UTILIZACIÓN DE PLANTAS PUENTE EN EL MEJORAMIENTO DEL COMPLEJO Calibrachoa – Petunia

The hybridization technique through bridging plants uses indirect or intermediate crosses as an instrument to cross parents with different levels of ploidy. objective this work is obtain hybrids that can be used bridges in ornamental species the genus Petunia and/or Calibrachoa. This overcome incompatibility barriers arise when direct between species. To hybrids, directed were carried out between: P. integrifolia, inflata, interior and axillaris subspecies axillaris; C. linoides, ovalifolia, thymifolia, caesia, x hybrida var. Kabloom blue yellow. first step was detection putative combinations. In order do so, fruiting rate, which defined formation fruits every 10 intergeneric crosses, compared, variable results found for each combination. A hybrid plant obtained inflata ‘kabloom yellow’, where morphological, pollen viability meiotic studies confirm its nature. With bridge obtained, reciprocal all Calibrachoa involved, obtaining 31 sharing morphological characteristics both genera combinations integrifolia. identification intergenetic a high rate opens doors future on development embryos. would allow determining optimum time apply embryo rescue techniques increase number plants.