查询词典 rye 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。

The chromosomal constitution of 200 advanced lines from 1R monosomic addition lines between the wheat cultivar Mianyang11 (MY11) and different rye lines R3, R12, and Baili-rye was studied by the improved C-banding and A-PAGE method. The result showed that 45 lines were identified as 1RS/1BL translocation lines congruously by the two methods. But a line (843-1-1), originated from an 1R addition line of wheat cultivar MY11 and rye line R12, was identified as 1RS/1BL translocation line by C-banding and genomic in situ hybridization,but the secalin block from chromosome arm 1RS of rye was absent in the A-PAGE pattern of its seed proteins.

结果发现，在鉴定的200个株系中，有45个株系经C-带和A-PAGE检测均一致地发现它们含有一对1RS /1BL易位染色体，而一个株系843-1-1，C-带鉴定、原位杂交结果均证明它含有一对1RS/1BL易位染色体，但A-PAGE醇溶蛋白图谱却不具有黑麦1RS染色体臂的黑麦碱特征带，而表达出既不同于黑麦碱又不同于亲本绵阳11的醇溶蛋白带型。

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。

With rye cultivar AR71 as the source of resistance to wheat sharp eyespot,we tried to transfer the rye resistant genes into eight wheat cultivars or lines by pollen tube pathwaymethod and intergeneric crossing between wheat and rye.

以抗小麦纹枯病的黑麦AR71为抗源供体，以鲁麦1号、有蜡、百农3217、圆锥小麦TG29等8个小麦品种为受体，试图通过花粉管通道法和属间杂交的方法，导入供体的抗纹枯病基因。

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 results showed that 9 pathogen collections of Sporisorium reilianum were divided into 3 pathogenic types in which there were type A with high pathogenicity, type B with moderate pathogenicity and C with weak pathogenicity. Type A were originated in most important corn-grown areas including Changchun ,Jilin,Gongzuling and Changling where corn head smut usually occurs severely, type B were collected from Siping,Tonghua ,Songyuan,Yanbian, and type C were collected from Baicheng where corn head smut usually occurs very lightly.

致病类型A为强致病类型，来源于吉林、长春、公主岭和长岭，是玉米丝黑穗病发生最严重的地区；致病类型C为弱致病类型，分布于白城地区；致病类型B其致病性介于A、C类之间，主要分布于四平、通化、松原和延边地区。

The antiquarian refers the vase to the second century.

古董收藏家认为这花瓶是公元2世纪的文物。

Meanwhile,it also products more and better products foe the customers bothe at home and abroad.

同时也为国内外客户的不同需求提供更多更好的产品。