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应用结果表明，河南西洋参生育期同叶面喷施25·mgL－179401植物生长调节剂，可促进植株生长健壮，叶片功能期延长10～15天，二年生参根增产23．4％，大于3．8g以上的优质多根比率提高26.6％．
The application results showed that the growth of plant was promoted by the application of 25 mg · L-179401 plant growth regulators on the same foliage of American ginseng during the growth period. The functional period of leaves was prolonged by 10-15 days and that of biennial roots was increased by 23.4% and 3% respectively. Quality multi-root ratio above 8g increased by 26.6%.