COMPOSITION COMPRISING 5-AMINOLEVULINIC ACID AND POLYGLUTAMIC ACID USEFUL AS DEPRESSOR AND GROWTH AGENT FOR PLANTS

摘要

PURPOSE: An agent for promoting and suppressing plant growth using 5-aminolevulinic acid and polyglutamic acid is provided to enhance fruit size and sweetness. CONSTITUTION: A composition for promoting plant growth contains 0.1-3 ppm of 5-aminolevulinic acid and 0.01-2,000 ppm of polyglutamic acid. Polyglutamic acid is a straight polymer chain having a molecular weight of 1,500-100,000 Da. 5-aminolevulinic acid has 2.5-5.5 of pH concentration by mixing hydrochloric acid, phosphoric acid, nitric acid, sulfuric acid or mixture thereof.