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98R149 and 98R159 were immune to powdery mildew (Erysiphe graminisDC.f.sp.tritici) inoculation with mix races collected from Hebei Province.

用河北省采集的白粉病混合小种接种鉴定,两个植株均表现免疫。

Erysiphe graminis ; physiological strain ; determination ; RAPD analysis

小麦白粉病菌;生理小种;鉴定; RAPD分析

Soybean cultivar "Ludou 4" was inoculated with the AM fungus Glomus fasciculatus, soybean cyst nematode Heterodera glycines race 4 and the AM fungus plus SCN. A number of coefficients such as mycorrhizal colonization, SCN infection rate, activities of chitinase and PAL and transcripts of the genes Chibl(Chitinase b1) and PAL5 in soybean roots were assayed.

本研究系统分析了大豆(品种:'鲁豆4')接种AM真菌Glomusfasciculatum和胞囊线虫(SCN,Heterodera glycines)4号生理小种后各处理菌根和线虫侵染率、几丁质酶和苯丙氨酸解氨酶活性及几丁质酶基因Chib1和苯丙氨酸解氨酶基因PAL5转录物的动态变化。

Genetic analysis of soybean resistant to soybean nematode race 5. Crop Sci., 1989, 29:1181~1184.[4]Qiu B, Sleper D A et al. Inheritance of resistance to Heterodera glycines races 1,3, and 5 in Peking. Soybean Gen. Newsl., 1996, 23:183~185.[5]Rao-Arelli A P. Allelic loci in Peking soybean controlling resistance to Heterodera glycines races. Soybean Gen. Newsl., 1995, 22:170~172.[6]Rao-Arelli A P. Inheritance of resistance to Heterodera glycines race 3 in soybean accessions. Plant Dis., 1994, 78:898~900.[7]Golden A M, Epps J M, Riggs R G et al. Terminology

随机选取30个F3代的株系,每个株系随机选取10~15个单株,进行上述孢囊线虫的接种鉴定,设抗感亲本作对照。8个株系抗病,18个株系分离和4个株系感病。F3代株系间的抗感分离比例确认兴县灰布支黑豆对大豆孢囊线虫14号小种的抗性是由3对基因控制、一对隐性和两对显性基因、隐性基因上位、两对显性基因互补的遗传假设是正确的。

Libellula and Xiannong 4 had different certain seeding resistances to rust, and Xiannong 4 could converge more races than Libellula.

里勃留拉和咸农4号均具有不同程度的苗期抗病性,咸农4号对小种的聚合作用大于里勃留拉。

Random primers was used to screen main dominance fungus strain of Chiese Melampsora larici-populina Kleb by RAPD technique and the special RAPD fragments of physiological laces of C1, C3, C4 and C5 were founded successfully.

以156条随机引物,对目前中国落叶松杨栅锈菌(Melampsora larici-populina Kleb)的主要优势菌系进行了BAPD片段的筛选,寻找到了1号、3号、4号、5号4个流行生理小种的特异性RAPD标记。

The true blackberry of Europe as well as any of numerous varieties or microspecies having sweet edible black or dark purple berries.

欧洲的正宗黑莓就像许多变体或其它小种属一样,具有甜的可食的黑色或深紫色浆果。

The study clarified the molecular genetic relations of major races and epidemic strains of Puccinia striiformis f.

明确近年来我国小麦条锈菌主要小种及流行菌系的分子遗传关系。

Diverse differential hosts and the corresponding nomenclature of Puccinia triticina races have been used by different countries in the world because of the diversity of geographic and ecological characteristics,pathogen population structures,and research history.

由于地理生态条件、叶锈菌群体结构、研究历史和研究方法等的差异,不同国家和地区采用相应的小麦叶锈菌鉴别寄主和小种命名方法。

Ug99,found in Uganda in 1999,is a new virulent race of Puccinia graminis f.sp.tritici on Sr31,the backbone of stem rust resistance worldwide.

Ug99是1999年在乌干达首次发现的对最重要小麦抗秆锈病基因Sr31有强毒力的秆锈菌新小种

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