Cylindrical article for controlling growth of tree and...

A - Human Necessities – 01 – G

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A01G 13/02 (2006.01) A01G 13/00 (2006.01) A01G 13/10 (2006.01)

Patent

CA 2372012

The present invention relates to a cylindrical article for controlling the growth of a tree, and a method for controlling the growth of a tree. There are provided a cylindrical article for controlling the growth of a tree characterized in that it is made of a material which cuts off red rays having a wavelength of 560 to 700 nm with a maximum cutting percentage of 30 to 50 % and 100 % of ultraviolet rays having a wavelength of 400 nm or less, a cylindrical article for controlling the growth of a tree characterized in that it is made of a material which cuts off infrared rays having a wavelength of 700 nm or greater with a maximum cutting percentage of 50 to 80 % and 100 % of ultraviolet rays having a wavelength of 400 nm or less, and a cylindrical article for controlling the growth of a tree characterized in that it is made of a material which cuts off blue rays having a wavelength of 400 to 500 nm with a maximum cutting percentage of 30 to 80 % and 100 % of ultraviolet rays raye d a wavelength of 400 nm or less.

L'invention concerne un article cylindrique caractérisé en ce qu'il est fait d'une matière qui protège des lumières rouges dont la longueur d'onde oscille entre 560 et 700 nm avec un pourcentage de protection maximum allant de 30 à 50 n % et qui protège à 100 % des ultraviolets dont la longueur d'onde oscille entre 400 nm ou moins ; en ce qu'il est fait d'une matière qui protège des infrarouges lointains dont la longueur d'onde est de 700 nm ou plus avec un pourcentage de protection maximum oscillant entre 50 et 80 % et qui protège également à 100 % des ultraviolets dont la longueur d'onde est de 400 nm ou moins ; en ce qu'il est fait d'une matière qui protège des lumières bleues dont la longueur d'onde oscille entre 400 et 500 nm avec un pourcentage de protection maximum allant de 30 à 80 % et qui protège à 100 % des ultraviolets dont la longueur d'onde est de 400 nm ou moins. L'invention concerne également un procédé de régulation de la croissance d'un arbre.

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