小麦

The barley chromosome in wheat was identified by genomic in situ hybridization in which biotin labelled total genomic DNA of barley betzes was used as probe and the unlabelled total DNA of common wheat Chinese Spring as blocking DNA. A series of wheat materials were tested as follows; two disomic alien substitution and monosomic alien addition lines, 2n=43; two monosomic alien substitution lines.

用生物素(Biotin-16-dUTP)标记的大麦Betzes基因组DNA作探针，以普通小麦中国春总DNA作封阻进行基因组原位杂交(Genome in situ hybridiz ation，简称GISH)，从13株小麦-大麦杂交后代中鉴定出2个含有3条大麦B etzes2H染色体的材料(2n=43)；2个2H单体异代换系(2n=42)；7个2H二体异代换系(2n=42)。

By phenotype observation, combined with root tipchromosome counting, PMC MI pairing analysis and chromosome C-banding, a ditelosomic addition line 94K227 and a disomic addition line 94K280 was identified among BC2F2 and BC2F3 population respectively.C-banding results showed that 94K227 contains 1 pair of long arms in chromosome B, and 94K280 contains 1 pair of chromosome D from R.

用普通小麦-纤毛鹅观草双倍体与普通小麦中国春连续回交两次，然后连续自交，通过形态观察、根尖细胞染色体计数、花粉母细胞减数分裂中期Ⅰ染色体配对分析及染色体C－分带，在BC2F3和BC2F3群体中，分别筛选到一个端二体异附加系94K227和一个二体异附加系94K280，其中C-分带显示94K227添加的是纤毛鹅观草染色体B的一对长臂， 94K280添加的是纤毛鹅观草的一对染色体D。

Alfalfa-wheat rotation could improve nutritional quality of wheat,and could also increase paste strength and flexibility and decrease paste ductibility.

粮草轮作有利于提高粮食作物的产量和品质，但有关粮草轮作系统中，苜蓿—小麦轮作对小麦品质和子粒氨基酸含量

After 2000, the genetic diversity index of the regional trials No.2 has a little bit elevatory but still kept in unremarkable level.

从总体来看，山东省不同年代选育的小麦品种的遗传多样性差异较小，也没有因为育种而导致当地小麦品种的遗传多样性下降。

Powdery mildew is a serious disease of wheat in China, which is caused by the fungus Erysiphe graminis DC.

由白粉菌Erysiphe graminis DC引起的小麦白粉病是我国小麦生产中的严重病害。

In order to understand the validity of the resistant genes to wheat powdery mildew in Shanxi province, in greenhouse condition, cleistothecia released ascospores were used to infect wheat seedling. The frequencies of virulence genes for 166 isolates of Erysiphe graminis f. sp. tritici from different ecological areas of Shanxi province were tested.

为明确小麦白粉病抗性基因在山西省的有效性，在温室条件下，通过闭囊壳释放子囊孢子侵染麦苗发病，利用28个已知抗病基因品种对分离自山西省不同生态区的166个小麦白粉病菌株进行了毒性基因频率测定。

Dicoccoides were tested for seedling powdery mildew resistance and crossed with common wheat susceptible line 87-1 to obtain F1 seeds. The reactions to Erysiphe. graminis f.

对40份野生二粒小麦材料进行了抗白粉病鉴定，并与感病普通小麦87-1进行杂交，获得了F_1种子。

A field experiment to study the wheat / faba bean intercropping conditions, four kinds of nitrogen application on wheat biomass and grain yield.

通过田间小区试验，研究了小麦/蚕豆间作条件下4种施氮水平对小麦地上部生物量和籽粒产量的影响。

Introducing into to wheat the gna gene that encodingsnowdrop lectin(Galanthus nivalis agglutinin;GNA),a toxic protein to Homoptera,or cryIA gene that encoding Bacillus thuringiensis insecticidal protein forLepidopteraby genetic transformation will produce new germplasm that maybe produce resistant to somekinds of pests.

利用转基因技术，将对同翅目昆虫具有抗性的雪花莲凝集素基因gna和对鳞翅目昆虫具有抗性的苏云金芽孢杆菌杀虫蛋白基因cryIA导入小麦，极有可能获得对某些害虫具有一定抗性的小麦新种质。

In period of nourishment growth, Ammonia volatilization losses velocityis very small and there is no evidently difference between winter wheat and alfalfa. But inprocreation growth period, it increased geminately.

在营(来源：AeeBC71论文网www.abclunwen.com)养生长期，小麦与苜蓿地上部分的氨挥发损失速率较低且没有明显差异，但进入生殖生长期成倍增加，苜蓿的氨挥发损失高于小麦 65%左右。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。