改良品种

It is important to identify the genetic diversity of peanut genetic resources for cultivar development and evaluation of peanut accessions.

花生是我国重要的食用油和蛋白质来源作物，鉴定其DNA分子多态性对品种改良和资源评价具有重要的意义。

Seedling epicotyl segments of 'Xupu' sweet orange(Citrus sinensis L.Osb.)were used as explants to establish Agrobacterium-mediated transformation system with chit42 and phyB genes.

为改良柑桔品种，以普通溆浦甜橙实生苗上胚轴为外植体，建立了农杆菌介导的遗传转化体系，并把chit42基因和phyB基因导入其中。

The results showed, compared with experimental common wheat, Annong Waxy 1 should be improved in plant-height, ear-length, 1000-kernel weight by hybridism and back-cross, while the difference among protein content, ash content, wet gluten contents were not significant, but the waxy wheat grain hardness value was lower.

结果表明，与供试的普通小麦品种相比较，"安农糯1"在株高、穗长和千粒重等农艺性状上均不理想，需要通过杂交和回交等方式进一步改良；蛋白质含量、灰分、湿面筋含量等变化不大。

According to the changjiang River cotton district orientation 50s~60s yarn manufacture base, the research situation and foregroud of high quality cotton was analyzed in Hunan, Moreover, the suggestion was proposed on base of restrict element, the reconstruct of spinning and weaving technological is most pressing matter of the moment, The creating and introducing new and excellent idioplasm and material, The heredity quality improving project, The outstanding fibre quality gene project are the fundamental me...

根据国家将长江中下游棉区定位为50￣60支纱生产基地的区划要求，分析国内外及湖南棉区高品质棉的研究现状及发展前景，并针对限制湖南高品质棉发展的"瓶颈"因素提出了加强纺织技术改造，是当务之急，创造与引进优异新种质新材料、遗传品质改良工程，优异纤维品质的基因工程是根本途径，加速新品种选育是重中之重。

The Limousin breed and its Lim-Flex? hybrid lead the beef industry in muscle-growth efficiency and ideally complement British breeds.

现今，利木赞以及利福杂交牛在瘦肉增长率以及英国牛品种改良方面起着主导作用。

Molecular systematics on germplasm resources of oak silkworm, Antheraea pernyi , including genetic diversity, cultivar taxonomy and microevolution within species, were investigated using Random Ampified Polymorphic DNA, mtDNA sequence analysis and population genetic analysis.

1.1.1 柞蚕的地理分布 20-211.1.2 柞蚕种质资源的收集、改良、保存和利用 21-231.1.3 柞蚕的滞育和化性 231.1.4 柞蚕的体色 23-241.1.5 柞蚕品种资源的系统分类 24-251.1.6 柞蚕杂种优势的利用研究 251.1.7 柞蚕的起源与传播 25-28

A RAPD molecular technology for detection of genetic variation of Oncidium was established through the improvement of DNA extraction methods and selection of random primers and RAPD reaction conditions.

通过对DNA提取方法的改良，随机引物的选择、RAPD反应条件的筛选，建立文心兰品种变异RAPD分子标记检测技术。

To make up for cuttage Miao Sheng grows slow blemish, stock can is in order to open the orangewood of white flower to undertake cutting receiving in 4-6 month, with this Fakejia is born quickly blossom model, be made in miniascape especially and breed is improved go up commonly used this law.

为弥补扦插苗生长慢的缺陷，可以在4-6月以开白花的橙木为砧木进行切接，用此法可加快生长成型，非凡是在盆景制作和品种改良上常用此法。

Special types of male sterility, ideal root structure, higher outcrossing percentage, and GH effect insensitive genotypes are also believed to contribute a great deal to soybean yield improvement in the future.

并结合生产条件的变化和大豆品种资源研究的进展等因素，提出近期和未来对大豆产量改良可能起到重要促进作用的一些性状或侧重的研究方向。

Increases were observed in plant height, panicle length, total grains per panicle and filled grains per

可行的，并且转基因技术在水稻的品种改良方面将发挥越来越大的作用。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。