| Abstract: | A cross was made between B. oleraceae var. acephala and R. sativus. The use of a piece of cotton soaked with the growth regulator, N-m-tolyphthalamic acid at 100 ppm and attached to the pedicel at the time of pollination resulted in set of several pods with one viable seed. The hybrid kale x radish appeared vegetatively intermediate between the parents except for the flower color which resembled the radish. The F1 plant propagated asexually and maintained under screen isolation cages with pollinating insects for a period of four years yielded only one viable F2 seed. The single F2 plant obtained, an allotetraploid, failed to yield any fertile seeds through selfing. Backcrossing of this F2 plant to the radish has yielded two seeds.Department of Horticulture, Michigan State UniversityWith 7 figuresJournal article No. 2923. From the Michigan Agricultural Expreriment Station. |
