播期对再生稻次适宜区杂交籼稻食味品质的影响

doi:10.3864/j.issn.0578-1752.2022.01.004

中国农业科学 ›› 2022, Vol. 55 ›› Issue (1): 36-50.doi: 10.3864/j.issn.0578-1752.2022.01.004

• 耕作栽培·生理生化·农业信息技术 • 上一篇下一篇

播期对再生稻次适宜区杂交籼稻食味品质的影响

李博¹(),杨帆¹(),秦琴¹,钟晓媛¹,李秋萍¹,曾玉玲¹,卢慧¹,陈勇¹,王丽¹,陶有凤¹,李娟²,冯炳亮³,任万军¹(),邓飞¹()

¹四川农业大学农学院/西南作物基因资源发掘与利用国家重点实验室/四川省作物生理生态及栽培重点实验室,四川温江 611130
²犍为县农业农村局,四川犍为 614400
³隆昌市农业农村局,四川隆昌 642150

收稿日期:2021-03-04 接受日期:2021-09-27 出版日期:2022-01-01 发布日期:2022-01-07
通讯作者: 任万军,邓飞
作者简介:李博,E-mail： libo5250@163.com。|杨帆,E-mail： 1276002485@qq.com。
基金资助:
国家自然科学基金区域创新发展联合基金(U20A2022);国家粮食丰产增效科技创新专项(2017YFD03017-02);四川省育种攻关项目(2021YFYZ0005)

Effects of Sowing Dates on Eating Quality of Different Indica Hybrid Rice in the Sub-Suitable Region of Ratoon Rice

LI Bo¹(),YANG Fan¹(),QIN Qin¹,ZHONG XiaoYuan¹,LI QiuPing¹,ZENG YuLing¹,LU Hui¹,CHEN Yong¹,WANG Li¹,TAO YouFeng¹,LI Juan²,FENG BingLiang³,REN WanJun¹(),DENG Fei¹()

¹College of Agronomy, Sichuan Agricultural University/State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Key Laboratory of Crop Physiology, Ecology, and Cultivation in Sichuan Province, Wenjiang 611130, Sichuan
²Qianwei County Agricultural and Rural Bureau, Qianwei 614400, Sichuan
³Longchang Agricultural and Rural Bureau, Longchang 642150, Sichuan

Received:2021-03-04 Accepted:2021-09-27 Online:2022-01-01 Published:2022-01-07
Contact: WanJun REN,Fei DENG

摘要/Abstract

摘要：

【目的】明确播期对再生稻次适宜区杂交籼稻食味品质的影响,为再生稻次适宜区种植结构调整和优质栽培提供理论和实践依据。【方法】以川优6203、宜香优2115和F优498等3个杂交籼稻品种为试验材料,在四川再生稻次适宜区的隆昌和犍为设置播期试验,通过对稻米直链淀粉和蛋白质含量测定,以及米饭气味、外观、适口性、滋味、冷饭质地和综合评分等指标的分析,研究播期对再生稻次适宜区杂交籼稻食味品质的影响。【结果】（1）杂交籼稻食味品质受生态点、播期、品种及其互作共同调控。（2）在再生稻次适宜区,播期对不同品种食味品质的影响在不同生态点有差异,2年直链淀粉含量、蛋白质含量和滋味,以及2018年适口性和综合评分均表现为隆昌生态点显著低于犍为生态点。与常规播期相比,适当推迟播期能使水稻灌浆结实期避开高温胁迫,提高直链淀粉含量、改善适口性和滋味,进而提高综合评分,使食味品质更为接近再生稻。（3）相关分析表明,直链淀粉含量、适口性和滋味与抽穗后20 d至成熟阶段的日均最高、最低和平均温度,以及日照时数呈显著或极显著负相关关系,综合评分则与日均最低温度呈显著负相关。（4）GGE双标图分析表明,隆昌生态点采用第3播期,犍为生态点采用第2、第3播期具有较好的综合评分且稳定性好。【结论】在确保水稻产量基础上,隆昌生态点在第3播期（5月初）进行播种,犍为生态点在第2播期（3月20日至25日）进行播种,可以使水稻灌浆结实期避开高温胁迫,改善杂交籼稻的食味品质,优质食味品种宜香优2115、川优6203与适当推迟播期结合效果更好。

关键词: 播期, 再生稻, 生态条件, 食味品质, GGE双标图

Abstract:

【Objective】 The aim of this study was to clarify the effects of sowing dates on the eating quality of indica hybrid rice in sub-suitable area of ratoon rice, so as to provide the theoretical and practical basis for the adjustment of planting structure and high quality cultivation in sub-suitable area of ratoon rice.【Method】 Field sowing dates experiments were conducted in the two sub-suitable area of ratoon rice in Sichuan (Longchang and Qianwei) with three indica hybrid rice varieties, namely Chuanyou 6203, Yixiangyou 2115, and Fyou 498. The effects of sowing dates on eating quality of indica hybrid rice in sub-suitable area of ratoon rice were studied by the determination of amylose and protein content, and the analysis of rice aroma, appearance, palatability, flavor, cold rice texture, as well as comprehensive score following the national standard sensory evaluation method.【Result】 (1) The eating quality of indica hybrid rice was affected by location, sowing date, variety, and their interactions. (2) The effects of sowing dates on the eating quality of different rice varieties were different to the study locations in the sub-suitable area of ratoon rice. The amylose content, protein content, palatability, taste, and flavor in the two study years, as well as the palatability and comprehensive score in 2018 in Longchang were significantly lower than that in Qianwei. Compared wtih the conventional sowing date, suitably delayed sowing date could improve the amylose content, palatability, and taste of rice by decreasing the temperature stress during grain filling stage, which resulted in the increase in comprehensive score of rice. This made the taste quality of rice closer to that of the ratoon rice. (3) Correlation analysis showed that amylose content, palatability, and flavor had significantly or extremely significantly negative correlation with the average daily maximum, minimum, and average temperatures, and sunshine hours from the 20 days after heading to mature stage, while comprehensive score was significantly and negatively related to the average daily minimum temperature from the 20 days after heading to mature stage. (4) The GGE-bioplot double plot analysis showed that the third sowing date in Longchang and second and third sowing dates in Qianwei had higher score and better stability of comprehensive score. 【Conclusion】 On the basis of ensuring the yield of rice, Longchang ecological point was sowed at the third sowing date (early May), and Qianwei ecological point was sowed at the second sowing date (March 20-March 25), which could avoid high temperature stress during the grain filling period of rice and improve the eating quality of hybrid indica rice. Furthermore, the selection of high-quality eating varieties as Yixiangyou 2115 and Chuanyou 6203 with suitable delaying of sowing date possessed higher taste quality in the sub-suitable area of ratoon rice.

Key words: sowing date, ratoon rice, ecological condition, eating quality, GGE-bioplot

李博,杨帆,秦琴,钟晓媛,李秋萍,曾玉玲,卢慧,陈勇,王丽,陶有凤,李娟,冯炳亮,任万军,邓飞. 播期对再生稻次适宜区杂交籼稻食味品质的影响[J]. 中国农业科学, 2022, 55(1): 36-50.

LI Bo,YANG Fan,QIN Qin,ZHONG XiaoYuan,LI QiuPing,ZENG YuLing,LU Hui,CHEN Yong,WANG Li,TAO YouFeng,LI Juan,FENG BingLiang,REN WanJun,DENG Fei. Effects of Sowing Dates on Eating Quality of Different Indica Hybrid Rice in the Sub-Suitable Region of Ratoon Rice[J]. Scientia Agricultura Sinica, 2022, 55(1): 36-50.

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https://www.chinaagrisci.com/CN/Y2022/V55/I1/36

图/表 10

表1

2018年试验点气象资料"

试验点 Experimental location	品种 Variety	处理 Treatment	播种—抽穗 Sowing-Heading				抽穗—抽穗后20 d Heading-The 20 days after heading				抽穗后20 d—成熟 The 20 days after heading-Maturity
试验点 Experimental location	品种 Variety	处理 Treatment	日平均温度 ADT (℃)	降雨量 P (mm)	日照时数 SH (h)	有效积温 EAT (℃)	日平均温度 ADT (℃)	降雨量 P (mm)	日照时数 SH (h)	有效积温 EAT (℃)	日平均温度 ADT (℃)	降雨量 P (mm)	日照时数 SH (h)	有效积温 EAT (℃)
隆昌 Longchang	V1	S1	21.33	359.40	541.90	733.60	28.60	66.70	135.20	264.20	28.60	206.20	108.00	291.20
		S2	22.10	416.20	509.40	775.40	29.50	83.60	173.70	268.30	27.70	164.20	115.70	315.20
		S3	25.72	504.90	482.00	985.90	28.80	57.70	175.70	271.80	24.00	36.40	57.30	306.00
		S4	26.30	596.50	486.90	994.30	29.60	57.70	186.40	284.50	21.60	79.80	27.80	270.20
		RR	—	—	—	—	25.63	33.90	93.80	188.60	20.31	94.20	24.30	69.10
	V2	S1	21.53	359.40	555.30	776.90	28.90	66.20	147.20	264.90	28.30	206.20	103.00	258.40
		S2	22.10	416.20	509.40	775.40	29.90	68.10	192.50	276.00	27.60	164.20	112.30	325.70
		S3	25.75	594.20	499.00	1010.60	29.30	57.70	185.50	275.30	23.00	53.90	34.70	311.80
		S4	26.32	596.50	497.50	1007.40	29.50	60.40	179.50	288.90	21.10	81.90	24.30	264.40
		RR	—	—	—	—	25.17	34.80	82.40	181.20	20.19	95.70	24.30	63.10
	V3	S1	21.02	331.60	509.40	668.20	26.19	182.80	48.50	256.50	30.70	75.10	122.70	283.60
		S2	21.77	356.40	482.50	706.00	26.72	115.00	67.90	265.10	28.50	227.50	137.50	340.90
		S3	25.60	451.30	449.10	922.60	27.47	219.80	142.90	268.60	27.10	31.80	114.80	349.00
		S4	26.24	567.00	453.00	933.20	28.12	133.00	151.50	273.00	23.50	64.80	68.80	332.20
		RR	—	—	—	—	22.53	62.10	33.70	200.50	20.68	93.60	24.30	83.40
犍为 Qianwei	V1	S1	21.84	564.50	483.80	793.50	26.98	103.80	74.60	249.70	27.11	306.10	68.10	240.70
		S2	22.38	596.40	437.30	834.80	27.43	124.70	93.30	264.90	26.71	336.60	90.00	253.10
		S3	24.89	651.30	345.70	909.50	27.93	210.20	147.70	250.00	23.76	76.50	46.80	331.50
		S4	25.38	798.90	359.70	923.70	28.44	111.40	155.90	261.80	21.83	102.00	28.40	279.00
		RR	—	—	—	—	21.93	79.90	26.00	133.30	17.74	85.30	25.00	31.00
	V2	S1	21.87	564.70	484.70	804.00	27.17	107.10	82.00	253.90	27.05	303.20	70.30	237.20
		S2	22.40	597.50	437.30	844.20	27.69	184.60	108.80	265.10	26.69	304.40	83.30	256.60
		S3	24.91	674.20	353.60	931.60	28.26	133.00	153.00	256.60	22.93	68.30	27.40	284.30
		S4	25.38	807.80	365.90	944.90	28.27	88.60	152.60	264.00	21.44	103.20	34.00	260.90
		RR	—	—	—	—	21.79	82.10	26.00	131.40	17.61	83.70	25.00	31.20
	V3	S1	21.58	457.80	471.40	724.10	26.19	182.80	48.50	233.30	28.53	129.00	77.20	291.60
		S2	22.17	548.10	430.40	760.70	26.72	115.00	67.90	249.70	27.21	315.60	93.20	279.40
		S3	24.81	529.90	329.20	863.20	27.47	219.80	142.90	250.90	26.43	68.50	90.10	319.00
		S4	25.28	796.10	327.70	883.70	28.12	133.00	151.50	257.40	23.31	94.40	57.20	296.40
		RR	—	—	—	—	22.53	62.10	33.70	136.70	18.30	100.80	18.30	38.80

表1

表2

2019年试验点气象资料"

生态点 Location	品种 Variety	处理 Treatment	播种—抽穗 Sowing-Heading				抽穗—抽穗后20 d Heading-The 20 days after heading				抽穗后20 d—成熟 The 20 days after heading-Maturity
生态点 Location	品种 Variety	处理 Treatment	日平均温度 ADT (℃)	降雨量 P (mm)	日照时数 SH (h)	有效积温 EAT (℃)	日平均温度 ADT (℃)	降雨量 P (mm)	日照时数 SH (h)	有效积温 EAT (℃)	日平均温度 ADT (℃)	降雨量 P (mm)	日照时数 SH (h)	有效积温 EAT (℃)
隆昌 Longchang	V1	S1	20.05	401.80	379.60	642.60	25.60	93.60	58.00	204.40	27.00	111.50	53.70	264.90
		S2	21.53	454.60	403.80	757.80	26.94	129.80	62.10	241.30	28.81	6.90	106.30	230.10
		S3	23.76	488.90	260.90	788.00	29.21	6.90	178.30	275.30	23.42	113.90	44.10	295.80
		S4	24.66	521.00	263.20	801.60	27.65	5.70	107.30	296.50	22.21	124.60	87.40	271.60
		RR	—	—	—	—	22.67	108.40	47.10	143.5	20.97	18.40	50.70	92.80
	V2	S1	20.14	401.80	389.00	663.10	26.51	67.10	64.40	210.00	26.98	101.80	65.90	271.30
		S2	21.55	459.60	403.80	766.90	27.00	112.50	73.90	240.40	29.15	3.40	109.90	262.30
		S3	23.83	499.20	266.80	812.30	28.37	74.10	150.20	278.30	24.94	107.70	62.80	280.90
		S4	24.89	521.00	312.10	860.70	26.50	80.80	74.40	275.70	21.86	51.20	87.30	246.30
		RR	—	—	—	—	22.25	114.50	46.60	142.9	20.73	21.50	48.20	82.00
	V3	S1	19.99	367.40	378.20	625.60	24.89	117.10	46.40	200.30	27.61	37.40	48.40	217.80
		S2	21.45	418.40	390.20	723.30	26.88	77.00	66.90	221.60	27.64	84.40	73.50	240.30
		S3	23.57	461.80	242.10	728.60	28.37	74.10	150.20	268.20	24.94	107.70	62.80	337.20
		S4	24.58	514.10	252.50	775.90	27.86	5.50	119.40	296.30	22.36	115.10	85.50	276.30
		RR	—	—	—	—	22.96	111.20	28.60	154.5	21.17	20.90	62.60	93.60
犍为 Qianwei	V1	S1	21.50	380.80	403.30	789.10	25.91	262.30	60.80	227.90	26.96	449.00	58.60	212.30
		S2	22.75	474.50	392.10	899.50	27.15	597.20	74.60	255.00	28.61	50.60	100.80	207.90
		S3	24.78	770.70	275.10	841.10	28.18	87.50	145.50	262.60	22.78	124.40	22.20	297.10
		S4	25.50	890.10	266.30	829.50	26.19	82.90	75.70	265.40	21.91	110.30	62.80	265.10
		RR	—	—	—	—	21.68	99.50	43.50	134	20.56	35.70	32.40	72.90
	V2	S1	21.52	395.70	403.80	804.50	26.62	360.80	65.60	241.40	27.08	335.60	73.60	220.50
		S2	22.80	602.00	393.40	921.70	27.15	553.90	86.20	255.10	28.55	65.30	91.50	226.80
		S3	24.84	945.30	293.80	885.40	28.18	71.80	133.00	275.40	22.23	124.40	28.50	270.30
		S4	25.65	925.00	300.00	883.90	25.01	83.90	45.00	237.40	21.66	105.90	67.30	252.70
		RR	—	—	—	—	21.44	94.70	60.30	125.9	19.99	38.90	29.70	65.60
	V3	S1	21.45	332.50	400.00	757.10	25.07	290.10	47.70	209.80	27.75	258.70	47.50	235.50
		S2	22.65	459.00	384.50	857.30	27.11	296.80	72.90	252.50	27.43	365.00	75.20	219.40
		S3	24.74	627.80	271.10	818.10	27.61	262.10	128.40	266.00	24.08	103.60	38.70	303.50
		S4	25.39	890.10	242.50	800.30	26.53	71.40	87.90	275.60	21.96	115.20	62.80	274.30
		RR	—	—	—	—	21.96	73.80	29.20	139.6	20.81	32.90	47.60	88.30

表2

表3

表4

各试验处理下水稻关键物候期"

生态点 Location	处理 Treatment	品种 Variety	播种期 Sowing date		移栽期 Transplanting date		拔节期 Jointing stage		齐穗期 Full heading stage		成熟期 Mature stage		再生稻成熟期 Mature of ratoon rice
生态点 Location	处理 Treatment	品种 Variety	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019
隆昌 Longchang	S1	V1	03-04	03-04	04-03	04-03	06-01	05-28	07-04	07-07	08-05	08-09	10-05	10-12
		V2	03-04	03-04	04-03	04-03	06-01	05-31	07-05	07-10	08-06	08-11	10-06	10-14
		V3	03-04	03-04	04-03	04-03	05-26	05-26	06-29	07-04	07-30	08-03	10-03	10-9
	S2	V1	03-14	03-19	04-13	04-20	06-07	06-10	07-08	07-18	08-12	08-17	—	—
		V2	03-14	03-19	04-13	04-20	06-09	06-12	07-10	07-20	08-14	08-20	—	—
		V3	03-14	03-19	04-13	04-20	06-02	06-07	07-03	07-14	08-08	08-14	—	—
	S3	V1	05-03	05-04	06-02	06-03	07-14	07-07	08-11	08-07	09-20	09-21	—	—
		V2	05-03	05-04	06-02	06-03	07-16	07-09	08-13	08-10	09-24	09-23	—	—
		V3	05-03	05-04	06-02	06-03	07-11	07-03	08-05	08-04	09-17	09-16	—	—
	S4	V1	05-13	05-19	06-12	06-18	07-20	07-16	08-16	08-16	09-28	10-04	—	—
		V2	05-13	05-19	06-12	06-18	07-21	07-18	08-18	08-20	09-30	10-06	—	—
		V3	05-13	05-19	06-12	06-18	07-17	07-13	08-12	08-15	09-25	10-01	—	—
犍为 Qianwei	S1	V1	03-10	03-10	04-09	04-09	06-02	06-02	07-12	07-11	08-12	8-12	10-15	10-16
		V2	03-10	03-10	04-09	04-09	06-03	06-04	07-13	07-13	08-13	08-15	10-16	10-19
		V3	03-10	03-10	04-09	04-09	05-29	06-01	07-05	07-07	08-9	08-10	10-13	10-13
	S2	V1	03-20	03-25	04-19	04-24	06-09	06-14	07-18	07-24	08-20	08-23	—	—
		V2	03-20	03-25	04-20	04-24	06-10	06-17	07-20	07-26	08-21	08-26	—	—
		V3	03-20	03-25	04-21	04-24	06-04	06-13	07-14	07-20	08-15	08-20	—	—
	S3	V1	04-30	05-10	05-30	06-09	07-07	07-13	08-10	08-12	09-17	09-29	—	—
		V2	04-30	05-10	05-31	06-09	07-08	07-16	08-11	08-16	09-18	10-03	—	—
		V3	04-30	05-10	06-01	06-09	07-03	07-10	08-05	08-11	09-11	09-27	—	—
	S4	V1	05-10	05-25	06-09	06-24	07-15	07-23	08-15	08-18	09-25	10-10	—	—
		V2	05-10	05-25	06-09	06-24	07-17	07-25	08-17	08-22	09-27	10-13	—	—
		V3	05-10	05-25	06-09	06-24	07-13	07-18	08-11	08-17	09-22	10-08	—	—

表4

表5

播期对再生稻次适宜区杂交籼稻产量的影响（2019年）"

品种 Variety	播期 Sowing date	有效穗数 Effective panicles (×10⁴·hm^-2)		每穗颖花数 Spikelet number per panicle		结实率 Seed setting rate (%)		千粒重 1 000-grain weight (g)		理论产量 Theoretical yield (t hm^-2)
品种 Variety	播期 Sowing date	隆昌 Longchang	犍为 Qianwei	隆昌 Longchang	犍为 Qianwei	隆昌 Longchang	犍为 Qianwei	隆昌 Longchang	犍为 Qianwei	隆昌 Longchang	犍为 Qianwei
川优 6203 Chuanyou 6203	S1	240.83a	238.89b	126.58c	166.54a	81.90a	76.96a	28.27b	28.35a	7.06a	8.65a
	S2	206.67b	244.44b	163.27b	149.40a	82.56a	76.39a	29.20a	28.97a	8.13a	8.03a
	S3	183.06c	194.44c	216.84a	152.90a	74.19b	62.6bc	27.12c	28.57a	8.00a	5.31b
	S4	185.63c	176.67c	216.58a	155.92a	67.37b	56.83c	27.34c	26.96b	7.36a	4.24b
	RR	222.22ab	311.11a	65.80d	55.69b	74.06b	65.76b	24.28d	25.38c	2.63b	2.90c
宜香优 2115 Yixiangyou 2115	S1	213.61a	205.56a	124.29b	154.70a	86.91a	85.77a	32.95a	33.29ab	7.58a	9.05a
	S2	197.50a	211.11a	137.48b	146.59a	88.91a	87.08a	33.01a	34.19a	7.95a	9.22a
	S3	166.67b	175.56b	194.50a	144.82a	76.43b	64.60b	33.31a	34.57a	8.22a	5.64b
	S4	165.83b	162.22b	186.21a	140.46a	76.37b	63.78b	33.05a	32.37bc	7.79a	4.71b
	RR	196.25a	166.67b	62.83c	66.06b	75.73b	65.71b	31.31b	31.68c	2.92b	2.36c
F优498 F you 498	S1	210.97a	202.22a	162.24c	196.82b	90.74a	91.07a	30.56a	28.73b	9.5ab	10.40a
	S2	198.06a	206.67a	180.21b	199.97b	88.52a	85.81a	30.59a	29.62ab	9.69a	10.45a
	S3	168.89b	171.11b	248.41a	227.23a	77.57b	66.40c	28.48b	30.06a	9.27ab	7.76b
	S4	153.75b	171.11b	255.97a	215.27ab	74.19b	62.52c	28.67b	28.93ab	8.38b	6.66b
	RR	155.14b	177.78b	80.07d	62.83c	74.03b	74.92b	25.42c	27.37c	2.34c	2.29c
	品种 Variety	26.92**	27.80**	349.38**	103.87**	23.23**	45.05**	90.31**	21.13**	94.38**	162.74**
	播期 Sowing date	22.56**	62.36**	73.80**	53.81**	6.84**	11.91**	507.32**	206.86**	9.75**	25.59**
	品种×播期 Variety× Sowing date	2.85*	14.71**	3.34**	4.63**	0.75	1.22	8.79**	0.90	1.70	3.08*

表5

表6

表7

表8

品种和播期对稻米食味品质的影响"

品种 Variety	播期 Sowing date	直链淀粉含量 Amylose content (%)		蛋白质含量 Protein content (%)		气味 Aroma		外观 Appearance		适口性 Palatability		滋味 Flavor		冷饭质地 Cold rice texture		综合评分 Comprehensive score
品种 Variety	播期 Sowing date	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019
川优 6203 Chuanyou 6203	S1	13.80d	15.15c	7.27a	8.06a	17.65a	17.47a	15.04bc	14.96b	20.90b	21.08b	18.18b	18.13b	3.84a	3.62b	75.62c	75.26b
	S2	14.01d	15.35c	5.65c	6.93b	17.65a	17.51a	15.55ab	15.79a	21.87ab	22.17a	18.48ab	18.54ab	3.75a	4.09a	77.30abc	78.11a
	S3	17.21c	19.45b	6.37b	7.3ab	17.54a	17.37a	15.68a	15.28ab	21.80ab	22.60a	18.73a	18.51ab	3.77a	3.68b	77.54ab	77.44a
	S4	19.16b	20.39b	7.27a	8.02a	17.18a	16.87b	14.99c	14.29c	21.79ab	21.71ab	18.74a	18.40b	3.60a	3.61b	76.29bc	74.89b
	RR	20.40a	22.83a	5.55c	6.74b	17.41a	17.53a	15.74a	15.25ab	22.70a	22.63a	18.82a	18.92a	3.76a	3.66b	78.43a	77.99a
	平均值 Average	16.92C	18.63C	6.42A	7.41A	17.49B	17.26A	15.40A	15.11B	21.81A	22.04A	18.59A	18.50A	3.74A	3.73A	77.04A	76.74A
宜香优 2115 Yixiangyou 2115	S1	14.42c	15.39c	7.25a	8.05a	17.83ab	17.12b	15.33ab	15.86ab	21.22a	21.85a	18.31b	18.68a	3.67ab	3.73b	76.36b	77.24ab
	S2	15.13c	16.30c	5.50b	6.68b	18.00a	17.23ab	15.27ab	16.09a	22.10a	22.23a	18.91a	18.78a	3.93a	4.27a	78.22a	78.61a
	S3	18.40b	20.06b	6.88a	7.93a	17.48b	17.00b	14.85b	15.65ab	21.65a	22.69a	18.97a	18.59a	3.71ab	3.66b	76.66ab	77.60ab
	S4	19.61b	19.96b	7.45a	7.94a	17.93ab	17.66a	15.29ab	14.95c	22.09a	21.90a	18.79a	18.65a	3.65ab	3.35c	77.75ab	76.51b
	RR	22.56a	25.26a	5.64b	6.39b	17.48b	17.11b	15.54a	15.46bc	22.22a	22.32a	18.64ab	18.79a	3.53b	3.55bc	77.41ab	77.24ab
	平均值 Average	18.02B	19.39B	6.54A	7.40A	17.74A	17.23A	15.26A	15.60A	21.86A	22.20A	18.73A	18.70A	3.70A	3.71A	77.28A	77.44A
F优498 F you 498	S1	20.05c	23.83b	6.33ab	6.96ab	17.73a	16.72b	14.52ab	14.24c	20.00c	20.47cd	17.79b	17.75c	3.19a	2.79b	73.23b	71.98b
	S2	19.73c	24.28b	5.21c	6.41b	17.20b	16.88ab	14.76ab	15.09ab	20.61bc	20.27d	18.31a	18.17bc	3.02ab	2.87b	73.90ab	73.27b
	S3	23.89b	28.54a	6.26b	7.12ab	17.18b	17.00ab	14.35b	15.20a	20.76bc	21.40bc	18.13ab	18.38ab	2.78b	3.31a	73.20b	75.29a
	S4	23.49b	28.32a	6.85a	7.49a	17.38ab	16.60b	14.83ab	14.52bc	21.23ab	21.59ab	18.07ab	18.05bc	2.70b	2.84b	74.21ab	73.60b
	RR	26.43a	28.49a	5.50c	6.57b	16.99b	17.20a	14.92a	14.25c	21.82a	22.35a	18.35a	18.72a	3.15a	3.41a	75.22a	75.93a
	平均值 Average	22.72A	26.69A	6.03B	6.91B	17.30B	16.84B	14.68B	14.66C	20.88B	21.22B	18.13B	18.21B	2.97B	3.04C	73.95B	74.02B

表8

表9

图1

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生态点 Ecological location	pH		有机质 Organic matter (g·kg^-1 )		全氮 Total N content (g·kg^-1 )		全磷 Total P content (g·kg^-1 )		全钾 Total K content (g·kg^-1 )		碱解氮 Available N (mg·kg^-1 )		速效磷 Available P (mg·kg^-1 )		速效钾 Available K (mg·kg^-1 )
生态点 Ecological location	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019
隆昌 Longchang	6.92	6.63	19.72	19.16	1.37	1.15	0.93	0.89	10.89	16.93	149.36	103.46	88.68	83.15	85.59	94.33
犍为 Qianwei	6.79	6.52	16.44	14.26	1.19	1.09	0.79	0.77	11.45	10.58	97.10	93.27	84.22	97.49	99.67	83.06

变异来源 Source of variation	直链淀粉含量 Amylose content		蛋白质含量 Protein content		气味 Aroma		外观 Appearance		适口性 Palatability		滋味 Flavor		冷饭质地 Cold rice texture		综合评分 Comprehensive score
变异来源 Source of variation	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019
生态点 Location	71.42**	155.81**	177.26**	19.07**	0.03	5.19*	30.68**	0.01	8.32**	0.40	19.50**	13.67**	2.64	1.35	16.39**	1.44
播期 Sowing date	145.66**	129.04**	48.76**	15.33**	2.92*	0.93	3.07*	11.92**	6.95**	7.20**	6.33**	5.47**	2.61*	9.30**	4.12**	9.94**
品种 Variety	253.01**	435.57**	9.38**	6.16**	8.08**	10.44**	21.39**	26.54**	11.36**	12.22**	21.47**	10.53**	73.08**	72.10**	44.04**	48.10**
生态点×播期 Location × Sowing date	16.71**	6.32**	18.70**	5.84**	1.69	1.90	5.18**	7.17**	2.28	5.76**	2.79*	4.12**	1.10	7.16**	3.12*	12.38**
生态点×品种 Location×Variety	3.91*	1.79	1.71	0.07	1.97	1.95	2.95	19.37**	3.02	1.75	0.34	5.24**	0.76	5.96**	2.19	12.32**
播期×品种 Sowing date × Variety	1.75	6.11**	1.21	1.34	1.39	3.02**	2.08	2.40*	0.45	2.01	0.99	1.13	1.68	6.78**	1.13	3.14**
生态点×播期×品种 Location×Sowing date×Variety	7.50**	4.83**	0.62	0.57	1.15	2.49*	1.84	1.91	0.46	1.10	3.03**	1.82	2.06	1.80	1.58	2.59*

生态点 Ecological location	播期 Sowing date	直链淀粉含量 Amylose content (%)		蛋白质含量 Protein content (%)		气味 Aroma		外观 Appearance		适口性 Palatability		滋味 Flavor		冷饭质地 Cold rice texture		综合评分 Comprehensive score
生态点 Ecological location	播期 Sowing date	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019	2018	2019
隆昌 Longchang	S1	14.49d	16.27d	6.77a	7.81a	17.73a	16.90a	14.93a	14.65c	20.79a	20.95c	18.05b	17.80b	3.54a	3.18d	75.02a	73.48b
	S2	14.49d	16.60d	4.55c	6.48b	17.46ab	17.06a	14.77ab	15.66a	21.19a	21.33bc	18.24ab	18.22a	3.54a	3.75ab	75.21a	76.02a
	S3	18.21c	20.53c	5.45b	6.89b	17.59ab	17.03a	14.93a	15.38ab	21.25a	22.64a	18.52a	18.50a	3.50a	3.78a	75.08a	77.34a
	S4	21.17b	22.33b	7.08a	7.75a	17.58ab	17.17a	14.45b	15.08bc	21.53a	22.42a	18.47a	18.45a	3.42a	3.39cd	75.45a	76.51a
	RR	23.01a	24.47a	4.43c	5.81c	17.22b	17.11a	15.15a	14.83c	21.47a	22.03ab	18.27ab	18.58a	3.58a	3.53bc	75.70a	76.08a
	平均值 Average	18.27B	20.04B	5.66B	6.95B	17.52A	17.05A	14.85A	15.12A	21.25B	21.87A	18.31B	18.31B	3.52A	3.53A	75.44B	75.88A
犍为 Qianwei	S1	17.69d	19.98d	7.13ab	7.57ab	17.75a	17.31a	15.00b	15.39ab	20.63c	21.32b	18.14b	18.57bc	3.59a	3.58a	75.12d	76.18b
	S2	18.09d	20.69d	6.36c	6.87c	17.77a	17.36a	15.63a	15.66a	21.86b	21.79b	18.89a	18.77ab	3.59a	3.73a	77.74ab	77.31ab
	S3	21.45b	24.84b	7.55a	8.01a	17.21b	17.21ab	14.99b	15.37ab	21.56b	21.82b	18.70a	18.49bc	3.34ab	3.33bc	75.80cd	76.22b
	S4	20.33c	23.45c	7.30a	7.89ab	17.42ab	16.91b	15.62a	14.10c	21.88b	21.05b	18.60a	18.29c	3.21b	3.14c	76.72bc	73.49c
	RR	23.24a	26.59a	6.7bc	7.32bc	17.36ab	17.46a	15.65a	15.14b	23.02a	22.84a	18.94a	19.04a	3.37ab	3.55ab	78.35a	78.03a
	平均值 Average	20.16A	23.11A	7.01A	7.53A	17.50A	17.25A	15.38A	15.13A	21.79A	21.76A	18.65A	18.63A	3.42A	3.47A	76.74A	76.25A

生育时期 Growth stage	气象因子 Meteorological factor	直链淀粉含量 Amylose content (%)	蛋白质含量 Protein content (%)	气味 Aroma	外观 Appearance	适口性 Palatability	滋味 Flavor	冷饭质地 Cold rice texture	综合评分 Comprehensive score
抽穗期—抽穗20 d Heading-The 20 days after heading	X1	-0.408**	0.117	0.154	0.087	-0.137	-0.077	0.137	0.012
	X2	-0.537**	0.067	0.191	0.041	-0.306*	-0.175	0.177	-0.073
	X3	-0.454**	0.083	0.183	0.063	-0.202	-0.112	0.142	-0.022
	X4	-0.338**	0.155	0.100	-0.063	-0.251	-0.177	0.046	-0.126
	X5	-0.258*	-0.015	0.197	0.064	0.041	0.065	0.133	0.111
	X6	-0.008	0.116	0.082	0.201	-0.065	0.148	0.114	0.102
抽穗20 d—成熟期 The 20 days after heading- Maturity	X1	-0.493**	-0.029	0.077	0.023	-0.466**	-0.356**	0.082	-0.218
	X2	-0.484**	-0.040	0.091	-0.043	-0.559**	-0.412**	0.031	-0.293*
	X3	-0.501**	-0.052	0.098	-0.004	-0.513**	-0.377**	0.065	-0.249
	X4	-0.327*	0.172	0.011	-0.159	-0.402**	-0.295*	-0.108	-0.285*
	X5	-0.417**	-0.206	0.098	-0.074	-0.319*	-0.295*	0.031	-0.183
	X6	-0.232	0.084	0.220	0.100	-0.244	-0.002	0.025	-0.021

播期对再生稻次适宜区杂交籼稻食味品质的影响

Effects of Sowing Dates on Eating Quality of Different Indica Hybrid Rice in the Sub-Suitable Region of Ratoon Rice

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