Registration of Strigaresistant and Droughttolerant tropical early maize populations TZEW Pop DT STR C4 and TZEY Pop DT STR C4

Two maize (Zea mays L.) populations, TZE-W Pop DT STR C4 (Reg. No. GP-574, PI 654407), white- grained, fl int/dent, and TZE-Y Pop DT STR C4 (Reg. No. GP-575, PI 654408), yellow-grained, fl int/dent with drought tolerance and moderate levels of resistance to the fl owering parasitic witchweed, Striga...

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Autores principales: Badu-Apraku, Baffour, Yallou, C.G.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Wiley 2009
Materias:
Acceso en línea:https://hdl.handle.net/10568/90209
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author Badu-Apraku, Baffour
Yallou, C.G.
author_browse Badu-Apraku, Baffour
Yallou, C.G.
author_facet Badu-Apraku, Baffour
Yallou, C.G.
author_sort Badu-Apraku, Baffour
collection Repository of Agricultural Research Outputs (CGSpace)
description Two maize (Zea mays L.) populations, TZE-W Pop DT STR C4 (Reg. No. GP-574, PI 654407), white- grained, fl int/dent, and TZE-Y Pop DT STR C4 (Reg. No. GP-575, PI 654408), yellow-grained, fl int/dent with drought tolerance and moderate levels of resistance to the fl owering parasitic witchweed, Striga hermonthica (Del.) Benth, were developed at the International Institute of Tropical Agriculture (IITA). The two breeding populations were released to national maize programs in west and central Africa as source germplasm in 2004 for the development of Striga-resistant synthetic varieties, parental inbred lines, and hybrids. The populations were released for their superior grain yield under Striga-infested and noninfested conditions. They also have good levels of resistance to maize streak virus, tropical lowland rust (incited by Puccinia polysora Underw.), and blight [caused by Bipolaris maydis (Nisikado & Miyake) Shoemaker]. In multilocation trials in Benin Republic and Nigeria, 2006 and 2007, TZE-W Pop STR C4 outyielded the Striga-susceptible check TZE Comp. 4 by 44% under Striga infestation and 12% when noninfested. Under the same conditions, the increased yield for TZE-Y Pop DT STR C4 was 42% (Striga infested) and 16% (noninfested). The check variety TZE Comp. 4 suffered the highest Strigadamage and supported the highest number of emerged Striga plants when Striga infested.
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spelling CGSpace902092023-10-02T10:20:16Z Registration of Strigaresistant and Droughttolerant tropical early maize populations TZEW Pop DT STR C4 and TZEY Pop DT STR C4 Badu-Apraku, Baffour Yallou, C.G. maize drought tolerance striga hermonthica germplasm striga infestation striga-resistant inbred lines maize programs striga seeds yield Two maize (Zea mays L.) populations, TZE-W Pop DT STR C4 (Reg. No. GP-574, PI 654407), white- grained, fl int/dent, and TZE-Y Pop DT STR C4 (Reg. No. GP-575, PI 654408), yellow-grained, fl int/dent with drought tolerance and moderate levels of resistance to the fl owering parasitic witchweed, Striga hermonthica (Del.) Benth, were developed at the International Institute of Tropical Agriculture (IITA). The two breeding populations were released to national maize programs in west and central Africa as source germplasm in 2004 for the development of Striga-resistant synthetic varieties, parental inbred lines, and hybrids. The populations were released for their superior grain yield under Striga-infested and noninfested conditions. They also have good levels of resistance to maize streak virus, tropical lowland rust (incited by Puccinia polysora Underw.), and blight [caused by Bipolaris maydis (Nisikado & Miyake) Shoemaker]. In multilocation trials in Benin Republic and Nigeria, 2006 and 2007, TZE-W Pop STR C4 outyielded the Striga-susceptible check TZE Comp. 4 by 44% under Striga infestation and 12% when noninfested. Under the same conditions, the increased yield for TZE-Y Pop DT STR C4 was 42% (Striga infested) and 16% (noninfested). The check variety TZE Comp. 4 suffered the highest Strigadamage and supported the highest number of emerged Striga plants when Striga infested. 2009-01 2018-01-15T10:50:52Z 2018-01-15T10:50:52Z Journal Article https://hdl.handle.net/10568/90209 en Limited Access Wiley Badu-Apraku, B. & Yallou, C.G. (2009). Registration of-resistant and drought-tolerant tropical early maize populations TZE-W Pop DT STR C and TZE-Y Pop DT STR C. Journal of Plant Registrations, 3(1), 86-90.
spellingShingle maize
drought tolerance
striga hermonthica
germplasm
striga infestation
striga-resistant
inbred lines
maize programs
striga seeds
yield
Badu-Apraku, Baffour
Yallou, C.G.
Registration of Strigaresistant and Droughttolerant tropical early maize populations TZEW Pop DT STR C4 and TZEY Pop DT STR C4
title Registration of Strigaresistant and Droughttolerant tropical early maize populations TZEW Pop DT STR C4 and TZEY Pop DT STR C4
title_full Registration of Strigaresistant and Droughttolerant tropical early maize populations TZEW Pop DT STR C4 and TZEY Pop DT STR C4
title_fullStr Registration of Strigaresistant and Droughttolerant tropical early maize populations TZEW Pop DT STR C4 and TZEY Pop DT STR C4
title_full_unstemmed Registration of Strigaresistant and Droughttolerant tropical early maize populations TZEW Pop DT STR C4 and TZEY Pop DT STR C4
title_short Registration of Strigaresistant and Droughttolerant tropical early maize populations TZEW Pop DT STR C4 and TZEY Pop DT STR C4
title_sort registration of strigaresistant and droughttolerant tropical early maize populations tzew pop dt str c4 and tzey pop dt str c4
topic maize
drought tolerance
striga hermonthica
germplasm
striga infestation
striga-resistant
inbred lines
maize programs
striga seeds
yield
url https://hdl.handle.net/10568/90209
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