Effects of Picking Times on the Quality and Yield of Young Stem and Rapeseed of Oilseed-vegetable Dual-purpose Brassica napus Varieties

doi:10.11924/j.issn.1000-6850.casb2021-0832

Abstract

Abstract:

This study aims to screen out oilseed-vegetable dual-purpose Brassica napus varieties, which are of highly comprehensive production efficiency and suitable for cultivation in the Chengdu Plain of Sichuan Province. To develop the corresponding high-yield cultivation techniques, four B. napus varieties, i.e., ‘Caitai-1' (CT-1), ‘Caitai-2' (CT-2), ‘Songlanyoucai-1' (SLYC-1), and ‘Songlanyoucai-2' (SLYC-2) were compared with ‘Rongyou-18' (RY-18). The effects of varieties and picking times on the yield and quality of young stem and rapeseed, and comprehensive economic benefits were evaluated. Results showed that the appearance quality, and the contents of cellulose and lignin of the young stem were significantly decreased in the picking twice treatment compared with those in the picking once treatment, while the soluble sugar content was considerably increased. The plant height was notably decreased in the picking treatments compared with none picking treatment. The number of effective siliqua per plant and the yield of rapeseed were considerably increased in the picking once treatment compared with those in none picking treatment, while significantly decreased in the picking twice treatment. The influence of picking times on the seed quality of oil-vegetable dual-purpose rapeseed was not significant. The young stem yield, soluble sugar content and comprehensive economic benefit of SLYC-2 were notably higher than those of other varieties. In conclusion, SLYC-2 has the highest young stem quality and comprehensive economic benefit, which is suitable to be cultivated in the Chengdu Plain of Sichuan Province. The picking once treatment is the best cultivation method to ensure the yield and comprehensive production benefit of oilseed-vegetable dual-purpose rapeseed.

Key words: picking times, oilseed-vegetable dual-purpose Brassica napus, young stem, quality, yield

CLC Number:

S565.4

ZHENG Benchuan, LI Haojie, ZHANG Jinfang, CUI Cheng, JIANG Jun, CHAI Liang, HE Ping, ZHU Lijuan, HUANG Youtao, ZHOU Zhengjian, JIANG Liangcai. Effects of Picking Times on the Quality and Yield of Young Stem and Rapeseed of Oilseed-vegetable Dual-purpose Brassica napus Varieties[J]. Chinese Agricultural Science Bulletin, 2022, 38(22): 1-7.

Figures/Tables 4

References 24

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处理	品种	菜薹	油菜籽	综合生产效益
采摘1次	CT-1	8.10	2.99	11.09
	CT-2	8.49	3.52	12.01
	SLYC-1	6.92	2.00	8.92
	SLYC-2	12.21	2.58	14.80
	RY-18	4.63	2.60	7.24
采摘2次	CT-1	9.47	1.57	11.04
	CT-2	9.51	1.18	10.69
	SLYC-1	8.40	1.09	9.49
	SLYC-2	14.42	1.44	15.86
	RY-18	6.28	1.64	7.91
单收菜籽	CT-1		2.43	2.43
	CT-2		2.12	2.12
	SLYC-1		1.47	1.47
	SLYC-2		1.93	1.93
	RY-18		1.94	1.94

处理	品种	菜薹	油菜籽	综合生产效益
采摘1次	CT-1	8.10	2.99	11.09
	CT-2	8.49	3.52	12.01
	SLYC-1	6.92	2.00	8.92
	SLYC-2	12.21	2.58	14.80
	RY-18	4.63	2.60	7.24
采摘2次	CT-1	9.47	1.57	11.04
	CT-2	9.51	1.18	10.69
	SLYC-1	8.40	1.09	9.49
	SLYC-2	14.42	1.44	15.86
	RY-18	6.28	1.64	7.91
单收菜籽	CT-1		2.43	2.43
	CT-2		2.12	2.12
	SLYC-1		1.47	1.47
	SLYC-2		1.93	1.93
	RY-18		1.94	1.94