Joseph Lofthouse wrote:I'm growing interspecies hybrids between common beans and runner beans. I believe that the cross only works if the common bean is the mother, and the runner bean is the pollen donor. You can tell if attempts at crossing were successful in a number of ways... The cotyledons of runner beans stay below ground. The cotyledons of common beans are high in the air. The cotyledons of F1 hybrids are approximately at ground level. (photos below). Another way to tell, is that if scarlet flowers show up in the common bean patch, it may be because of cross pollination. Naturally occurring crosses are more likely if the two species are planted closely together. Also, if only bush beans are grown next to runner beans, and vines show up in the bush beans, they may be from a naturally occurring cross. In the F1, runner bean traits were dominant for seed coat color, flower color, and pod type.
Rachel Stark wrote: I wanted to ask you if the F1 hybrids from such a cross are more heat and humidity resistant than the common bean parent?
Ethan Nielsen wrote:How were the beans from your F1 cross? Did they produce well in Utah? Did you save any seeds? (asking for a friend...)