Wilson, J P and Hess, D E and Hanna, W W (2001) Evaluation of Striga resistance in the secondary and tertiary gene pools of pearl millet. International Sorghum and Millets Newsletter, 42. pp. 87-89. ISSN 1023-487X
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Abstract
Experiments were conducted at Cinzana and Samanko, Mali (1998 and 1999, respectively) and at Sadoré, Niger (in 1999) to evaluate the resistance of the secondary and tertiary gene pools of pearl millet (Pennisetum glaucum) to Striga hermonthica. In the evaluation of the secondary gene pool, S. hermonthica infestation varied across locations. Levels were lowest at Samako in 1999 (an unusually wet year) and greatest in the pot trial at Sadoré in 1999. Coefficients of variation were characteristically high in each experiment, ranging from 75% at Sadore to 191% at Samanko. Although numeric differences in S. hermonthica infestation among entries existed, statistically significant differences were often noted only among the extreme entries. Definitive identification of resistance is not possible from the present data, but parental lines of several hybrids merit further evaluation as sources of resistance. Hybrids involving napiergrass (P. purpureum) tended to have lower overall S. hermonthica infestation across the three evaluations. In the evaluation of the tertiary gene pool, Pennisetum germination was extremely low in 1998 and few plants emerged. No useful data could be obtained from the experiment. In 1999, tertiary gene pool species tended to be poorly adapted to both the Samanko and Sadoré environments. Among the 16 species, only P. pedicellatum accessions were adapted to both locations and might be further evaluated for their response to S. hermonthica infestation.
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Mandate crops > Millets |
| Depositing User: | Library ICRISAT |
| Date Deposited: | 26 Sep 2011 08:52 |
| Last Modified: | 14 Sep 2013 09:19 |
| URI: | http://oar.icrisat.org/id/eprint/1849 |
| Official URL: | |
| Projects: | UNSPECIFIED |
| Funders: | International Agricultural Research Centers, U.S. Department of Energy |
| Acknowledgement: | This research was funded in part by a US AID-sponsored Initiative on Development of Linkages with International Agricultural Research Centers and the U.S. Department of Energy grant DE-FG02-93ER20099 |
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