Fig. 2From: Targeted generation of polyploids in Hydrangea macrophylla through cross-based breedingCrosses between diploid cultivars result in diploid and polyploid offspring plants. The proportion of polyploid progenies is given in %. In reciprocal crosses, the frequencies of spontaneously polyploidized progenies depend on the cross direction. The arrow points to the cultivar that was used as pollinizerBack to article page