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The plasmid pDM803, carrying the bar gene, conferring resistance to the herbicide, and the screenable uidA gene, was transferred into wheat by particle bombardment.

在此基础上，将含有bar基因和GUS报告基因的质粒pDM803用基因枪法转化小麦，获得可育的转基因小麦植株，从而建立了适于中国春性小麦基因型的基因枪转化体系。

Then by the tracking investigation of the herbicide resistance of generations crossed or backcrossed with Bar gene transgenic wheat and the wheat hybrid descents heredity performance were studied. The result indicated that: 1 Development of regeneration systemsWheat genotypes and medium are the key factores influencing the development of regeneration systems for immature embryo cultivation.

此外通过回交将抗Basta除草剂的Bar基因转育到这些小麦品种，通过对转Bar基因小麦人工杂交与回交后代除草剂抗性的连续跟踪鉴定，研究了Bar基因在小麦杂种后代的遗传表现。

Based on the fluidized bed theory, a series of thin layer wheat drying experiments were carried out in an electric drying oven with gentle breeze in it to simulate the wheat drying process in fluidized bed.

基于流化床干燥理论，采用热风循环充分的电热烘箱作为干燥器，对小麦进行了一系列的薄层干燥实验研究，模拟小麦流态化干燥过程，总结出适用于流化床小麦干燥时间预测的经验回归公式。

A cluster analysis of two-hundred candidate wheat cultivars from Shaanxi, Gansu, Sichuan and Henan provinces recently was performed by using unweighted pair-group average method,based on the data from their seedling resistance reaction to six dominant isolates of Puccinia striiformis with the different virulence.

为了弄清我国小麦条锈病主要流行区后备小麦品种的抗锈性，选用6个条锈菌优势菌系，对陕，甘，川，豫四省近年来培育的200份后备小麦品种进行苗期和成株期鉴定，并分别对不同省份后备品种的抗条锈性进行聚类分析。

SNP could also enhanceamylase isozyme I activities (Fig.2A), acceler-ate the liquefaction of endosperms (Fig.2C),while have no effect on esterase (Fig.2B).Moreover, SNP could strongly increase thesugars, such as the fructose,...

此外，在无胁迫条件下的小麦种子萌发早期(12h)，SNP处理可以显著诱导葡萄糖、果糖和蔗糖含量的上升；采用外源糖和SNP，结合NO清除剂处理小麦种子，观察到葡萄糖、果糖和蔗糖都参与萌发早期NO信号对小麦种子淀粉酶同工酶I的激活。

Facing to the new national standard of wheat flour to be issued soon,corresponding measures,which should be taken in the respects of product positioning,wheat purchase and storage,wheat and flour blending,wheat processing technology,production of tailored flour s and stability of quality,were presented.

针对小麦粉国家新标准的即将颁布，提出了制粉企业在产品的定位、小麦采购与存放、配麦与配粉、小麦加工工艺、专用粉生产及产品质量控制等方面应采取的应对措施。

In order to verify the efficiency of DONtest-HPLC in breeding wheat with low DON, and to reveal the variation of DON content in wheat,8 cultivars with different resisance to fusarium head blight were used for analysis when fusarium head blight epidemic severely occurred in the middle and lower stretches of Yangtze River in 2003. The results indicated that DONtest-HPLC was a kind of quick and accurate method in detection of DON content with a recovery rate 78.2%in average.

以2003年长江中下游地区赤霉病大流行后收获的8个不同抗、感赤霉病小麦为材料，探讨DONtest-HPLC在低毒素小麦选育中的利用价值，并揭示不同抗性小麦脱氧雪腐镰刀菌烯醇含量的差异特点。

Species in the genus Thinopyrum are important wild relatives for wheat improvement. They possess many desirable traits such as drought, cold and salt tolerance, long spikes and more florets, high protein concentration. It has also been found that some species are the source of resistance genes for rust and powdery mildew, and especially, the source of resistance to wheat streak mosaic virus and barley yellow dwarf virus .

偃麦草属植物是小麦遗传改良中的重要野生近缘种，蕴含抗寒、抗旱、耐盐碱及长穗多花、籽粒蛋白质含量高等优良性状，同时又是小麦锈病和白粉病的重要抗源，特别是在小麦条纹花叶病和大麦黄矮病等病毒病的抗病育种中发挥了重要作用。

Based on the framework of wheat morphology visualization, the 3D geometric modeling technologies of wheat organs were investigated, and the organ geometrical models were developed with characteristic architecture parameters. The model included three submodels: leaf geometry, stem geometry and wheat spike geometry submodels.

本研究以小麦作物为对象，在提出小麦形态可视化技术框架的基础上，首先研究了小麦不同器官的三维几何建模技术，构建了基于器官形态特征参数的几何模型，包括叶、茎秆和麦穗几何模型。

There are two filamentous wheat mosaic viruses transimitted by the plasmodiophoraceous fungus Polymyxa graminis :one is wheat spindle streak mosaic virusfirst reported in Canada and the other is wheat yellow mosaic virus first reported in Japan .

由禾谷多粘菌传播的线状小麦花叶病毒有两种，一种是加拿大首先报道的小麦梭条斑花叶病毒，另一种是日本报道的小麦黄花叶病毒。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。