[Genetic variability and utilization in plant breeding of horticulture crops]

analytical methods descendance environmental factors facteur du milieu factores ambientales field experimentation fitomejoramiento fruit crops frutales genetic markers genetic variation genotipos genotypes haploidia haploidie haploidy hortalizas (plantas) hybride hybrids interspecific hybridization methode methods ornamental plants plant breeding plantas ornamentales plante ornementale poland pologne polonia production de semences progenie progeny seed production technique analytique variedades varieties vegetable crops