Tropheus, I have tried the Centennial kumquat just a few times and it was more sour to me than the Nagami so I didn't buy the tree. But maybe if I ate a fruit that was perfectly ripe it might be better than a Meiwa. I have 3 Meiwa trees in pots and many grafted on my larger trees.
The larger kumquat fruits that really surprised me was the Indo Kumquat, must sweeter than the Centinnial kumquats I ate. I got the Indo Kumquat mixed up with the Nippon Orangequat which is not good, too sour. But the Indio Kumquat is one of the best and sweetest kumquats I have eaten. At the time I ate it, it was better tasting than the Meiwa or Marumi since it is much larger fruit and much more juice. I think I took the brix reading somewhere, will post it when I find it.
Datasheet on Centennial Kumquat: "The flesh is acidic, juicy, light orange, and low-seeded."
VI-594,
https://citrusvariety.ucr.edu/crc4082Nippon Orangequat. Supposed to be a cross of kumquat x meiwa. But it is sour.
VI-539,
https://citrusvariety.ucr.edu/crc3360Indio Mandarinquat, best tasting to me.
VI-335,
https://citrusvariety.ucr.edu/crc3759I think the largest fruit is the Variegated Centennial Kumquat fruits. I have seen many trees in people's yards and commercial landscaping use. I may need to add this one to my collection just so I can compare the taste again with all the different varieties I grow (Nagami, Nordmann, Meiwa, Maru, Variegated Calamondin, Fukushu, Indio Mandarinquat, and a few other specials).
Of all the kumquats that I have tasted in the last 30yrs, I would say the Indio Kumquat is the best tasting, very juicy and my top one. Even though the new Crispy Honey kumqaut may have the higher brix reading (18-23), I don't care for the Crispy Honey tough skin, it is thin, gets stick between my teeth so I will stick with the Indio Mandarinquat and the other kumquats like the Meiwa, Marumi, Nordmann.
