Do any of you know of references that prove or disprove? the transmission of disease through pollen?
Also consider that unless you are very lucky to find; the male parent blooming days before the female/ova parent; you will have timing issues.
If you want to introduce Fall ripening to a spring ripening Var, you may need to store your pollen for many weeks.
Ideally you should be prepared to store for a year. That would give you two shots per lot of pollen.
(and if you are lucky enough to work at a lab - perhaps you could get long term storage, in Liq Nitrogen)
My apologies, you would have to join;
www.researchgate.net to download this paper:
https://www.researchgate.net/publication/317052288_Influence_of_Storage_Duration_and_Storage_Temperature_on_In-Vitro_Pollen_Germination_of_Citrus_SpeciesAt 48 weeks these scientists were getting 23% viability. Using a Freezer at -20 deg C.
Orange pollen / 48 week storage = 28.0 %
Mandarin pollen / 48 week storage = 32.4 %
Grape fruit pollen / 48 week storage = 23.0 %
These results could be replicated at home or on the farm.
Best wishes,
ZAP