Differences in Grain Yield and Quality in Main and Ratoon Rice in Southern Henan Province

doi:10.16819/j.1001-7216.2020.0106

Abstract

Abstract:

【Objective】 The combination of mid-season rice+ratoon rice is a new pattern of rice planting in southern Henan Province. However, the changes in grain yield and quality between the main and ratoon seasons remain unclear. Clarifying the changing law of grain yield and rice quality can lay a theoretical and practical basis for the screening of ratoon rice varieties with higher grain yield and better rice quality in southern Henan Province. 【Method】 In this study, 12 hybrid indica rice combinations suitable for single-cropping rice were used as materials under local high-yield cultivation conditions. The tested combinations were divided into four types according to their yields in main and ratoon seasons: BH, both high grain yields in main and ratoon season; HL, high grain yield in main season and low grain yield in ratoon season; LH, low grain yield in main season and high yield in ratoon season; BL, both low grain yields in main and ratoon seasons. The difference in rice quality was also analyzed. 【Result】 1) The processing quality and appearance quality in ratoon season were significantly improved, however, the protein contents decreased, and the eating quality of rice was improved to different extents as compared with those in main season; 2) Except for BL type (only one combination, Shenliangyou 11), the processing quality of BH and HL was better, and HL has better appearance quality and cooking and eating quality. There was no significant difference in protein contents among different yield types in main season, while in ratoon season, the protein contents in BH were 10.7 % higher than those in HL, and 1.75% lower than those in LH. 3) The effect of daily average temperature after full heading on grain quality was far greater than the sunshine hours, and the relatively low average daily temperature after full heading in ratoon season was the main reason for its better grain quality. 【Conclusion】 Based on higher grain yield and better rice quality, Liangyou 6326, Tianliangyou 616, Guangliangyou 476 and Fengliangyouxiang 1 were suitable varieties for ratoon cultivation in southern Henan Province.

Key words: main crop rice, ratoon rice, yield, rice quality

摘要：

【目的】 “中稻+再生稻”组合是豫南稻区新的水稻种植模式,但是头季与再生季水稻产量和稻米品质变化尚不清楚。明确其产量和米质变化规律可为豫南地区高产优质再生稻品种选择提供理论与实践依据。【方法】以两优6326等12个适于单季种植的杂交籼稻为材料,在当地高产栽培条件下,依据头季和再生季两季产量将其划分为两季产量均高(双高)、头季稻产量高再生季产量低(头高再低)、头季稻产量低再生季产量高(头低再高)和两季产量均低(双低)等四种类型,并分析了米质的差异。【结果】 1)与头季稻相比,12个组合的再生季稻米加工品质和外观品质显著改善,蛋白质含量降低,稻米食味品质不同程度变优。2)两季不同产量类型之间比较,除双低类型(仅深两优11号一个品种)外,双高类型和头高再低类型加工品质较优,而头高再低类型的外观品质和蒸煮食味品质较优。蛋白质含量在各产量类型头季稻之间无显著差异,而再生季双高类型较头高再低类型高10.7 %,比头低再高类型低1.75 %。3)齐穗后日平均温度对稻米品质的影响远大于日照时数,再生季齐穗后日平均温度较低是其稻米品质优于头季稻的重要原因。【结论】综合产量及品质,两优6326、天两优616、广两优476和丰两优香1号是适于豫南地区的高产优质再生水稻品种。

关键词: 头季稻, 再生稻, 产量, 稻米品质

CLC Number:

S511.01

Hao WANG, Xiangchen LIU, Qiang ZHANG, Guilong YU, Wendi ZHANG, Jian HUANG, An ZHU, Lijun LIU. Differences in Grain Yield and Quality in Main and Ratoon Rice in Southern Henan Province[J]. Chinese Journal OF Rice Science, 2020, 34(5): 425-434.

汪浩, 刘祥臣, 张强, 余贵龙, 张文地, 黄健, 朱安, 刘立军. 豫南地区头季和再生季水稻产量与品质差异分析[J]. 中国水稻科学, 2020, 34(5): 425-434.

Figures/Tables 9

References 26

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品种名称 Combination name	播种期 SD	移栽期 TD	头季稻MS			再生稻RS			全生育期 TGD/d
品种名称 Combination name	播种期 SD	移栽期 TD	齐穗期 FH	成熟期 MA	生育期 GD/d	齐穗期 FH	成熟期 MA	生育期 GD/d	全生育期 TGD/d
两优6326 LY 6326	03-04	04-17	06-28	08-06	155	09-02	10-22	77	232
泸优9803 LY 9803	03-04	04-17	07-12	08-17	166	09-08	10-28	72	238
天两优616 TLY 616	03-04	04-17	06-29	08-06	155	08-31	10-22	77	232
广两优476 GLY 476	03-04	04-17	07-12	08-17	166	09-13	10-28	72	238
丰两优香1号 FLYX 1	03-04	04-17	07-01	08-06	155	09-02	10-22	77	232
C两优018 CLY 018	03-04	04-17	07-13	08-17	166	09-09	10-29	73	239
两优0815 LY 0815	03-04	04-17	07-11	08-17	166	09-01	10-20	64	230
E两优476 ELY 476	03-04	04-17	07-10	08-17	166	09-08	10-30	74	240
准两优608 ZLY 608	03-04	04-17	07-10	08-17	166	09-07	10-26	70	236
凤两优464 FLY 464	03-04	04-17	07-05	08-06	155	09-02	10-22	77	232
德优8258 DY 8258	03-04	04-17	07-02	08-06	155	09-01	10-19	74	229
深两优11号 SLY 11	03-04	04-17	06-29	08-06	155	08-30	10-17	72	227

品种名称 Combination name	播种期 SD	移栽期 TD	头季稻MS			再生稻RS			全生育期 TGD/d
品种名称 Combination name	播种期 SD	移栽期 TD	齐穗期 FH	成熟期 MA	生育期 GD/d	齐穗期 FH	成熟期 MA	生育期 GD/d	全生育期 TGD/d
两优6326 LY 6326	03-04	04-17	06-28	08-06	155	09-02	10-22	77	232
泸优9803 LY 9803	03-04	04-17	07-12	08-17	166	09-08	10-28	72	238
天两优616 TLY 616	03-04	04-17	06-29	08-06	155	08-31	10-22	77	232
广两优476 GLY 476	03-04	04-17	07-12	08-17	166	09-13	10-28	72	238
丰两优香1号 FLYX 1	03-04	04-17	07-01	08-06	155	09-02	10-22	77	232
C两优018 CLY 018	03-04	04-17	07-13	08-17	166	09-09	10-29	73	239
两优0815 LY 0815	03-04	04-17	07-11	08-17	166	09-01	10-20	64	230
E两优476 ELY 476	03-04	04-17	07-10	08-17	166	09-08	10-30	74	240
准两优608 ZLY 608	03-04	04-17	07-10	08-17	166	09-07	10-26	70	236
凤两优464 FLY 464	03-04	04-17	07-05	08-06	155	09-02	10-22	77	232
德优8258 DY 8258	03-04	04-17	07-02	08-06	155	09-01	10-19	74	229
深两优11号 SLY 11	03-04	04-17	06-29	08-06	155	08-30	10-17	72	227

组合名称 Combination name	1–7 d¹⁾		8–14 d		15–21 d		22–28 d		29–35 d
组合名称 Combination name	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS
两优6326 LY 6326	27.8	25.4	24.9	22.8	30.3	22.6	32.1	21.3	28.0	20.1
泸优9803 LY 9803	30.3	22.6	32.1	22.8	28.0	21.5	30.2	20.5	30.0	19.5
天两优616 TLY 616	27.1	26.1	25.5	22.6	31.0	23.1	32.0	21.7	27.7	20.5
广两优476 GLY 476	30.3	23.2	32.1	21.8	28.0	20.5	30.2	20.0	30.0	15.9
丰两优香1号 FLYX 1	26.0	25.4	26.7	22.8	32.1	22.6	30.1	21.3	28.6	20.1
C两优018 CLY 018	31.0	22.8	32.0	22.6	27.7	21.3	30.5	20.1	29.3	18.6
两优0815 LY 0815	29.6	25.9	31.9	22.6	28.7	22.8	29.7	21.5	30.5	20.2
E两优476 ELY 476	28.7	22.6	31.8	22.8	29.5	21.5	29.0	20.2	30.8	19.2
准两优608 ZLY 608	28.7	22.6	31.8	22.8	29.5	21.5	29.0	20.2	30.8	19.2
凤两优464 FLY 464	24.9	25.4	30.3	22.8	32.1	22.6	28.0	21.3	30.2	20.1
德优8258 DY 8258	25.7	25.9	27.6	22.6	32.0	22.8	29.8	24.6	28.7	20.1
深两优11号 SLY 11	27.1	26.8	25.5	22.8	31.0	21.8	30.2	20.5	30.0	20.0

组合名称 Combination name	1–7 d¹⁾		8–14 d		15–21 d		22–28 d		29–35 d
组合名称 Combination name	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS
两优6326 LY 6326	27.8	25.4	24.9	22.8	30.3	22.6	32.1	21.3	28.0	20.1
泸优9803 LY 9803	30.3	22.6	32.1	22.8	28.0	21.5	30.2	20.5	30.0	19.5
天两优616 TLY 616	27.1	26.1	25.5	22.6	31.0	23.1	32.0	21.7	27.7	20.5
广两优476 GLY 476	30.3	23.2	32.1	21.8	28.0	20.5	30.2	20.0	30.0	15.9
丰两优香1号 FLYX 1	26.0	25.4	26.7	22.8	32.1	22.6	30.1	21.3	28.6	20.1
C两优018 CLY 018	31.0	22.8	32.0	22.6	27.7	21.3	30.5	20.1	29.3	18.6
两优0815 LY 0815	29.6	25.9	31.9	22.6	28.7	22.8	29.7	21.5	30.5	20.2
E两优476 ELY 476	28.7	22.6	31.8	22.8	29.5	21.5	29.0	20.2	30.8	19.2
准两优608 ZLY 608	28.7	22.6	31.8	22.8	29.5	21.5	29.0	20.2	30.8	19.2
凤两优464 FLY 464	24.9	25.4	30.3	22.8	32.1	22.6	28.0	21.3	30.2	20.1
德优8258 DY 8258	25.7	25.9	27.6	22.6	32.0	22.8	29.8	24.6	28.7	20.1
深两优11号 SLY 11	27.1	26.8	25.5	22.8	31.0	21.8	30.2	20.5	30.0	20.0

组合名称 Combination name	1–7 d¹⁾		8–14 d		15–21 d		22–28 d		29–35 d
组合名称 Combination name	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS	头季稻 MS	再生稻 RS
两优6326 LY 6326	2.0	4.9	0.8	2.6	8.8	1.6	10.5	5.4	4.6	7.2
泸优9803 LY 9803	8.8	4.1	10.5	0.5	4.6	5.1	8.6	7.3	7.9	4.6
天两优616 TLY 616	1.6	3.1	1.0	3.8	10.3	0.9	9.6	4.0	5.2	7.3
广两优476 GLY 476	8.8	0.9	10.5	3.8	4.6	6.0	8.6	5.5	7.9	3.1
丰两优香1号 FLYX 1	0.5	4.9	3.4	2.6	10.8	1.6	6.7	5.4	6.8	7.2
C两优018 CLY 018	10.3	2.6	9.6	1.6	5.2	5.4	8.5	7.2	7.0	3.6
两优0815 LY 0815	7.9	3.5	10.6	4.1	5.1	0.5	8.2	5.1	8.5	7.3
E两优476 ELY 476	6.2	4.1	10.9	0.5	5.6	5.1	7.6	7.3	1.9	4.6
准两优608 ZLY 608	6.2	3.8	10.9	0.9	5.6	4.0	7.6	7.3	9.1	4.6
凤两优464 FLY 464	0.8	4.9	8.8	2.6	10.5	1.6	4.6	5.4	8.6	7.2
德优8258 DY 8258	0.0	3.5	4.7	4.1	11.2	0.5	5.4	5.1	7.6	7.3
深两优11号 SLY 11	1.6	4.0	1.0	3.8	10.3	0.9	9.6	3.8	5.2	6.0