Jessica Dotray, Jennifer Chagoya, T. Wheeler, Cecilia Monclova-Santana
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引用次数: 0
Abstract
Fusarium oxysporum f. sp. vasinfectum race 1 and 2 (FOV) and Meloidogyne incognita (southern root-knot nematode, RKN) complex can cause severe losses in cotton and management recommendations include using varieties that are resistant to RKN. The objective of this project was to test the response of different varieties to the Fusarium wilt complex with and without RKN resistance. Four greenhouse trials were conducted, where cultivars infested with RKN and FOV were evaluated on 1) leaf wilt symptoms rated every 3-4 days to calculate area under disease progress curve and 2) visual ratings of root and stem necrosis at the end of each trial. RKN resistant cultivars ‘PHY 480 W3FE’ and ‘DP 1747NR B2XF’ statistically had similar AUDPC, root necrosis, and stem necrosis as RKN susceptible cultivars ‘DP 1522 B2XF’ and ‘DP 1646 B2XF’ in all trials. This demonstrated that RKN resistance does not correlate to FOV resistance and RKN resistance alone is not sufficient to manage Fusarium wilt. Cultivar ‘ST 4946GLB2’, which carries both RKN and FOV resistance, statistically had the lowest AUDPC, root necrosis, and stem necrosis in all greenhouse trials.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.