chilling requirements (forum)

asder starts with ...
As warming affects traditional fruit growing areas there will be a need for artificial ,man made, "chill". Recently I read that certain oils and also thiocyanates have this property if applied to dormant trees. Oddly the fugicide, Ziram, is a thiocyanate . I speculate whether it may be of use for "chilling".

Time: 17th July 2012 9:27am

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About the Author asder
 
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Brendan says...
Are you talking about 'global warming' asder? Not happening up here mate, two weeks ago we had -1
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Time: 18th July 2012 9:05am

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Original Post was last edited: 18th July 2012 9:07am

About the Author Brendan
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BJ says...
Globla warming is a poor name. Its more about climate instability. Warming most aptly refers to the trend at the poles, which melts ice, which will cool the oceans. In our lifetimes it will only mean increasingly unpredictable weather. In a few thousand years the warming will have ended and the only place to be will be the true tropics. We've got a few serious man made hurdles to jump before we get to that stage though.

Time: 18th July 2012 10:02am

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About the Author Theposterformerlyknownas
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asder says...
You are right --""global warming"" SOUNDS MUCH NICER . And that's the idea.

Time: 18th July 2012 11:40am

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Julie says...
It doesn't sound so nice if you live in hot,dry Western Australia!

Time: 19th July 2012 1:01am

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asder says...
As Sarah Pallin explained ,global warming is just "God hugging us a little closer".

Time: 19th July 2012 10:12am

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Mike says...
Maybe we should get out of the kitchen.
In the tropics it is upland winter minimums that have changed most.Frost frequency on the Atherton Tablelands being a stark example.It is uneven and erratic as BJ suggests but 0.7c increase can mean more for some places with poleward migration of systems.
Greater heat means more net evaporation and rainfall but will it fall in the right places.Also this is one of the feedback loops thaT BJ alluded to.More cloud means a little extra shading.The big question is how fast will it get warmer, and will Queensland remain the planets only island of denial in an ocean of acceptance?

Time: 19th July 2012 10:23am

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amanda says...
Well, if you are going to spray stuff around, outside of it's gazetted use, then you should check the MSDS at least:
http://www.bayercropscience.com.au/resources/uploads/msds/file7244.pdf

I think I will just plant to suit my climate thanks ;-)

Time: 19th July 2012 10:59am

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About the Author amanda19
Geraldton. 400km north of Perth.
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asder says...
One of the cleverer statements I've read was from a climatologist who said that records are broken every year for temp. minimums and maximums. However, if you are breaking 10 times as many records for maximums as for minimums ,as was the case last year,then you can draw a valid conclusion on a trend.

Time: 19th July 2012 2:11pm

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Juneli says...
With regard to adding chill hours I read on another forum (can't remember where) that if you spray the leaves in Autumn at monthly intervals with potassium nitrate (KNO3) you can add an extra 100 hours of chill to the tree.

Time: 12th August 2012 12:12pm

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mythbuster says...
is the product called bull dust by any chance Juneli?

Time: 12th August 2012 2:34pm

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Mike says...
It is possible Juneli.Longans are becoming popular in Java as they can be induced to fruit in a climate too warm to induce flowering.In the picture the longan was induced to fruit in the javan lowlands by potassium chlorate according to the grower but I suspect it was potassium nitrate.I have never heard about its use on stonefruit but it is plausable.
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Time: 12th August 2012 5:08pm

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Juneli says...
Mythbuster, yes it does seem strange. Apparently this knowledge was published in a 1904 gardening book. The KNO3 doesn't cause growth but deep greening of the leaves and the nutrients are absorbed into the bud wood producing a much tighter bloom at Spring. If I can get my hands on some I hope to experiment on my stone fruit.

Time: 13th August 2012 6:22pm

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About the Author Juneli
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Mike says...
Juneli in SE Asian longans it is used to stimulate 'lazy' trees,give high priced out of season crops and combat biennial fruiting.

Time: 13th August 2012 6:28pm

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Juneli says...
Wow Mike! Thanks for your imput. Always impressed by the knowledge you share on this forum


Time: 14th August 2012 8:22am

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About the Author Juneli
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Brendan says...
Hi Juneli, I notice you're from Mackay too. I live at Yakapari, about 35kms to the north of Mackay.

I also notice you have a low user ID, so you've been on the forum for a while?

Like you, I also like Mike's input to this forum :-)

If you like, you can contact me on: bitquicker@bigpond.com Cheers.

Time: 15th August 2012 9:56am

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Original Post was last edited: 15th August 2012 9:57am

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Juneli says...
Hi Brendan! Yes I joined up a couple of years ago. I come and view the site often but don' have much knowledge to add I'm afraid. We are almost neighbours as I live at Habana 20 k's north of Mackay.

Time: 17th August 2012 12:04pm

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