The Tropical Fruit Forum

According to http://fruitsandnuts.ucdavis.edu/dsadditions/_Asian_Pears/:
"Most Japanese pear varieties are dwarfed about 50% on P. communis rootstock"
and "[Nijisseiki/20th Century] should not be grown on P. Communis rootstock because it is badly dwarfed."

My question is whether there is a Nashi that is minimally affected by P. communis roostock. I want to graft onto a Josephine de Malines espalier. If that works, then the next year I guess I could do Nijisseiki on top of that, because the interstem should no longer dwarf it.
My last contingency would be to use a Chinese White Pear like Ya Li for an interstem, but they are bland from the description I've read.

Recently discovered in the Amazon region of Brazil.
Grows on clay or lawn.
Can be used dehydrated or deuced.
I will be able to Fedex seeds in future.

The suckering is so annoying with this species. But I've noticed there are a lot of cultivars that people have bred in Europe and North America now.

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Hi all.
Would like to graft over a Pyrus calleryana (Chinese Pear) with species like Amelanchier alnifolia, Crataegus schraderiana/azarolus or Sorbus aucuparia/domestica.
Which of these will work?
Is there an interstem that could potentially make all these grafts compatible with Pyrus rootstock?

Thanks

Seeking a cultivar of Imbe called 'Cile'. Plenty of them present in California.

I also want seedless lychee but quarantine forbids any scions are sent to me, so I'll have to grow from seed.

Thank you for understanding.

A paper was done on this in 2014 by Fiorella Fernanda Mazine, Vinicius Castro Souza, Marcos Sobral, Félix Forest & Eve Lucas in KEW BULLETIN (2014) 69: 9497      DOI 10.1007/S12225-014-9497-X
A preliminary phylogenetic analysis of Eugenia (Myrtaceae: Myrteae), with a focus on Neotropical species.

I've put the phylogenetic trees below. They don't include some major species like candolleana, luschnathania and selloi. Probably the most interesting finding is that uniflora and pitanga are in the same clade as brasiliensis.

Edit: I was told that E. candolleana belongs to the Racemosae section (Clade 8 on the dendrogram). I always suspected it was related to Eugenia florida.

Small number of affected leaves on feijoa and pitomba.

Known as jabuticaba-coroada-da-restinga.

On E-Jardim website says grows 2-3m but photo is of much bigger tree.

http://e-jardim.com/produto_completo.asp?IDProduto=302

Anyone have the Ka-pow Chilean Guava from Sutton’s Seeds in UK that was supposed to have larger fruit? Or some other good selection of Chilean Guava?

So little information available on Eugenia zeyheri. Who is growing it? Shrub is only 1m tall and has edible black berries. Called 'Eastern Cape Myrtle' and meant to be from South America, but it's not on Helton's website and the name sounds like it could be from South Africa's eastern cape.

New World (North and South America): E.g. cherimoya, rollinia, jaboticaba, sapodilla, mamey sapote, canistel, green sapote, passiflora, pawpaw, guava, grumichama, cherry rio grande, pitomba, rainforest plum, pitanga, pitangatuba/pitangola/starcherry, abiu, annona, araza/araca boi, papaya, babaco, black sapote, white sapote, pineapple, strawberry, achacha, chupa-chupa, bunchosia/peanut butter tree, panama berry/jamaica cherry, acerola, opuntia/prickly pears, pitaya/dragonfruit, feijoa, American persimmon, inga/ice cream bean, star apple, monstera, ugni, tamarillo and muscadine.

Old World (Asia, Europe, Africa): Pretty much everything else, e.g. banana, mango, apple, peach, plum, cherry, grape, fig, pomegranate, mulberry, lychee, longan, rambutan, pulasan, lansium spp., carambola/starfruit, watermelon, durian, breadfruit, jakfruit, chempadek, marang, mangosteen, citrus, kiwifruit, jujube, olive, date, Japanese persimmon, pear, apricot, quince, muskmelon, loquat, salak and santol.

*Oceania and Antarctica are not included in either (sorry fans of finger lime, Davidson's Plum and midyim). Some genuses are asymmetrically common to both worlds, like coconuts, rubus, blueberry, ribes, mulberry, haskap/honeysuckle.

http://www.actahort.org/books/863/863_39.htm

I'd be fascinated to know the findings of this Chinese study of lychees.

You have to be a member of the International Society for Horticultural Science or else articles cost $23 which I think is a rort...

Authors:     W.Q. She, X.H. Liu
Keywords:     Litchi chinensis, leaf cell tissue ratio, cold tolerance
DOI:     10.17660/ActaHortic.2010.863.39
Abstract:
The leaf cell structure and several physiological characteristics of 14 litchi (Litchi chinensis) cultivars were analyzed in this paper. The result showed that the cultivar with large leaf cell tissue ratio had strong cold resistance, reversely the cold resistance of cultivar with low leaf cell tissue ration was weak, therefore leaf cell tissue ratio may be taken as an index to detect cold tolerance of litchi; the contents of free proline, soluble sugar, and soluble protein, and the activity of superoxide dismutase (SOD) that were positively correlated with the leaf cell tissue ratio, can reflect differences in cold tolerance among various litchi cultivars, therefore, they could effectively be used as methods to determine the cold resistance of cultivars.