I have been looking at trying my hand at breeding some cold hardier bananas. I have collected as many cold hardy wild species as i could. I haven't managed to get musa griersonii or musa darjeeling giant yet and i ruled out musa basjoo as most posts here suggest compatibility issues. I have some musa ornata coming and I have germinated my seeds of Musa sikkemensis, Musa thompsonii, Musa yunnanensis , Musa helens hybrid and Musa red tiger I can look at my plan to do some hybridizing. I am dubious about helens hybrid as no one seems to be able to confirm its parentage.
My initial intent was to cross wild species with diploids. I have Aa: Lacatan, sucrier and inarnibal. Im hoping for ney poovan but as its Ab i feel its usefulness is limited.
As these should carry some or all of the genes needed for parthenocarpy on at least one side of the DNA theres a 50 50 chance of those genes being in any off spring. I will try the pollen cross either way as the parthenocarpy genes could be either side. Im encouraged by the fact there are PNG edible diploid bananas of the phenotype musa AS which are schizocarpa diploids. However if helens hybrid really is a chini champa sikkimensis hybrid then its not guaranteed. i have searched the forum for peoples experiances and
I did read with interest this post that suggested Abb triploids produced fertile pollen, which should carry the parthenicarpic genes:
Weird hybrid
I have Dwarf Ducasse (apparently pisang awak / dwarf namwah?? is this true?), pisang ceylan (mysore), dwarf kalapua, silver bluggoe and blue java. if these produce viable pollen Id like to try pollinating wild diploids to see if I could get triploid seedlings however in this post Gabe stated triploid bananas dont produce viable pollen.
Is the pollen of Saba/cardaba is good for....?
Im going to assume gabe is correct considering his knowledge but are any triploids female fertile? I also have Aaa: red dacca, williams cavendish and gros michele as well as Aab: Pacific plantain, mangaroa torotea and Dwarf french plantain. If the Aab or aaa are female fertile theres a good chance seedling offspring could have the parthenocarpic genes.
More exotic, i have gold finger an Aaab tetraploid, is it female fertile? I could try pollinate it with wild pollen giving possible XAa or xAb genes? I have also been looking into a as home Tc kit for multiplying a few of my edible bananas and I have considered using colchine on wild species such as sikkimensis to create synthetic triploid/tetraploids that could be crossed with edible diploids to perhaps create edible triploids however i have no way to confirm the success or end result of the ploidy effect or if its a stable mutation.
If anyone has actually tried these or has any other suggestions id be open to hear them.