Chenault , K D and et al, . (2005) Field Reaction to Sclerotinia Blight among Transgenic Peanut Lines Containing Antifungal Genes. Crop Science, 45 (2). pp. 511-515.
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Abstract
Peanut (Arachis hypogaea L.) is susceptible to many diseases. In the southwestern USA and other regions where peanut is grown, diseases caused by fungi are a major threat to profitable production. Transgenic peanut lines possessing fungal resistance genes offer an alternative to traditional resistance and fungicide application in managing fungal diseases. Thirty-two transgenic peanut lines containing antifungal genes (a rice chitinase and/or an alfalfa glucanase) were evaluated for their reaction to Sclerotinia blight caused by Sclerotinia minor Jagger in small field plots (6.1 by 7.6 m) for 3 yr. Peanut lines were arranged in a complete randomized block design with three replications. Disease incidence was recorded throughout the growing season and data were analyzed for statistical significance. Over the 3-yr period, average disease incidence for the most resistant lines—188, Southwest Runner, 416, 540, and 654—was 0.0, 1.0, 10.0, 14.0, and 16.0%, respectively. The cultivar Okrun was most susceptible with an average disease incidence of 58.0%. All other lines had varying degrees of resistance but averaged at least 15.5% less disease than Okrun over the 3-yr period. Transgenic peanut lines with partial resistance to Sclerotinia blight were identified which may be useful in traditional breeding programs for fungal resistance
| Item Type: | Article |
|---|---|
| Author Affiliation: | USDA-ARS Wheat, Peanut, and Other Field Crops Research Unit, Stillwater, OK 74075 |
| Subjects: | Crop Improvement |
| Divisions: | Groundnut |
| Depositing User: | Mr. SanatKumar Behera |
| Date Deposited: | 20 Feb 2012 12:00 |
| Last Modified: | 20 Feb 2012 12:00 |
| Official URL: | http://dx.doi.org/10.2135/cropsci2005.0511 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3059 |
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