Key points of agronomic traits and cultivation technology of indica-japonica hybrid rice variety Chunyou 87

doi:10.16178/j.issn.0528-9017.20240063

Abstract

Abstract:

Chunyou 87 is a japonica three-line hybrid rice variety selected and bred by the China Rice Research Institute, which was approved by the National Crop Variety Examination and Approval Committee in 2021 (National Rice 20210374), and is suitable for single-season late rice planting in the rice blast light areas of japonica rice areas in Zhejiang Province, Shanghai, southern Jiangsu Province, Anhui Province and Hubei Province. From 2022 to 2023, Yongkang City introduced Chunyou 87 which was characterized by neat and consistent growth, green stalks and yellow maturity in the later stage, with the advantages of good color change, strong lodging resistance, good yield, and excellent rice quality. In this paper, the demonstration planting performance and agronomic traits were summarized, and the key points of high-yield cultivation technology from seed treatment, timely sowing, reasonable dense planting, scientific fertilization, water slurry management, weed, disease and pest control were introduced, so as to provide a reference for the promotion of planting in Yongkang area.

Key words: indica-japonica hybrid rice, Chunyou 87, cultivation techniques, rice

CLC Number:

S511

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ZHI Xinzhong, CHEN Zhonglin, YING Qiaohong, LONG Qiyong. Key points of agronomic traits and cultivation technology of indica-japonica hybrid rice variety Chunyou 87[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(9): 2019-2022.

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URL: http://www.zjnykx.cn/EN/10.16178/j.issn.0528-9017.20240063

http://www.zjnykx.cn/EN/Y2024/V65/I9/2019

Figures/Tables 4

Table 1 Growth period and agronomic traits of rice demonstrated in Yongkang from 2022 to 2023

年份	品种	生育期(月-日)					全生育期/d	株高/ cm	穗长/ cm	穗总粒数	穗实粒数	结实率/ %	千粒重/ g	有效穗/ (万·hm^-2)	理论产量/ (t·hm^-2)
年份	品种	播种期	移栽期	始穗期	齐穗期	成熟期	全生育期/d	株高/ cm	穗长/ cm	穗总粒数	穗实粒数	结实率/ %	千粒重/ g	有效穗/ (万·hm^-2)	理论产量/ (t·hm^-2)
2022	春优87	05-20	06-17	08-30	09-03	11-12	176	113.0	20.22	319.8	272.8	85.3	23.45	210.30	13.45
	甬优1540	05-20	06-17	08-15	08-18	10-27	160	112.5	21.82	253.9	239.3	94.2	22.93	241.79	13.27
2023	春优87	05-14	06-07	08-26	08-29	11-02	172	123.5	23.46	370.3	327.8	88.5	24.52	197.55	15.88
	甬优1540	05-14	06-07	08-11	08-15	10-20	159	115.0	24.20	302.5	271.4	89.7	26.75	205.95	14.95

Table 1 Growth period and agronomic traits of rice demonstrated in Yongkang from 2022 to 2023

年份	品种	生育期(月-日)					全生育期/d	株高/ cm	穗长/ cm	穗总粒数	穗实粒数	结实率/ %	千粒重/ g	有效穗/ (万·hm^-2)	理论产量/ (t·hm^-2)
年份	品种	播种期	移栽期	始穗期	齐穗期	成熟期	全生育期/d	株高/ cm	穗长/ cm	穗总粒数	穗实粒数	结实率/ %	千粒重/ g	有效穗/ (万·hm^-2)	理论产量/ (t·hm^-2)
2022	春优87	05-20	06-17	08-30	09-03	11-12	176	113.0	20.22	319.8	272.8	85.3	23.45	210.30	13.45
	甬优1540	05-20	06-17	08-15	08-18	10-27	160	112.5	21.82	253.9	239.3	94.2	22.93	241.79	13.27
2023	春优87	05-14	06-07	08-26	08-29	11-02	172	123.5	23.46	370.3	327.8	88.5	24.52	197.55	15.88
	甬优1540	05-14	06-07	08-11	08-15	10-20	159	115.0	24.20	302.5	271.4	89.7	26.75	205.95	14.95

Table 2 Yield measurement of rice demonstrated in Yongkang in 2023

品种	田块编号	面积/ hm²	产量/ t	含水率/ %	杂质/ %	折合标准水分产量/ (t·hm^-2)	平均产量/ (t·hm^-2)
春优87	1	0.081	1.158 2	26.7	1	12.135 9	12.568 8
	2	0.071	1.074 3	25.5	1	13.052 5
	3	0.075	1.097 2	26.1	1	12.518 1
甬优1540	1	0.082	1.131 6	25.8	1	11.856 4	11.856 4

Table 2 Yield measurement of rice demonstrated in Yongkang in 2023

品种	田块编号	面积/ hm²	产量/ t	含水率/ %	杂质/ %	折合标准水分产量/ (t·hm^-2)	平均产量/ (t·hm^-2)
春优87	1	0.081	1.158 2	26.7	1	12.135 9	12.568 8
	2	0.071	1.074 3	25.5	1	13.052 5
	3	0.075	1.097 2	26.1	1	12.518 1
甬优1540	1	0.082	1.131 6	25.8	1	11.856 4	11.856 4

Table 3 Rice quality analysis of Chunyou 87

年份	糙米率/ %	精米率/ %	整精米率/ %	垩白率/ %	垩白度/ %	直链淀粉含量/%	胶稠度/ mm	碱消值	透明度
2018	84.2	76.6	65.7	12.0	2.2	16.6	78.0	7.0	1.0
2019	83.1	73.5	66.1	25.0	2.5	16.5	72.0	7.0	1.0
平均	83.7	75.1	65.9	18.5	2.4	16.6	75.0	7.0	1.0

Table 3 Rice quality analysis of Chunyou 87

年份	糙米率/ %	精米率/ %	整精米率/ %	垩白率/ %	垩白度/ %	直链淀粉含量/%	胶稠度/ mm	碱消值	透明度
2018	84.2	76.6	65.7	12.0	2.2	16.6	78.0	7.0	1.0
2019	83.1	73.5	66.1	25.0	2.5	16.5	72.0	7.0	1.0
平均	83.7	75.1	65.9	18.5	2.4	16.6	75.0	7.0	1.0

Table 4 Identification of the main disease resistance of Chunyou 87

年份	穗瘟发病率		穗损失率		稻瘟病评价	白叶枯病		褐飞虱
年份	平均级	最高级	平均级	最高级	稻瘟病评价	病级	评价	病级	评价
2018	5.6	7	3	5	中抗	5	中感	9	高感
2019	7.0	7	3	3	中抗	3	中抗	9	高感

Table 4 Identification of the main disease resistance of Chunyou 87

年份	穗瘟发病率		穗损失率		稻瘟病评价	白叶枯病		褐飞虱
年份	平均级	最高级	平均级	最高级	稻瘟病评价	病级	评价	病级	评价
2018	5.6	7	3	5	中抗	5	中感	9	高感
2019	7.0	7	3	3	中抗	3	中抗	9	高感

References 6

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