Breeding and seed production technology of indica-japonica hybrid rice Chunyou 86

doi:10.16178/j.issn.0528-9017.20240095

Abstract

Abstract:

Chunyou 86 is a new hybrid rice variety bred with indica-japonica subspecies composed of the early maturing late japonica sterile line Chunjiang 88A and the indica-japonica intermediate broad-affinity restorer line T6 by the China Rice Research Institute and Zhejiang Kecheng Seed Industry Co., Ltd., which has the characteristics of moderate plant height, high yield and stable yield, and wide adaptability, and was approved by the National Crop Variety Examination and Approval Committee of the Ministry of Agriculture and Rural Affairs in November 2023 (Approval Number: National Examination Rice 20233243), and is suitable for use in the light incidence areas of rice blast disease in the japonica rice areas in Zhejiang Province, Shanghai, southern Jiangsu Province, along the Yangtze River of Anhui Province and Hubei Province as single-season late rice. In this paper, the breeding process, yield performance, characteristics, cultivation technology points and seed production technology of Chunyou 86 were introduced, which provided theoretical basis and technical support for subsequent promotion.

Key words: indica-japonica hybrid rice, Chunyou 86, variety breeding, seed production technology

CLC Number:

S512

CHEN Zhonglin, MA Renfang, LIU Huazhou, LONG Qiyong. Breeding and seed production technology of indica-japonica hybrid rice Chunyou 86[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(7): 1531-1538.

Figures/Tables 10

References 8

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品种	年份	产量/ (t·hm^-2)	比CK/ %	比组平均/%	增产点率/%
春优86	2020	11.03	14.66	5.03	100.0
	2021	10.56	8.31	1.12	81.8
	平均	10.80	11.57	2.81	90.9
嘉优5号(CK)	2020	9.62	0	-8.35	0
	2021	9.75	0	-6.71	0
	平均	9.68	0	-7.51	0

品种	年份	产量/ (t·hm^-2)	比CK/ %	比组平均/%	增产点率/%
春优86	2020	11.03	14.66	5.03	100.0
	2021	10.56	8.31	1.12	81.8
	平均	10.80	11.57	2.81	90.9
嘉优5号(CK)	2020	9.62	0	-8.35	0
	2021	9.75	0	-6.71	0
	平均	9.68	0	-7.51	0

品种	产量/(t·hm^-2)	比CK/%	增产点率/%
春优86	11.49	18.82	100.0
嘉优5号(CK)	9.67	0	0

品种	产量/(t·hm^-2)	比CK/%	增产点率/%
春优86	11.49	18.82	100.0
嘉优5号(CK)	9.67	0	0

试验点	年份	品种	播种期 (月-日)	始穗期 (月-日)	齐穗期 (月-日)	成熟期 (月-日)	全生育期/ d	比CK/ d
安徽合肥	2020	春优86	05-20	08-24	08-27	10-22	155	0
		嘉优5号(CK)	05-20	08-26	08-30	10-22	155	0
	2021	春优86	05-12	08-20	08-26	10-04	145	-5
		嘉优5号(CK)	05-12	08-25	08-30	10-09	150	0
浙江杭州	2020	春优86	05-21	08-27	09-01	11-01	164	3
		嘉优5号(CK)	05-21	08-24	08-27	10-29	161	0
	2021	春优86	05-21	08-28	09-03	10-23	155	0
		嘉优5号(CK)	05-21	08-28	09-02	10-23	155	0
湖北天门	2020	春优86	06-04	08-28	09-05	10-28	146	0
		嘉优5号(CK)	06-04	08-30	09-04	10-28	146	0
	2021	春优86	05-30	08-19	08-26	10-09	132	-4
		嘉优5号(CK)	05-30	08-25	08-30	10-13	136	0
湖北黄冈	2020	春优86	05-30	08-23	08-27	10-14	137	2
		嘉优5号(CK)	05-30	08-21	08-26	10-12	135	0
	2021	春优86	05-25	08-23	08-27	10-15	143	3
		嘉优5号(CK)	05-25	08-22	08-26	10-12	140	0
湖北沙市	2020	春优86	06-04	09-01	09-07	10-29	147	-1
		嘉优5号(CK)	06-04	08-31	09-06	10-30	148	0
	2021	春优86	06-03	08-30	09-05	10-23	142	2
		嘉优5号(CK)	06-03	08-31	09-07	10-21	140	0
上海奉贤	2020	春优86	05-17	08-26	08-29	10-25	161	0
		嘉优5号(CK)	05-17	08-25	08-28	10-25	161	0
	2021	春优86	05-14	08-26	08-29	10-22	161	-2
		嘉优5号(CK)	05-14	08-28	08-31	10-24	163	0
安徽南陵	2020	春优86	05-25	09-01	09-03	10-19	147	-2
		嘉优5号(CK)	05-25	09-02	09-05	10-21	149	0
	2021	春优86	05-25	08-30	09-01	10-08	136	3
		嘉优5号(CK)	05-25	08-31	09-02	10-05	133	0
浙江温州	2020	春优86	06-14	09-01	09-05	10-27	135	-1
		嘉优5号(CK)	06-14	09-01	09-06	10-28	136	0
	2021	春优86	06-15	09-08	09-13	10-28	135	2
		嘉优5号(CK)	06-15	09-09	09-14	10-26	133	0
浙江海宁	2020	春优86	05-21	08-28	09-01	10-20	152	2
		嘉优5号(CK)	05-21	08-25	08-29	10-18	150	0
	2021	春优86	05-23	08-26	08-30	10-18	148	-1
		嘉优5号(CK)	05-23	08-27	08-30	10-19	149	0
江苏句容	2020	春优86	05-15	08-24	08-30	10-20	158	-2
		嘉优5号(CK)	05-15	08-29	09-02	10-22	160	0
	2021	春优86	05-15	08-26	08-30	10-29	167	0
		嘉优5号(CK)	05-15	08-27	08-30	10-29	167	0
江苏南京	2021	春优86	05-26	08-28	09-01	10-27	154	-4
		嘉优5号(CK)	05-26	08-29	09-02	10-31	158	0
平均		春优86					147	-2
		嘉优5号(CK)					149	0