Page 40 - 《华中农业大学学报》2025年第1期

34 华 中 农 业 大 学 学 报 第 44 卷

Effects of treating seeds compositely with wood vinegar and biochar
on germination，growth，yield and quality of rapeseed

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QU Zhaojie ,ZHU Kunmiao ,HU Lüliang ,ZHOU Yu ,YUAN Baozhong ,HU Liyong 1
1.Ministry of Agriculture and Rural Affairs Key Laboratory of Crop Ecophysiology and Farming
System in the Middle Reaches of the Yangtze River/College of Plant Science and Technology，
Huazhong Agricultural University，Wuhan 430070，China；
2.Hubei Province Key Laboratory of Nutritional Quality and Safety of Agro-Products/
Institute of Quality Standard and Testing Technology for Agro-Products，
Hubei Academy of Agricultural Sciences，Wuhan 430064，China；
3.Hubei Province Extension Station of Agricultural Technology，Wuhan 430072，China

Abstract Seeds of Huayouza 50 rapeseed were used to conduct laboratory screening and field exper‐
iments to evaluate the effects of wood vinegar priming （PV） and rice straw biochar （BC） coating on the
germination and seedling，the growth of seedling，the yield and quality of rapeseed to improve the rate of
seedling and vigor seedling in rapeseed with direct-seeding. 7 treatments of wood vinegar priming includ‐
ing 0 （pure distilled water，HP），1∶200 （PV200），1∶00 （PV400），1∶600 （PV600），1∶800 （PV800），
1∶1 000 （PV1000），and 1∶1 200 （PV1200） and 5 treatments of rice straw biochar （BC） including 20%
（BC20），30%（BC30），40%（BC40），50%（BC50）and 60%（BC60，m/m）were set up. The results
showed that the optimal ratio for promoting the germination and the growth of seedling was triggered by di‐
luting the wood vinegar solution 1 000 times （PV1000） and using a seed coating agent with BC30 for gran‐
ulation. The treatment of PV1000 and PV1000+BC30 significantly increased the rate of seedling in rape‐
seed by 20.2% and 22.1%，respectively. The biomass of PV，BC，and PV+BC treatment increased by
13.7%，21.6%，and 35.3% respectively compared to that of the control. PV，BC，and PV+BC treatment
increased yield of rapeseed by 14.4%，13.6%，and 17.0%，respectively. PV+BC treatment significantly in‐
creased the content of oleic acid and reduced the content of glucosinolate. It is indicated that PV and PV+
BC are effective methods for treating seeds of rapeseed.
Keywords wood vinegar； biochar； seed treatment； rapeseed； germination of seed； growth； yield

（责任编辑：张志钰）