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| Effects of Different Gibberellin Treatments on Yield and Quality of Heracleum moellendorffii Hance in Winter Greenhouse |
| MAO Junying1，2，ZHANG Xue1，2，NING Fangshixin1，2，ZHAO Hengtian3，MAO Tongyan4，CHENG Yao1，2*，JIANG Xinmei1，2* |
| 1School of Horticulture and Landscape，Northeast Agricultural University，Harbin 150030，Heilongjiang，China；2Key Laboratory of Horticultural Crop Biology and Genetic Improvement （Northeast Region），Ministry of Agriculture and Rural Affairs，Harbin 150030，Heilongjiang，China；3Institute of Northeast Geography and Agroecology，Chinese Academy of Sciences，Harbin 150040，Heilongjiang，China；4Daqing City Agricultural Technology Extension Center，Daqing 163000，Heilongjiang，China |
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Abstract Taking one-year-old Heracleum moellendorffii Hance as test material，setting up different gibberellin concentration（50，100，150，200 mg·kg-1），respectively and making 2 factors group treatments with root soaking time（8，16，24 hours），this paper studied the effects of different gibberellin treatments on growth and quality of H. moellendorffii Hance in winter solar greenhouse．The results showed that gibberellin treatment could effectively shorten the germination period of H. moellendorffii Hance in winter，enhance germination rate，promote leaf growth，increase yield and perfect quality，meanwhile，increase the contents of chlorophyll，flavonoid，saponin，coumarin and polysaccharide．In conclusion，the treatment of soaking root of H. moellendorffii Hance by 200 mg·kg-1 gibberellin for 16 hours，the effect of H. moellendorffii Hance germination was the best，its growth was the fastest and yield was the highest．The treatment of soaking root in 100 mg·kg-1 gibberellin for 24 hours was in favour of lifting the contents of functional ingredients including flavonoid，saponin，coumarin and polysaccharide in H. moellendorffii Hance．
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Received: 24 February 2021
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