|Wilson, Jeffrey - Jeff|
Submitted to: Phytopathology
Publication Type: Abstract Only
Publication Acceptance Date: 3/12/2003
Publication Date: 6/1/2003
Citation: Wilson, J.P., Hess, D.E., Hanna, W.W., Kumar, K.A., Gupta, S.C. 2003. Identification of pennisetum glaucum subsp. monodii with striga resistance. Phytopathology 93:S90.
Interpretive Summary: not required
Technical Abstract: Resistance to Striga hermonthica was evaluated in 274 Pennisetum glaucum subsp. monodii entries in four trials in Mali and Niger from 1997 to 1998. Seventy five selected entries were evaluated in three additional trials in Niger and Nigeria in 2000. Mean emerged striga per plant ranged from 0.2 to 14.9 across the seven trials, and from 0.8 to 8.8 for the 75 entries. Nine entries were classified as resistant by least squares means calculated from covariance analysis in which downy mildew incidence, heading date, and days to striga emergence were significant covariates (P<0.01). Regression analysis of entry mean vs. trial mean identified 11 accessions as resistant (intercepts and slopes not different from zero, P>0.05) over all trials. Four entries (PS 202, PS 637, PS 639, and PS 727) were classified as resistant by both methods, and are likely to be sources of stable striga resistance for cultivated pearl millet in West Africa.