There was a concept of 'node count' promulgated on the old Gardenweb and Forumup forums that basically stated that a grafted scion/budwood, or a cutting, 'remembers' its maturity and will express sexual maturity depending on this node count.  It's my understanding that a 'node' is essentially equivalent to a growth flush.  Seems reasonable, but I think there's more going on.

It's clear that grafted citrus and branch cuttings flower sooner than their seedling brethren that are focused on vertical growth to capture sunlight and root growth to ensure survival.  However:
 
(1) A farmer near me has an old seedling lime tree that was broken off near the soil line during a cyclone two years ago.  The root suckers are now blooming in abundance.  The root suckers should have a single digit node count, yet mature at 24 months.

(2) There is evidence that flowering can be accelerated by grafting a young seedling scion onto a mature tree, so the mature tree pushes the scion a lot.  Thus it seems flowering is also influenced by the rootstock.

(3) I've had some 10 month old rough lemon seedlings bloom after being stressed to near death with lack of water, while the better-cared for seedlings did not.

Is it really node count, or is flowering a much more complex event?

I don't know what to believe about orange juice any more.  There's been a lot of bad press about the high sugar content in recent years.

Eat and drink everything in moderation seems good advice.  Plenty of variety in our diets allows our body to absorb a wide variety of the nutrients it needs.

Great resources, Jackfruitwhisperer69!  Thanks for sharing.

They seem like varieties I'd like to try.  They need to find better names for them, though. 

The yellow leaf vein problem may be due to low phosphorus.  I had a similar problem on part of my farm and it turned out to be low phosphorus, possibly made unavailable to the plants due to high copper or some other mineral.

I reported my problem in this thread (see reply #30):
http://tropicalfruitforum.com/index.php?topic=9236

Most of my passionfruit are growing up in the trees, but some on a trellis and fences.  I cut back the entire vine after approximately 2 years, after production has fallen, leaving a meter or two of the old vine above ground level and pulling off all the dead vines that I can.  If the dead vines are not cut out, some of the fruit get caught in it and are prevented from falling.  It's nearly impossible to remove the dead vines without cutting the whole vine back. 

Here's a trellis before and after pruning:
Before


After

Sounds great, but how do you combat the public relations problems due to people thinking they will grow a third arm out of their forehead from eating those citrus?

There is something in human nature that tells us to be cautious of change, which overall is probably good.    However, technophobia has been a problem since the dawn of the industrial revolution, with almost every new significant invention having detractors.   Truth becomes more apparent with time, experience and education.

Just returned from the Carrollton supermarket. 

Rambutan, longan, cherimoya and persimmon in hand!  I also saw (frozen) durian, various guavas, dragon fruit etc.

Good deal.

Glad you were successful.  That Carrollton market often has good black sapote.

Turgut, how are you ventilating the greenhouse?  That's a lot of space to keep from overheating.

Canopy?  My grafted citrus mostly look like each branch has a mind of its own.  I only prune to keep branches off the ground, and rubbing off rootstock suckers.  Once in a while I cut down a water shoot to encourage branching, but most I leave alone.

We had some rain recently in Fiji and the citrus are blooming.  I now have bloom on Valencia and Mandarin.  The only citrus not blooming are grapefruit and pomelo.

Dallas Farmers Market has local and Mexican fruits.  http://dallasfarmersmarket.org/

Most Hispanic and Asian supermarkets have seasonal tropical fruits.  One of my favorites: Asian Super Market at 3040 N Josey Ln, Carrollton.

Ants often suggest mealy bugs, aphids or some other pest that they feed on.

I don't know the answer, but suggest trimming off the dead/dying wood and carefully observe the remaining tree. 

This interesting work was done on tomatoes.
http://phys.org/news/2014-11-nature-genetic-toolkit-maximum-crop.html

Interesting.  Thanks for sharing.

From the article:
"In tomatoes and all other flowering plants, the balance between vegetative growth and flowers is controlled by a pair of opposing hormones, called florigen and anti-florigen. Prior work by Lippman and Israeli colleagues showed that a mutation in florigen can shift the balance between vegetative growth and flowering, modifying plant architecture in a way that increases yield."