Re: [apple-crop] apple size

2016-01-10 Thread Jourdain Jean-Marc
My 2 cents. I wouldn’t be that confident on effect of reduce nitrogen on lowering size fruit. In our trials, with very good soil conditions, and good climate (well... usually), leading to nitrogen release from the soil, and nitrogen storage in wooden tissues : - We get a very slow impact of

Re: [apple-crop] apples and chemicals

2014-04-30 Thread Jourdain Jean-Marc
Hello all On our trials, effects of MCP are as you know, very impressive on firmness, less weight loss, shriveling, scald... without residues (to my knowledge) with few at no environmental impact... and so on... but at a cost. The one you now which is money, and an other one more insidious

Re: [apple-crop] record yields

2013-11-21 Thread Jourdain Jean-Marc
Hello In our conditions 'France South West' If we speak about an experimental apple plot with tremendous pollination, space and light, an easy variety, perfect row and tree spacing, a full vegetative hedgerow on M9 stock, on one specific easy year with plenty of work to thin at the best time,

Re: [apple-crop] Apple bins

2013-09-20 Thread Jourdain Jean-Marc
Both need care, after a few years you also have to repair bins plastic soles, it's less easy compared to wood. We had some years ago, off flavor in apple (specially industrial compote). Studies determined that wood treatments were involved. Wood treatments are done very early in the wood

Re: [apple-crop] Chemical regulations

2011-04-11 Thread Jourdain Jean-Marc
Huffman 519-738-1256 leslie.huff...@ontario.camailto:519-738-1256leslie.huff...@ontario.ca From: apple-crop-boun...@virtualorchard.net [mailto:apple-crop-boun...@virtualorchard.net] On Behalf Of Jourdain Jean-Marc Sent: April 7, 2011 4:53 AM To: Apple-crop

[apple-crop] Chemical regulations

2011-04-07 Thread Jourdain Jean-Marc
Hello all I have been told that in Canada in case you want to purchase a phytosanitary compound, you need to give the retailer a paper like a prescription. Is it right, does someone can describe me and the list, the situation... Our growers are tempted to go this way thinking to share

Re: [apple-crop] Pommier, Le Mur Fruiter

2011-04-01 Thread Jourdain Jean-Marc
Hi Maurice To my knowledge there is no translation of the book. Since the concept was created in our orchards here in Lanxade Centre (near Bergerac South West of France), I shall be able to answer all questions. The first rows of this training system were planted in 1995 for better access to

Re: [apple-crop] Manually dropping fruit from young trees

2011-03-14 Thread Jourdain Jean-Marc
Hi Rye We are working hard on these topics. You will find here after a link to a pdf file (sorry French speaking) were you can see a picture of a Darwin system working at full bloom a short English summary, and some tables that you can understand...

RE: Apple-Crop: Mystery disease?

2010-12-06 Thread Jourdain Jean-Marc
Hi Claude I agree with Dave on dapple apple viroïd hypothesis You will find here after a link on the description of the disease in our book on Viruses diseases of fruit trees. You are lucky its one of very few books that were published in English...!! See in the last page the table with variety

RE: Apple-Crop: Patulin in Apple

2010-12-06 Thread Jourdain Jean-Marc
Hi Jose In very few words... from my basic knowledge For apple the main source of patulin is penicillium fungi mould in our conditions (western Europe), this could be different in other climates. Other fungi are producing toxins... To avoid the occurrence of penicillium mould on fruit, in my

RE: Apple-Crop: Tree Row volume

2010-10-07 Thread Jourdain Jean-Marc
Hello all, two more cents Rootstock has a major effect on the ability for a tree to bear a specific ratio of commercial fruit per cube meter of canopy. I agree that the leaves of the variety need to synthesize the same amount of carbohydrates per fruit. But would it be possible that the

Apple-Crop: RE: Experience with cold temps post bloom

2010-05-11 Thread Jourdain Jean-Marc
Hello In our conditions such conditions (temps x duration) would only suggest to me the probability of frost rings (russet rings at the stem surroundings) you keep the fruit load more or less and you have a big job to do to carefully hand thin. We are facing cool temperatures too here,

Apple-Crop: Different sized peach fruitlets- Does size matter?

2010-05-03 Thread Jourdain Jean-Marc
Hi all. In early 80's I made a study about determinism of peach fruit size and fruit quality with the scope of giving some clever briefing to peach pruners and hand thinners. At that time we were not that trapped in computers, we were more at the fields trials but our filing (paper folders) was

RE: Apple-Crop: Club varieties

2009-12-17 Thread Jourdain Jean-Marc
Hello to all apple croppers. Here in France we are playing with club varieties from more than ten years now. Some are great success, some known as failure, some developed specifically for organic farming and short distance sales... Some are nursery driven, some are growers driven with grower

RE: Apple-Crop: Real or not?

2009-10-05 Thread Jourdain Jean-Marc
Hello all. I am used with chimeric mutations forward and backward on red del, gala strains... but never saw one for golden. Never heard about red mutants from Golden, it drives my opinion to this being a fake, but I would be pleased if this mutant would be from real life, and would be pleased

RE: Apple-Crop: Early bearing

2009-03-11 Thread Jourdain Jean-Marc
Hello In our area we are used with making fruit from vigour, we try not to use chemicals or girdling, or root cuts, to lower the global shoot growth. This we think would drive the orchard to less potential. In most of the situation, no pruning (at least till fruit set comes), rope bending, low

RE: Apple-Crop: MARK vs Mac-9 root stock

2008-11-20 Thread Jourdain Jean-Marc
Hello to all list members. We participated on early trial on Mac - Mark with the same exact result described by Don C. Elfving. I will not add more to this description. However - the extent of union disorder was dependant on the variety, some much more susceptible compare to others. - we are

RE: Apple-Crop: Damage in Washington California

2008-04-28 Thread Jourdain Jean-Marc
France South West Dordogne valley Bergerac We had a busy night on Easter Monday. We begun all available protection systems at 2 am ending at 10 am (-3°Celcius at minimum, not that bad, but 8 hour long below zero). Short report at this moment (not all damage has appeared yet !): 8 ha with

RE: Apple-Crop: One sexy apple

2007-10-19 Thread Jourdain Jean-Marc
Hello from South West of France Some personal thoughts on this variety. This is an interesting story in France, since the rights are owned by a grower organisation in an attempt to keep added value closer from the growers. I think this is the first time that a club organisation is held without

RE: Apple-Crop: Apple Harvest

2007-09-14 Thread Jourdain Jean-Marc
Hi Debbie Many thanks for information, I had a direct email from Ken Silsby who could not post directly to apple crop group ( why not?). I downloaded his and G. Blanpied paper on Cornell Bulletin 221. Nice summary of a large work on all aspects of harvest date. Here after the email of K.

RE: Apple-Crop: Apple Harvest

2007-09-13 Thread Jourdain Jean-Marc
Hi from South West of France I could have written almost exactly the same words for our situation. Amazing precocity here (William's Bartlett harvested end of July... never seen). Some more points : For what concerns colour, we have this year very beautiful reds, strains of Gala wonderful,

RE: Apple-Crop: sheltered apple trees

2007-08-07 Thread Jourdain Jean-Marc
Hello all We had lot of innovations for hail protection design in our area (south west of France)ten years ago, including row protection vs entire protection, white nets vs black or green nets, classical Italian fixed structures vs elastic wires. We did lot of measurements. The only climatic