Screening of cotton germplasm for resistance to Verticillium dahlia Kleb. under greenhouse and field conditions

Screening of cotton germplasm for resistance to Verticillium dahlia Kleb. under greenhouse and field conditions

Currently, the most effective and economically feasible means of controlling Verticillium wilt is to grow wilt-resistant cultivars. Nevertheless, resistant germplasm lines that are able to overcome this detrimental disease remain rare. Hence, we aimed to identify high-quality germplasm lines that ex...

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Bibliographic Details
Published in:European journal of plant pathology Vol. 137; no. 2; pp. 259 - 272
Main Authors: Khaskheli, M. Ibrahim, Sun, J. Ling, He, S. Pu, Du, X. Ming
Format: Journal Article
Language:English
Published: Dordrecht Springer-Verlag 01-10-2013
Springer Netherlands
Springer Nature B.V
Subjects:
Adaptability
Agriculture
Biomedical and Life Sciences
Cotton
crop production
Cultivars
Dahlia
Disease resistance
Ecology
germplasm
Greenhouse effect
Greenhouses
Life Sciences
Plant Pathology
Plant Sciences
Resistance to control
screening
Verticillium
Verticillium wilt
wilting
Resistance
wilt
Cotton germplasm
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Summary:Currently, the most effective and economically feasible means of controlling Verticillium wilt is to grow wilt-resistant cultivars. Nevertheless, resistant germplasm lines that are able to overcome this detrimental disease remain rare. Hence, we aimed to identify high-quality germplasm lines that exhibit high resistance, to address the dearth in optimum production. Our field and greenhouse studies showed significant variation among all tested germplasm lines with respect to wilt-assessment parameters. Highly resistant or resistant germplasm included 1421Bt-4133, O Siv2, Arcot-1, and GP93; Zhong 21371 and Yumian 2067 were moderately responsive; and Arcot402bne, Arcot438, Xinluzao-3, and Jimian11 were highly susceptible to wilt. Overall, germplasm line 1421Bt-4133 appeared to be an ideal material with strong resistance potential against V. dahliae. The germplasm lines O Siv2, Arcot-1, GP93, Zhong 21371, and Yumian 2067 showed variability in resistance potential in artificially or naturally-infested soil. This variability may be due to the genetic potential of the plants and to the adaptability of V. dahliae. We determined that the 1421Bt-4133 germplasm line was ideal, as it demonstrated resistance diversity against V. dahliae in all observed wilt-assessment parameters. The results of this study contribute to the understanding of viable germplasm lines for improving cotton production. The resistant germplasm lines uncovered in this study may provide new disease resistance sources in the breeding program.
Bibliography:http://dx.doi.org/10.1007/s10658-013-0235-2
ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0929-1873
1573-8469
DOI:10.1007/s10658-013-0235-2