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conventional cross
相关语句
  常规杂交
     The mutagenic effect of major economic characters and favourable variation in M_(2)F_3 , and variated characteristics and selective effect in M_(3)F_4 were studied with early indica rice F_1seeds irradiated by~(137)Cs-γ rays for 4 single and 2 multiple cross combinations. Conventional cross breeding procedures were conducted as being the control with same cross combinations.
     用~(137)Cs-γ射线辐照籼稻4个单交和2个复交组合的F_1代种子,以常规杂交处理作对照. 结合育种实践,研究了M_2F_3代主要经济性状突变频率,有利性状变异率以及M_3F_4代的变异特点和选择效果。
短句来源
     Third, it is introduced apomictic gene into rice by conventional cross, combination of conventional cross and tissue culture method, and gene transfer technique.
     3.利用常规杂交、杂交与组织培养结合以及基因转移方法向水稻引入无融合生殖基因。
短句来源
     The survival rate of the autotriploid plants obtained by the conventional cross method was very low ( 0.07% ), but that obtained by ovary culture method was higher (0.78%). Which surpassed 11.14 times than that of the former.
     通过常规杂交法所获得的同源三倍体成活植株的频率很低(0.07%),而通过采用杂种子房培养法所获得的同源三倍体植株的成活率比较高(0.78%),后者的效率比前者要高出11.1?
短句来源
     More research was suggested for further utilization of Erianthus F 1 through conventional cross.
     建议进一步进行研究 ,探索能否通过常规杂交方法 ,对斑茅F1进一步加以利用。
短句来源
  “conventional cross”译为未确定词的双语例句
     Although conventional cross breeding is the main approach to breed new resistant variety, it is less efficient.
     二是利用新的基因工程技术来培育转基因抗病水稻。
短句来源
     Delay time characteristics of the SOI Cross coupling sense amplifier were analyzed by Hspice simulation and compared with conventional silicon Cross coupling sense amplifier,Delay time reduction of the SOI Cross coupling sense amplifier over conventional Cross coupling silicon sense amplifier is about 30%,and voltage differential is 0 05V.Finally,the circuit was adopted successfully in CMOS/SOI 64Kb SRAM with 40ns fast access time.
     采用Hspice软件对体硅的和新型的交叉耦合灵敏放大器进行模拟和比较 ,发现新型的交叉耦合灵敏放大器比体硅的交叉耦合灵敏放大器延迟时间缩短 30 % ,最小电压分辨可达 0 0 5V . 最后 ,我们成功地将该电路应用于CMOS/SOI 6 4KbSRAM电路 ,电路存取时间仅 40ns
短句来源
     IRBB52, IRBB54 and IRBB60 which have the polymeric BLB resistant genes were used as the donors of BLB resistant genes and crossed with the blast resistant restorer lines CDR448, Minghui 63. New restorer lines with resistance to both BLB and blast could be developed by anther culture or conventional cross breeding methods.
     育种上可利用聚合有多个白叶枯病抗性基因的IRBB5 2、IRBB5 4、IRBB6 0等作为抗源供体 ,与抗稻瘟病恢复系CDR44 8、明恢 6 3等杂交 ,利用花培、常规遗传选育等方法 ,选育双抗恢复系
短句来源
     A nonlinear genetic mathematical model for three piece bogie freight car with 35 degrees of freedom is set up,which can be utilized to analyze the nonlinear dynamic behavior of conventional,cross bracing,self steering and forced steering bogies respectively.
     建立了具有 35个自由度的三大件转向架货车系统通用非线性数学模型 ,可用于分析普通三大件转向架、侧架交叉支撑转向架、自导向和迫导向径向转向架货车的非线性动力学特性。
短句来源
     Compared with the conventional cross coupling filter, the proposed filter of two pole hexagonal open-loop resonator filter acquires more than 27.5% size reduction and provides an improved selectivity by a relatively small band-width.
     与传统两腔发夹形滤波器相比,这种两腔六边形结构的滤波器尺寸要缩小27.5%,频率选择性更高.
短句来源
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  相似匹配句对
     The conventional R.
     传统R.
短句来源
     Advance on Floral Conventional Cross-breeding
     花卉常规杂交育种的研究进展
短句来源
     and maize cross.
     与玉米杂交导入一个小麦加倍单倍体 (DH)植株中。
短句来源
     1. Conventional H. E.
     1.海洛因、吗啡、度冷丁慢性依赖和自然戒断后大鼠的表现
短句来源
     Cross The River
     Cross The River过河
短句来源
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  conventional cross
Various experimental techniques employed include conventional cross-sectional metallography, scanning electron microscopy, electron microprobe analysis, x-ray diffraction and others.
      
Alternatively, conventional cross-validation bandwidth selection is considered and performs rather well in simulation studies: Compared to standard pair-matching, kernel and ridge matching achieve reductions in MSE of about 25 to 40%.
      
However, determination of the self-compatibility of 'Osa-Nijisseiki' offspring requires a lot of time, 6 years or more, by conventional cross breeding.
      
In general, peptides are stable molecules, most of which retain their antigenicity after conventional cross-linking fixation and tissue processing, allowing standard immunocytochemical methods to be used for light- and electron microscopy.
      
The different hardness of fibre and coating makes it nearly impossible to use a conventional cross-section preparation.
      
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The tactics of fixing hybrids vigor of rice by apomixis are discussed in this article. Three steps of the research are posed. First, the basal demands of apomictic rice are determined. They are unsegregated offspring. Well developed endosperm, dominant nuclear gene controled obligate apomixis. There are three pathways to be obtained unsegregated offspring, i. e.diploidy spory. somatic apospory,somatic embryo derived from nucellus or integument squeezed into embryo sac and grew instead of zygot embryo. Second,...

The tactics of fixing hybrids vigor of rice by apomixis are discussed in this article. Three steps of the research are posed. First, the basal demands of apomictic rice are determined. They are unsegregated offspring. Well developed endosperm, dominant nuclear gene controled obligate apomixis. There are three pathways to be obtained unsegregated offspring, i. e.diploidy spory. somatic apospory,somatic embryo derived from nucellus or integument squeezed into embryo sac and grew instead of zygot embryo. Second, it is screened apomictic materials from cultivated rice, wild rice and their distant related species, espicially Poa and Pennisetum etc. with the apomictic character. Third, it is introduced apomictic gene into rice by conventional cross, combination of conventional cross and tissue culture method, and gene transfer technique.

本文对利用无融合生殖固定水稻杂种优势的策略进行了讨论。提出该研究可分三步进行:1.确定无融合生殖水稻的基本要求,即后代不分离,发育良好的胚乳,显性核基因控制的专性无融合生殖。其中获得不分离的后代有三条途径:二倍体孢子生殖,体细胞无孢子生殖,珠心、珠被等体细胞胚挤入胚囊取代合子胚发育;2.从栽培稻、野生稻及其远缘物种,特别是早熟禾属、狼尾草属等具无融合生殖特性的材料中挑选无融合生殖材料;3.利用常规杂交、杂交与组织培养结合以及基因转移方法向水稻引入无融合生殖基因。

The mutagenic effect of major economic characters and favourable variation in M_(2)F_3 , and variated characteristics and selective effect in M_(3)F_4 were studied with early indica rice F_1seeds irradiated by~(137)Cs-γ rays for 4 single and 2 multiple cross combinations. Conventional cross breeding procedures were conducted as being the control with same cross combinations. The result indicated that the mutation frequencies increased in M_(2)F_3 , and average mutation frequency of major economic...

The mutagenic effect of major economic characters and favourable variation in M_(2)F_3 , and variated characteristics and selective effect in M_(3)F_4 were studied with early indica rice F_1seeds irradiated by~(137)Cs-γ rays for 4 single and 2 multiple cross combinations. Conventional cross breeding procedures were conducted as being the control with same cross combinations. The result indicated that the mutation frequencies increased in M_(2)F_3 , and average mutation frequency of major economic characters in M_(2)F_3 generation of 6 combinations was 6.24% higher than that in F_ 3 generation. The mutation frequencies of multiple cross seeds treated by radiation were higher than that of single cross. The variation range of plant height, number of grain per panicle and 1000-grain weight and favourable character variation rate in M_(2)F_3 were found to be higher than that in F_3. The range of character in M_(3)F_4 was more narrow than that in F_4 for single cross and greater than that in F_4 for multiple cross. It shows that the segregation and stability of characters in the progenies of F_1 seeds treated by radiation were related to cross manner and heterozygosity of hybrids.

用~(137)Cs-γ射线辐照籼稻4个单交和2个复交组合的F_1代种子,以常规杂交处理作对照.结合育种实践,研究了M_2F_3代主要经济性状突变频率,有利性状变异率以及M_3F_4代的变异特点和选择效果。结果表明,辐照水稻杂种一代可提高变异率,6个组合M_2F_3主要经济性状突变频率平均比F_3提高6.24%;辐照复交杂种的突变频率大于辐照单交杂种。M_2F_3株高、每穗粒数和千粒重的变幅以及有利性状变异率大于F_3。单交组合M_3F_4性状变异小于F_4,复交组合M_3F_4性状变异大于F_4。表明辐照杂种F_1代性状的分离和稳定与配组方式和杂种的杂合程度有关。M_3F_4优良单株中选率比F_4平均提高0.55%。

Interspecific hybridization,Actinidia deliciosa No.26×A.arguta,was successfully carried out with the conventional cross and the embryo rescue methods.Most of hybrid progenies appear to be the intermediate while a few tend to the maternal.Some female plants of hybrid progenies produce fruit characrized by the size similar to that of the maternal parent,by the greeness and the hairlessness similar to that of paternal,as well as suitable ratio of acid and sugar.The hybrid nature has been confirmed by chromosome...

Interspecific hybridization,Actinidia deliciosa No.26×A.arguta,was successfully carried out with the conventional cross and the embryo rescue methods.Most of hybrid progenies appear to be the intermediate while a few tend to the maternal.Some female plants of hybrid progenies produce fruit characrized by the size similar to that of the maternal parent,by the greeness and the hairlessness similar to that of paternal,as well as suitable ratio of acid and sugar.The hybrid nature has been confirmed by chromosome counting,isoperoxidase analysis and morphological characteristics.These results show that the hybrid is a new germplasm synthesized with interspecific hybridization in Actinidia.

美味猕猴桃26号(ActinidiadeliciosaNo.26)与软枣猕猴桃(Actinidiaarguta)种间杂交,多数杂种F1表现为中间类型偏父本,少数偏母本,由中间类型杂种雌株中选出果大、绿皮、无毛的株系。经染色体鉴定、过氧化物酶同功酶分析和杂种实生苗及其形态特征的观察,确认此种间杂种为猕猴桃属的新种质。

 
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