Success Stories: Breeding for Wheat Disease Resistance in Kansas

Bockus, W. W.; Appel, J. A.; Bowden, Robert L.; Fritz, Allan K.; Gill, Bikram S.; Martin, Taylor; Sears, R. G.; Seifers, D. L.; Brown‐Guedira, Gina; Eversmeyer, M. G.

doi:10.1094/pdis.2001.85.5.453

Cited by 64 publications

(36 citation statements)

References 13 publications

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“…Wheat streak mosaic virus is one of the most harmful viruses of bread wheat, Triticum aestivum L., in the United States, the Canadian Great Plains, Iran and other major wheat producing regions (Bockus et al, 2001;Masumi et al, 1999). Host plant resistance is a highly desirable control strategy when dealing with WSMV disease.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Some Biochemical Responses in Resistance of Fifteen Bread Wheat (Triticum aestivum L.) Genotypes to Wheat streak mosaic virus

Sahhafi¹,

Bagheri²,

Assad³

et al. 2012

JAS

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Two greenhouse experiments were conducted in 2008-2010 at College of Agriculture, Shiraz University, Iran to evaluate the effectiveness of changes in protein content, peroxidase activity, phenolic compounds, free amino acids content and proline in response to wheat streak mosaic virus (WSMV) infection, in screening resistant bread wheat (Triticum aestivum L.) genotypes. Fifteen wheat genotypes consisting of WSMV tolerant, intermediate and susceptible genotypes were grown in two randomized complete designs with three replications. The experiments only differed with respect to their inoculation (either infected or non-infected). The results indicated that viral infection increased the total protein and peroxidase activity of leaves in tolerant genotypes but viral infection decreased them in susceptible genotypes. Phenolic compounds increased in all infected genotypes but these increases are the highest in tolerant genotypes as compared to intermediate and susceptible ones. Viral infection reduced free amino acids in genotypes in general. The changes in proline content did not show a typical trend in tolerant, intermediate or susceptible genotypes. The analysis of variance indicated that the linear regression of leaf damage rating on the changes in total protein, peroxidase activity and phenols in the leaf was significant but the linear regression of leaf damage rating on the changes in free amino acids and proline in the leaf was not significant. Our results demonstrate the changes in total protein, peroxidase activity and phenolic compounds in a genotype could be used as suitable biochemical markers for assessing the WSMV tolerant wheat plants when grown under infected condition.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Some Biochemical Responses in Resistance of Fifteen Bread Wheat (Triticum aestivum L.) Genotypes to Wheat streak mosaic virus

Sahhafi¹,

Bagheri²,

Assad³

et al. 2012

JAS

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“…Tan spot and spot blotch, like other foliar fungal diseases of wheat, can be managed by various means including resistant cultivars, crop rotation, residue management, forecasting, biocontrol, and fungicide application (Bockus, 1998;Bockus et al, 2001;Bockus and Claassen, 1992;De Wolf and Francl, 1997;Evans et al, 1999;Sharma and Duveiller, 2003). With the widespread use of conservation tillage practices which leave crop residue on the soil surface, presently fungicide application is the most widely used management strategy in Nebraska.…”

Section: Introductionmentioning

confidence: 99%

Effect of growth stage on the relationship between tan spot and spot blotch severity and yield in winter wheat

2009

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“…Generally, forage yield of winter wheat from late November to early March is more consistent and productive than that of the other species (Denman and Arnold, 1970;Watson et al, 1993). Bockus et al (2001) and Watson et al (1993) mentioned that susceptibility of winter wheat to Hessian fly [Mayetiola destructor (Say)], leaf rust (incited by Puccinia triticina), and several virus diseases could be obstacles for successful winter forage production, especially in early planted regions. In addition to its susceptibility to the biotic stresses, wheat is susceptible or less tolerant to abiotic stress such as acidic soils with a pH less than 5.5 and resultant high Al concentration compared to the other small grains (Bona et al, 1995;Kariuki et al, 2007;Zhang and Raun, 2006).…”

mentioning

confidence: 99%

Genetic Diversity of Great Plains Hard Winter Wheat Germplasm for Forage

et al. 2016

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Wheat (Triticum aestivum L.) has been widely grown for winter forage production across the world. However, improvement of forage yield and nutritive characteristics has not been a major goal of wheat breeding programs, and little is known about genetic diversity in the traits of winter wheat germplasm. A set of 299 hard winter wheat germplasm from the Great Plains was evaluated during two growing seasons in Oklahoma and 15 forage‐related traits were evaluated. There were significant (P < 0.0001) genetic variations in all the traits but effects of environment and germplasm × environment interaction were significant for seven and eight traits, respectively. A significant portion of the variation for forage traits was due to genetics, indicating an ability to breed for improved forage traits. Dry matter yield (DMY, kg ha−1) of the germplasm ranged from 1260 for Cheyenne to 4158 for Sturdy2K. Crude protein (CP, g kg−1) ranged from 161 for OK05108 to 268 for Nuplains. When crude protein yield (kg ha−1) was considered, Sturdy2K was the best germplasm, followed by 2180 and OK1068009. State of origin of the germplasm was also a significant source of variation for most of the traits. Heading date was positively and negatively associated with CP and DMY, respectively. This study identified significant genetic variations of the hard winter wheat germplasm for forage traits and the results of this study could provide useful guidelines for winter forage wheat breeding programs.

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Success Stories: Breeding for Wheat Disease Resistance in Kansas

Cited by 64 publications

References 13 publications

Evaluation of Some Biochemical Responses in Resistance of Fifteen Bread Wheat (Triticum aestivum L.) Genotypes to Wheat streak mosaic virus

Evaluation of Some Biochemical Responses in Resistance of Fifteen Bread Wheat (Triticum aestivum L.) Genotypes to Wheat streak mosaic virus

Effect of growth stage on the relationship between tan spot and spot blotch severity and yield in winter wheat

Genetic Diversity of Great Plains Hard Winter Wheat Germplasm for Forage

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