| 摘要 |
<p>The growth and economic yield of the plants can be influenced by treating whole plants, or roots, seeds, or soil, with an aliphatic acid ester of a diol having the general formula <CHEM> wherein R1 is hydrogen or OH, R2 is hydrogen or OH or alkyl (C1-C4), R3 is hydrogen, OH or alkyl (C1- C4), R4 is hydrogen, OH or alkyl [C1-C4), R5 is hydrogen or OH or alkyl (C1-C4), R6 is hydrogen or OH, m is any number from 0 to 30, n is any number from 0 to 30, (m+n) is not more than 30 and the aliphatic acid (or, in the case of a di-ester, at least one of the aliphatic acids) contains from 4 to 36 carbon atoms. Preferred compounds are mono- and di-esters in which the diol is 1,3-propane diol or (dl) 2-methyl 1,4-butane diol and the aliphatic acid is oleic, linoleic, or linolenic acid. The esters of (dl) 2-methyl 1,4-butane diol are novel compounds.</p> |
