查询词典 stripe smut

Positive significant correlation between three infection indexes and SDD, and negative insignificant correlation between infection indexes and LIP were found. Fifteen sugarcane varieties could be divided into 6 groups on the basis of the distance more than 1.0. It resulted most ot tested sugarcane varieties had similar smut resistance. It suggested that smut race 1 and race 2 were included in inocula and the condition for Ustilago scitaminea infection was suitable in the crop season by setting up the standard varieties of NCo310, F134, NCo376 and Ya71-374 for smut identification. In addition, the results of sugarcane varieties resistant to smut race 1 and race2 were known by only a simple field trial.

结果显示：9个引进甘蔗品种中，ROC26属于感病品种，其余属于抗病或高抗品种；3个病情指数和持续发病期的两两相关均为显著正相关，潜伏侵染期与这些参数的相关为负相关，但未达到显著水平；在类间距离大于1.0的条件下，可将15个品种聚为6类，进一步明确了各品种抗黑穗病性的相似程度；抗性鉴定标准对照种NCo310、F134、NCo376和Ya71-374的应用，明确了接种源为小种1和小种2，通过一次接种试验，明确了供试品种对2个小种的抗性水平，标准对照种的抗性表现，还说明了本生长季发病条件基本是适宜的。

Method］ The sweet sorghum variety with anti-smut silk——TR102 and the sweet sorghum variety with the sensitive to head smut——LTR106 being used as experimental material,the SSR technology was preliminarily applied in the analysis of sweet sorghum smut silk gene.

方法］ 以甜高粱抗丝黑穗病品种LTR102、甜高粱感丝黑穗病品种LTR106为试材，应用SSR技术对甜高粱丝黑穗病基因进行分子标记的初步分析。

Genetic analysis were carried out to identify powdery mildew and strip rust resistance genes in the F2 of Am6-4 amphiploid and wheat variety Jinan17. Results showed that resistances to powdery mildew and stripe rust were controlled by a single dominant gene respectively. 124 SSR primers from genome D were used for marker analysis, marker Xgwm98 150(150为下标) from the chromosome 6D was found to be linked to the new powdery mildew resistance gene with a linkage distance 20.42 cM; A special DNA band was amplified by primere xgwm33 in resistant stripe rust plants, resistance gene for stripe rust was localized on chromosome 1D, and the genetic distance between resistance gene and marker is 8.0 cM.

利用Am6-4与济南17F2分离群体进行白粉病和条锈病抗性基因的遗传分析结果证明，Am6-4中的抗白粉病和抗条锈病基因均为单显性基因；以124对D基因组SSR引物进行标记分析，引物Xgwm98在抗白粉病DNA池和单株中能扩增出特异标记带，标记与抗白粉病基因间的遗传距离为20.42cM，并将抗白粉病基因定位于6D染色体；引物Xgwm33能在抗条锈病DNA池和单株中扩增出特异标记带，标记与抗条锈病基因间的遗传距离为8.0cM，并将抗条锈病基因定位于1D染色体。

I have engaged in the research of rice stripe blight control for many years in Shanghai farm and found some problems: though there were some reports of research on rice stripe blight resistance, strategy of prevention and cure for the disease has been face to farmer mainly, while geographical location, cultivars and cultivation system adopted on the Farm all affect the effect of control. On the other hand, our Farm has paid attention to the chemical prevention and cure for rice stripe blight and ignored other measures. As for the chemical prevention and cure, phenomenon of drug-resistance and bad effect of prevention and cure existed usually.

本人在上海农场多年从事该课题研究过程中发现的问题：目前对水稻条纹叶枯病研究的报道较多，在防治对策上主要是针对农户，缺乏关于农场地域因素、品种、栽培制度等因素对水稻条纹叶枯病发生及防治的影响的报道；在水稻条纹叶枯病的防治上，农场仍是以化学防治为主，对其他防治措施还不够重视；在化学防治过程中，存在抗药性、防效不佳等问题。

A laser 3D body scanning system based on light stripe method was presented,which can realize body contour automatic scanning from top to bottom and forming a circinal stripe on body surface with four semiconductor laser linear light sources.Light stripe image is received from eight image CCD cameras located on the two sides of linear light sources.

研制了光带法激光三维人体扫描系统，以4个半导体激光线光源在人体表面形成一个环带，通过位于线光源两侧的8个面阵CCD摄像头接收光带像，在四轴伺服同步扫描系统和计算机网络采集系统的支持下，自上而下地实现了人体外形轮廓的自动扫描。

In this paper genetic research and identification of resistance to head smut in maize and varieties breeding were summarized. There were still many problems should be resolved. Combination of biotechnology and routine breeding may improve the progress of resistance to head smut in maize breeding.

对当前玉米丝黑穂病抗性的遗传研究、抗性鉴定及品种选育等方面做了简要的概述，并分析了其中存在的一些问题，指出分子生物技术与玉米常规育种技术的结合将推动玉米抗丝黑穗病育种取得新的进展，希望对玉米抗丝黑穂病育种有所启示。

Research on the pathogen of sugarcane smut is aid to sugarcane breeding resistant to smut.

引起的一种世界性病害，严重危害甘蔗的生产，对该病病原菌的研究有助于甘蔗抗黑穗病育种。

A smut fungus causing a smut in cereals and other grasses that chiefly affects leaves and stems and is characterized chains of sori within the plant tissue that later rupture releasing black masses of spores.

一种黑穗病菌，引起谷类和其他草类的黑穗病，主要对茎和叶造成影响，表现为植物组织内的一连串的孢子囊群，随后裂开，释放出黑色的孢子块。

A smut fungus of the genus Ustilago causing a smut disease of grains in which the entire head is transformed into a dusty mass of spores.

属于 us类的一种黑穗病菌类，引起谷物的黑穗病，其中整个头被变成了粉末状的孢子块。

With conventional PCR primer pair XBFF/R,the same 352bp bands appeared by amplifying all the DNA samples from the eight races,and no bands appeared by amplifying all the DNA samples from the 9 plant pathogen species(Cucumber powdery mildew,wheat yellow rust,wheat leaf rust,wheat stem rust,wheat scab,wheat sheath blight,wheat loose smut,maize sheath blight and maize head smut)and control.

3用常规PCR和实时荧光PCR两种方法对温室接种的小麦白粉病进行了检测，并在时间上与自然显症的观察进行了比较，结果表明：在温室条件下，小麦白粉病菌在接种后第5d时开始出现小麦白粉病病斑，而利用常规PCR引物XBFF/R可在接种第3d检测到小麦白粉病菌，比自然显症观察能够提前了2d检测到白粉病菌；实时荧光PCR法可在接种后1d即能检测到小麦白粉病菌，比自然显症观察能够提前了4d检测到白粉病菌，这可为白粉菌的预测或预警检测提供依据，更可为白粉病在流行前制定防治决策赢得宝贵时间。4。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。