安徽沿淮地区优质高产常规粳稻品种筛选及特征特性

doi:10.3724/SP.J.1006.2020.92044

作物学报 ›› 2020, Vol. 46 ›› Issue (4): 571-585.doi: 10.3724/SP.J.1006.2020.92044

安徽沿淮地区优质高产常规粳稻品种筛选及特征特性

卫平洋¹,裘实²,唐健¹,肖丹丹¹,朱盈¹,刘国栋¹,邢志鹏¹,胡雅杰¹,郭保卫¹,高尚勤³,魏海燕^1,^*(),张洪程^1,^*()

1 扬州大学江苏省作物遗传生理重点实验室 / 扬州大学农业部长江流域稻作技术创新中心 / 粮食作物现代产业技术协同创新中心, 江苏扬州 225009
2 江苏省农业科学院种质资源与生物技术研究所, 江苏南京 210014
3 安徽省凤台县农业技术推广中心, 安徽淮南 232100

收稿日期:2019-08-14 接受日期:2019-12-26 出版日期:2020-04-12 网络出版日期:2020-01-15
通讯作者: 魏海燕,张洪程
作者简介:E-mail: 2918052418@qq.com
基金资助:
本研究由国家重点研发计划项目(2016YFD0300503);江苏省重点研发计划项目(BE2016344);江苏省农业科技自主创新基金(CX[15]1002);扬州大学拔尖人才计划和江苏省农业三新工程资助(SXGC[2017]294)

Screening and characterization of high-quality and high-yield japonica rice varieties in Yanhuai region of Anhui province

WEI Ping-Yang¹,QIU Shi²,TANG Jian¹,XIAO Dan-Dan¹,ZHU Ying¹,LIU Guo-Dong¹,XING Zhi-Peng¹,HU Ya-Jie¹,GUO Bao-Wei¹,GAO Shang-Qin³,WEI Hai-Yan^1,^*(),ZHANG Hong-Cheng^1,^*()

1 Jiangsu Key Laboratory of Crop Genetics and Physiology / Innovation Center of Rice Cultivation Technology in Yangtze Valley, Ministry of Agriculture / Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, Jiangsu, China
2 Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, China
3 Extension Center of Agriculture Technology in Fengtai County of Anhui Province, Huainan 232100, Anhui, China

Received:2019-08-14 Accepted:2019-12-26 Published:2020-04-12 Published online:2020-01-15
Contact: Hai-Yan WEI,Hong-Cheng ZHANG
Supported by:
This study was supported by the National Key Research Program(2016YFD0300503);the Key Research Program of Jiangsu Province(BE2016344);the Major Independent Innovation Project in Jiangsu Province(CX[15]1002);the Program for Scientific Elitists of Yangzhou University, and the Three New Agricultural Engineering Fund of Jiangsu Province(SXGC[2017]294)

摘要/Abstract

摘要：

以74个常规粳稻品种(品系)为材料, 根据产量和食味值分为高产优质、高产不优质、中产优质和中产不优质4种类型。选用高产优质、高产不优质和中产优质3种类型共9个品种, 研究其产量、品质差异及其高产优质形成的特征特性, 以期为安徽沿淮地区适宜品种的筛选、种植推广提供科学依据和理论支撑。结果表明, 中产类型与高产类型粳稻在产量上有极显著差异, 2017年和2018年, 中产优质类型产量比高产优质类型、高产不优质类型分别低16.95%、16.76%和16.52%、16.33%。2017年, 与高产不优质类型相比, 高产优质类型和中产优质类型的直链淀粉含量分别低39.31%、42.63%; 胶稠度分别长22.06%、19.12%; 蛋白质含量分别低11.60%、17.78%。这些高产优质粳稻品种特征特性主要表现为, 产量在8.35~9.16 t hm ^-2, 单位面积穗数在310×10 ⁴~320×10 ⁴ hm ^-2之间, 每穗粒数在140左右, 千粒重在25 g以上; 食味值评分在60~74, 胶稠度长度在80~90 mm, 蛋白质含量在6%~8%。

关键词: 沿淮地区, 粳稻, 产量, 品质, 品种筛选

Abstract:

A field experiment was conducted with 74 conventional japonica rice varieties (lines), which were divided into four types according to the yield and taste value, i.e. high yield with good quality (HG), high yield with bad quality (HB), medium yield with good quality (MG), and medium yield with bad quality (MB). Among them, HG, HB, MG were weed to analyze their yield, quality differences and characteristics in HG formation, providing a scientific basis and theoretical support for screening, planting and extending the suitable varieties in Yanhuai area of Anhui province. The yield of MG was 16.95%, 16.76%, and 16.52%, 16.33% lower than that of HG type and HB type, respectively in 2017 and 2018. In 2017, compared with HB type, HG and MG types decreased by 39.31% and 42.63% in amylose content, increased by 22.06% and 19.12% in length of gel consistency, and decreased by 11.60% and 17.78% in protein content. The characteristics of these HG japonica rice varieties were mainly as follows: the yield was 8.35-9.16 t hm ^-2, the number of panicles per unit area was 310×10 ⁴-320×10 ⁴ hm ^-2, the grain number per panicle was around 140, the 1000-grain weight was over 25 g; the taste value was 60-74, the length of gel consistency was 80-90 mm, and the protein content was between 6% and 8%.

Key words: Yanhuai region, japonica rice, yield, quality, variety screening

卫平洋,裘实,唐健,肖丹丹,朱盈,刘国栋,邢志鹏,胡雅杰,郭保卫,高尚勤,魏海燕,张洪程. 安徽沿淮地区优质高产常规粳稻品种筛选及特征特性[J]. 作物学报, 2020, 46(4): 571-585.

WEI Ping-Yang,QIU Shi,TANG Jian,XIAO Dan-Dan,ZHU Ying,LIU Guo-Dong,XING Zhi-Peng,HU Ya-Jie,GUO Bao-Wei,GAO Shang-Qin,WEI Hai-Yan,ZHANG Hong-Cheng. Screening and characterization of high-quality and high-yield japonica rice varieties in Yanhuai region of Anhui province[J]. Acta Agronomica Sinica, 2020, 46(4): 571-585.

图/表 9

表1

表2

不同类型常规粳稻产量、食味值和生育期的差异"

品种类型 Type	品种数量 Number	品种名称 Cultivar	食味值Taste value		产量Yield (t hm^-2)		生育期 Growth period (d)
品种类型 Type	品种数量 Number	品种名称 Cultivar	均值 Mean	变幅 Variable amplitude	均值 Mean	变幅 Variable amplitude	生育期 Growth period (d)
高产优质 HG	16	南粳9108, 南粳505, 南粳5718, 宁9039, 武4610, 常软07-6, 常软07-1, 南粳2728, 镇稻99, 徐稻9号, 宁9003, 宁9022, 常软07-4, 常软07-3, 宁5720, 常软07-2 Nanjing 9108, Nanjing 505, Nanjing 5718, Ning 9039, Wu 4610, Changruan 07-6, Changruan 07-1, Nanjing 2728, Zhendao 99, Xudao 9, Ning 9003, Ning 9022, Changruan 07-4, Changruan 07-3, Ning 5720, Changruan 07-2	65	60-74	8.68	8.35-9.16	150-160
高产不优质 HB	15	武运5051, 扬育粳2号, 扬粳1612, 华粳8号, 连粳12, 宁粳040, 泗15-301, 华粳5号, 武运粳21, 镇9471, 连粳13, 连粳13264, 苏秀867, 连粳15, 武运5020 Wuyun 5051, Yangyujing 2, Yangjing 1612, Huajing 8, Lianjing 12, Ningjing 040, Si 15-301, Huajing 5, Wuyunjing 21, Zhen 9471, Lianjing 13, Lianjing 13264, Suxiu 867, Lianjing 15, Wuyun 5020	53	45-59	8.60	8.24-9.28	140-160
中产优质 MG	11	宁粳7号, 宁粳4号, 淮稻5号, 常软07-5, 福粳1606, 沪香粳165, 南繁1610, 南繁1605, 泗15-234, 苏香粳3号, 松早香1号 Ningjing 7, Ningjing 4, Huaidao 5, Changruan 07-5, Fujing 1606, Huxiangjing 165, Nanfan 1610, Nanfan 1605, Si 15-234, Suxiangjing 3, Songzaoxiang 1	65	63-69	7.57	6.88-8.05	135-155
中产不优质 MB	32	盐粳16, 丰粳3227, 新稻22, 圣稻18-15, 徐36618, 苏粳815, 连粳11, 泗稻14-211, 淮330, 南粳5711, 泰粳2340, 武运粳80, 华丰1502, 泰粳1152, 华粳295, 徐农33202, 南粳5833, 扬粳5515, 扬粳3491, 扬粳3012, 武运粳32, 武运粳27, 泗276, 泗稻15, 皖垦粳3号, 武粳004, 圣稻1647, 圣稻19, 圣稻20, 新科稻31, 日光, 连粳15113 Yanjing 16, Fengjing 3227, Xindao 22, Shengdao 18-15, Xu 36618, Sujing 815, Lianjing 11, Sidao 14-211, Huai 330, Nanjing 5711, Taijing 2340, Wuyunjing 80, Huafeng 1502, Taijing 1152, Huajing 295, Xunong 33202, Nanjing 5833, Yangjing 5515, Yangjing 3491, Yangjing 3012, Wuyunjing 32, Wuyunjing 27, Si 276, Sidao 15, Wankenjing 3, Wujing 004, Shengdao 1647, Shengdao 19, Shengdao 20, Xinkedao 31, Riguang, Lianjing 15113	50	40-59	7.25	5.51-7.96	135-155

表2

表3

表4

表5

表6

表7

表8

不同类型常规粳稻的RVA谱特征值"

品种类型 Type	品种名称 Cultivar	峰值黏度 Peak viscosity	热浆黏度 Trough viscosity	最终黏度 Final viscosity	崩解值 Breakdown	消减值 Setback	回复值 Consistence
2017
高产优质 HG	南粳9108 Nanjing 9108	2109	957	1729	1152	-380	772
	南粳505 Nanjing 505	2143	1066	1673	1077	-470	607
	徐稻9号Xudao 9	2244	1251	2037	993	-207	786
	平均值Mean	2165 Bb	1091 Bc	1813 Bb	1074 Aa	-352 Bb	722 Bc
高产不优质 HB	武运5051 Wuyun 5051	2315	1408	2452	907	137	1044
	扬粳1612 Yangjing 1612	2350	1464	2475	886	125	1011
	华粳8号Huajing 8	2245	1405	2455	840	210	1050
	平均值Mean	2303 ABb	1426 ABb	2461 Aa	878 Ab	157 Aa	1035 Aa
中产优质 MG	福粳1606 Fujing 1606	2872	1695	2665	1177	-207	970
	苏香粳3号Suxiangjing 3	2600	1656	2495	944	-105	839
	松早香1号 Songzaoxiang 1	2623	1628	2445	995	-178	817
	平均值Mean	2698 Aa	1660 Aa	2535 Aa	1039 Aa	-163 Bb	875 ABb
品种类型 Type	品种名称 Cultivar	峰值黏度 Peak viscosity	热浆黏度 Trough viscosity	最终黏度 Final viscosity	崩解值 Breakdown	消减值 Setback	回复值 Consistence
2018
高产优质 HG	南粳9108 Nanjing 9108	1910	797	1618	1113	-292	821
	南粳505 Nanjing 505	2449	1319	1774	1130	-575	555
	徐稻9号Xudao 9	2413	1536	2102	877	-311	568
	平均值Mean	2257 Aa	1217 Aa	1831 Ab	1040 Aa	-393 Bb	648 Bb
高产不优质 HB	武运5051 Wuyun 5051	2451	1649	2658	802	207	1009
	扬粳1612 Yangjing 1612	2565	1625	2633	940	68	1008
	华粳8号Huajing 8	2178	1381	2378	797	200	997
	平均值Mean	2398 Aa	1552 Aa	2556 Aa	846 Ab	158 Aa	1005 Aa
中产优质 MG	福粳1606 Fujing 1606	2718	1551	2338	1167	-380	787
	苏香粳3号Suxiangjing 3	2484	1349	2177	1135	-307	828
	松早香1号 Songzaoxiang 1	2764	1848	2558	916	-206	710
	平均值Mean	2655 Aa	1583 Aa	2358 Aa	1073 Aa	-298 Bb	775 ABb
年度间 Between years		ns	ns	ns	ns	ns	ns

表8

表9

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年份 Year	指标 Index		均值 Mean		变异系数 CV(%)
2017	食味值 Taste value	40-71	55	7.95	14.37
2017	产量 Yield (t hm^-2)	5.69-9.28	7.67	0.77	10.05
2018	食味值 Taste value	43-74	57	7.84	12.48
2018	产量 Yield (t hm^-2)	5.51-9.21	7.53	0.82	11.50

品种类型 Type	品种名称 Cultivar	单位面积穗数 No. of panicles (×10⁴ hm^-2)	每穗粒数Spikelets per panicle	结实率Seed-setting rate (%)	千粒重1000-grain weight (g)	产量 Yield (t hm^-2)
2017
高产优质 HG	南粳9108 Nanjing 9108	318.20	139.98	86.80	25.13	9.08
	南粳505 Nanjing 505	314.80	139.49	84.61	25.28	8.89
	徐稻9号Xudao 9	316.40	140.32	83.69	25.40	8.93
	平均值Mean	316.47 Ab	139.93 Aa	85.03 Aa	25.27 Aa	8.97 Aa
高产不优质 HB	武运5051 Wuyun 5051	320.40	140.33	84.91	24.58	8.80
	扬粳1612 Yangjing 1612	323.50	138.26	85.67	24.30	8.99
	华粳8号Huajing 8	324.10	136.34	83.81	25.28	9.05
	平均值Mean	322.67 Ab	138.31 Aa	84.80 Aa	24.72 Aab	8.95 Aa
中产优质 MG	福粳1606 Fujing 1606	345.00	112.80	82.47	23.50	7.54
	苏香粳3号Suxiangjing 3	396.55	91.50	82.39	23.53	7.03
	松早香1号 Songzaoxiang 1	346.80	109.50	82.38	24.93	7.79
	平均值Mean	362.78 Aa	104.60 Bb	82.41 Ab	23.99 Ab	7.45 Bb
2018
高产优质 HG	南粳9108 Nanjing 9108	319.20	138.78	86.20	25.85	9.15
	南粳505 Nanjing 505	310.75	137.00	85.53	25.90	8.98
	徐稻9号Xudao 9	311.45	138.02	85.46	25.25	8.93
	平均值Mean	313.80 Ab	137.93 Aa	85.73 Aa	25.67 Aa	9.02 Aa
高产不优质 HB	武运5051 Wuyun 5051	315.50	137.17	85.30	24.83	8.92
	扬粳1612 Yangjing 1612	319.20	137.95	84.82	25.35	9.02
	华粳8号Huajing 8	316.45	136.44	85.90	25.55	9.05
	平均值Mean	317.05 Ab	137.19 Aa	85.34 Aa	25.24 Aab	9.00 Aa
中产优质 MG	福粳1606 Fujing 1606	348.70	113.46	81.96	23.90	7.72
	苏香粳3号Suxiangjing 3	385.70	94.00	83.68	23.73	7.22
	松早香1号 Songzaoxiang 1	345.25	107.00	83.46	24.80	7.64
	平均值Mean	359.88 Aa	104.82 Bb	83.03 Ab	24.14 Ab	7.53 Bb

品种类型 Type	品种名称 Cultivar	糙米率 Brown rice rate	精米率 Milled rice rate	整精米率 Head milled rice rate
2017
高产优质 HG	南粳9108 Nanjing 9108	85.58	69.56	64.29
	南粳505 Nanjing 505	82.86	66.19	62.09
	徐稻9号Xudao 9	84.28	71.62	59.54
	平均值Mean	84.24 Aa	69.12 Aa	61.97 Aab
高产不优质 HB	武运5051 Wuyun 5051	82.24	64.69	63.19
	扬粳1612 Yangjing 1612	83.47	68.06	61.76
	华粳8号Huajing 8	83.33	72.09	64.38
	平均值Mean	83.01 Aa	68.28 Aa	63.11 Aa
中产优质 MG	福粳1606 Fujing 1606	83.25	69.58	58.80
	苏香粳3号Suxiangjing 3	84.68	69.39	60.03
	松早香1号 Songzaoxiang 1	84.03	70.58	57.12
	平均值Mean	83.99 Aa	69.85 Aa	58.65 Ab
2018
高产优质 HG	南粳9108 Nanjing 9108	84.93	70.94	64.06
	南粳505 Nanjing 505	83.22	66.70	62.37
	徐稻9号Xudao 9	84.28	69.75	60.13
	平均值Mean	84.14 Aa	69.13 Aa	62.19 Aab
高产不优质 HB	武运5051 Wuyun 5051	82.68	66.63	62.67
	扬粳1612 Yangjing 1612	83.64	66.88	62.01
	华粳8号Huajing 8	83.50	70.30	63.53
	平均值Mean	83.27 Aa	67.94 Aa	62.74 Aa
中产优质 MG	福粳1606 Fujing 1606	84.66	70.65	58.98
	苏香粳3号Suxiangjing 3	83.56	70.53	60.27
	松早香1号 Songzaoxiang 1	83.50	71.04	57.96
	平均值Mean	83.91 Aa	70.74 Aa	59.07 Ab
年度间 Between years		ns	ns	ns

品种类型 Type	品种名称 Cultivar	透明度 Transparency	长宽比Length-width ratio		垩白度 Chalkiness degree (%)
2017
高产优质 HG	南粳9108 Nanjing 9108	3	1.67	64.95	23.30
	南粳505 Nanjing 505	4	1.75	59.82	21.86
	徐稻9号Xudao 9	2	1.83	42.57	19.57
	平均值Mean	3 Aa	1.75 Aa	55.78 Aa	21.58 Aa
高产不优质 HB	武运5051 Wuyun 5051	3	1.76	49.46	18.73
	扬粳1612 Yangjing 1612	2	1.75	47.95	16.24
	华粳8号Huajing 8	2	1.93	22.73	8.15
	平均值Mean	2 Aa	1.81 Aa	40.05 Ab	14.37 Ab
中产优质 MG	福粳1606 Fujing 1606	3	1.70	45.02	18.68
	苏香粳3号Suxiangjing 3	4	2.03	66.85	23.75
	松早香1号 Songzaoxiang 1	3	2.35	49.31	18.77
	平均值Mean	3 Aa	2.03 Aa	53.73 Aa	20.40 Aab
2018
高产优质 HG	南粳9108 Nanjing 9108	3	1.71	67.05	25.80
	南粳505 Nanjing 505	5	1.74	61.86	22.85
	徐稻9号Xudao 9	3	1.89	42.83	20.34
	平均值Mean	4 Aa	1.78 Aa	57.25 Aa	23.00 Aa
高产不优质 HB	武运5051 Wuyun 5051	4	1.76	46.63	18.87
	扬粳1612 Yangjing 1612	3	1.73	46.28	19.79
	华粳8号Huajing 8	2	1.92	21.57	8.43
	平均值Mean	3 Aa	1.80 Aa	38.16 Ab	15.70 Ab
中产优质 MG	福粳1606 Fujing 1606	2	1.76	49.92	20.47
	苏香粳3号Suxiangjing 3	4	2.11	66.21	25.85
	松早香1号 Songzaoxiang 1	4	2.32	48.73	19.26
	平均值Mean	3 Aa	2.06 Aa	54.95 Aa	21.86 Aab
年度间 Between years		ns	ns	ns	ns

品种类型 Type	品种名称 Cultivar	直链淀粉含量 Amylose content (%)	胶稠度 Gel consistency (mm)	蛋白质含量 Protein content (%)
2017
高产优质 HG	南粳9108 Nanjing 9108	10.49	87	7.59
高产优质 HG	南粳505 Nanjing 505	10.43	82	7.05
品种类型 Type	品种名称 Cultivar	直链淀粉含量 Amylose content (%)	胶稠度 Gel consistency (mm)	蛋白质含量 Protein content (%)
	徐稻9号Xudao 9	13.87	81	7.40
	平均值Mean	11.60 Ab	83 Aa	7.35 Ab
高产不优质 HB	武运5051 Wuyun 5051	14.17	67	7.99
	扬粳1612 Yangjing 1612	16.32	71	7.64
	华粳8号Huajing 8	18.00	66	8.16
	平均值Mean	16.16 Aa	68 Bb	7.93 Aa
中产优质 MG	福粳1606 Fujing 1606	11.51	81	7.55
	苏香粳3号Suxiangjing 3	11.75	78	7.69
	松早香1号 Songzaoxiang 1	10.72	83	7.21
	平均值Mean	11.33 Ab	81 Aa	7.55 Aab
2018
高产优质 HG	南粳9108 Nanjing 9108	10.47	89	7.43
	南粳505 Nanjing 505	10.41	83	7.04
	徐稻9号Xudao 9	13.67	81	7.34
	平均值Mean	11.52 Ab	84 Aa	7.27 Ab
高产不优质 HB	武运5051 Wuyun 5051	13.91	65	7.90
	扬粳1612 Yangjing 1612	16.42	68	7.59
	华粳8号Huajing 8	17.84	65	8.10
	平均值Mean	16.06 Aa	66 Bb	7.86 Aa
中产优质 MG	福粳1606 Fujing 1606	11.20	80	7.69
	苏香粳3号Suxiangjing 3	11.51	78	7.83
	松早香1号 Songzaoxiang 1	10.82	82	7.56
	平均值Mean	11.18 Ab	80 Aa	7.69 Aab
年度间 Between years		ns	ns	ns

安徽沿淮地区优质高产常规粳稻品种筛选及特征特性

Screening and characterization of high-quality and high-yield japonica rice varieties in Yanhuai region of Anhui province

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品种类型 Type	品种名称 Cultivar	灌浆结实期 Grain filling period			灌浆结实期温光 Temperature and light in grain filling period
品种类型 Type	品种名称 Cultivar	抽穗期Jointing (month/day)	成熟期Heading (month/day)	天数 Days (d)	日平均温度 Mean daily temperature (℃)	积温 Accumulated temperature (℃)	日照时数Sunshine hours (h)	降雨量 Rainfall (mm)
高产优质 HG	南粳9108 Nanjing 9108	8/25	10/21	57	20.77	624.90	215.60	444.50
	南粳505 Nanjing 505	8/20	10/25	66	21.06	720.70	256.30	464.20
	徐稻9号Xudao 9	8/28	10/25	58	20.38	644.90	214.60	444.50
	平均值Mean	—	—	60 Aab	20.74 Aa	663.50 Aab	228.83 Aab	451.07 Aa
高产不优质 HB	武运5051 Wuyun 5051	8/22	10/24	63	20.93	699.70	236.10	464.20
	扬粳1612 Yangjing 1612	8/25	10/28	63	20.25	676.40	246.80	444.50
	华粳8号Huajing 8	8/22	10/25	64	20.85	705.10	239.50	464.20
	平均值Mean	—	—	63 Aa	20.68 Aa	693.73 Aa	240.80 Aa	457.63 Aa
中产优质 MG	福粳1606 Fujing 1606	8/26	10/19	54	20.45	603.61	201.30	425.00
	苏香粳3号Suxiangjing 3	8/18	10/11	54	20.29	598.85	214.80	418.60
	松早香1号 Songzaoxiang 1	8/20	10/9	50	20.15	517.65	205.70	396.10
	平均值Mean	—	—	53 Ab	20.30 Aa	573.37 Ab	207.27 Ab	413.23 Ab

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品种类型 Type	品种名称 Cultivar	食味值 Taste value	外观 Appearance	硬度 Hardness	黏度 Viscosity	平衡度 Balance degree
2017
高产优质 HG	南粳9108 Nanjing 9108	71	6.8	6.5	6.9	6.7
	南粳505 Nanjing 505	69	6.7	6.7	6.5	6.4
	徐稻9号Xudao 9	71	6.7	6.6	7.1	6.8
	平均值Mean	70 Aa	6.7 Aa	6.6 Bb	6.8 Aa	6.6 Aa
高产不优质 HB	武运5051 Wuyun 5051	58	5.3	7.2	4.5	4.7
	扬粳1612 Yangjing 1612	60	4.9	7.5	5.5	4.9
	华粳8号Huajing 8	59	4.9	7.5	5.4	4.9
	平均值Mean	59 Bb	5.0 Bb	7.4 Aa	5.1 Ab	4.8 Bb
中产优质 MG	福粳1606 Fujing 1606	69	6.8	6.6	6.4	6.4
	苏香粳3号Suxiangjing 3	71	7.0	6.5	7.3	7.1
	松早香1号 Songzaoxiang 1	67	6.5	6.6	5.9	6.1
	平均值Mean	69 Aa	6.8 Aa	6.6 Bb	6.5 Aa	6.5 Aa
2018
高产优质 HG	南粳9108 Nanjing 9108	68	6.3	6.8	6.5	6.3
	南粳505 Nanjing 505	73	7.0	6.3	6.9	7.4
	徐稻9号Xudao 9	71	6.5	6.5	6.8	7.2
	平均值Mean	71 Aa	6.6 Aa	6.5 Bb	6.7 Aa	7.0 Aa
高产不优质 HB	武运5051 Wuyun 5051	57	5.5	7.5	4.8	4.7
	扬粳1612 Yangjing 1612	59	5.4	7.3	5.8	4.5
	华粳8号Huajing 8	57	4.9	7.5	5.4	4.5
	平均值Mean	58 Bb	5.3 Bb	7.4 Aa	5.3 Ab	4.6 Bb
中产优质 MG	福粳1606 Fujing 1606	68	6.3	6.9	6.6	6.2
	苏香粳3号Suxiangjing 3	69	6.9	6.7	7.2	6.9
	松早香1号 Songzaoxiang 1	71	6.7	6.7	5.9	6.8
	平均值Mean	69 Aa	6.6 Aa	6.8 Bb	6.6 Aa	6.6 Aa
年度间 Between years		ns	ns	ns	ns	ns