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育种实践
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  breeding practice
    The evi-dence of natural evolution and breeding practice shows that makes it possible in obtaining the variety which could satisfy this requirement by crossing between spe-cies, especially, spieces of crisp-flesh and soft-flesh.
    天然进化和育种实践证明:通过种间杂交,主要是软肉和脆肉的种间杂交,有很大可能获得符合这一要求的品种。
短句来源
    The analyses on the nitrate content variation between parents and filial generation and on the nitrate content distribution among different lines of filial generation population showed that the nitrate content in spinach was controlled by the additive genes. Breeding practice also proved that the hybrid with low nitrate content and high yield could be obtained by crossing parents with low nitrate content.
    通过亲子代硝酸盐含量变异的分析以及对杂交后代群体不同株系硝酸盐含量变化的分布状况,初步认为蔬菜硝酸盐含量主要由累加基因所控制,可通过筛选低NO3-的亲本杂交,有可能获得NO3-含量低且高产的杂交一代品种,育种实践验证了上述分析的正确性。
短句来源
    According to the experimental results ,the estimation of genetic components and parents materials of spring protective cucumber is agreed with usual breeding practice.
    实践证明,用该法评价春大棚黄瓜组合及亲本材料与育种实践是一致的。
短句来源
    This review is focused on the developments of graft hybridization in recent years. The important role of graft hybridization in genetic research and breeding practice of fruit plants has been also discussed.
    介绍了目前果树嫁接杂交研究的概况,并对嫁接杂交在果树遗传研究和育种实践中的重要作用作了论述
短句来源
  “育种实践”译为未确定词的双语例句
    Some aspects about breeding and productive utilization of genetic resource in Asparagus bean are discussed.
    并从性状遗传与育种实践、遗传资源与生产利用两方面对长豇豆遗传资源的研究利用作了讨论。
    Protoplasts culture and fusion, which can expanded the genetic recombination and transfer distant traits, have great potential for breeding.
    原生质体培养及融合技术能扩大遗传重组范围,促进远缘性状的有效转移,在应用于育种实践时显示出巨大的应用潜力。
短句来源
    The heritability of fruit shape index estimated by its generation variance is higher,the broad sense heritability is 83 60%,the narrow sense heritability is 65 94%,it has higher selection effect in breeding production.
    由其世代方差估算果形指数的遗传力较高 ,广义遗传力为 83 6 0 % ,狭义遗传力为 6 5 94 % ,在育种实践中 ,具有较高的选择效果。
短句来源
    Inheritance of Some Characters in Ornamental Peaches and Breeding of New Varieties in Foreign Countries
    观赏桃主要性状遗传规律与国外育种实践
短句来源
    Linkage Analysis between Genes for Dwarf Tree and Round Fruit Shape in Peach(Prunus persica L.)
    矮化蟠桃的育种实践与连锁遗传分析
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  breeding practice
The results obtained are discussed in terms of the relationship between the genetic variation of longevity and developmental rate and prospects of their application to breeding practice.
      
The issues of potential practical application of imprinting in breeding practice are discussed.
      
The exhibition space of the cattle fair and the surveying eye of the cattle fair judge aim to recreate a laboratory space within the relatively "artisanal" and approximate context of the breeding practice.
      
Hybrid necrosis in wheat is a barrier to gene transfer in wheat breeding practice.
      
A set of 13 probes was established as core probes for subspecies differentiation and a pooled blotting analysis was carried out to facilitate the application of RFLP in rice genetics and breeding practice.
      
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There are 13 species and 1000 varieties or more of Chinese pears which have been classified into oriental pear. The Chinese pear has its distribution and grow-ing region in a wide range. It is valuable and successful for its disease resistance and adaptability, especially, among cultivars, consisting of both varieties with crisp flesh and soft melting flesh. The former dominants over the latter. All these are characteristic of the pear germ plasm source in China. It is very significant to pear breeding that...

There are 13 species and 1000 varieties or more of Chinese pears which have been classified into oriental pear. The Chinese pear has its distribution and grow-ing region in a wide range. It is valuable and successful for its disease resistance and adaptability, especially, among cultivars, consisting of both varieties with crisp flesh and soft melting flesh. The former dominants over the latter. All these are characteristic of the pear germ plasm source in China. It is very significant to pear breeding that the Chinese wild species and cultivars are composed of the gen-es involving many species that result from the natural evolution of complex crossing between species or varieties in China, occuring in nature. In view of the actual situation of China, although it is quite many of crisp-flesh varieties in China, it has a disadvantage in common that the fruit flavor is less stronger in crisp-flesh variety than in soft one. For the most of growing regions, it is nec-cessary to breed the variety, which is crisp-flesh with stronger aroma. The evi-dence of natural evolution and breeding practice shows that makes it possible in obtaining the variety which could satisfy this requirement by crossing between spe-cies, especially, spieces of crisp-flesh and soft-flesh. Generally, crosses between species also makes it possible to markedly improve its disease resistance, winter hardiness and productivity. A large number of data are included in this paper which suggests that the research of pear germplasm is important for pear breeding, and will be a reference in chinese pear breeding when the pear germ plasm source are available.

我国的梨属于东方梨系,有13个种类,1000多个品种,分布、栽培范围广,抗性、适应性强。栽培品种包括软肉和脆肉两种类型,而以脆肉型为主。这构成我国梨树种质资源的特点。我国现有梨树,是野生种类和栽培品种种间和品种间杂交天然进化的结果,具有多种类的基因组成,这对梨的育种具有重要意义。但普遍存在的一个缺点是,脆肉品种与秋子梨、西洋梨相比,风味不够浓郁。我国大多地区需要脆肉风味浓厚的品种。天然进化和育种实践证明:通过种间杂交,主要是软肉和脆肉的种间杂交,有很大可能获得符合这一要求的品种。一般说,种间杂交还能使抗寒性、抗病性、丰产性得到显著增进。文内列举了大量的材料,论证了梨的种质资源研究对梨树育种的重要性,可供我国梨树育种工作者参考。

This analysis of acid phosphatase was carried out in different Cul-tivars of BraSsica juncea and their original parental species, Brassica campestris, B. nigra. The origin of vegetable mustard was discussed. The acid phosphatase isozymes zymogram of B. juncea showed very closely related to B. campestris and B. nigra. It is very possible that the original parental species of vegetable mustard are wild black mustard and primitive Chinese cabbage derived from China. The isozyme zymogram showed conspicuous differences...

This analysis of acid phosphatase was carried out in different Cul-tivars of BraSsica juncea and their original parental species, Brassica campestris, B. nigra. The origin of vegetable mustard was discussed. The acid phosphatase isozymes zymogram of B. juncea showed very closely related to B. campestris and B. nigra. It is very possible that the original parental species of vegetable mustard are wild black mustard and primitive Chinese cabbage derived from China. The isozyme zymogram showed conspicuous differences among mustard cultivars, especially for Aps-Ⅰ region and Aps-Ⅱ region. The results suggested that Aps-Ⅰ region could be used as genetic marker region in mustard germplasm research and utilization. The isozyme zymogram showed few differences among cultivars in B. campestris.

本研究利用聚丙烯酰胺凝胶电泳法研究了芥菜(Brassica juncea Coss)不同类型品种和其原始亲本种白菜(Brassica campestris L.)、黑芥(Brassi-ca nigra Kock)的酸性磷酸酶同工酶酶谱的表现,分析了芥菜的起源与白菜、黑芥的关系。研究结果表明,芥菜的酸性磷酸酶同工酶酶谱表现与白菜、黑芥的酸性磷酸酶同工酶酶谱具有较强的同源性。作者初步认为菜用芥菜的原始亲本种很可能是起源于中国的野生型黑芥(伊犁油菜)和白菜。 芥菜不同类型品种的酸性磷酸酶同工酶酶谱表现出一定的差异,特别是APS—Ⅰ和APS—Ⅱ两个酶区,品种间差异明显。APS—Ⅰ比APS─Ⅱ表现更加稳定,APS—Ⅰ可做为标记酶区在芥菜种质资源研究和育种实践中加以利用。不同类型白菜的酶谱表现差异较小。供试大白菜(B.campestris L.ssp.pekinesis(Lour)Olsson)品种间酶谱表现完全一致,菜心(B.cam-pestris ssp.chinensis var.parachinensis)的酶谱表现与大白菜的谱带基本一致,仅小白菜(B.campestris L.ssp.chinens...

本研究利用聚丙烯酰胺凝胶电泳法研究了芥菜(Brassica juncea Coss)不同类型品种和其原始亲本种白菜(Brassica campestris L.)、黑芥(Brassi-ca nigra Kock)的酸性磷酸酶同工酶酶谱的表现,分析了芥菜的起源与白菜、黑芥的关系。研究结果表明,芥菜的酸性磷酸酶同工酶酶谱表现与白菜、黑芥的酸性磷酸酶同工酶酶谱具有较强的同源性。作者初步认为菜用芥菜的原始亲本种很可能是起源于中国的野生型黑芥(伊犁油菜)和白菜。 芥菜不同类型品种的酸性磷酸酶同工酶酶谱表现出一定的差异,特别是APS—Ⅰ和APS—Ⅱ两个酶区,品种间差异明显。APS—Ⅰ比APS─Ⅱ表现更加稳定,APS—Ⅰ可做为标记酶区在芥菜种质资源研究和育种实践中加以利用。不同类型白菜的酶谱表现差异较小。供试大白菜(B.campestris L.ssp.pekinesis(Lour)Olsson)品种间酶谱表现完全一致,菜心(B.cam-pestris ssp.chinensis var.parachinensis)的酶谱表现与大白菜的谱带基本一致,仅小白菜(B.campestris L.ssp.chinensis(L.)M.)的酶谱表现与大白菜有一定的差异。

The researches on the relationship between nitrate content and leaf characters showed that varieties with light color and smooth surface leaf contained lower nitrate content than that of varieties with deep color and wrinkled surface leaf. The analyses on the nitrate content variation between parents and filial generation and on the nitrate content distribution among different lines of filial generation population showed that the nitrate content in spinach was controlled by the additive genes. Breeding practice...

The researches on the relationship between nitrate content and leaf characters showed that varieties with light color and smooth surface leaf contained lower nitrate content than that of varieties with deep color and wrinkled surface leaf. The analyses on the nitrate content variation between parents and filial generation and on the nitrate content distribution among different lines of filial generation population showed that the nitrate content in spinach was controlled by the additive genes. Breeding practice also proved that the hybrid with low nitrate content and high yield could be obtained by crossing parents with low nitrate content.

本文研究了蔬菜性状特征对NO3-含量变化的关系,指出叶片光滑、色淡的类型要比叶片皱缩、色深的类型NO3-含量低。通过亲子代硝酸盐含量变异的分析以及对杂交后代群体不同株系硝酸盐含量变化的分布状况,初步认为蔬菜硝酸盐含量主要由累加基因所控制,可通过筛选低NO3-的亲本杂交,有可能获得NO3-含量低且高产的杂交一代品种,育种实践验证了上述分析的正确性。

 
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