Evaluation of exotic and adapted maize (Zea mays L.) germplasm crosses
作者： Luiz Antonio Michelini
DOI: 10.31274/RTD-180813-12230
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摘要: Exotic germplasm may be used to increase the genetic variability in U.S. maize populations. The objectives of this study were determine relative performance exotic two widely Corn Belt populations, proportions adapted that exhibited superior performance, and heterotic patterns between populations A 13x13 simple lattice design was conducted seven Iowa environments. treatments included (0% exotic) (100% exotic), crosses (50% backcrosses (75% or 25% germplasm) them, check varieties. results for grain yield (q/ha) suggest best percentage 50%. Exceptions observed Cateto by BS26 (51.5 q/ha), Caribbean Flint (56.1 where highest no germplasm, (57.1 cross Tuxpeno BS26, treatment with (58.8 q/ha). Suwan 1 germplasms have greater potential continuing development. Both had mild selection adaptation compared other germplasms. Despite without considering reciprocal crosses, BS13 (72.0 q/ha) (69.1 ranked fourth fifth per se, top
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