tetraploid

Wx gene variation of tetraploid and diploid rice

同源四倍体与二倍体水稻Wx基因位点的遗传差异

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They are complexpolyploids , being partly tetraploid and partly hexaploid.

它们是复杂的多倍体, 其中一部分是四倍体,一部分是六倍体.

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It is extraordinarily important to select tetraploid lines for breeding sugar beet polyploid varieties.

摘要四倍体品系选育是甜菜多倍体育种不可缺少的重要环节.

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The survival rate of hardwood cutting of tetraploid R. pseudoacacia clone K4 was increased to 89.4% and its rooting time was shorter than the normal softwood cutting by using this method. 5.

本方法提高四倍体刺槐K4无性系的硬枝扦插成活率达90.6%，而且比常规嫩枝扦插缩短了生根时间。

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TESTING Inducing Tetraploid Plantlet of Averrhoa carambola

阳桃四倍体植株诱导试验

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However, the tetraploid embryos have half cell numbers less that the diploid embryos, in the same stage, as well, the development potency is weaker.

但是，与同一时期的二倍体胚胎相比，四倍体胚胎的细胞数目要少一半，而且发育能力要弱。

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The fact that the difference of genetic heterozygosity between the 0/ 1 method and the tetraploid method was nonsignificant ( p> 0.05) gave the evidence that the tetraploid method was also a suitable method to analyze SSR polymorphism in alfalfa.

通过0/1法和四倍体方法得到的遗传杂合度之间的显著性检验（p>0.05），证明四倍体方法也可用于紫花苜蓿微卫星多态性研究。

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Genetic Variation of Cold Tolerance Characters of Yunnan Rice Landraces at Indica and Japonica Rice Cropping Regions C-band polymorphism in tetraploid wheat ( Triticum turgidum) landraces from Qinghai and Gansu

籼粳稻区云南稻种耐冷性状遗传变异研究甘青地区四倍体小麦染色体C-带多态性

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Embryological Studies on the Crosses between Diploid and Tetraploid in Plant

植物二、四倍体杂交的胚胎学研究

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The oocyte is effectively a tetraploid cell.

卵母细胞是有效的四信体细胞.

词典精选例句

Chromosome count showed that the plants, containing non tetraploid cells besides amphidiploid, were chimeras.

染色体检查发现，除了四倍体之外，还存在其它倍性的细胞，呈嵌合体状态。

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Tetraploid of rainbow trout ( salmo gairdneri richardson) induced by heat shocks

热休克诱导虹鳟四倍体

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Cell cycle of diploid and tetraploid Meiwa Kumquat, Guoqing No.

测定了宁波金柑、国庆1号和伏令夏橙二倍体和四倍体细胞周期。

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By some unexplained mechanism, the entry of the bacterium into a tetraploid cell stimulates the plant cell to divide, and the continued division of these cells results in this formation of the nodule.

通过某种不明的机制，细菌侵入四倍体细胞后刺激了植物细胞的分裂，这样持续分裂导致了根瘤的形成。

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Sterilized plantlets of diploid, triploid and tetraploid carambola ( Averrhoa carambola) were used as experiment materials to study the optimum culture conditions for the multiplication, rooting and transplanting of the plant.

以二倍体、三倍体和四倍体阳桃无菌组培苗为材料，研究了不同倍性阳桃增殖、生根和移栽的条件与方法。

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Determination of Organic Acids of Tetraploid Isatis indigotica with High Performance Capillary Electrophoresis

高效毛细管电泳法测定四倍体菘蓝中有机酸的含量

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Since the first tetraploid watermelon was obtained in 1939, polyploidy breeding has always been the focus of watermelon breeding.

从1939年获得第一个四倍体西瓜以来，多倍体育种就一直是西瓜育种的一个热点。

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The stoma characters of both tetraploid and diploid Anthuriums were comparatively investigated.

对红掌四倍体和二倍体材料的气孔特征进行了研究.

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Evaluation on Antiendotoxic Action and Antiviral Action in vitro of Tetraploid Isatis indigotica

四倍体菘蓝体外抗内毒素、抗病毒作用评价

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According to flowering habit of tetraploid sugarbeet mother plant, it is suitable to pick up anther, before 6. 00 am and do artificial hybridization after 6. 30. The chromosome multiple should be appraised in early to middle June.

根据四倍体甜菜种株开花特性，采取花药于早6时前，人工杂交在6时30分后进行为宜。染色体倍数性鉴定应在6月初至6月中旬进行。

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In the tetraploid, pseudogamous species Rubus nitidioides, Haskall selected two plants . Haskall.

在四倍体 、 具假配子的种光悬钩子中选了二个植株.

词典精选例句

By comparing with other cytological data of Campanulaceae, this species is probably tetraploid and the genus Homocodon maybe close to Campanula and Adenophora in phylogeny.

通过比较桔梗科已有的大量细胞学资料认为该类群应该与风铃草属和沙参属所代表的类群关系较近。

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The invention relates to a cultivation method of the tetraploid dendrobium officinale.

本发明涉及一种铁皮石斛四倍体的培育方法.

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After the comparison of Lychnis fulgens diploid and tetraploid plant guard cell chloroplast numbers, the test results agree with the chromosome counting detection. That confirmed guard cell chloroplast counting were an effective method of determine level of Lychnis fulgens ploidy level.

通过比较剪秋罗四倍体植株气孔保卫细胞叶绿体数及其变异，其结果与染色体计数检测结果吻合，确认气孔保卫细胞叶绿体计数法是判定剪秋罗倍性水平的一种有效方法。

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A diploid/ tetraploid mosaic ( 60, xx/ 120, xxxx) in adult Chinese Holstein

一例染色体为60，XX／120，XXXX嵌合体的成年奶牛

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The tetraploid with the occurrence rates 2.5 % was observed in Angora goat.

研究发现,安哥山羊存在2. 5%的四倍体.

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Tetraploid cells are preferentially allocated to the extraembryonic tissues, such as placenta, rather than the fetus itself.

而在胎儿本身的组织中，很少能找到四倍体细胞的存在。

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This paper briefly deals with the history and status quo of mulberry polyploid breeding and describes characters and economic value of the polyploids, in particular triploid and tetraploid.

本文简述了国内外桑多倍体育种的历史与现状，以及多倍体特别是三、四倍体的特征特性和经济价值。

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Huagai King ', a tetraploid pear cultivar, was selected from the bud mutation of pear cultivar'Huagai Pear'.

‘花盖王’是从‘花盖梨’中选出的梨四倍体芽变新品种。

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It is yet an important way for polyploid breeding in mulberry through crossing the tetraploid with diploid and breeding triploid hybrid combinations by using induced tetraploid.

诱导和利用人工四倍体资源，与二倍体桑杂交，以及无性固定三倍体或配制三倍体杂优组合，仍是桑树多倍体育种的主攻方向。

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