Emploi comme engrais de composés qui ne possèdent pas la structure des stéroïdesmais qui possèdent l'action des hormones stéroïdiques

摘要

539,507. Yeast. SOC. OF CHEMICAL INDUSTRY IN BASLE. Dec. 7, 1939, Nos. 31701 and 31702. Convention dates, Dec. 20, 1938 and Oct. 5, 1939. [Class 14 (ii)] [Also in Group I] A fertiliser for plants and nutrient medium for fungi, yeast and algae comprises a compound of the polyphenylethane or polyphenylethylene series or of the corresponding series in which one or more of the phenyl groups is wholly or in part hydrogenated, mixed with a nutrient solution or other fertiliser. Examples of compounds of the above series include triphenylethylene 4, 41-dioxystilbene (1); α, α1- dimethyl-I ; α-methyl-α1-ethyl-1; α, α1-diethinyl-I; α, α1-diphenyl-I; 3, 4-(41, 411-dioxydiphenyl)-2, 4 hexeadiene ; 2, 3-(41, 411-dioxydiphenyl)-1, 3-butadiene ; α-ethinyl-41, 411-dioxydiphenylthane and ethylidene-41, 411, 4111-trioxytriphenylethane. These compounds may be used as acetates, succinates, phosphates, halides or saccharides, and if they contain free acid groups are preferably used as calcium, potassium or ammonium salts. Keto-groups may also be present in the compounds used.