引进优良的无性系。
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Taken from a 9 year old clonal test site were analyzed in order to investigate the genetic variation of wood properties, including air dried wood density and some mechanical properties.
结果表明,木材气干密度组成及力学性质在无性系间存在显著或极显著差异,并受到中等强度的遗传控制;气干密度的径向和纵向变异与多数研究结果一致;力学性质除抗弯弹性模量和端面硬度外其株内变异趋势也基本符合木材学理论。
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Raising its fruit yields, breeding excellent varieties on the family or the clone by the heredity improvement that provided the plentiful produce the steady produce and high efficiency, those were keys of biodiesel industry to study and develop for the future.
通过遗传改良,提高掌叶木果实产量,选育丰产稳产高效的掌叶木家系或无性系良种,是今后掌叶木生物柴油产业化研发的关键。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。