Treated seeds
AssigneeSyngenta Participations AG
InventorsJob Schipper, Peter Van der Toorn, Tonko Bruggink
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Abstract
A method of treating primed seeds which results in a prolongation of shelf life compared to optionally dried conventionally primed seeds of the same species having substantially the same moisture content (MC), wherein the primed seeds are subjected to a water stress, a heat treatment or a combination thereof and are subsequently—where desired—dried back to a desired MC and seeds obtainable by such a method.
Claims27
A method for prolonging the shelf life of primed non-germinated seeds comprising the steps of:
- a) priming seeds;
- b) treating the primed seeds to an incubation wherein said incubation includes incubating the primed seeds at a temperature range of about 3 to about 40° C. for a period of about 1 to about 7 days;
- c) obtaining treated incubated primed seeds wherein the treated seeds have a moisture content of between about 3 to 20% units lower than the moisture content of untreated primed seeds of the same plant species;
- and
- d) drying the treated incubated primed seeds to substantially the moisture content of non-incubated non-primed seeds of the same plant species wherein the treated incubated seeds have a prolonged shelf life without loss of viability as compared to the viability of primed non-incubated seeds of the same plant species.
A method for prolonging the shelf life of primed non-germinated seeds comprising the steps of:
- a) priming seeds;
- b) treating the primed seeds to an incubation wherein said incubation is selected from the group consisting of
- (i) incubating the primed seeds in the temperature range from between about 3 to about 40° C. for a period of about 1 to about 7 days;
- (ii) incubating the primed seeds in an osmoticum for 1 to 7 days at a water potential in the range of from −0.5 to about −4.0 MPa;
- (iii) reducing the moisture content of the primed seeds by 3 to 20% units lower than the moisture content of untreated primed seeds of the same plant species at a temperature range of between 3 to about 25° C. for not more than 24 hours and storing the seeds for about 1 to 7 days in a container with minimal air and moisture exchange at a temperature from about 3 to 40° C.;
- and
- (iv) a combination of i) or ii) or iii) above;
- c) obtaining treated incubated primed seeds wherein the treated seeds have a moisture content about 3 to 20% units lower than the moisture content of untreated primed seeds of the same plant species;
- and
- d) drying the treated seeds to a moisture content of untreated seeds of the same plant species wherein the treated seeds have a prolonged shelf life without loss of viability as compared to the viability of untreated primed seeds of the same plant species.
A method for prolonging the shelf life of primed non-germinated seeds comprising the steps
- a) priming seeds;
- b) treating the primed seeds to a heat shock in the temperature range of from 25 to 45° C. for about 1 to 5 hours;
- c) obtaining treated primed seeds wherein the treated seeds have a moisture content about 0 to 20% units lower than the moisture content of untreated primed seeds of the same plant species;
- and
- e) drying the treated seeds to a moisture content of untreated seeds of the same plant species wherein the treated seeds have a prolonged shelf life without loss of viability as compared to the viability of untreated primed seeds of the same plant species.
In a method of priming seeds the improvement comprising:
- treating non-germinated seeds after imbibition, but prior to drying to a moisture content of untreated nonprimed seeds, to an incubation wherein said incubation includes a heat stress, water stress or combination thereof and wherein the shelf life of the incubated primed non-germinated seeds is extended compared to untreated primed non-germinated seeds of the same species.
Dependencies are inferred from the claim text.