Hi peep, hi all
Peep, I think that what you are doing with your citrus collection (gathering infos, images and now scanning leaves) is really great. It will surely be very helpfull.
About yuzu n°30 here is what I've heard:
A couple planted about 250 yuzu seeds in France in a field.
They selected the more cold résistant years after years.
A few are now famous : n° 1, 3 and 30...
It is explained in a youtube video (in french) called "ils cultivent des agrumes résistants au froid "
In the same vidéo they also said that yuzu n30, is called "yuzu"30 because it is from a yuzu seed but that is actually not a "real" yuzu taste. It is more like a mandarin and yuzu mix. They still say it is a very good fruit.
Hope that helps! Cheeers
I add the link of the video (if it worked)
https://www.youtube.com/watch?v=OmvSheROGS4
explenation on yuzu n°30 around 19'30seconds.
Actually this video is rather misleading, N30 has nothing to do with Yuzu clonal selection by Sebastian (alias) and Bernard,
Alias presented this hybrid on AgrumesPassion forum some time ago:
https://www.agrumes-passion.com/viewtopic.php?t=5027&sid=0bc24ca43b1fb9d69352b3f0b6d9e2f0Google translation:
"This new hybrid would be the cross between a juno citrus and a mandarin, obtained in Montenegro (Bar).
Mandarin may be a satsuma (for taste) or a mandarin geleking (for the shape of the fruit).
The skin is lumpy and ribbed orange-coloured. The fruit is about 6 to 7 cm in diameter.
The pulp is orange, acidic and sweet reminiscent of mandarin satsuma a little but with a very pronounced acidity.
This citrus is given as cold-resistant, but to date no tests below -10 degrees Celsius have been carried out. "