Search Results - "Tongoona, P."

Assessment of genetic gains for grain yield and components from introgression of temperate donor inbred line into tropical elite maize inbred lines: II. Performance inter se by Musundire, L., Derera, J., Dari, S., Tongoona, P.

“…In maize breeding programs, temperate germplasm can be used to introgress genes from temperate inbred lines into elite tropical maize inbred lines to improve…”
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Assessment of genetic gains from introgression of temperate genes into tropical elite maize inbred lines: I. performance per se by Musundire, L., Derera, J., Dari, S., Tongoona, P.

“…There is very limited information on genetic gains and improvement of maize inbred line performance per se that has been attained through introgression of…”
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Association analysis for resistance to Striga hermonthica in diverse tropical maize inbred lines by Stanley, A. E., Menkir, A., Ifie, B., Paterne, A. A., Unachukwu, N. N., Meseka, S., Mengesha, W. A., Bossey, B., Kwadwo, O., Tongoona, P. B., Oladejo, O., Sneller, C., Gedil, M.

“…Striga hermonthica is a widespread, destructive parasitic plant that causes substantial yield loss to maize productivity in sub-Saharan Africa. Under severe…”
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Genetics of extra‐early‐maturing yellow and orange quality protein maize inbreds and derived hybrids under low soil nitrogen and Striga infestation by Abu, P., Badu‐Apraku, B., Ifie, B. E., Tongoona, P., Ribeiro, P. F., Obeng‐Bio, E., Offei, S. K.

“…The development and commercialization of extra‐early quality protein maize (QPM)–provitamin A (PVA) hybrids that are tolerant of low soil N (LN) and Striga…”
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A diagnostic appraisal of the sorghum farming system and breeding priorities in Striga infested agro-ecologies of Ethiopia by Gebretsadik, Rebeka, Shimelis, H., Laing, M.D., Tongoona, P., Mandefro, N.

“…•Major sorghum production constraints were identified and prioritized.•Sorghum landraces available in the study areas were identified and characterized.•Based…”
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Analysis of population structure and genetic diversity in a Southern African soybean collection based on single nucleotide polymorphism markers by A. Tsindi, J. S. Y. Eleblu, E. Gasura, H. Mushoriwa, P. Tongoona, E. Y. Danquah, L. Mwadzingeni, M. Zikhali, E. Ziramba, G. Mabuyaye, J. Derera

“…Soybean is an emerging strategic crop for nutrition, food security, and livestock feed in Africa, but improvement of its productivity is hampered by low…”
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Response to S1 recurrent selection for resistance to two stem borers, Busseola fusca and Chilo partellus, in two tropical maize populations by Mwimali, Murenga, Derera, John, Mugo, S, Tongoona, P

“…Stem borers, Busseola fusca and Chilo partellus, are among the key devastating lepidopteran insect pests of maize causing grain yield losses. Recurrent…”
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Genomics-assisted breeding for boosting crop improvement in pigeonpea (Cajanus cajan) by Pazhamala, Lekha, Saxena, Rachit K, Singh, Vikas K, Sameerkumar, C V, Kumar, Vinay, Sinha, Pallavi, Patel, Kishan, Obala, Jimmy, Kaoneka, Seleman R, Tongoona, P, Shimelis, Hussein A, Gangarao, N V P R, Odeny, Damaris, Rathore, Abhishek, Dharmaraj, P S, Yamini, K N, Varshney, Rajeev K

“…Pigeonpea is an important pulse crop grown predominantly in the tropical and sub-tropical regions of the world. Although pigeonpea growing area has…”
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Response to S1 recurrent selection for resistance to two stem borers, Busseola fusca and Chilopartellus, in two tropical maize populations by Mwimali, Murenga, Derera, John, Mugo, S., Tongoona, P.

“…Stem borers, Busseola fusca and Chilo partellus , are among the key devastating lepidopteran insect pests of maize causing grain yield losses. Recurrent…”
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Marker-assisted selection for low phytic acid (lpa1-1) with single nucleotide polymorphism marker and amplified fragment length polymorphisms for background selection in a maize backcross breeding programme by Naidoo, R, Watson, G. M. F, Derera, J, Tongoona, P, Laing, M. D

“…The level of phytic acid is difficult to assess in a maize breeding programme, therefore a co-dominant single nucleotide polymorphism (SNP) marker was used to…”
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Generation mean analysis of leaf chlorophyll concentration from mid-silking to physiological maturity in some tropical maize (Zea mays L.) genotypes under low and high nitrogen dosages by Mushongi, A. A., Derera, J., Tongoona, P., Lyimo, N. G.

“…Genetic control of the leaf chlorophyll concentration (LCC) in tropical maize ( Zea mays L.) genotypes has not been established, especially at different…”
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Combining ability of low phytic acid (lpa1-1) and quality protein maize (QPM) lines for seed germination and vigour under stress and non-stress conditions by Naidoo, R., Tongoona, P., Derera, J., Laing, M. D., Watson, G. M. F.

“…Grain yield is more likely to be compromised by poor seed germination and vigour in low phytic acid (LPA) and quality protein maize (QPM) than normal maize…”
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Farmers' Perceptions on Rice Varieties in Sikasso Region of Mali and their Implications for Rice Breeding by Efisue, A, Tongoona, P, Derera, J, Langyintuo, A, Laing, M, Ubi, B

“…Rice is an important staple food and cash crop. Although many varieties of rice have been developed to date, few are adopted possibly because researchers did…”
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Contribution of synthetic tetraploids (AAAA) and diploids (AA) to black Sigatoka resistance and bunch weight to their triploid progenies by Barekye, A., Tongoona, P., Derera, J., Laing, M.D., Tushemereirwe, W.K.

“…► The male-parent triploid progeny heritability estimate for the number of leaves at harvest was greater than the female parent estimate. ► The diploid parents…”
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Provenance Productivity of High and Low Elevation Pinus tecunumanii in Zimbabwe by Nyoka, B. I., Tongoona, P., Gumbie, C. M.

“…The productivity potential of provenances and families of Pinus tecunumanii were determined across a range of environments in four orthogonal field trials in…”
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Stem breakage and forking in low and high elevation Pinus tecunumanii by Nyoka, B. I., Tongoona, P., Gumbie, C. M.

“…The incidences of stem breakage and forking at ages five and eight years in low and high elevation were assessed in multilocation provenance-progeny tests…”
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Screening Early-Generation Progenies of Interspecific Rice Genotypes for Drought-Stress Tolerance During Vegetative Phase by Efisue, A. A., Tongoona, P., Derera, J., Ubi, B. E.

“…Drought is an important production constraint in rice (Oryza sativa L.) in Africa. A breeding approach is needed to improve traditional rice by introgression…”
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Genetic studies and a search for molecular markers that are linked to Striga asiatica resistance in sorghum by Mutengwa, C S, Tongoona, P B, Sithole-Niang, I

“…Sorghum [Sorghum bicolor (L.) Moench] is important both as a food and feed crop in Zimbabwe. Its yield losses of sorghum can be up to 100% when the crop is…”
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Cone and seed yield of 16 populations of Pinus tecunumanii at 5 sites in Zimbabwe by Nyoka, B.I, Tongoona, P

“…Cone and seed yield of 160 families from 16 populations (10 families per population) of Pinus tecunumanii were assessed in eight- and nine-year old…”
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Comparison between random amplified polymorphic DNA (RAPD) and simple sequence repeat (SSR) markers with high resolution melt analyses in genetic variation analysis among selected sorghum genotypes by Mofokeng, MA, Watson, G, Shimelis, H, Tongoona, P

“…Understanding the genetic diversity of germplasm is essential in plant breeding programmes and germplasm management. Molecular markers are efficient and…”
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