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Journal Article 2011-04

Autor: Badu-Apraku, B. Akinwale, R.O. Ajala, S.O. Menkir, A. Fakorede, M.A.B. Oyekunle, M.

Secondary traits can improve precision with which drought or low soil nitrogen (low-N) tolerant maize (Zea mays L.) genotypes are identified, compared to measuring only grain yield under each stress. The objective of this study was to identify secondary traits for indirect selection for yield imp...

Enlace original: https://cgspace.cgiar.org/handle/10568/88147

Investigación en Agricultura
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Badu-Apraku, B. ,  Akinwale, R.O. ,  Ajala, S.O. ,  Menkir, A. ,  Fakorede, M.A.B. ,  Oyekunle, M. ,  [Relationships among traits of tropical early maize cultivars in contrasting environments] ,  Relationships among traits of tropical early maize cultivars in contrasting environments
Journal Article 2004-10

Autor: Kamara, A.Y. Menkir, A. Fakorede, M.A.B. Ajala, S.O. Badu-Apraku, B. Kureh, I.

Maize improvement at the International Institute of Tropical Agriculture (IITA), which began in the 1970s, built on the germplasm and experience of earlier years. The main breeding emphasis was to develop maize cultivars and hybrids with high yield potential and durable resistance to diseases and...

Enlace original: https://cgspace.cgiar.org/handle/10568/96423

Investigación en Agricultura
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Kamara, A.Y. ,  Menkir, A. ,  Fakorede, M.A.B. ,  Ajala, S.O. ,  Badu-Apraku, B. ,  Kureh, I. ,  [Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa] ,  Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa
Journal Article 2009

Autor: Olaoye , G. Ajala, S.O. Adedeji, S.A.

Participatory varietal selection is premised on the basis that only a small percentage of varieties developed by breeders are eventually utilizedbecause farmers are left out of the selection process. Consequently a total of 275 farmers were engaged in the promotion of stem borer resistantmaize va...

Enlace original: https://cgspace.cgiar.org/handle/10568/91517

Investigación en Agricultura
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Olaoye , G. ,  Ajala, S.O. ,  Adedeji, S.A. ,  [Participatory selection of a maize (Zea mays L.) variety for the control of stem borers in a southeastern Nigeria location] ,  Participatory selection of a maize (Zea mays L.) variety for the control of stem borers in a southeastern Nigeria location
Journal Article 2010

Autor: Ajala, S.O. Nour, A.M. Ampong-Nyarko, K. Odindo, M.O.

A study was conducted at six sites of Kenya Coastal region to evaluate candidate maize genotypes for inclusion in stem borer IPM package for the area. Stem borer infestation/damage during the trial period were rather low but nonetheless, significant differences were observed between the insectici...

Enlace original: https://cgspace.cgiar.org/handle/10568/90340

Investigación en Agricultura
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Ajala, S.O. ,  Nour, A.M. ,  Ampong-Nyarko, K. ,  Odindo, M.O. ,  [Evaluation of maize (Zea mays L.) genotypes as a component of integrated stem borer (Chilo partellus Swinhoe) management in coastal region of Kenya] ,  Evaluation of maize (Zea mays L.) genotypes as a component of integrated stem borer (Chilo partellus Swinhoe) management in coastal region of Kenya
Journal Article 2019-02-14

Autor: Ajala, S.O. Olayiwola, M.O. Ilesanmi, O.J. Gedil, M. Job, A.O. Olaniyan, A.B.

Low soil nitrogen (low-N) level is responsible for yield reduction in maize (Zea mays L.) fields in sub-Saharan Africa. A clear understanding of the genetic diversity among early generation inbred lines selected from various elite low-N- tolerant populations offers an opportunity to obtain lines ...

Enlace original: https://cgspace.cgiar.org/handle/10568/102388

Investigación en Agricultura
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Ajala, S.O. ,  Olayiwola, M.O. ,  Ilesanmi, O.J. ,  Gedil, M. ,  Job, A.O. ,  Olaniyan, A.B. ,  [Assessment of genetic diversity among low-nitrogen-tolerant early generation maize inbred lines using SNP markers] ,  Assessment of genetic diversity among low-nitrogen-tolerant early generation maize inbred lines using SNP markers
Journal Article 2005-04

Autor: Kamara, A. Menkir, A. Ajala, S.O. Kureh, I.

The Guinea savannas of Nigeria have a high potential for the production of maize because of favourable environmental conditions. Despite this high potential, the yields obtained in farmers' fields are still very low. This is due to soil degradation and nutrient depletion arising from intensificat...

Enlace original: https://cgspace.cgiar.org/handle/10568/96518

Investigación en Agricultura
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Kamara, A. ,  Menkir, A. ,  Ajala, S.O. ,  Kureh, I. ,  [Performance of diverse maize genotypes under nitrogen deficiency stress in the northern Guinea Savanna of Nigeria] ,  Performance of diverse maize genotypes under nitrogen deficiency stress in the northern Guinea Savanna of Nigeria
Journal Article 2017-06-17

Autor: Udo, E.F. Ajala, S.O. Olaniyan, A.B.

Increase in maize grain yield in West Africa can be achieved by developing maize varieties tolerant to low soil nitrogen (N) and improving soil fertility. Six maize populations were evaluated in two locations in Nigeria under low-N (45 kg N ha−1) and high-N (90 kg N ha−1) conditions to identify m...

Enlace original: https://cgspace.cgiar.org/handle/10568/82627

Investigación en Agricultura
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Udo, E.F. ,  Ajala, S.O. ,  Olaniyan, A.B. ,  [Physiological and morphological changes associated with recurrent selection for low nitrogen tolerance in maize] ,  Physiological and morphological changes associated with recurrent selection for low nitrogen tolerance in maize
Journal Article 2009

Autor: Ajala, S.O. Masajo, T.M. Winslow, M.D.

Advanced rice breeding lines were evaluated in eight environments (two seasons and four N-fertilizer levels) to investigate the effectiveness of selecting genotypes for less favorable low fertilizer input environments. Highly significant Environment (E), Genotype (G) and G x E. interaction effect...

Enlace original: https://cgspace.cgiar.org/handle/10568/90224

Investigación en Agricultura
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Ajala, S.O. ,  Masajo, T.M. ,  Winslow, M.D. ,  [Response of rice breeding lines to Nfertilizer application] ,  Response of rice breeding lines to Nfertilizer application
Journal Article 2009-05

Autor: Olaoye, G. Menkir, A. Ajala, S.O. Jacob, S.

To evaluate local maize varieties from Burkina Faso under moisture deficiency to identify suitable genotypes to serve as sources of drought tolerance alleles for incorporation into improved cultivars. Methodology and results: Fourteen local maize varieties from Bu...

Enlace original: https://cgspace.cgiar.org/handle/10568/90208

Investigación en Agricultura
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Olaoye, G. ,  Menkir, A. ,  Ajala, S.O. ,  Jacob, S. ,  [Evaluation of local maize (Zea mays L.) varieties from Burkina Faso as source of tolerance to drought] ,  Evaluation of local maize (Zea mays L.) varieties from Burkina Faso as source of tolerance to drought
Journal Article 2009

Autor: Ajala, S.O. Ago, C.E. Olaoye , G.

A maize population was subjected to three different selection procedures to determine the best methodfor its improvement in a study conducted at Ibadan, Nigeria. Considerable genetic variability existedwithin the population for effective selection for each of the traits considered, using any of t...

Enlace original: https://cgspace.cgiar.org/handle/10568/91518

Investigación en Agricultura
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Ajala, S.O. ,  Ago, C.E. ,  Olaoye , G. ,  [Comparison of predicted responses to three types of recurrent selection procedures for the improvement of a maize (Zea mays L.) population] ,  Comparison of predicted responses to three types of recurrent selection procedures for the improvement of a maize (Zea mays L.) population

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