Wilkinson, C.A. and Murphy , J.P. and Rufty, R.C. (1990) Diallel analysis of components of partial resistance to Septoria nodorum in wheat. Plant Disease, 74 (1). pp. 47-50.
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Abstract
A 5-parent full diallel and a 9-parent half diallel including adapted and exotic wheats of both winter and spring types were evaluated in the greenhouse for components of partial resistance to S. [Leptosphaeria] nodorum. F1 seedlings and parents were inoculated with a mixture of isolates of L. nodorum and evaluated for inheritance of incubation period and infection frequency. Significant general combining ability effects were found for incubation period and infection frequency. Significant specific combining ability effects were found for incubation period, but were observed in only 40% of the hybrid combinations in the full diallel and 16% of the hybrid combinations in the half diallel. Additive gene effects were most important in the inheritance of both components. Reciprocal and maternal effects were non-significant for both components of partial resistance measured by increasing incubation period and decreasing infection frequency. Another partially resistant parent (PAT 72-180) contributed to resistance through an increased incubation period only
| Item Type: | Article |
|---|---|
| Additional Information: | SNNigam Collection |
| Author Affiliation: | Department of Crop Science, North Carolina State University, Raleigh, NC 27695, USA |
| Subjects: | Plant Protection Statistics and Experimentation |
| Divisions: | Other Crops |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 08 Sep 2013 13:08 |
| Last Modified: | 08 Sep 2013 13:08 |
| Official URL: | http://dx.doi.org/10.1094/PD-74-0047 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/11650 |
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