Normal view MARC view ISBD view

Inheritance of resistance to greenbug (Schizaphis graminum) and bird cherry-oat aphid (Rhopalosiphum padi) in wheat crosses [electronic resource].

By:

Al-Naggar, A. M. M

Contributor(s):

Language: engbara Description: P.175-191Other title:

وراثة المقاومة لحشرتى المن الأخضر ومن الشوفان فى هجن القمح [Added title page title]

Uniform titles:

Egyptian journal of plant breeding, 2006 v. 10 (1) [electronic resource].

Subject(s):

Online resources:

Full Text Article.

In: Egyptian Journal of Plant Breeding 2006.v.10(1)Summary: Diallet crosses ( except reciprocals were made in 2001/2002 season between 8 parents of wheat ( triticum aestivum ) that varied in resistance to aphids . in 2002/2003 season parents and F 1 s were evaluated for resistance to bird cherry – oat aphid ( BCOA ) and greenbug ( GB) under field and greenhouse conditions . The main objective was to study type of gene action, combining ability and probable number of genes controlling resistance to these aphids. Results of artificial infestation indicated that general (GCA) was more important than specific (SCA) combining ability variances in determining the plant reaction against both aphid species. The best general combines were Bush and Gz-170 for resistance to BCOA and Gem-9 and Sd-1 for resistance to GB. The best F1 crosses in SCA effects were identified. Overdominance was controlling resistance to both aphids. Heritability in narrow sense was 41.0 and 22.4% for resistance to BCOA and GB, respectively. Results indicated that one gene (one group of genes) controlled the inheritance of wheat resistance to each of the studied aphids.

Average rating: 0.0 (0 votes)

No physical items for this record

Includes references.

Diallet crosses ( except reciprocals were made in 2001/2002 season between 8 parents of wheat ( triticum aestivum ) that varied in resistance to aphids . in 2002/2003 season parents and F 1 s were evaluated for resistance to bird cherry – oat aphid ( BCOA ) and greenbug ( GB) under field and greenhouse conditions . The main objective was to study type of gene action, combining ability and probable number of genes controlling resistance to these aphids. Results of artificial infestation indicated that general (GCA) was more important than specific (SCA) combining ability variances in determining the plant reaction against both aphid species. The best general combines were Bush and Gz-170 for resistance to BCOA and Gem-9 and Sd-1 for resistance to GB. The best F1 crosses in SCA effects were identified. Overdominance was controlling resistance to both aphids. Heritability in narrow sense was 41.0 and 22.4% for resistance to BCOA and GB, respectively. Results indicated that one gene (one group of genes) controlled the inheritance of wheat resistance to each of the studied aphids.

Summary in Arabic.

There are no comments on this title.

to post a comment.