Use of nourseothricin preparations for seed pretreatment - improves germination and reduces fungal attack esp. used for seeds of woodland trees

• Main Authors: HEYDECK, PAUL., O-1307 EBERSWALDE-FINOW, DE, MAJUNKE, CURT., O-1300 EBERSWALDE-FINOW, DE, BOCKER, HARALD., O-6900 JENA, DE, STRUMPF, EBERHARD., O-6900 JENA, DE, BERLIN, MAIK, O-1300 EBERSWALDE-FINOW, DE
• Format: Patent
• Language: English; German
• Published: 29.07.1993
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

Pre-treatment of seeds, esp. those of woodland trees, with nourseothricin prepns. is claimed. Nourseothricin prepns. are known from DD 161182, DD 216161, DD 249713 and EP 0126256. USE/ADVANTAGE - Although the method is esp. applicable to seeds of woodland trees, partic. conifers such as Pinus sylvestris and Larix decidua, it can also be applied to seeds of ornamental plants and to seeds generally used in horticulture. The method confers accelerated germination to the seeds and in the seedlings reduces damping off and other fungal diseases caused e.g. by Fusarium spp., Pythium spp. and Rhizoctonia solani. Nourseothricin is more effective than synthetic fungicides, e.g. Benomyl. Carbendazim, and Thiram, and previously used antibiotics, e.g. phytobacteriomycin, and does not have the toxicity associated with these. Nourseothricin has LD50 1.145 g/kg p.o. (mice).