Ploidy of small individual embryo-like structures agents from maize anther cultures treated with chromosome doubling agents and calli derived from them

adn anther culture biochemie biochemistry biochimie cal callo callus chromosomenzahl colchicina colchicine cultivation cultivo cultivo de anteras cultivo de tejidos culture de tissu diploidia diploidie diploidy dna fisiologia vegetal fitomejoramiento ga genotipos genotypes gibberelline haploidia haploidie haploidy herbicidas herbicide herbicides nucleolus oryzalin pflanzenphysiologie plant breeding plant physiology ploidie poliploidia polyploidie polyploidy pratique culturale tissue culture zea mays