My in ground 4 year old grafted Dekopon tree set 15 fruit this year. Most all were set on the same side of the tree causing the tree to lean hard in that direction. It was necessary to support the tree to return it to standing position. The fruit are huge, and presently beginning to turn orange. The temperatures in the greenhouse has been running 75+- day, and 50 night. It produced one fruit last year that I picked to soon. The taste was good, but clearly not ready. I'lll wait until at least January before tring this years crop. I also have a 4 year old Dekopon growing in a 13 gallon air root pruning container. Its fruit started to color up about a month ago. My understanding is that a Dekopon tree needs to be thinned out to allow sunlight to penetrate throughout the foliage, in a manner much like a peach tree in order for the tree to continue to well. I'm not exactly sure what that means, but I guess I'll find out. My Ponkan tree is absolutely loaded, with too many fruit to count. Unfortunately, because ponkan is an alternate bearing variety, next year being the off year should only provide a fruit or two. I've read that if the on year crop is thinned way back so that the tree does not expand so much energy, then one can expect a crop on the following off year. However, I decided to take the big crop this year, and live with what happens in 2017.. This is the first year my in ground Valentine Pummelo set fruit (just 2) so I'm looking forward to a much larger crop next year. I also have an older Valentine growing in a 20 gallon container that stated fruiting several years back. If you never tasted a Valentine Pummelo your really missing something. Lastly, LaCasaVerde, tell Darkman Millet said to get over to this web site and at least say hello. Tom, Darkman, and I all attended the Southeast Citrus Expo together the year it was held in Alabama, which gave us an opportunity to know each other. - Millet
Happy Thanksgiving!
Im in off year for the Ponkan with 2 fruit. It is alternate bearing. I watched a video on pruning the Dekopon the other night and came across an interesting side note. It appears the Dekopons fruit quality is directly connected to the amount of rain/irrigation ts receives during the summer. I cross referenced this found a correlation to the fruits sweetness. I have a sandy soil with water table at 3-4 feet. The root system must then have a constant supply of water if it goes down that far... Id say something is working because the fruit Isampled the other day was outstanding. Ill include some pics next post.
Im also going to learn about this Valentine Pummelo you mentioned. I would definitely add one to the collection if it is as good as you say. Ive never tasted one. Are they sweet? Ive noticed in other posts that you top height was 11 feet in the greenhouse. Im assuming your planting dwarf citrus?
I just finished mine here. Built it myself over a year. It is LaCasaVerde by name and is an Orangarie by design 16 feet peak gable with both sides completly roll up. When closed ventilated with intake and exhaust to pull all are at one min interval. Unlike others, Ive designed it to be flooded by 1000 gallons of water, not for irrigation but for evening heat. Ive found in another greenhouse I built that 3 ibc water totes heated in the greenhouse then released on the floor provided 5-8 degrees of heat rise but more importanlty provided it uniformly accross the greenhouse andacted as a temperature curve buffer dramatically slowing heat loss at night. The the next day the solar gain in the green house is absorbed faster into the ground and released the following night. This process is only done during extreme cold weather events usually only lasting 3-4 days here at most. Once warmer air moves in the side walls can be raised and humidity released allowing the greenhouse to dry out again. In this one I have inground Hamlin,Blood, 2 Deko and a Navel/ As well as potted Bananas, Cherries and Papayas. Ive found that the high wall design is much more efficient and practical as my citrus are not dwarfs and will fill it in a few years.
I will pass on the invite to Darkman. He did mention that you both were in Alabama during our conversation. Reminds me that I need to trade a Dekopon fruit fro one of his xie shan as Id like to taste. My xie shan is too you still.
Also - you mentioned your Dekopon leaning. I stake and tie off all my citrus for the first few years. This way they dont lean when laden with fruit initially. Ive found that after a kimbrough I has started leaning one direction with fruit, the root system contiued to grow compensating. When I did decide to stake it and tie of the trunk it was more difficult to correct.