Breeding of a new rapeseed variety Chongyou No.2 with high yield and disease resistance

doi:10.16178/j.issn.0528-9017.20240844

Abstract

Abstract:

Chongqing Academy of Agricultural Sciences developed a high-yield and disease resistant new rapeseed variety，Chongyou No.2，using cytoplasmic male sterile line ChongA10 as the female parent and restorer line Chong79R as the male parent in Brassica napus. In the regional joint variety comparative test of winter rapeseed in southwest China for two consecutive years in 2018—2019 and 2019—2020，the average yield of Chongyou No.2 was 2 861.80 kg·hm^-2，which was 5.07% higher than the control variety Rongyou 18. The content of erucic acid in its seeds was not detected，and the content of glucosinolates was 18.93 μmol·g^-1，with an oil content of 43.8%. Chongyou No.2 had been registered as a non-major crop variety in 2023 and was suitable for cultivation in Chongqing，Sichuan，Guizhou，and Shaanxi. This article summarized the breeding process，characteristics，years of multi-point experimental results，and key cultivation techniques of Chongyou No.2，so as to provide technical support for its better promotion and application in production.

Key words: high yield, disease resistance, rapeseed （Brassica napus）, Chongyou No.2, breeding

CLC Number:

S565.4

HUANG Hualei, LI Yanhua, SHI Youming, XIAO Changming, LIU Tao, ZHOU Yan. Breeding of a new rapeseed variety Chongyou No.2 with high yield and disease resistance[J]. Journal of Zhejiang Agricultural Sciences, 2026, 67(3): 629-633.

Figures/Tables 3

References 12

[1]	陈翠萍. 芥菜型油菜多室基因Bjln2定位的研究［D］. 西宁：青海大学，2016.
	CHEN C P. Research on the positioning of the multi-chamber gene Bjln2 in Sinapis alba L［D］. Xining：Qinghai University，2016.
[2]	王汉中. 我国油菜产业发展的历史回顾与展望［J］. 中国油料作物学报，2010，32（2）：300-302.
	WANG H Z. Review and future development of rapeseed industry in China［J］. Chinese Journal of Oil Crop Sciences，2010，32（2）：300-302.
[3]	傅延栋. 中国油菜杂种优势利用研究概况［J］. 作物研究，1990，4（3）：1-4.
	FU Y D. General statement on the studies and utilization of rapeseed heterosis in China［J］. Crop Research，1990，4（3）：1-4.
[4]	张书芬，朱家成，王建平，等. 河南省甘蓝型油菜细胞质雄性不育杂种优势研究应用及展望［J］. 中国油料作物学报，2018，40（5）：687-694.
	ZHANG S F， ZHU J C， WANG J P，et al. Heterosis research and application of cytoplasmic male sterility in Brassica napus L. in Henan Province［J］. Chinese Journal of Oil Crop Sciences，2018，40（5）：687-694.
[5]	黄桃翠，杨勋毅. 油菜庆油1号的选育与栽培技术［J］. 浙江农业科学，2016，57（6）：832-833.
	HUANG T C， YANG X Y. Breeding and cultivation techniques of rapeseed variety Qingyou No.1［J］. Journal of Zhejiang Agricultural Sciences，2016，57（6）：832-833.
[6]	董云松，张国建，罗延青，等. 甘蓝型油菜萝卜细胞质不育系杂交种云油杂12号的选育及其特性［J］. 种子，2016，35（9）：108-110.
	DONG Y S， ZHANG G J， LUO Y Q，et al. Breeding and characteristics of ogu CMS hybrid rape variety Yunyouza No.12［J］. Seed，2016，35（9）：108-110.
[7]	侯燕，侯剑，侯国佐，等. 隐性核不育三系杂交油菜品种油研998的选育［J］. 种子，2019，38（10）：110-115.
	HOU Y， HOU J， HOU G Z，et al. Breeding of three-line hybrid rape variety Youyan 998 with the character of recessive nuclear sterility［J］. Seed，2019，38（10）：110-115.
[8]	李倩， NADIl S，周元委，等. 抗根肿病甘蓝型油菜新品种华油杂62R的选育［J］. 作物学报，2021，47（2）：210-223.
	LI Q， NADIl S， ZHOU Y W，et al. Breeding of a novel clubroot disease-resistant Brassica napus variety Huayouza 62R［J］. Acta Agronomica Sinica，2021，47（2）：210-223.
[9]	胡文诗，李凯旭，尹羽丰，等. 油菜品种中油杂501高产油的氮素需求规律［J］. 中国油料作物学报，2025，47（2）：435-442.
	HU W S， LI K X， YIN Y F，et al. Nitrogen demand characteristics in Brassica napus cultivar Zhongyouza 501 with high oil production［J］. Chinese Journal of Oil Crop Sciences，2025，47（2）：435-442.
[10]	陈浩，官春云，刘忠松，等. 早熟油菜湘油420的选育［J］. 作物研究，2016，30（3）：271-273.
	CHEN H， GUAN C Y， LIU Z S，et al. Breeding of early maturing rapeseed（Brassica napus L.）cultivar Xiangyou 420［J］. Crop Research，2016，30（3）：271-273.
[11]	胡增民. 连续3年亏损，油菜籽加工业该如何解套［EB/OL］.（2012-01-13）［2026-01-22］. .
[12]	黄小琴，张蕾，杨潇湘，等. 基于抗病评价解析西南区油菜主要病害抗病育种现状［J］. 中国油料作物学报，2023，45（6）：1103-1108.
	HUANG X Q， ZHANG L， YANG X X，et al. Analysis resistance breeding progression of Brassica napus in southwest China based on evaluation of disease resistance［J］. Chinese Journal of Oil Crop Sciences，2023，45（6）：1103-1108.

时间	品种名称	全生育期/d	株高/cm	有效分枝部位/cm	有效分枝数	主序有效角果数	单株有效角果数	每角粒数	千粒重/g	单株产量/g
2018—2019年	重油2号	204.2	203.2	89.3	7.6	76.6	320.1	20.5	2.9	21.4
2018—2019年	蓉油18（CK）	205.7	208.3	101.0	6.6	79.5	290.0	18.1	3.4	19.5
2019—2020年	重油2号	202.0	200.8	88.7	7.9	84.3	362.7	24.4	3.2	23.8
2019—2020年	蓉油18（CK）	203.0	204.0	94.9	7.9	88.0	359.6	20.3	3.6	22.3

时间	品种名称	全生育期/d	株高/cm	有效分枝部位/cm	有效分枝数	主序有效角果数	单株有效角果数	每角粒数	千粒重/g	单株产量/g
2018—2019年	重油2号	204.2	203.2	89.3	7.6	76.6	320.1	20.5	2.9	21.4
2018—2019年	蓉油18（CK）	205.7	208.3	101.0	6.6	79.5	290.0	18.1	3.4	19.5
2019—2020年	重油2号	202.0	200.8	88.7	7.9	84.3	362.7	24.4	3.2	23.8
2019—2020年	蓉油18（CK）	203.0	204.0	94.9	7.9	88.0	359.6	20.3	3.6	22.3

试验点	2018—2019年		2019—2020年
试验点	重油2号	蓉油18（CK）	重油2号	蓉油18（CK）
长顺	2 047.50	2 544.00	2 362.05	1 937.10
思南	2 536.50	2 449.50	2 790.00	2 785.50
什邡	2 878.50	2 770.50	2 935.50	2 707.50
大邑	3 321.45	3 276.00	3 376.50	3 224.55
永川	2 797.50	2 680.50	2 193.60	2 147.10
垫江	1 665.60	2 188.20	2 355.60	2 361.60
汉中	4 405.05	3 794.85	3 604.50	2 708.55
南充	2 538.90	2 476.35	4 179.00	3 398.55
宜宾	2 745.00	2 590.50	2 779.50	2 983.50
平均	2 770.67	2 752.27	2 952.92	2 694.88

试验点	2018—2019年		2019—2020年
试验点	重油2号	蓉油18（CK）	重油2号	蓉油18（CK）
长顺	2 047.50	2 544.00	2 362.05	1 937.10
思南	2 536.50	2 449.50	2 790.00	2 785.50
什邡	2 878.50	2 770.50	2 935.50	2 707.50
大邑	3 321.45	3 276.00	3 376.50	3 224.55
永川	2 797.50	2 680.50	2 193.60	2 147.10
垫江	1 665.60	2 188.20	2 355.60	2 361.60
汉中	4 405.05	3 794.85	3 604.50	2 708.55
南充	2 538.90	2 476.35	4 179.00	3 398.55
宜宾	2 745.00	2 590.50	2 779.50	2 983.50
平均	2 770.67	2 752.27	2 952.92	2 694.88

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