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| Effects of Short-day Conditions on Growth and Tumorous Stem Swelling of Tumorous Stem Mustard in Northern Greenhouse |
| WANG Yiding1，2，JIANG Xinmei1，2，TONG Xuejiao1，2，LIU Zaimin1，2，LI Peixin1，2，SUN Ying1，2，YU Xihong1，2*，CHENG Yao1，2* |
| 1College of Horticulture and Landscape Architecture，Northeast Agricultural University，Harbin 150030，Heilongjiang，China；2Key Laboratory of Biology and Genetic Improvement of Horticultural Crops（Northeast Region），Ministry of Agriculture and Rural Affairs，Harbin 150030，Heilongjiang，China |
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Abstract The experiment taking medium maturing tumorous stem mustard variety‘Yonganchuanqi’as test material set up 2 factor treatments including light length and processing time to study effects of short-day conditions on the growth，the tumorous stem formation，yields and qualities of tumorous stem mustard in northern greenhouse．The results showed that short-day treatment could significantly reduce the plant expansion of tumorous stem mustard，promoting stem tumorous occurring early．With the treatment of 6 h/10 d，the weight of tumorous stem per plant and stem shape index appeared no obvious changes，accompanied with crude fiber contents decreasing and glucosinolates contents elevating．Linear regression analysis showed that tumorous stem diameter showed positively and negatively correlated with cumulative sunshine duration average daily sunshine duration，respectively．
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Received: 03 December 2022
Published: 11 January 2023
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