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月季育种
相关语句
  rose breeding
     Trend analysis of rose breeding
     现代月季育种动向分析
短句来源
     Review of Research Measures and Development Trend of Rose Breeding
     月季育种研究现状分析
短句来源
     When considered how to step up processes in rose breeding,studies are made for finding the effect of seed germination factors.
     针对月季远缘杂交育种中周期长而且效率低的难题,对一些蔷薇、月季及其杂种种子进行了不同萌发条件下的种子发芽及胚胎培养试验,希望找出加快月季育种进程的途径.
短句来源
     Results of experiments show that the main factor causing rose seed dormancy lies in the inhibitor in seed coat Culture in vitro of mature embryos is achieved successfully in breaking seed dormancy,getting normal seedlings and thus shortening the period of rose breeding.
     结果表明通过成熟胚的培养可以去除抑制种了萌发的因素,略去种子休眠期从而缩短月季育种周期.
短句来源
  “月季育种”译为未确定词的双语例句
     This paper reports the chromosome numbers and karyotypes of some parents and F_1 hybrid seedlings in the breeding Rejuvenation Rose Group.
     本文报道了在刺玫月季育种中使用的6个亲本和4个F_1代杂种的染色体数目和核型。
短句来源
     Some Observations of Chromosomes during Breeding New Cultivars for Establishing A Rejuvenation Rose Group
     培育刺玫月季新品种的初步研究(Ⅱ)——刺玫月季育种中的染色体观察
短句来源
     Some problems concerning karyotype analysis among Rosa species and the cultivars and breeding for establishing Rj. Rose Group were discussed.
     文中讨论了与刺玫月季育种有关的细胞遗传学问题。
短句来源
  相似匹配句对
     Review of Research Measures and Development Trend of Rose Breeding
     月季育种研究现状分析
短句来源
     Trend analysis of rose breeding
     现代月季育种动向分析
短句来源
     Plant Breeding by Genetic transformation
     转基因育种
短句来源
     P ig Breeding
     猪的育种
短句来源
     STUDIES OF BLACK-SPOT DISEASE ON ROSE
     月季黑斑病的研究
短句来源
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  rose breeding
The advantages and limitations of such an interaction type for future rose breeding programmes and for marker-assisted selection strategies are discussed.
      
This is also in accordance with the reported history of rose breeding which makes it highly probable that rose genomes comprise mosaics of different species genomes.
      
Rose breeding is now open to the full range of in vitro genetic manipulation techniques involving protoplast technology.
      
In the year 1946, Lamments for the first time reported the use of embryo culture in rose breeding.
      
Rose breeding firms exist in every major rose growing country and new cultivars move between countries rapidly.
      


This paper reports the chromosome numbers and karyotypes of some parents and F_1 hybrid seedlings in the breeding Rejuvenation Rose Group. The results are as follows: in breeding for Rejuvenation Rose Group the parent plants Rosa primula 2n=2x=14=14m, Rosa xanthina f. normalis 2n=2x=14=14m, Rosa hugonis 2n=4x=28=24m+4sm, Rosa cv. Qeen Elizabeth 2n=4x=28=20m+8sm, Rosa cv. Qiushui Furong 2n=4x=28=24m+4sm, Rosa cv. Danfeng Chaoyang 2n=4x=28=28m (2SAT); the F_1 hybrid seedlings: 8401 (Rosa primula×Rosa cv. Zaoxia)...

This paper reports the chromosome numbers and karyotypes of some parents and F_1 hybrid seedlings in the breeding Rejuvenation Rose Group. The results are as follows: in breeding for Rejuvenation Rose Group the parent plants Rosa primula 2n=2x=14=14m, Rosa xanthina f. normalis 2n=2x=14=14m, Rosa hugonis 2n=4x=28=24m+4sm, Rosa cv. Qeen Elizabeth 2n=4x=28=20m+8sm, Rosa cv. Qiushui Furong 2n=4x=28=24m+4sm, Rosa cv. Danfeng Chaoyang 2n=4x=28=28m (2SAT); the F_1 hybrid seedlings: 8401 (Rosa primula×Rosa cv. Zaoxia) 2n=2x=14=12m+2sm, 8601 (Rosa cv. Queen Elizabeth×Rosa hugonis)2n=4x=28=28m, 8703 (Rosa cv. Danfeng Chaoyang) 2n=4x=28=28m, 8706 (Rosa cv. Qiushui Furong×Rosa primula) 2n=3x=21=15m+6sm. They all fall in to the 1A type. Some problems concerning karyotype analysis among Rosa species and the cultivars and breeding for establishing Rj. Rose Group were discussed.

本文报道了在刺玫月季育种中使用的6个亲本和4个F_1代杂种的染色体数目和核型。染色体数目及形态,亲本报春刺玫2n=2x=14=14m,单瓣黄刺玫2n=2x=14=14m,黄蔷薇2n=4x=28=28m,‘粉后’2n=4x=28=20m+8sm,‘秋水芙蓉’2n=4x=28=24m+4sm,‘丹凤朝阳’2n=4x=28=28m(2SAT);杂交种8401(报春刺玫ב早霞’)2n=2x=14=12m+2sm,8601(‘粉后’×黄蔷薇)2n=4x=28=28m,8703(‘丹风朝阳’×报春刺玫)2n=4x=28=28m,8706(‘秋水芙蓉’×报春刺玫)2n=3x=21=15m+6sm。核型均为1A型。文中讨论了与刺玫月季育种有关的细胞遗传学问题。

This paper deals with the pollen, morphology of 5 parent plants and 3 F_1 hybrid seedlings during breeding of new cultivars for establishing a Rejuvenation Rose Group. They were examined under SEM. Most pollens of Rosa xanthina and Rosa cv. Goldilocks are not viable and can not be used as paternal parents. So are some F_1 seedlings. Pollen grain surface patterns can be differentiated between parents and their F_1 seedlings. F_1's differ from their parents in exine ornamentation. But,all species and cultivars...

This paper deals with the pollen, morphology of 5 parent plants and 3 F_1 hybrid seedlings during breeding of new cultivars for establishing a Rejuvenation Rose Group. They were examined under SEM. Most pollens of Rosa xanthina and Rosa cv. Goldilocks are not viable and can not be used as paternal parents. So are some F_1 seedlings. Pollen grain surface patterns can be differentiated between parents and their F_1 seedlings. F_1's differ from their parents in exine ornamentation. But,all species and cultivars of Rosa are similar in the gross morphology of their pollen grains.

采用扫描电镜,对刺玫月季育种中使用的5个杂交亲本和3个F_1杂种花粉,进行观察和研究。通过对花粉形态的比较研究,讨论花粉败育对刺玫月季育种的影响,及亲本与杂交种在花粉外壁纹饰上的相关性。

28 parent plants and hybrid seedlings with different cold-hardiness were studied using the tissue electrical resistance method and the restoring growth test. A numeral avometer was employed to determine the electrical resistance of the shoot segment of parent and hybrid seedling tissue. The cold hardiness of parent plants and that of some hybrid seedlings was evaluated by calculating the survival rate after different freezing temperature treatments. The relationship between tissue electrical resistance and freezing...

28 parent plants and hybrid seedlings with different cold-hardiness were studied using the tissue electrical resistance method and the restoring growth test. A numeral avometer was employed to determine the electrical resistance of the shoot segment of parent and hybrid seedling tissue. The cold hardiness of parent plants and that of some hybrid seedlings was evaluated by calculating the survival rate after different freezing temperature treatments. The relationship between tissue electrical resistance and freezing temperatures and that between tissue electrical resistance and the survival rate of parent plants was established by regression analysis. Based on this model, the cold hardiness of some hybrid seedlings was evaluated. The ralationship of cold hardiness between some parent plants and their hybrid seedlings is discussed.

对刺玫月季育种中的部分亲本和杂交种的枝条,进行不同温度冰冻处理后,采用电阻法测定其电阻值;同时,进行生长恢复试验。依据电阻测定值及扦插存活率,确定植株的抗寒能力。对一些亲本和杂交种枝条的电阻测定值进行回归分析,并建立电阻值与存活率的相关数学模型;通过与相关曲线的对比,结合越冬后抽条率的统计,对一些杂交种的抗寒性进行预测。从遗传角度初步探讨了亲本与子代的抗寒性关系。最后提出了在育种中进行抗寒性研究的可行方法。

 
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