THE EFFECTS OF INCREASING CO2 CONCENTRATION ON FUSARIUM SPECIES AGGRESSIVENESS ABILITY BY MONOCULTURE WHEAT VARIETY | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 19, Issue 6, October 2014, Pages 0-0 | ||
| Authors | ||
| M. W. Khudhair; F. Obanor; S. Chakraborty | ||
| Abstract | ||
| Increasing CO2 concentration in the atmosphere influences on the physiology, morphology and biomass of plants and their interactions with plant pathogens. Fusarium head blight and crown rot are among the most important diseases of cereals causing high yield loss in wheat and barle in many countries and regions including Australia. Over 1390 isolates of four Fusarium species from crown tissues of two wheat varieties were obtained from a Free-Air field CO2. Enrichment (FACE) trial from 2007 and 2008 and from a controlled environment. Five isolates from the dominant Fusarium species of each treatment were selected for the aggressiveness detection. There was a significant increase in the pathogencity of Fusarium species by increasing CO2 level. There was a significant increase in the aggressiveness ability of F. culorum and F. pseudograminearum by increasing CO2 concentration after five cycles of monoculture of wheat variety. | ||
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