杂种的

The F2 (498) bred by 548 Yunnan rice core idioplasm and the Yunnan rice landrice Diantun502, hexi35 as materials was studied on genetic parameters and correlation analysis of main morphological characters of the hybrids F2 in Kunming entironment.

以548份云南稻核心种质和云南主栽籼稻品种滇屯502、粳稻品种合系35配制的杂种F2（498份）为材料，在昆明地区生态条件下，对杂种F2世代的主要形态性状的遗传参数和相关性进行分析。

Thus most individuals in an outbreeding population could be called hybrids, and geneticists apply the term to the F1generation resulting from a monohybrid cross, where the offspring differ in the alleles of a single gene.

大多数异系交配的个体可以被称为杂种，遗传学上常将进行单因子杂交得到的 F1代称为杂种，它们在一个位点上具有不同的等位基因。

In order to investigate whether fragments of Sugarcane bacilliform virus were integrated into Saccharum inter-specific hybrids genome, a DNA fragment homologous to SCBV was amplified from a hybrid sugarcane plant Saccharum inter-specific hybrids var.

为研究甘蔗杆状病毒Sugarcane bacilliform virus的基因组片段是否整合进杂种甘蔗Saccharum inter-specific hybrids基因组，以采自广西甘蔗研究所的1株杂种甘蔗植株叶片总DNA为模板，根据已报道的甘蔗杆状病毒基因组序列设计多条特异引物。

The principles of several DNA Molecular markers and their application on assessment of germplasm genetic diversity,fingerprinting construction,classification of heterotic groups and heterosis prediction for maize were reviewed.The present problems and prospective of molecular markers application in germplasm resource we...

介绍几种DNA分子标记的原理，综述了DNA分子标记在玉米种质遗传多样性鉴定、绘制指纹图谱、杂种优势类群划分和杂种优势预测等方面的应用，并探讨了在玉米种质研究中存在的问题和应用前景。

Chromosome observation of the male sterile line and fertile line, parents of hybrid combination and F1 indicated that the chromosome number of the male sterile line is the same as that of fertile line 2n=2x=24; Pollen parent (Tagetes putula PHBO029) is tetraploid 2n=4x=48; the F1 is triploid 2n=3x=36 with hybrid vigor.

通过对不育系、正常可育系以及杂交组合父母本、子一代的染色体数目观察发现：万寿菊雄性不育系的染色体数目与正常可育系相同，均为2n=2x=24；孔雀草PHBO029为四倍体2n=4x=48，它与万寿菊不育系杂交、其杂种为具有杂种优势的三倍体2n=3x=36。

The results showed that the best ratio of male parent to female parent was 1:3, and 210 kg/hm2 N fertilization was better. It indicated that hybrid seeds production in two crop seasons, especially the second crop season based on the utilization of ratoons of flue-cured tobacco which regenerated after hybrid seed was harvested in the first crop season, was beneficial to higher seed yield, lower cost, and less laborers employed as well.

结果表明，烟草杂交制种父母本比例以1：3较好；在中等肥力田块制种头季以施纯氮195~210kg/hm2较理想；利用头季杂交种收获后萌生的腋芽进行杂种二季制种在提高杂种种子产量，降低劳动量和生产成本等方面具有较理想的效果。

The results were as follows:The protein,wet gluten content and sedimentation of all hybrid seeds with 4 alien cytoplasms were superior to those with T.aestivum cytoplasm.The differences of wet gluten content and sedimentation of hybrid seeds with Ae.kotschyi and Ae.variabilis cytoplasms,at 5 percent significant difference,were especially obvious.

结果表明，由它们所配制的杂种小麦在蛋白质含量、湿面筋含量、沉淀值等性状上均高于具有普通小麦细胞质的相同核型杂种小麦，尤其粘、易型某些组合在湿面筋含量、沉淀值两性状上差异达到显著水平。

Within China at least five recognizable hybrids are occasionally found of which three have been given hybrid epithets.

在中国内至少5 可认识的杂种偶有被发现，3 已经被给杂种表示性质的形容词。

I remember in college there was a historian named Tian Changwu who gave a lecture, saying The Chinese man is a big mutt, and the other peoples are small mutts. None of them are pure.

记得上大学的时候，有一位历史学家田昌五给我们上课时说：中华民族是一个大杂种，那么各个民族都是小杂种，没有纯的。

The Kiangsu Affiliated Academy of the Chinese,Academy of Agricultural SciencesHybrid vigour in cotton has been reported by a number of workers.

1959—1962年试验证明，海陆杂种一代具有早熟、丰产、优质的特性。海陆杂种一代的籽棉产量接近陆地棉，而显著高于海岛棉。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。