Preparation for the protection of emerging sugar beets against d

Details Preparation for the protection of emerging sugar beets against d Preparation for the protection of emerging sugar beets against d

1979-07-05

1981-03-31

Rose, Shep K.

Drug, bio-affecting and body treating compositions

Whole live micro-organism, cell, or virus containing

Genetically modified micro-organism, cell, or virus

47 576, 71 77, A01N 6300

Patent

active

042593174

ABSTRACT:
The invention relates to a dry powdered preparation to be applied onto sugar beet seeds, the preparation containing, as its active constituent, organs of reproduction of Pythium oligandrum Drechsler, particularly the oospores, in a sufficiently high concentration of at least about 1,000,000, preferably at least about 4,000,000 per gram (optimum in the range 50,000,000-500,000,000 per gram). Such concentrations make it possible to apply about 100,000 oospores or more onto every seed, which proved sufficient to secure protection of emerging sugar beet plants against "damping off" or "black leg" disease. Although the mycoparasitism of Pythium oligandrum has been discovered many years ago, its use for biological protection required a lot of research work establishing the conditions necessary for obtaining reliable results on a field scale.

REFERENCES:
patent: 1319157 (1919-10-01), Lingle
patent: 2502809 (1950-04-01), Vogelsang
patent: 2651883 (1953-09-01), Hedrick et al.
patent: 2764843 (1956-10-01), Peake
patent: 2967376 (1961-01-01), Scott
patent: 3936976 (1976-02-01), Porter et al.
patent: 4061488 (1977-12-01), Mann
patent: 4067141 (1978-01-01), Matsunaga et al.
patent: 4068602 (1978-01-01), Mickus et al.

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