小种

Reaction of 24 Einkorn accessions to mixed inoculum of powdery mildew and stripe rust,and two T.urartu accessions UR204,UR206 and a T.monococcum accession MO205 were used for reaction to a set of 15 differential Blumeria graminis tritici isolates and 21 differential Puccinia striiformis isolates,respectively.Among them,UR206 was resistant to all 15 isolates,UR204 was resistant to 14 isolates except E11,and MO205 showed different resistant types.The results indicated that most likely UR206 and UR204 carried new powdery mildew resistance genes that were different from 18 known Pm genes and MO205 carried new stripe rust gene that were different from 24 known Yr genes.

本研究对24份一粒小麦分别进行了白粉病和条锈病混合菌种苗期接种鉴定，进一步分别用一套白粉病菌菌株(15个)对2份乌拉尔图小麦和条锈病菌小种(21个)对1份栽培一粒小麦进行接种鉴定，其中乌拉尔图小麦UR206能抵抗所有供试白粉菌菌株，UR204除对白粉菌菌株E11感病外，对其余菌株表现抗性；栽培一粒小麦MO205对不同条锈菌小种表现出不同的抗性反应，研究表明乌拉尔图小麦UR206、UR204和栽培一粒小麦MO205分别含有与已知抗白粉病和抗条锈病基因不同的新基因。

A set of spelt monosomic lines as female parent were respectively crossed with wheat new variety SM96 and new line SM20005 to determine the chromosomal location of the gene conferring resistance to powdery mildew in both. Seeding of parents, F〓 and F〓 from monosomic F〓 were inoculated with race no. 15 of Blumeria graminis f. sp. tritici. Analysis of obtained data revealed that one major dominant resistant gene originating from wild Emmer in the variety SM96 and the line SM20005 was located on chromosome 4A.

为确定小麦新品种沈免96和新品系沈免20005含有的抗白粉病基因所在染色体，以一套斯卑尔脱单体系为母本分别与沈免96和沈免20005杂交，将亲本、F〓、单体F〓植株的F〓代群体在苗期用小麦白粉菌15号小种的单孢菌系接种鉴定，单体分析结果表明，沈免96及沈免20005所含源于野生二粒小麦的抗小麦白粉菌15号小种的1个显性主效基因位于4A染色体上。

A new physiological race of leaf mould Fulvia fulva ( Cooke Ciferri 1.2.3.4.9 was detected by continuous investigating and sampling from tomato production in Beijing area for several years.

通过对北京地区番茄叶霉病菌生理小种分化的连续监测，发现了可侵染目前生产上主栽抗叶霉病品种的新小种。

Small kinds of cloth are artificial market has been eliminated, only Lapsang Souchong hundred years is not bad.

现人工小种布场已被淘汰，唯正山小种百年不衰。

Souchong thick black bar, dry pine smoked burning, into a tea with special pine smoke aroma, Fujian Lapsang Souchong best.

小种红茶条形粗大、干燥时以松木熏燃，成茶带有特殊的松烟香气，福建的正山小种最佳。

Four representative samples of corn southern leaf blight were collected from main sweet corn area in Guangdong province. According to these samples,a race identification of isolated Bipolaria maydis strains was made based on surface morphology of spore through scanning electron microscope and race biological characteristics.

摘 要：从广东省甜玉米主产区采集了4个有代表性的小斑病标样，分离提纯病原菌，通过扫描电子显微镜观察玉米小斑病菌的孢子，并结合病菌生物学特性，对分离出的4个甜玉米小斑病菌株进行了生理小种的鉴定。

It is a new approach for identification of physiological races of Cladosporium fulvum in tomato production.

这些RAPD标记可用于番茄叶霉病菌生理小种鉴别，为有效地开展番茄叶霉病菌生理小种分化研究提供了一个新方法。

The physiological strains of Erysiphe graminis were determined in 1999～2000 and the changes of strain groups were analyzed.

对1999～2000年小麦白粉病菌的生理小种进行了鉴定，并分析了小种种群的变化。

This result fitted with the selection standards of the optimum mutagenic dose of the microbe chemical mutagenesis.Different...

不同毒性的小麦条锈菌生理小种对EMS的敏感性不同，且在离体培养条件下，毒性较弱小种的生活能力及抗逆能力明显强于毒性较强的小种。

Ug99 could be called a superior virulent race to widely-used and Sr31-carrying Chinese wheat cultivars or stem rust resistant sources.The number of virulent genes contained in Ug99 was more than the total carried in all Chinese stem rust races.For instance,the virulence of Sr5,Sr9e or Sr11 was the typical races.However,besides the virulence of Sr5,Sr9e and Sr11,Ug99 contains additional virulence of Sr21,Sr31and Sr38,which have never been found in Chinese stem rust races.

Ug99堪称我国的超毒小种，我国最典型的秆锈菌小种只能分别克服或Sr5或Sr9 e或Sr11单基因抗性，而Ug99不仅具有Sr5、Sr9 e、Sr11的联合毒力，而且还具有Sr21、Sr31、Sr38的联合毒力，而我国从未有小种能克服后者的抗性。1B/1L(含Sr31)易位系曾是我国使用的重要秆锈抗源，必对Ug99高度脆弱，我国118份小麦品种在KARI的测定结果表明，高感品种频率98.3%。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失