| 摘要 |
Compounds represented by the formula <IMAGE> (I) wherein R1 is lower alkyl having 1-4 carbons, lower alkenyl having 2-4 carbons or lower alkynyl having 2-4 carbons; R2, R3 and R4 each are a lower alkyl having 1-4 carbons or R2 and R4 together with the carbon to which they are attached are a 5 or 6 membered alicyclic ring; and X is chlorine, bromine or iodine; THEIR USE AS PLANT GROWTH REGULANTS AND PLANT GROWTH REGULANT COMPOSITIONS CONTAINING THE ACTIVE COMPOUNDS ARE DISCLOSED. |
