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1. (WO2012085336) PROCÉDÉ ET MOYENS D'ACCLIMATATION DE JEUNES PLANS POUR LA VIE À L'EXTÉRIEUR
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

PATENT CLAIMS

1. A method of treating plants, characterized in that,

-at least one said plant is a tree seedling and is housed indoors (100),

-the said tree seedlings are exposed to artificial UV light indoors prior to outdoor life

(110),

-at least a part of the incident UV light is produced by light emitting diodes (LEDs) (110).

2. A method as claimed in claim 1, characterized in that, the said artificial light is applied in small doses during the major part of nursing of at least one seedling (210, 310) and/or as a single period in the end of the in-doors nursing period.

3. A method as claimed in claim 1, characterized in that, the said artificial light (220, 320, 321) is applied in any of the following bands: UV-A (315-400 nm), UV-B (280-315 nm), violet and blue areas (400-500 nm), red and far red areas (600-800 nm) and/or green and yellow areas of the spectrum (500-600 nm).

4. A method as claimed in claim 1, characterized in that, the said artificial light spectrum (250) combined with the spectrum of Sun light transparent through a greenhouse wall and/or ceiling (240) amounts to a combined sum spectrum similar to the solar spectrum observed on the ground of the Earth with or without an intensity gap between 500-600 nm.

5. A method as claimed in claim 1, characterized in that, the said artificial light spectrum is similar to the solar spectrum observed on the ground of the Earth.

6. A method as claimed in claim 1, 4 and/or 5, characterized in that, green and yellow areas of the spectrum (500-600 nm) are omitted or have a smaller relative spectral intensity compared with blue or red bands than in sunlight.

7. A method as claimed in claim 4, characterized in that, the at least one tree seedling (210) is housed in an indoor greenhouse (200) with transparent walls.

8. A method as claimed in claim 5, characterized in that, the at least one tree seedling (310) is housed in a growth chamber (360).

9. A method as claimed in claim 1, characterized in that, the light device (220, 320, 321) is any of the following: a Light Emitting Diode (LED), AlInGaP red and AlInGaN green and/or blue HB-LEDs, a light wavelength up-conversion

phosphorescing material which is deposited in direct proximity of the LED chip, europium-cerium co-doped BaxSry ZnS3, MAIS1N3X and/or MMgSiOX (where in M is Metal such as Ca, Sr, Ba and X is rare earth element such as Eu or Mn in any various ratios and combinations) -phosphors or -phosphorescing materials and/or cerium doped lanthanide oxide sulfides in direct proximity of the LED chip, and/or a wavelength up-conversion device by means of at least one semiconductor quantum dot, which is placed near the LED.

10. A method as claimed in any of the preceding claims, characterized in that, the at least one said tree seedling (210, 310) is exposed to the artificial light spectrum of claim 4 during the day.

11. A method as claimed in any of the preceding claims, characterized in that, the said at least one tree seedling (210, 310) is exposed to the artificial light spectrum of claim 5 during the night.

12. A light device for plant treatment, characterized in that, at least one said light device (220, 320, 321) is a UV LED and is arranged to illuminate at least one tree seedling (210, 310) indoors prior to the transfer of said at least one tree seedling to outdoor life.

13. A light device as claimed in claim 12, characterized in that, the said artificial light (220, 320, 321) is arranged to be applied in small doses during the major part of nursing of the seedlings and/or as a single period in the end of the indoors nursing period.

14. A light device as claimed in claim 12, characterized in that, the said artificial light (220, 320, 321) is arranged to be applied in any of the following bands: UV-A

(315-400 nm), UV-B (280-315 nm), violet and blue areas (400-500 nm), red and far red areas (600-800 nm) and/or green and yellow areas of the spectrum (500-600 nm).

15. A light device as claimed in claim 12, characterized in that, the said artificial light spectrum (250) combined with the spectrum (240) of Sun light transparent through a greenhouse wall is arranged to amount to a combined sum spectrum similar to the solar spectrum observed on the ground of the Earth with or without an intensity gap between 500-600 nm.

16. A light device as claimed in claim 12, characterized in that, the said artificial light spectrum is arranged as similar to the solar spectrum observed on the ground of the Earth.

17. A light device as claimed in claim 12, 15 and/or 16, characterized in that, green and yellow areas of the spectrum (500-600 nm) are arranged to be omitted or arranged to have a smaller relative spectral intensity compared with blue or red bands than in sunlight.

18. A light device as claimed in claim 15, characterized in that, the at least one tree seedling (210) is housed in an indoor greenhouse (200) with transparent walls.

19. A light device as claimed in claim 16, characterized in that, the at least one tree seedlings (310) is arranged to be housed in a growth chamber (360).

20. A light device as claimed in claim 12, characterized in that, the light device

(220, 320, 321) is arranged to be any of the following: a Light Emitting Diode (LED), AlInGaP red and AlInGaN green and/or blue HB-LED, a light wavelength up-

conversion phosphorescing material which is deposited in direct proximity of the LED chip, europium-cerium co-doped BaxSryZnS3, MAISiN3X and/or MMgSiOX (where in M is Metal such as Ca, Sr, Ba and X is rare earth element such as Eu or Mn in any various ratios and combinations) -phosphors or -phosphorescing materials and/or cerium doped lanthanide oxide sulfides in direct proximity of the LED chip, and/or a wavelength up-conversion device by means of at least one semiconductor quantum dot, which is placed near the LED.

21. A light device as claimed in any of the preceding claims, characterized in that, the at least one said tree seedling (210, 310) is arranged to be exposed to the artificial light spectrum of claim 15 during the day.

22. A light device as claimed in any of the preceding claims, characterized in that, the said at least one tree seedling (210, 310) is arranged to be exposed to the artificial light spectrum of claim 16 during the night.

23. Use of artificial light to treat transplantation shock in plants.

24. Use as claimed in claim 23, characterized in that, at least some artificial light is in the UV-B band.

25. Use as claimed in claim 23, characterized in that, at least one plant is a tree seedling (210, 310).