cross breeding

Breeders have bred a great deal of new flower varieties by taking routine cross breeding, radiation breeding, tissue culture breeding, polyploidy breeding, and spaceflight breeding etc.

人们通过常规杂交育种、辐射育种、组织培养育种、多倍体育种、航天育种等手段培育了大量的花卉新品种。

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Observation of affinity in the course of cross breeding between Mallard and Beijing duck

绿头野鸭与北京鸭杂交亲合过程的观察

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Dr Russel is creating an elite herd by cross-breeding goats from around the globe.

拉塞尔博士正通过把全球各地的山羊品种进行杂交来培育一个优良种群。

柯林斯高阶英汉双解学习词典

Effect, smaller S. c. a. variance and the more recessive gene to select good parent are applied to cross breeding.

按照G.c.a.效应大、S.c.a.方差小和显、隐性基因多寡筛选抗旱小麦杂交育种的优良亲本，长武131和84129分别属于源、库2个不同类型的优良亲本；

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This cross'breeding may be the reason why the ancestors'believe that sexual relations could affect one's health.

十字架供养可能是祖先为什么相信性的关系可以影响健康的理由.

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studies on the genetic improvement of the mud carp ( cirrhinus molitorella) 1. selective cross breeding and analysis of genetic traits

鲮鱼遗传改良的研究Ⅰ.杂交育种和遗传性状分析

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Preliminary Report on Cross-breeding of Tagetes erecta

万寿菊杂交育种实验初报

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By cross-breeding with our native red deer, the sika deer have affected the gene pool.

通过与我们本地的赤鹿杂交，梅花鹿的基因库已经发生了改变。

《柯林斯高阶英汉双解学习词典》

Scientists are cross-breeding chrysanthemums to ensure that flowers bloom in August.

科学家正在培育杂交菊花,保证会在8月开花.

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Preliminary Study on Cross Breeding Technological System of Rose in Beijing Forestry University

北林月季杂交育种技术体系初探

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By cross-breeding with our native red deer, the sika deer have affected the gene pool

通过与我们本地的赤鹿杂交，梅花鹿的基因库已经发生了改变。

《柯林斯高阶英汉双解学习词典》

Recent advances in genetic breeding of Agaricus bisporus involving artificial selection, cross breeding, protoplast fusion and gene engineering have been summarized, and the future prospects discussed.

综述了人工选择育种、杂交育种、原生质体融合育种和基因工程育种等双孢蘑菇遗传育种研究的现状及进展，并展望了上述研究领域的发展趋势。

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The cataract transgenic mice strains were established by cross breeding.

经传代培育,建立了白内障转基因小鼠鼠系.

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This result indicated that Tagetes erecta can be used in the cross breeding and hybrid production through three lines combination.

这一遗传特性表明，万寿菊可通过三系配套，用于杂交种选育和生产。

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A Cross Breeding Method for Sex-linked Balanced Lethal Line of Silkworm

家蚕性连锁平衡致死系的杂交改良方法

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