Plant husbandry – Coated or impregnated seed – method or apparatus
Patent
1995-05-05
1996-11-12
Locker, Howard J.
Plant husbandry
Coated or impregnated seed, method or apparatus
47 58, 47DIG9, 47DIG11, 426419, 427 4, 800200, A01C 100, A01C 106, A01C 2100
Patent
active
055728278
ABSTRACT:
The invention is drawn to a method of applying a hydrogel coating to embryonic plants to improve early plant growth by controlling the amount of cross-linking. A dry coating of a water-soluble hydrogel in powder form is built up around individual embryonic plants. The powder-coated plants are introduced into a water bath which is free of polyvalent metal ions to partially hydrate the coatings. Rapidly thereafter and before the coatings are fully hydrated, the bath is modified by dispersing cross-linking polyvalent metal ions therein. The contact time of the coated plants in the modified bath is limited so that the polyvalent metal ions diffuse into the coatings and form an inwardly decreasing concentration gradient therein. The plants are separated from the modified bath so that the polyvalent metal ions are redistributed and equilibrated within the coatings. The resulting coatings are in a uniform partially cross-linked condition which promotes leaf emergence and plant vigor.
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Ball Horticultural Company
Locker Howard J.
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