多倍体是具有两套以上染色体的植物。
A polyploid is a plant with more than two complete sets of chromosomes.
异源多倍体植物在自然界中广泛分布。
Allopolyploid plants have a wide distribution in the nature.
多倍体苗叶片厚实、紧凑、植株较矮；
多倍体是植物具有两套以上的染色体。
A polyploid is a plant with more than two complete sets of chromosomes.
冰草属的多倍体并非严格的同源多倍体。
The type of polyploid in Agropyron was not strictly autoploid.
亚致死温度是低温诱导多倍体的合适温度。
Sublethal temperature might be suitable for polyploid inducement of cold shocks.
体细胞；多倍体物种。
用环剥树皮等方法可以诱导多倍体无性系提早开花。
Girdling and other treatments can induce polypoid plants to flower earlier.
表明三个枇杷品种的多倍体在多倍化后基因组均发生了变异。
The results indicate all the three loquat cultivars polyploid occurred genomic variation after polyploidy.
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。
They are complex polyploids, being partly tetraploid and partly hexaploid.
所有的梨亚科是由两个远缘祖先类型双杂交演化的异源多倍体。
All the Pomoideae were allopolyploids drived from a doubled hybrid between two remote ancestral types.
该研究在探讨多倍体鱼的发生及鱼类遗传育种方面具有重要意义。
This research had important significance in studies on the formation of polyploidy fish and fish breeding.
脊椎动物中，多倍体往往是致死的，而多倍体植物却可以很好的存活。
In vertebrates, polyploidy tends to be lethal, but plants can do just fine with all this extra genetic material.
与此同时，单倍体细胞逐渐减少，产生大量多倍体和非整倍体细胞。
Meanwhile the ratio of haploid cell in the callus dropped gradually, and a lot of polyploid and aneuploid cells appeared.
细胞融合和体细胞染色体加倍是获得杨树多倍体种质的有效途径之一。
Chromosome doubling for somatic cells and somatic hybridization via cell fusion are effective methods to create polyploidy.
2克隆植物生态学三脉紫菀多倍体复合体是能进行克隆生长的克隆植物。
The evolution of morphological characters in this complex is discussed . 2 . clonal plant ecology a . ageratoides complex is a clonal plant.
上述研究结果预示同源和异源多倍体的形成可能与其近交衰退的水平有关。
The above-mentioned results indicate that the formation of autopolyploid and allopolyploid may be related to the level of inbreeding depression.
一粒系小麦是多倍体小麦染色体组的供体物种之一，是小麦的重要基础物种。
Einkorn wheat is the donor species of polyploidy wheat. It is one of the important basic species of Triticum.
主要研究结果如下：1不同品种诱导多倍体的最佳处理时间和浓度组合不同。
The major results are as following:1 The optimum combinations of colchicine concentration and treatment duration for different cultivars are different.
多倍体药用植物因器官巨大，产量高，具有重要的药用和经济价值而倍受人们的关注。
Medicinal polyploid plants attract great attention because of their gigantic organs, high yields and important medicinal and economic values.
文章概述了西瓜多倍体的产生途径、鉴定方法，西瓜多倍体育种的应用以及研究新动向。
In this article, ways of polyploidy breeding, the identification of polyploidy, application of watermelon polyploidy, and the prospective of watermelon polyploid breeding are reviewed.
不过我们也认识到，这一物种毕竟是一种多倍体(即存在多套染色体)，因此还存在较大的缓冲空间。
But we have the knowledge that the species is a polyploid [has extra chromosomes], so hopefully it has plenty of resilience.
本发明提供了一种利用薄荷离体茎尖诱导同源多倍体的技术，可用于薄荷的多倍体育种。
The invention provides a technique for inducing autopolyploid by using peppermint shoot tips, which can be used for breeding peppermint autopolyploid.
所有患者染色体核型均正常，未见染色体核型缺失及多倍体，均为46xy或46xx型。
The karyotype of their chromosomes were normal (46xy or 46xx), no chromosome aberration, chromosome loss and polyploid.
多倍体西瓜具有少籽、丰产、耐贮、对病虫害抗性较强、抗逆性好、果实含糖量高等优点。
Polyploid watermelon has many virtues such as seedless, high yield, good tolerance and transportation, high resistance to plant diseases and insect pests, and also high central soluble solids content.
多倍体出现率为87．5％，表明大鸭梨与苹果梨杂交组合在多倍体育种中具有特殊价值。
The ratio of polyploid produced was 87. 5 %, which has shown that crossing combination between Dayali and Pingguoli has special value in pear polyploid breeding.
远源杂交在植物物种进化上起着重要作用，往往是通过多倍体化或在二倍体水平上形成新物种。
Wide hybridization plays an important role in plant species evolution, and one that often leads to new speciation, either through polyploidization or at the diploid level.
远源杂交在植物物种进化上起着重要作用，往往是通过多倍体化或在二倍体水平上形成新物种。
Wide hybridization plays an important role in plant species evolution, and one that often leads to new speciation, either through polyploidization or at the diploid level.
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