Normal view MARC view ISBD view

Results of the South Asia regional Helminthosporium leaf blight and yield experiment, 1993-94

By: Dubin, H.J | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Arun, B [coaut.] | Begum, S.N [coaut.] | Bhatta, M.R [coaut.] | Dhari, R [coaut.] | Duveiller, E.|Dubin, H.J.|Reeves, J.|McNab, A [eds.] | Goel, L.B [coaut.] | Khanna, B.M [coaut.] | Malaker, P.K [coaut.] | Pokhrel, D.R [coaut.] | Rahman, M.M [coaut.] | Saha, N.K [coaut.] | Shaheed, M.A [coaut.] | Sharma, R.C [coaut.] | Singh, A.K [coaut.] | Singh, R.M [coaut.] | Singh, R.V [coaut.] | Vargas, M [coaut.] | Verma, P.C [coaut.] | Joshi, A.K.
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT|UCL|BADC : 1998ISBN: 970-648-001-3.Subject(s): Bipolaris | Blights | Disease resistance | Fungi | Helminthosporium | Plant diseases | South Asia | CIMMYT | Triticum | Yields AGROVOCDDC classification: 633.1194 Summary: Helminthosporium leaf blights, caused by Bipolaris sorokiniana and secondarily by Drechslera tritici-repentis, are important in the eastern part of the Indian subcontinent. This paper presents resistance and yield data for 18 wheat genotypes tested at seven locations in Bangladesh, India, and Nepal under natural infections of B. sorokiniana and D. tritici- repentis. The objective of the experiments was to determine whether the tested genotypes possessed adequate resistance to natural infection by these pathogens and good adaptation to the eastern part of the subcontinent. Superior genotypes had significantly lower AUDPCs (area under disease progress curve), were generally higher yielding than the local check (Sonalika), and headed early to moderately early. The best entries were to be used directly in breeding programs. At least 10 of the genotypes [Bhrikuti (NL623), Kundan, NL644, A6/Glen (BAW 714), K8027, HUW206, Annapurna 1, Fang 60, and NL297] were moderately resistant to resistant to the blights and possessed other required characteristics. It was confirmed that heading was negatively correlated with AUDPC. Covariance analysis or grouping genotypes by heading date, with an internal check in each group, may help reduce this confounding effect.Collection: CIMMYT Publications Collection
Tags from this library: No tags from this library for this title. Log in to add tags.
    average rating: 0.0 (0 votes)
Item type Current location Collection Call number Copy number Status Date due Barcode Item holds
Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 633.1194 DUV (Browse shelf) 1 Available Y624337
Total holds: 0

Helminthosporium leaf blights, caused by Bipolaris sorokiniana and secondarily by Drechslera tritici-repentis, are important in the eastern part of the Indian subcontinent. This paper presents resistance and yield data for 18 wheat genotypes tested at seven locations in Bangladesh, India, and Nepal under natural infections of B. sorokiniana and D. tritici- repentis. The objective of the experiments was to determine whether the tested genotypes possessed adequate resistance to natural infection by these pathogens and good adaptation to the eastern part of the subcontinent. Superior genotypes had significantly lower AUDPCs (area under disease progress curve), were generally higher yielding than the local check (Sonalika), and headed early to moderately early. The best entries were to be used directly in breeding programs. At least 10 of the genotypes [Bhrikuti (NL623), Kundan, NL644, A6/Glen (BAW 714), K8027, HUW206, Annapurna 1, Fang 60, and NL297] were moderately resistant to resistant to the blights and possessed other required characteristics. It was confirmed that heading was negatively correlated with AUDPC. Covariance analysis or grouping genotypes by heading date, with an internal check in each group, may help reduce this confounding effect.

Global Wheat Program

English

9806|AGRIS 9802|anterior|R97-98PROCE|FINAL9798

Jose Juan Caballero

INT2917

CIMMYT Publications Collection

There are no comments for this item.

Log in to your account to post a comment.
baner

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at CIMMYT-Knowledge-Center@cgiar.org

Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org