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Messages - jcaldeira

Pages: [1] 2 3 ... 27
1
The common name for a wild seedling that spouts on its own is a'volunteer.'

2
Rainbow is the only GMO papaya. Yes it can cross pollinate with any other papaya and contaminate it. This is only the case if you're growing in vicinity of commercial GMO rainbow papaya fields. To get uncontaminated papayas you need to grow minimum 1/2 mile from any GMO field because papaya pollen is wind borne. Seeds can be tested for GMO contamination.
Monsanto does not have any fields or operations on this island. They have been effectively blocked out by legislation here. They do have fields though on some of the other islands. Anyway, Monsanto has nothing to do with GMO papaya. For that we have to "thank" our stupid university.

There's a lot of GM papaya grown on your island Oscar, and probably other GM crops as well.

3
The documentary  "David vs Monsanto" tells the story of Monsanto efforts to crush an innocent Canadian farmer whose crops got contaminated by GMO patented DNA blown in by the wind.


The truth is that Monsanto has never sued anyone for accidental use of their patented seeds.
http://www.monsanto.com/newsviews/pages/gm-seed-accidentally-in-farmers-fields.aspx


Here's the real story of 'David (Percy Schmeiser) vs Monsanto':

Monsanto v. Schmeiser
"In 1997, Percy Schmeiser found Monsanto's genetically modified “Roundup Ready Canola” plants growing near his farm. He testified that he sprayed his nearby field and found that much of the crop survived, meaning it was also Roundup Ready.  He testified that he then harvested that crop, saved it separately from his other harvest, and intentionally planted it in 1998.  Monsanto approached him to pay a license fee for using Monsanto's patented technology without a license. Schmeiser refused, claiming that the actual seed was his because it was grown on his land, and so Monsanto sued Schmeiser for patent infringement on August 6, 1998.

"For the next several years, the case traveled through the Canadian court system. Meanwhile, Schmeiser became a popular figure among those opposed to genetic engineering. He accepted speaking engagements around the world. Ultimately, a Supreme Court 5-4 ruling found in favor of Monsanto, because Monsanto owned a valid patent and Schmeiser violated the patent by intentionally replanting the Roundup Ready seed that he had saved."
https://en.wikipedia.org/wiki/Percy_Schmeiser

4
I believe there are some of the small hawaiian types that are not GMO.  Am I wrong about that? 

Oscar sells sunrise solo, sunset solo, and waimanolo solo and I don't think he is down with GMO.
Only rainbow solo is GMO. The other types are not.

Does Rainbow Solo cross-pollinate naturally with other papaya in Hawaii?

Hawaii is one of the GMO seed capitals of the world, growing many GMO seeds for the mainland and world by Monsanto and others.  There must be a lot of GM pollen in the air, too.

5
Tropical Fruit Discussion / Re: Samoan coconut trees
« on: June 25, 2015, 06:16:00 PM »
Here's a 3 year old Malaysian Dwarf with its first fruit at waist height.  It fruited despite the rhinoceros beetle damage.


6
I've not heard of it, but it wouldn't surprise me.

One of my beekeeping friends is one of Fiji's most productive pineapple farmers.  I'll ask him next time I talk with him, but that may be month or so from now.

7
Tropical Fruit Discussion / Re: Little update from Thailand
« on: June 23, 2015, 03:00:32 PM »
Nice simple shadehouse design.  And a nice report.  Thanks for sharing.

8
Tropical Fruit Discussion / Re: Samoan coconut trees
« on: June 21, 2015, 04:27:28 PM »
The Fiji Dwarf is a good juice coconut.  It's most admirable quality is that it bears fruit in about 5 years, when the fruit will less than 2 meters off the ground.  It's oil content is lower than many other varieties so it is mostly a backyard tree and not grown commercially that I'm aware of.   The Malaysian Dwarf is another popular variety here. It has a yellow fruit.

The Fijian name for this coconut, 'Niu Leka' actually means 'Coconut Short' but they eventually grow quite tall, 15 meters or more.   Like most coconut trees, the trunk attains it's full girth before putting on significant vertical growth.

This is one of my 6 year old trees:

9
Citrus General Discussion / Re: Free Clean Water
« on: June 18, 2015, 03:26:36 PM »
Plants certainly do grow faster with rain water.  I'm not sure if that's because its more acidic or lacks the minerals present in most ground water.

Millet, do you have a mosquito problem with so many open barrels of water?   

I use a sealed 5,000 liter tank that captures water from roof guttering.  It has a homemade first-flow diverter so the water is also potable.


10
Can't say about 10b, but in Fiji the purple passion fruit are much sweeter than the yellow ones.  The sugar:acid ratio on the purples allow eating out of hand a joy when in the field.  The yellow ones here don't develop the sugars as well, so are used for juice.

11
Temperate Fruit Discussion / Re: apples anyone
« on: June 17, 2015, 03:06:15 PM »
I had the pleasure of working on an apple farming development project in Ukraine after the Soviet Union collapse.  Here are a few photos of their propagation methods.

They were using dwarfing rootstocks, mostly M26 and M9.  In the spring, they grafted onto bare sticks of rootstock - no roots.  The roots would develop at the same time the graft wound heals.

When planting, the grafted rootstocks were prepared with a rooting hormone.  The wet rootstocks were also dipped in water-absorbent crystals to prevent drying out while roots develop.

Planting was performed by first plowing the field.  Then two guys would make wet holes and several women following would insert the grafted sticks. Other women would tamp down the soil and seal the hole.

 

The trees were trained in a columnar fashion.
 

The mature trees were planted less than two meters apart.


I don't recall the varieties they were planting, but the graft wood was mostly smuggled in from Poland and no royalties paid.

12
Tropical Fruit Discussion / Re: Our Fruitcation to Homestead
« on: June 09, 2015, 02:11:17 AM »
Geosulcata, thank you for the wonderful trip report.   I envy your access to such an opportunity, and applaud you for taking advantage of it!

John

13
Citrus General Discussion / Re: OJ Consumption In The USA
« on: June 06, 2015, 10:36:41 PM »
"In the United States, fresh flavor is paramount, so juice makers include a compound called ethyl butyrate in the flavor packs. This compound isn’t an artificial flavor: It occurs naturally in fresh-squeezed orange juice as an aroma, but because it’s volatile, much of it is driven off during pasteurization and deaeration. Adding more ethyl butyrate to the juice after these processes actually restores the impression of freshness."      - Cooks Illustrated magazine

The entire food industry is in a difficult market to make money.  The U.S. population is growing at less than 1% annually, and overall per-person caloric intake remains the same, so the total U.S. food and beverage market is only growing 1% per year.  Any significant growth means capturing market share from other food and beverage producers.   A tough nut to crack.




14
Tropical Fruit Discussion / Re: Timing outplanting for root health
« on: June 06, 2015, 04:11:20 PM »
I share the concerns about poor taproot development if a fruit tree is left in a bag or pot too long.  The taproot winds around the bottom of the pot.   Avocados, especially, perform much better if planted out early.   More than half by mango and avocado grafting is done in the field now to allow better taproot development.   

The ideal time for planting out is the beginning of the rainy season, but unfortunately some fruits' seeds are only available at an inconvenient time of year.

A good taproot is one reason I prefer seedlings and grafted seedlings over air layering and cuttings.  Air layering and cuttings don't seem to have the genetic programming to send down a taproot.

15
Tropical Fruit Discussion / Re: Mango topworking without water shoots
« on: June 01, 2015, 04:35:08 PM »
I've top-worked a couple of trees on my farm without waiting for new shoots.  My success was around 30% on approximately 20 grafts.  Here's how we did it:

We  cut the scion the same as we would for a cleft/wedge graft.  On the rootstock, we made two vertical cuts through the bark.  We lifted the bark, inserted the scion, and wrapped the wound as tight as we could with old tire rubber.

 

In hindsight, to improve our success, we should have put three or four scions on the above branch, then wrapped.

A similar method was good when the rootstocks of my young trees were too thick for cleft grafting.



I prefer cleft grafting in part because they are so strong.  Birds can land on them without concern.  The bark/veneer grafts must be wrapped well to prevent accidental movement of the scion.

As with any mango grafting, for best results the rootstock must be in a growth flush and the scion buds swollen, ready for their growth spurt.

16
Tropical Fruit Discussion / Re: Hand Pruner Preference
« on: May 29, 2015, 03:14:34 AM »
fiskers that I sharpened to razor sharp

How do you sharpen your Fiskers?

17
Tropical Fruit Discussion / Re: Caring for new grafts
« on: May 28, 2015, 05:50:08 PM »
As Fyliu suggests, don't remove the parafilm at all.  It protects the wound, conserves moisture, won't strangle the branch, and will eventually fall off on it's own.

Shade cloth would be nice.  Not total darkness.

18
All of my papaya during the past two years have been from seed harvested from my own fruit.  Despite my having several varieties growing, they mostly seem identical to the mother tree's fruit.  This suggests most are self-pollinated from hermaphrodite plants with relatively little crossover from tree to tree, unless visiting insects have a variety-specific preference.

19
Ouch!  I hope those spam notes don't need to be deleted one by one.

The next time someone wants to add another forum such as the Tropical Vegetable Forum or Temperate Fruits and Orchards, it would be nice if some of those advocates also volunteered to serve as moderators.

20
Interesting thread.

Not really a fruit, but when I think of edible plants from the Western Cape, the Rooibos tea plant comes to mind.  People would drink it with dry bread.

21
Tropical Fruit Discussion / Re: One year mango grafts
« on: May 15, 2015, 04:08:16 PM »
I would simply let the young trees drop their fruit naturally.

22
Tropical Fruit Discussion / Re: Crossing sugar cane & making seed?
« on: May 10, 2015, 06:51:31 PM »
Almost all sugar cane in Fiji flowers when mature.   I've never heard of starting cane from seeds, though, even accidentally.



There are several varieties of cane in Fiji and I'm unaware of any cross-breeding at all.


23
After 10 weeks, I would cut off everything above the graft, so the plant 'thinks' the graft has the apical/terminal bud.  The graft wounds should have healed enough in 10 weeks.  My thinking is that there are too many choices of where the plant should grow and the graft needs to be made the most appealing place to grow.

24
Citrus General Discussion / Re: Maturity of Citrus Fruit
« on: May 06, 2015, 04:06:41 PM »
How is acid content easily measured? 

I have a refractometer for the sugar, but would also like to measure acid.

25
West Indian Lime and Guava, but both are small trees so easy to pick anyway.  Mango takes some bruising, but still okay if eaten soon.  Apples, of course.

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