The Tropical Fruit Forum

This is a description of a Hiyu on the japanese genebank seems it hasn`t any specific traits..

From observation over the last years I won`t expect growth rate like you both. 1 year seedlings are no more then 20cm in height at the end of the year. No matter if irrigated, fertilized or not. I observe a strange growth pattern here  in my garden. First flush is often stopped by the cold again, in June is another flush. In late August plants start to grow again this is the strongest flush but most of this growth will freeze in winter as it isn`t really hardened when it gets cold.
I expect it is due to our climate here. Not much heat in summer.
I doubt such 1 year seedlings will survive a strong winter. 2 year old plants may be better suited. On the other hand winter has been very mild over the last years. They might survive but probably less cold selection wil take place...

It`s a pity.  I know some sellers in the US with quite reasonable prices. But it isn`t allowed  to import seeds anymore. As long as you aren`t a scientific researcher it is not possible to obtain an import permit.
I wish I had done it before ...

It was my impression too (but it is just my impression) that when I did cross pollination many seedlings were zygotic. Especially when I pollinate with Ichang Papeda. For sure the majority were monoembryonic.
Now I plan to do a large scale winter test similar to what Kumin did. So I need a large amount of seeds. I found only INRA as a supplier in Europe with a very restricted selection of varieties. Today I got an answer that even less varieties than in the catalogue are available.
Sacaton and Yuma are not available.
Are there other seed supplier in the EU? I thought spanish nurseries might have seeds. But couldn`t find any so far.

I will go for Sacaton and Yuma if available.

Nobody has seen these tables?
I intend to make a seed trial  and would like to know which variety has the greatest chance of giving zygotic seedlings.

I know there several posts here and on other forums about average percentage of zygotic/nucellar offspring in different Poncirus hybrids. But I can`t find it now.
Anyone can help?

Also ,to grow plants in charcoal only doesnt seem to be a good idea because ...

but they do, as @sunny has published it. Shouldn't the question be how they do it?

This might be a little late but I am interested in comparing different Poncirus fruits.
Anyone still has some and can send me 1 or 2?
Thanks!

I am inside EU.

Before charcoal can be used it must soak in nutrients for a longer time. If not it will be a detriment to any plant.

it is more the ash that provides the nutrients. Charcoal is a huge sponge and will absorb anything until it is loaded.
Growing plants with fresh charcoal will not benefit the plants.

It is also true to human that a race of people who live in tropical region will never develop an ability to adjust to the northern weather, but they did go through evolutionary adaptation to their own hot climate.

This is exactly what humans and it relatives did. Not only once. Even twice or more depends the way you count. Dmanisi man, H.erectus, H.heidelbergensis, H.sapiens. The even more important point is what Ilya already pointed out especially for us H.sapiens.
Native americans did the vice versa within a couple of 1000 years, from arctic to tropics only by cultural adaptation.