The Study Of Growth Regulating Substance On The Yield And Quality Of Flammulina Velutipes

The effects of different growth regulating substances on the yield and quality of Flammulina velutipes were studied with F₃₂ Flammulina velutipes variety. The main results were as follows.1. Single applying the growth regulating substances of Enfei, Gule, Guzhuangsu, Penshibao and amino acids mixture microfertilizer could significantly promote the growth of Flammulina velutipes mycelium, shorten the mycelium growth time, make the mycelium growth concentrate, increase yield and improve quality of Flammulina velutipes. Among five growth regulating substances, applying 20ml Guzhuangsu and 15ml amino acids mixture microfertilizer increased the yield of Flammulina velutipes mostly, the increasing percent were separately at 26.54% and 26.24%, and enhanced the protein content of fruit body at 4.17% and 12.5%.2. The effect of combination applying different growth regulating substances was better than that of single one. The yield of mixing 5ml Enfei, 125ml Gule, and 5ml Guzhuangsu in culture medium treatment was highest, and its increasing yield percents were at 20.7%, 21.4%, 13.0% than single adding 5ml Enfei, 125ml Gule, and 5ml Guzhuangsu in culture medium treatments. The yield of combination spraying 200 times Enfei and 60ml/L Fengxianbao treatment was maximum, and its increasing yield percents were at 11.74%, 22.78% than single spraying 200 times Enfei and 60ml/L Fengxianbao treatments.3. The treatments of mixing different growth regulating substances in culture medium with spraying different growth regulating substances at the second fruit body growth phase increased the yield of Flammulina velutipes most significantly. The best treatment is mixing 10ml Enfei, 15ml amino acid mixture microfertilizer, 20ml Guzhuangsu per 50kg culture medium with spraying 20mg/L Fengxianbao at the second fruit body growth phase. This treatment could acquire 166.48% biological efficiency, was 55.08% higher than check treatment, and increase protein content 8.33%, total amino acid content 61.48% and essential amino acid content 62.39%.4. The fruit body of Flammulina velutipes after applying different growth regulating substances is in accordance of the national health standard about edible fungi (GB7096-1996). So applying growth regulating substances in the culture of Flammulina velutipes is safe.