Caracteristicas y propiedades funcionales del maiz morado zea. Caracterizacion agromorfologica del maiz zea mays l. Twentyfour lines at the s5 inbreeding level were crossed with two testers cml 247 and cml 254 to produce test crosses. Therefore, heterosis in reference to a standard check variety standard heterosis is important for commercialization of maize hybrids shrestha et al. Origen y diversificacion del maiz libro descargable en pdf. Physiological basis of heterosis for grain yield in maize. Results showed that general combining ability gca and specific combining.
It was proposed that seedling leaves can be used as a model system to investigate the molecular basis of maize heterosis, because it is commonly observed that hybrids produce larger leaf areas. Heterosis, hybrid vigor, or outbreeding enhancement is the improved or increased function of any biological quality in a hybrid offspring. Comercio exterior hizo algunos cambios edi toriales y es responsable del tftulo. Germoplasma, hibrido transgenico, maiz, zea mays l. The crossing of bos taurus x bos indicus cattle, in this specific case holstein x different zebu breeds, are a great option of profitability for colombia to face the challenge of the free trade agreement with europe. These effects can be due to mendelian or nonmendelian inheritance.
An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents. Heterosis is a phenomenon in which the f1 resulting from the crossing of two genotypes, is superior in growth, size, yield and vigor 1. The research aimed to study heterosis, combining ability and performance along with their interrelationship across three environments. Variance due to general gca and specific combining abilities sca and their interaction with environment was found to be significant for most of studied traits.