推广品种

河北省大豆推广品种DNA指纹图谱构建及遗传多样性评价

DNA Fingerprinting and Genetic Diversity Evaluation of Main Current Soybean Cultivars in Hebei

利用系谱分析和SSR标记对河南省小麦主要推广品种间的亲缘关系进行了研究。

Pedigree analysis and simple sequence repeats ( SSR ) were used to analyze the relationship among main released wheat cultivars in Henan Province .

利用主要农艺性状以及SSR和AFLP2种分子标记，对河北省41个大豆推广品种进行遗传多样性分析，以便为种质资源利用和创新提供依据。

The genetic diversity was evaluated in the main soybean cultivars of Hebei province based on SSR , AFLP and agronomic characters for the utilization and innovation of these germplasm resources .

杂交稻恢复系与F1代之间的抗病性为显性遗传关系。利用抗病恢复系CDR22，育成杂交稻推广品种3个。

There was a dominant inheritance between F 1 hybrids and restorers , and 3 high yielding varieties of hybrid rice were bred using the restorer CDR 22 that was resistant to blast .

高品质系与抗病品系配制的杂交组合，F1皮棉产量较现有推广品种增产15%以上，比强度提高20%以上，2.5%跨长和细度提高5%以上。

The increment of F 1 hybrid over popular variety were higher than 15 % , 20 % , 5 % and 5 % for lint yield , fiber strength , span length and fineness .

安徽省主要小麦推广品种品质状况分析

Analysis of Quality of Wheat Cultivars Grown in Anhui Province

喀什地区冬小麦推广品种的可行性研究

Study on the Feasibility of Winter Wheat Varieties Diffused in Kashi Area

根据市场需求，选准推广品种；

Selecting variety for extension according to the market need ;

江西省水稻推广品种米质现状评价及其改良策略

Current Situation and Improvement of Quality of Rice Varieties Popularized in Jiangxi Province

意大利硬粒小麦和面包小麦推广品种对白粉病的抗性

The Resistance of Some Italian Durum and Bread Wheat Cultivars to Powdery Mildew

黑龙江省大豆主要推广品种蛋白质和脂肪含量的分析

Analysis of Protein and Fat of the Releasing Soybean Cultivars in Heilongjiang Province

小麦3个抗白粉病基因聚合于推广品种后代抗性的遗传分析

Genetic Analysis of Disease Resistance for Wheat Descendant Pyramid 3 Resistance-genes in Improved Varieties

我国水稻推广品种的遗传变异性和种质资源的开发利用

The Genetic Variation Among Commercial Rice Varieties and Exploitation of Germplasm Resources in China

重庆市大豆主要推广品种生理生化特性分析

Analysis of the physiological and biochemical properties of the main soybean cultivars in Chongqing Municipality

四个时期新基因型的进入，呈一个双峰曲线，但新的基因型在每个时期都进入了推广品种的核心部分。

The new genotypes during four periods came in the nuclear part as a curve line .

玉米病害发生现状与推广品种抗性对未来病害发展的影响

The status of maize diseases and the possible effect of variety resistance on disease occurrence in the future

自上世纪50年代以来，我国已发生至少7次大面积推广品种丧失抗锈性而被更替。

Since 1950s , resistance possessed in popular cultivars to stripe rust has been overcome for at least seven times .

东北春大豆推广品种蛋白质脂肪含量变化分析

Analyzed on the changes about the contents of protein and oil of the spring soybean cultivars in the north-east of China

在北部冬麦区（Ⅰ），推广品种全为冬性品种，4个春化基因全为隐性。

All cultivars released in Zone ⅰ( Northern Winter Wheat Zone ) were winter and carried recessive alleles at the four vernalization loci .

同时，提出了长江中下游麦区小麦品质改良策略、品质区划以及重点推广品种的意见。

The suggestions for quality improvement , quality region classification and popularization of wheat cultivars in the region are also presented in the paper .

选用5种不同冬春性类型的11个推广品种在省内4个生态类型区分期播种，研究不同类型品种在不同生态区的经济产量和籽粒品质。

The grain yield and grain quality of eleven varieties with different type in four ecological districts were studied under the condition of different sowing stage .

而要充分利用对叶锈病的遗传抗性，则必须首先要了解和掌握主要抗源材料和推广品种中的抗性基因。

Genetic resistance to leaf rust can be most fully utilized by knowledge of the identity of resistance genes in master resistance resources and release cultivars .

以云南生产上推广品种为材料，种植在云南三个不同生态试点和采用两种栽培方式对小麦品种品质性状的变化进行了研究。

The trials were carried out in 3 sites in Yunnan plateau to study the influence of different environments and cultivation practices on the quality traits of wheat varieties .

以美国为代表的玉米育种发达国家的经验表明，对推广品种的回顾性研究可以为进一步开发新品种遗传产量潜力以及提高产量能力提供参考有益的依据和指导。

Experience from America typifying countries with well-developed maize breeding Retrospective analyses of yield gains may provide an understanding of unexploited genetic potential and reveal the strategies for future yield improvement .

育种中对少数具显性单基因抗性的亲木材料的广泛利用，致使推广品种的抗病虫遗传背景狭窄，导致作物病虫害种类发生演变和重要病虫害持续爆发或流行。

The widely use of a few parent materials with dominant and resistant monogene caused narrow on genetic background of commercial varieties and resulted in change and epidemic of disease and pest .

经品比试验，由四倍体花培所获得的部分优良二倍体品系已达到了北京地区推广品种的水平。

Through the experimental comparison of varieties , the characters of part of the good diploid lines derived from tetraploid by anther culture have reached the level of the recommended varieties in Beijing area .

选用来自不同麦区的小麦品种113份，其中包括地方品种26份和目前推广品种87份，以验证与休眠基因紧密连锁的分子标记的效应。

( 6 ) A total of 113 wheat varieties containing 87 wheat cultivars and 26 landraces from different wheat region were analyzed to detect the effects of SSR markers closely linked to dormancy gene .

由于育种过程简单，时间花费少，育种目标明确，利用目前的主要推广品种进行稍加改造就可以快速育成新的所谓自主知识产权品种。

Due to the breeding process is simple , takes less time and breeding targeted , the use of the current main varieties bred little can quickly transform the new so-called independent intellectual property varieties .

对全国十省在不同时期育成的206个大豆推广品种的系谱分析结果表明，系统育种逐步为杂交育种所替代。

206 soybean cultivars developed at various stage in national ten provinces were used for analyzing the formation of their pedigrees . The results showed that pure line breeding method was gradually replaced by hybrid method .

文章从多角度阐述了开展超高产玉米育种的必要性和可行性，并结合广西实际，提出了超高产玉米品种的选育指标，即：比现有推广品种增产20%以上；

The article presents the necessity and the feasibility of breeding super high-yield maize variety in Guangxi , and then proposed the indexes for breeding the variety , which include 20 % higher yield than present cutivars ;