Artificial seed with a powder structure for anti-contamination

Details Artificial seed with a powder structure for anti-contamination Artificial seed with a powder structure for anti-contamination

1996-09-23

1998-06-30

Fox, David T.

Plant husbandry

Coated or impregnated seed, method or apparatus

47DIG9, 800200, A01C 106, A01C 2100, A01G 100, A01H 102

Patent

active

057716323

ABSTRACT:
An artificial seed has a powder structure or powder padded layer as a sealing material for anti-contamination purpose. This powder layer, 2-30 mm preferably 5-20 mm in thickness, consists of numerous fine sandy hydrophobic particles. The openings among the particles are small and winding enough to block micro-organisms from penetrating this dry and nutrientless layer into the seed, but not enough to block the needed oxygen. The hydrophobic nature of the particles is also effective to block water permeation and microbes therein, but not effective to block the tissue to grow out of the seed. The powder layer can cover any exposed part of the artificial seed. For the artificial seeds with a water-proof tough shell, the powder layer covers only the mouth or mouths of the shell. But for those with a water-soluble capsule, or water-soluble film, it covers all over the contents of the seeds. In both cases, the powder layer is again covered with the water-soluble film to kept the powder particles in position. After sowing and watering the artificial seed in non-sterile soil, the water-soluble film is dissolved but the powder layer is still kept in position by the surrounding soil. The germination process is very much like that of a real botanical seed.

REFERENCES:
patent: 5250082 (1993-10-01), Teng et al.
patent: 5382269 (1995-01-01), Giroud-Abel et al.
patent: 5427593 (1995-06-01), Carlson et al.
patent: 5525131 (1996-06-01), Asano
Dupis et al., Pharmaceutical Capsules as a Coating System for Artificial Seeds, Bio/Technology, vol. 12 Apr. 1994 pp. 385-389.

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