Method of retarding the growth of plants using certain oxadiazol

Details Method of retarding the growth of plants using certain oxadiazol Method of retarding the growth of plants using certain oxadiazol

1976-01-12

1977-07-12

Hollrah, Glennon H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

A01N 500

Patent

active

040351750

ABSTRACT:
Plant growth regulant effects, such as dwarfing, cessation of terminal growth, increased flower set, increased fruit and pod set, fruiting body abortion, twisting and epinastic responses, etc., may be accomplished on crops such as soybeans, cotton, etc., by application of certain 2-(1,3,4-oxadiazol-2-yl) or 2-(2-oxazolyl) or 2-(1,3,4-thiadiazol-2-yl)benzoic acids, salts and esters, having the formula ##STR1## where X is nitrogen or C--R" (R" being hydrogen or methyl), Z is oxygen or sulfur when X is nitrogen, Z is oxygen and when X is C--R", R is phenyl or various substituents, and R' is hydrogen or various substituents. An example is 2-(5-phenyl-1,3,4-oxadiazol-2-yl)benzoic acid. The compounds where X is nitrogen and Z is sulfur are new compounds, e.g., 2-(5-phenyl-1,3,4-thiadiazol-2-yl)benzoic acid.

REFERENCES:
patent: 3844761 (1974-10-01), Newallis et al.
patent: 3868244 (1975-02-01), Taylor et al.
patent: 3882138 (1975-05-01), Brouwer et al.
patent: 3947263 (1976-03-01), Brouwer et al.

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