Evaluation of testcrosses involving extra-early maturing maize inbred lines under under stress and nonstress environments

The GGE biplot tool has potential for determining combining ability effects, identifying distinct heterotic groups and efficient testers in a line × tester study. However, its use for such analysis has not been adequately explored. The objectives of this study were to (i) assess combining ability of extra-early maturing lines (80–85 days to physiological maturity) and testers for grain yield (ii) classify lines into heterotic groups and (iii) identify most efficient testers using GGE biplot. Sixty-three lines crossed to four testers were evaluated under Strga-infested, drought and nonstress environments for 2 years in Nigeria. Results of GGE biplot analyses of combining ability and heterotic patterns of yield of lines, grouping and identification of testers were close to those of the conventional line × tester method. Testers TZEEI 13, TZEEI 21 and TZEEI 29 were highly efficient in grouping lines under stress environments while testers TZEEI 21 and TZEEI 29 were best under nonstress environments. The GGE biplot identified tester TZEEI 13, TZEEI 21 and TZEEI 29 as most efficient across stress environments and TZEEI 21 and TZEEI 29 across nonstress environments.

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Data and Resources

Additional Info

Field Value
Creator Badu-Apraku, Baffour
Creator Affiliation International Institute of Tropical Agriculture (IITA)
Creator ID Type ORCID
Creator ID 0000-0003-0113-5487
Subject Vocab (AGROVOC/GACS/CAB) Drought,Striga hermonthica,Combining ability,Maize,Striga,Maturity,Stress,Anthesis,Yield,Grain,Pollen,Nitrogen,Moisture,Inbred lines
Subject(s) GGE Biplot,Ideal tester,Extra early,Root lodging
Publisher International Institute of Tropical Agriculture (IITA)
Contributor Person R.O. Akinwale
Contributor Role Other
Contributor Project Lead Organisation Center International Institute of Tropical Agriculture (IITA)
Contributor Project Lead Center International Institute of Tropical Agriculture (IITA)
Contributor CRP CGIAR Research Program on Maize
Contributor Partner Not applicable
Contributor Donor Bill and Melinda Gates Foundation (BMGF)
Contributor Project Drought Tolerant Maize for Africa (DTMA)
Project ID
Contributor Affiliation International Institute of Tropical Agriculture (IITA)
Open-Access status Open Access
Production Date 2014-11-03
Embargo End Date
Content Type Dataset
File Format csv
Identifier Type DOI
Identifier https://doi.org/10.25502/m7a3-nv86/d
Identifier Citation Biplot analysis of line X tester data of maize (Zea mays L.) inbred lines under stress and nonstress environments, Badu-Apraku, B. and Akinwale, R. O.*, in: Cereal Research Communications, volume 47, number 3, pages 518-530, ISSN 0133-3720, 2019. http://dx.doi.org/10.1556/0806.47.2019.25
Source Drought Tolerant Maize for Africa (DTMA)
Language English
Relation Not applicable
Agroecological Zone Semiarid warm tropics
Coverage Region Western Africa
Coverage country Nigeria
Coverage Admin Unit Not applicable
Coverage Y (Latitude) 9.082
Coverage X (Longitude) 8.67528
Coverage Start Date 2013-05-03
Coverage End Date 2014-11-03
Contact Badu-Apraku, Baffour Maize Breeder, International Institute of Tropical Agriculture (IITA)
Contact Email b.badu-apraku@cgiar.org
Restriction CC-BY 4.0
Email Permission None
Rights CC-BY 4.0