Study of the Adult-Plant Resistance at Different Growth Stages to Stripe Rust in Wheat

ZHAO Huan-huan; R P Singh; J Huerta-Espino; YANG Zuo-min; SUN Qi-xin

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Study of the Adult-Plant Resistance at Different Growth Stages to Stripe Rust in Wheat

机译：小麦不同生育期成株抗条纹锈病的研究

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Components of resistance were investigated for five adult-plant resistant (APR) wheat (Triticum aestivum) cultivars at six growth stages and two temperatures in the greenhouse, and disease progress in a field trial. Chinese cultivar Chuanyu 12displayed high to intermediate infection type (IT) in the greenhouse but was highly resistant in the field. Weebill showed an intermediate IT in the greenhouse and also in the field. Chpaio, Tukuru and Saar, known to carry combinations of Yr18and 2-3 additional minor genes, were highly resistant in both experiments. Greenhouse experiments indicated that the lower IT of APR cultivars initiated at tillering stage. Latent periods (LP) for APR cultivars were generally longer as the growth stage progressed. We conclude that APR to stripe rust can be best characterized in field trials although significant correlations are seen between field severity and IT and LP measured in the greenhouse.

机译：在温室的六个生长阶段和两个温度下，对五个成年抗性（APR）小麦（Triticum aestivum）品种的抗性成分进行了研究，并在田间试验中研究了疾病进展。中国品种川豫12在温室中表现出高到中度感染类型（IT），但在田间具有高抗性。 Weebill在温室和野外均显示出中等水平的IT。 Chpaio，Tukuru和Saar，已知携带Yr18和2-3个其他次要基因的组合，在两个实验中均具有高度抗性。温室试验表明，APR品种的IT较低是在分er期开始的。随着生长阶段的进展，APR品种的潜伏期（LP）通常会更长。我们得出结论，尽管在田间严重程度与温室中测得的IT和LP之间存在显着相关性，但在田间试验中可以最好地表征APR消除条锈病。

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《农业科学学报（英文版）》 |2005年第7期|528-532|共5页
作者
ZHAO Huan-huan; R P Singh; J Huerta-Espino; YANG Zuo-min; SUN Qi-xin;
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作者单位

College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, P.R. China;

International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600 Mexico D.F., Mexico;

Campo Experimental Valle de Mexico INIFAP, Apdo. Postal 10, 56230, Chapingo, Edo de Mexico, México;

College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, P.R. China;

College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, P.R. China;

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正文语种 chi
中图分类园艺;
关键词
Wheat; Puccinia striiformis; Adult-plant resistance;

机译：小麦;条锈菌;成株抗性;

Study of the Adult-Plant Resistance at Different Growth Stages to Stripe Rust in Wheat

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