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Photo Information
Copyright: corinne Cocky (coquelicot79) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 565 W: 218 N: 1915] (8126)
Genre: Places
Medium: Color
Date Taken: 2007-11-01
Categories: Daily Life, Nature, Decisive Moment, Mood
Camera: Panasonic Lumix DMC-FZ7
Photo Version: Original Version
Date Submitted: 2007-11-01 11:54
Viewed: 423
Points: 26
[Note Guidelines] Photographer's Note [French]
A beautiful day of autumn in Charentes-Poitou, this Sunday. A sky of an intense blue which emphasizes the varied colors of the sheets which took these marvellous colours finally. I didn't understand why I saw all your photographs with these autumnal ornaments and here not, anything or almost. And there of a blow in one week it is the festival!

Then as I'm curious, I sought to know why? And here that I found, I share my information with you, we will play "the small chemist", nothing to fear, they isn't complicated, not, assuredly since I understood ;ODD

Why the sheets have colors varied in autumn?

Contrary to the general belief, the phenomenon of the autumnal colouring of the sheets is not caused by the frost. It would be rather ascribable to the reduction length of the days (photoperiod). The cold nights and the short days stimulate the production of ethylene, a hormone responsible for the fall of the sheets. One period of dryness at the end of the summer can also hasten colouring.

With the autumn, a cork plug blocks little by little the channels transporting food towards the sheet. This one survives some time by digesting its own reserves. When the essential minerals are not available any more to regenerate chlorophyl (green pigments), it disappears leaving its place with yellow pigments (carotenes and xanthophylls) normally masked by the green.

In the case of maple for our friends of the North-American continent and especially of Canada with their fabulous maple syrup, the cork plug doesn't prevent the crude sap completely from penetrating in the sheets. It results from it an accumulation forced from sugar in their fabrics causing the formation of coloured chemical compounds: phenols and anthocyanes. The latter, a very marked red, will change color according to the acidity of the medium: sharp red in acid and purple ground in alkaline ground. The formation of this pigment is supported by the followed fresh nights of sunny days. The percentage of chlorophyl (green) decreases little by little, revealing carotenes (yellow). This is why one can see sheets of maples tinting green simultaneously, of yellow and red.

One can observe this fantastic pallet of colors until late in October. But the sheets are in general put to fall, according to areas', as of the end September. This period of fall of the sheets is spread out over at least a month, sometimes more. This exceptional phenomenon occurs only in the countries of the world which are in North, where the winter doesn't allow the survival of certain plants under conditions really very cold. Only conifers preserve their ornaments, their needles being naturally protected from the climate by a layer of wax which insulates them. They also contain suitable substances which preserve them and nourish them throughout the winter season.

A downpour, a strong gale or even little breeze at the end of the autumn and the spectacle are finished! Then let us benefit from these delicious moments to walk, warmly equipped if it's needed but that also helps us to spend the long moments of winter, locked up by the cold.
ttreen, Helkoryo, tjutjut, yamataraja, guinness_fr, JohnTulip has marked this note useful
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To Beger: Brrr de la neige,coquelicot79 1 11-06 14:35
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Critiques [Translate]

  • Great 
  • Danert Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 437 W: 18 N: 804] (4076)
  • [2007-11-01 12:10]

Bonjour Corinne ,
Je suis content de voir que tu profiteras un moment de ces couleurs d'automne . J'aime beaucoup ta composition et le cadre noir fait bien ressortir les autres couleurs sur ce ciel magnifique . Ici malheureusement il ne reste rien, terminé . Bonne fin de soirée à toi .
Daniel

  • Great 
  • ttreen Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1407 W: 130 N: 3826] (15900)
  • [2007-11-01 14:11]

Perfect blue autumn sky.. Love the angle of the main maple leaf.. wonderful frame! :)

Tricia

enjoy your sons Birthday even if its by phone! :) It is also a day us Mom's need to celebrate!

hello
bonne question, bonne réponse, belle illustration, le cadre fait bien ressortir cet échantillon de couleurs automnales
bonne soirée
jo

Hello Corinne

What a superb capture, really sharp image with lots of detail and wonderful colours. Your framing is perfect and your notes are very interesting.

TFS regards Helen

Bonsoir Corinne :)
Ah, moi ce sont les magasins, toi tu profites de la nature, tu as bien raison ! Joli feuillage aux doux tons mordorés, beau POV et chouette cadre, comme d'hab ... le noir met superbement en valeur ce roux ;o)
Note très intéressante, bravo pour la recherche, grande curieuse :o)
Continues à nous enchanter ma douce amie !
Gros bisous
Marylou

Hello my dear friend Corinne,

It's nice to experience four seasons and having beautiful on each of them . . I never lived in this environment, but I feel the ambient from seeing the pictures and stories about it . .
This is a beautiful picture of showing autumn symbol with clear blue sky as BG . .
Very well done . .

Tfs,
Tjutjut

Bonsoir Corinne
Des couleurs québécoise en terre de France,quel délice! Malheureusement, ici, le festival est terminé et les arbres sont à toute fin pratique dénudés sauf exception. Belle composition que clin d'oeil végétal sur fond de ciel bleu poitevin d'où sont issus plusieurs de nos ancêtres québécois. Note très intéressante.
Merci de nous faire connaître ton coin de pays. Merci également pour avoir visité ma galerie et d'avoir laissé tous ces mots gentils.
Serge

Bonjour corinne

De tres belles couleurs, ce beau orange sur ce bleu magnifique attire le regard

Merci du partage

Olivier

  • Great 
  • Josine Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 922 W: 21 N: 652] (4069)
  • [2007-11-02 14:10]

Helo Corine
Superb compo!
Good exposure and great framework.
Bye
Josine

Tres joliet foto du l'automne
Ciao Corinne

  • Great 
  • Ivan Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 403 W: 112 N: 270] (3854)
  • [2007-11-05 3:11]

Bonjour Corinne,
Je vois cette photo comme un fenêtre sur l'extérieur. Sous nos latitudes cette coloration embellie la nature avant le repos hivernal, il faut en profiter. Ton encadrement (tu dis entourage n'est-ce-pas ?) donne un aspect intéressant et un fort contraste pertinent.
Ivan

  • Great 
  • Beger Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3305 W: 787 N: 4423] (19894)
  • [2007-11-05 16:09]
  • [+]

Bonsoir Corinne,
Voilà un beau clin d'oeil à l'automne et à son festival des couleurs. Excellente présentation sur fond de ciel bleu. On y sent le vent et le froid un brin piquant. Et quelle leçon de science de la nature bien vulgarisée que cette note!

Ici, on a eu un peu de neige hier, un Noël tropical égaré dans le nord. S'il restait encore quelques braves feuilles au bout des branche,là c'est terminé!
Bravo! Annie

coucou COCO
ben alors la didith elle a loupé un si joli tableau, oh non alors!!
bravo poulette c'est super, ces belles couleurs nettes et jolies, avec ce cadre qui m'est bien en valeur, quand a la note!!!n'en parlons pas!!! me voilà devenue instruite!!!
merci puce, bisous++
didith

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