dc.contributor.author |
Ouma, Evans; Ligeyo, Dickson; Matonyei, Thomas; Were, Beatrice; Agalo, Joyce; Too, Emily; Onkware, Augustino; Gudu, Samuel; Kisinyo, Peter; Okalebo, John; Othieno, Caleb |
|
dc.date.accessioned |
2019-01-17T07:50:10Z |
|
dc.date.available |
2019-01-17T07:50:10Z |
|
dc.date.issued |
2012-11 |
|
dc.identifier.uri |
https://www.researchgate.net/profile/Evans_Ouma2/publication/304525855_Development_of_maize_single_cross_hybrids_for_tolerance_to_low_phosphorus/links/5772466f08aeef01a0b62666.pdf |
|
dc.identifier.uri |
http://ir.mu.ac.ke:8080/xmlui/handle/123456789/2465 |
|
dc.description.abstract |
Low available phosphorus (P) is one of the major hindrances to maize (
Zea maysL.) productivity in acid soils. The objectives of this study were to: (
1) develop P-efficient maize inbred lines, (2) develop single cross hybrids from the P-efficient inbredlines, and (3) determine their response to P application in the P-deficient acid soils of western Kenya. Ninety-eight inbred lines and 4
9single crosses were developed and screened at P-deficient (2.0to2.2 mg P/
kg soil) soils of Sega and Bumala. Mean grain yield (GY) for the hybrids was 75.3% higher with P-fertilizer than without P for the same hybrids. Thirty-
three percent(33%) of these hybrids were inefficient but responsive to P application, 27% were efficient and none responsive, only 13% were efficient and responsive, while the rest were inefficient and non-responsive.
GY was positively correlated (r = 0.57**) with plant height (PH) and ear height(EH)(r =0.60**) and PH was correlated with EH(r =0.86***). This study has developed and identified P-efficient maize germplasm that can be utilized directly or in developing other hybrids for use in acid soils of western Kenya and in other acid soils where P is limiting |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
AJPS |
en_US |
dc.relation.ispartofseries |
Vol. 6(14), pp. 3 94 - 402; |
|
dc.subject |
Phosphorus |
en_US |
dc.subject |
Interaction |
en_US |
dc.subject |
Efficiency |
en_US |
dc.subject |
Acid soils |
en_US |
dc.title |
Development of maize single cross hybrids for tolerance to low phosphorus |
en_US |
dc.type |
Article |
en_US |