| 摘要 |
<p>A method of regulating the growth of plants, including combating unwanted vegetation, comprises applying to the plants, either on seed, the soil or directly on the plants an effective amount of a novel compound of the class having the general structural formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="22" wi="61" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>in which one of Q<Sub>1</Sub>, Q<Sub>2</Sub>, Q<Sub>3</Sub> or Q<Sub>4</Sub> is N, X is -OH or -O-(C<Sub>1</Sub>-C<Sub>4</Sub>alkyl) and Y is H or X and Y together represent a bond between carbon and nitrogen atoms and R is H or one or two of the following substituents: -Br, -Cl, -F, -I, -CF<Sub>3</Sub>, -CH<Sub>3</Sub>, -NO<Sub>2</Sub>, or -C≡N, or an agriculturally acceptable salt thereof.</p> |
