dc.contributor.author | Nderitu, John | |
dc.contributor.author | Ariga, Emmanuel | |
dc.contributor.author | Kanampiu, Fred | |
dc.contributor.author | Mugo, Stephen | |
dc.contributor.author | Kiarie, Njoroge | |
dc.contributor.author | Karaya, Haron | |
dc.date.accessioned | 2013-03-18T10:54:29Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | J. Crop Prot. (2012) Vol. 1 (2) | en |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/14455 | |
dc.description.abstract | Striga hermonthica is a noxious, obligate hemi-parasite of cereal
grasses that causes severe grain yield loss in susceptible maize cultivars in
Africa. The development of host plant resistance is one of the most
practical Stiga control strategies. In this study experiments on 36 maize
inbred lines were conducted in pots and in field during the two rainy
seasons of 2009 at Kibos and Alupe stations in Kenya. This study was
carried out in order to determine the variation in Striga emergence, and the
correlation between the attachments of the parasite to the roots. Significant
differences (P < 0.001) were detected among the inbred lines for grain
yield under Striga-free environment. The Striga damage rating (SDR) was
significant (P < 0.05) among the inbred lines. A highly significant and
negative correlation coefficient was observed between grain yield and
Striga damage rating (r = - 0.67). Positive correlation coefficients were
observed between grain yield and ear aspect (r = 0.46) and plant aspect (r =
0.75), respectively. For the experiment in pots, highly significant
differences (P < 0.01) were observed among the inbred lines for Striga
resistance traits. Striga attachments were found to be correlated with the
number of emerged Striga plants. A significant correlation was found
between Striga attachments and Striga counts in pots at the 10th week after
planting (WAP) (r = 0.25) and the 14th WAP (r = 0.31). Inbred lines JI-3019
and OSU231//56/44-6-4-17-3 were identified as the most resistant lines
as they consistently performed well in both Striga-free and Striga-infested
environments. These inbred lines could be used for breeding Strigaresistant
maize varieties. | en |
dc.language.iso | en | en |
dc.subject | maize inbred lines, resistance, Striga hermonthica, Kenya | en |
dc.title | Identification of new maize inbred lines with resistance to Striga hermonthica (Del.) Benth. | en |
dc.type | Article | en |
local.publisher | International Maize and Wheat Improvement Center (CIMMYT) | en |
local.publisher | University of Nairobi, Faculty of Agriculture, Upper Kabete Campus, | en |