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Topics - huertasurbanas

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251
Tropical Fruit Discussion / guavas, water and low rate of germination
« on: July 20, 2013, 11:00:34 AM »
How do I know if I'm following good methods to germinate guava (Psidium guajava) and Pisidium cattleianum? I'm getting a low percentage of germination, every day I keep the substrate (compost or vermicompost) moist, but how wet should it be? The room temperature is between 19º C and 25º C.

How do I know if I'm doing overwater? Do I have to let the soil dry out sometimes?

I water with a bottle that strip droplets, but it is true that sometimes i am watering 2 times per day if I see the soil drying out.

The first batch of strawberry guava seeds planted in compost (vegetable) had high (for what I know) percentage of germination and survival (approx half), the second batch planted in vermicompost, only 12 of 60 in 4 months, and not likely to germinate any more, although I have noticed that some continue to appear after 4 months in vegetal compost.

On the guava (Psidium guajava), germinate only one sixth (15% approx) or less; maybe I am over watering? the compost will be bad? there was a batch planted in compost with many "little rocks" (with a few pebbles to put in the compost to aerate the soil) that was not very successful.

What would you do?

252
 I have here a plant, well developed shrub type (4 years old or so), which they said will be a pitanga without ribs (just round) maybe in the next spring will bear,

eugenia pitanga or eugenia uniflora? How to distinguish?

254
Tropical Fruit Discussion / When should I harvest a tamarillo?
« on: July 10, 2013, 01:23:39 PM »
When harvesting a tamarillo? I have to wait to take an entire red? this looks a bit violet, could it be a purple variety?

I have to wait for the skin to sag with finger pressure?



more photos

http://www.huertasurbanas.com/2013/07/10/tamarillo-madurando-cuando-estara-listo/

255
Tropical Fruit Discussion / does some fruit has b12 vitamin?
« on: July 08, 2013, 10:17:48 AM »
Just that, does some fruit has b12 vitamin?

256
Tropical Fruit Discussion / Winter fruiting trees?
« on: June 24, 2013, 05:18:45 PM »
Hello, I know few fruit trees which I can harvest fruits in winter, citrus,  here in my city we have oranges, lemons, tangerines and grapefruits that are harvested in winter, and also know the loquats.

What other fruit trees can give us fruit in winter? (tropical or not tropical ones)

257
Tropical Fruit Discussion / green tamarillo; will it ripe?
« on: June 18, 2013, 12:47:42 PM »
Hi, I think this fruit is 20 weeks old or so (and they say tamarillos are comercially ripe between 21 and 24 weeks from the anthesis)

The fruit fell of the tree today, the tree is 2 or 3 years old, only 1 of the 10 fruits hanging is currently maturing with  purple colours, the rest are still green, winter begins in three days and we have frost that have burned some leaves above.

What do you think, will this fallen tamarillo ripe outside the tree?




258
Hi! here is a big question to the forum:

With a friend we plan to create a "food forest" in approximately one acre.

The climate is subtropical with frost usually -2 º C but sometimes -6 º C and rarely -9 ° C. In summer temperatures sometimes reach 39 ° C, but the maximum is 34 ° C generally.

There are methods with water (ponds), rocks, buried organic matter to heat up and stuff to lower the incidence of frost damage, we may apply, perhaps pitanga could survive there (say that resists -7 º C), but would it yield right?

which trees would you choose? Would you use an anti-frost?
I thought of the following sub-tropical:

name (frost hardy)

feijoa (-11 º C)
guabiju (-10 º C or so)
pitanga (-7 º C)
cherry of the rio grande (-6 ° C?)
strawberry guava (-6 ° C?)
guava (-4 º C mmm ... maybe not possible)
setecapotes (-4 º C?)
Uvaia (? the same as pitanga?)
Ubajay (?)

These are all native fruit trees from the north of Argentina. Then we would plant also all traditional fruit: crítrics, peach, apricot, plum, pear, cherry, apple, etc..

That's 1/3 of what is important in a forest of food in relation to trees, then the other third would be perhaps trees with edible leaves do you know some?

the other third would be devoted to walnuts, almonds, chestnuts, etc.. What do you recommend?

259
Hi

big news... my little "ubajay" tree seems to be uvaia (eugenia pyriformis)?


http://s21.postimg.org/4f7hjxyx2/ubajay_SAM_2448.jpg

now we have photos of the mother,

This is the mother tree:




what do you think? ubajay or uvaia?










260
[fukuoka_farming] Mango experience
De: Harish Amur <harishamur@gmail.com>
  Para: fukuoka_farming@yahoogroups.com
  Fecha: 28/05/13 02:20
   
We have a few mango trees in the farm and we have tried to maintain them
naturally.

Typically the soil below the mango tree is ploughed(tilled). The dry litter
is sometime burnt too. Leaves of the mango tree dry due to this heat and
the tree goes a little dry for a season. Chemical and farm yard fertilizers
are provided. Drip irrigation also is practiced. When the tree flowers,
several pesticides/fungicides etc. are sprayed. On plucking the fruits, the
ripening is hastened by throwing calcium carbide tablets in the fruit heap.

We did none of the above. However we did spray 'jeevamruta' sparingly on
the flowers. Fruits were plucked and ripened by placing them in paddy straw
for a few days.

I have a tree at home, which is also growing naturally. In addition to not
doing anything, I dumped a lot of leaf litter and coconut fibre underneath
the tree. The mulch grew upto a foot and half. Red ants have formed a
nest(kind of thing) in the tree. Result: The mangoes grew to a size unseen
thus far. The size grew to almost 2 times the usual size. We had insects in
less than 5% of the fruits. We have no sightings of a white fibre deformity
inside the fruit (when cut). Of course a small percentage of the fruits did
rot. This tree was pruned due to an unavoidable reason. The pruned side has
been growing vigorously and the half tree yielded close to 150 fruits.
These are ratnagiri alfonso variety.

261
Hi, I have not yet built a greenhouse in my house, and I will not have to within 1 year or more, but I wanted to start several tropical fruit trees during autumn-winter (Argentina) and I think the lighting conditions in the room where I can leave the seedlings is not the best. Temp is between 19º C and 21º C.

I'm talking about seeds of:
Campomanesia lineatifolia (I tried direct sunlight here and some first leaves started to dry)
acca sellowiana (not too much problems with direct sun)
psidium cattleianum (no problems in direct sun)
psidium guajava
jaboticaba
etc.

Will these plants grow very poorly in the shade these 4 months till spring? They never take sun. Will they have an etiolated grow?

There are only four months to the end of the danger of frosts, when I can get them outside in september.

Should I try something else? Artificial lighting? Incandescent or fluorescent bulbs? Thanks in advance

262
Tropical Fruit Discussion / What fruits are the richest in iron?
« on: April 27, 2013, 05:57:52 PM »
Hi, just that, What fruits are the richest in iron?

263
Tropical Fruit Discussion / campomanesia lineatifolia frost resistant?
« on: April 24, 2013, 12:30:50 PM »
hi, I cant find anything on th net

does someone knows about its frost hardiness?

265
Today it was uploaded to the internet  by their own excellent author and international chef Laura Rosano, a Cookbook of Uruguay native fruits which explore the culinary possibilities of fruits like strawberry guava (red and yellow) Guaviyú, feijoa and pitanga.

The book, in spanish, can be purchased in print from their website: www.verdeoliva.org or downloaded in PDF format for computers.


More info and links:
http://www.huertasurbanas.com/2013/04/11/recetas-con-frutos-autoctonos

for instance:




266
Tropical Fruit Discussion / psidium cattleianum, yellow sprouts..
« on: April 09, 2013, 12:07:24 PM »
Hi, a man from Spain asked me for help, he has a strawberry guava tree:




lack of ferrum?

267
Tropical Fruit Discussion / When is it best to harvest a green guava?
« on: April 08, 2013, 11:42:45 AM »


Hello, I have 2 green guava trees (apparently green), one of them already has a fruit that seems ripe. There are only 3 fruits in total, so I want to try my first guava in the best possible condition.

They said it was a guava green skin with pink flesh, but I see that it is turning a bit yellow... should I wait? Or this color is already right?

Do I have to wait till it gives in to pressure from my fingers? (when ripe fingers sink into the fruit?)







268
Tropical Fruit Discussion / Tasting my first feijoa (acca sellowiana)!
« on: March 30, 2013, 09:09:20 PM »
It was great my surprise when I went out today in the late afternoon to the front yard to show the fruits of feijoa to my nephew and instead of being hanging like several months ago, were on the floor. Sign that had ripened and were ready to be devoured!




The "guayabo del país" (so-called "false guava", feijoa, etc.) is very important to me for several reasons: it was the first indigenous fruit I got, withstands -11 º C, so it can be cultivated in Junin even outside the urban environment ( in a field) and is grown commercially in several countries such as Australia or New Zealand, where they have produced varieties with highly desirable characteristics.

My feijoas (3 plants in garden soil and another ones in familiar's pots) were obtained from seed, so the flavor, size and other characteristics of the fruit are not identical, thus I could expect any surprises, even the fruit could be ugly.

In other countries they call it "pineaple guava" (feijoa), but I did not find any resemblance to the taste of pineapple in my fruits.


The size of the fruits of this plant is not the greatest, but not bad.
I cut it in half and prepared a spoon to remove the pulp:






It has several subtle seeds, pulp oxidizes rapidly changing color to light brown from crema.
Perfume is like a cross between kiwi, banana and lemon, the flavor seemed very similar to kiwi, sweet, sour, nice! It also reminded me a bit to red arazá (SG).



I was not disappointed at all. It's a strong flavor without being too, with moderate acidity but not leave you indifferent, say it's a bit less tasty than the red arazá (Psidium cattleianum), but it has nothing to envy. The pulp had a texture similar to apple perhaps, firm. Regarding arazá, has the advantage that the seeds of feijoa are very tiny.

I liked the taste more than the kiwi, but I will have to try other times to "get it" better, imagine a feijoa jam would be very appetizing, as in juices or other preparations, but mostly I'm excited by the fact that the fruit is good to eat naturally.

One more detail: the shell is not bad, has a more pronounced flavor and bitter taste very similar to the petals of the flower (which are delicious), but identical: more good news! Next time I'll try whole shell and all.








269




270
Hi, reading this from Uruguay:

http://www.guayubira.org.uy/monte/bibliografia/INIA-frutales5.pdf

It seems that they managed to do hybrids with them



("arazá rojo" = strawberry guava=psidium cattleianum | "arazá amarillo"=psidium cattleianum  var Lucidum)

Does someone has some experience about this? or, what do you think, can it be possible?

271
Tropical Fruit Discussion / jaboticabas with dried leaf tips
« on: March 14, 2013, 10:01:59 AM »
Hi, they are in full sun since 3 weeks, I am watering them every day (irrigation water without chlorine), I dont know what could be happening to them:

jaboticabas with dried leaf tips, both old and new leaves:



some of them are well:



some are not good at all:


272
Tropical Fruit Buy, Sell & Trade / seeds exchange
« on: March 12, 2013, 12:02:46 AM »
Hi, just opening a new page:

http://www.huertasurbanas.com/seeds-exchange

is this the right place in the forum?

274
Tropical Fruit Discussion / when to harvest strawberry guava?
« on: February 27, 2013, 02:58:25 PM »
Hello, I have a tree of Psidium cattleianum 3 years old this summer gave several fruits. When should I harvest them when they are soft or when they fall from the tree?




275
Hello, I bought several small plants to people of Misiones, Argentina, 1246 km from my hometown. By an error of the carrier, instead of 3 days were eight days without light, just a little light coming through the box, but almost nothing.

They came with good wet earth, that was no problem. The hardest hit are guabirobas and cherimoya;   the rest (for Guinness record!) survived quite well: Eugenia involucrata, pitanga, yerba mate, passion fruit, jaboticaba (with clear leaves are small, 10 months old ) and ubajay.

I hope that all will be saved, but I worry about the guabirobas, they are in a bad shape, and they are special because were extracted under a guabiroba tree of the jungle! These people that have sold me the plants  have their home in the middle of the jungle! (Atlantic Forest).

Any advice in particular? How many days should I keep them in the shade before giving sun?

one guabiroba:



the bigger one:




chirimoya (it has a sprout in the upper part, so I think it will live):



cerella (eugenia involucrata, cherry of rio grande); i think it's ok:



etc.

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