不同产量水平的杂交籼稻品种穴直播茎秆抗倒特性及其差异性比较

doi:10.3785/j.issn.1008-9209.2018.04.101

浙江大学学报（农业与生命科学版）

2019, Vol. 45

Issue (2): 143-156 DOI: 10.3785/j.issn.1008-9209.2018.04.101

作物栽培与生理

不同产量水平的杂交籼稻品种穴直播茎秆抗倒特性及其差异性比较

郭长春(

),张桥,孙永健(

),武云霞,徐徽,何艳,杨志远,马鹏,彭志芸,马均(

)

四川农业大学水稻研究所/作物生理生态及栽培四川省重点实验室，成都 611130

Comparison of stem lodging resistance characteristics and differences of indica hybrid rice cultivars with different yield levels in precision direct seeding

Changchun GUO(

),Qiao ZHANG,Yongjian SUN(

),Yunxia WU,Hui XU,Yan HE,Zhiyuan YANG,Peng MA,Zhiyun PENG,Jun MA(

)

Rice Research Institute of Sichuan Agricultural University/Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China

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摘要：

为明确不同生态区穴直播优质杂交籼稻高产品种茎秆抗倒特性及其共性特征，探明穴直播优质杂交籼稻抗倒能力与穗部构成、茎秆主要物理性状的相关性，本研究选取川西平原和川中丘陵2个稻作区为研究对象，以15个优质杂交籼稻品种为试验材料，人工模拟精量穴直播（以下简称“穴直播”）。通过对2个生态区各品种的平均籽粒产量进行聚类分析，将供试品种分为高产、中产、低产3种类型。在不同生态区中，较之中产、低产品种，高产品种单穗干质量4.56～5.35 g、一次枝梗数14.55～15.17、二次枝梗数49.58～60.67、N₁～N₃(基部至穗顶第1—3节间)节间长25.70～26.67 cm、重心高度53.97～59.37 cm、基部N₁～N₃平均节间粗度5.75～6.26 mm、节间茎壁厚度1.09～1.20 mm、平均茎干质量0.20～0.24 g、鞘干质量0.22～0.23 g，说明其茎秆充实度高，机械强度好，抗倒优势明显。高产品种穗部构成及茎秆物理性状的改善，使其茎秆抗折力明显增加，倒伏指数降低。相关分析表明：N₁、N₂、N₃节间抗折力与穗部一、二次枝梗数，单穗质量，着粒密度，籽粒产量，弯曲力矩，茎秆长度，重心高度，相对重心高度，节间粗度，茎壁厚度，秆型指数，扁平率，茎干质量，鞘干质量，单位节间干质量呈显著或极显著正相关，尤其与单位节间干质量的相关性最高（r=0.855～0.937）；而与节间长度呈极显著负相关。说明合理控制基部节间配置比例，注重提高茎壁厚和茎秆充实程度，是不同生态区穴直播优质杂交籼稻高产与抗倒伏协调统一的可靠途径。

关键词： 穴直播; 杂交籼稻品种; 产量类型; 茎秆物理性状; 差异性

Abstract:

To clarify the stem lodging resistance characteristics and common characteristics of high-yielding indica hybrid rice cultivars with good quality under precision direct seeding in different ecological areas, and furthermore, to investigate the correlation analysis between the lodging index, breaking resistance and panicle traits, main culm physical characteristics, this study selected two rice fields in the western Sichuan Plain and the middle Sichuan hills as the research objects, and 15 different indica hybrid rice cultivars were used as materials in the two ecological zones, and mechanized precise hill-seeding (the following referred to precision direct seeding) were artificially simulated. The results showed that by a cluster analysis based on average grain yield of each cultivar in the two zones, the 15 tested cultivars could be classified into three levels: high-yielding, medium-yielding, and low-yielding. In the different ecological areas, compared with medium-yielding and low-yielding cultivars, the high-yielding cultivars had high stem plumpness status, good mechanical strength and obvious lodging resistance advantages. Its dry mass of single ear was 4.56-5.35 g; the number of primary branches was 14.55-15.17; the number of secondary branches was 49.58-60.67; N₁-N₃ (the first to the third internode from the base) internode length was 25.70-26.67 cm; the gravity center height was 53.97-59.37 cm; the average internode thickness of the base N₁-N₃ was 5.75-6.26 mm; the internode culm wall thickness was 1.09-1.20 mm; the average stem mass was 0.20-0.24 g, and the sheath dry mass was 0.22-0.23 g. As a result of their improved spike composition and stalk physical characteristics, the comprehensive breaking resistance of the culm of high-yielding cultivars was improved evidently, and the lodging index reduced as well. Besides, the correlation analysis also showed that the breaking resistance of the 1st, 2nd, 3rd internodes had significant or extremely significant positive correlations with the number of first and second branches, single panicle mass, grain density, grain yield, bending moment, stem length, gravity center height, ratio of gravity center height to plant height, internode diameter, culm wall thickness, culm type index, flat rate, dry mass of culm, dry mass of leaf sheath, and dry mass of unit internode, especially with the highest dry mass of unit internode (r=0.855-0.937), while it showed a significant or very significant negative correlation with the internode length . It shows that reasonable control of the proportion of basal internodes and emphasis on improving the culm wall thickness and strengthening plumpness status of culm are reliable ways to harmonize the high yield and high lodging resistance of the high-quality indica hybrid rice cultivars.

Key words: precision direct seeding indica hybrid rice cultivars yield levels culm physical characteristics differences

收稿日期: 2018-04-10 出版日期: 2019-04-25

CLC:

S 511.2

基金资助: 国家重点研发计划“粮食丰产增效科技创新”重点专项(2016YFD0300506);四川省教育厅重点项目(16ZA0044);四川省学术和技术带头人培养支持经费(川人社办发〔2016〕183号);四川省育种攻关专项(2016NYZ0051)

通讯作者: 孙永健,马均 E-mail: changchuns1991@163.com;yongjians1980@163.com;majunp2002@163.com

作者简介: 郭长春(https://orcid.org/0000-0002-9643-705X), E-mail： changchuns1991@163.com|孙永健(https://orcid. org/0000-0003-4713-0753), Tel： +86-28-86290303, E-mail： yongjians1980@163.com|马均(https://orcid. org/0000-0001-6103-5635), Tel： +86-28-86290303, E-mail： majunp2002@163.com

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引用本文:

郭长春,张桥,孙永健,武云霞,徐徽,何艳,杨志远,马鹏,彭志芸,马均. 不同产量水平的杂交籼稻品种穴直播茎秆抗倒特性及其差异性比较[J]. 浙江大学学报（农业与生命科学版）, 2019, 45(2): 143-156.

Changchun GUO,Qiao ZHANG,Yongjian SUN,Yunxia WU,Hui XU,Yan HE,Zhiyuan YANG,Peng MA,Zhiyun PENG,Jun MA. Comparison of stem lodging resistance characteristics and differences of indica hybrid rice cultivars with different yield levels in precision direct seeding. Journal of Zhejiang University (Agriculture and Life Sciences), 2019, 45(2): 143-156.

链接本文:

http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2018.04.101 或 http://www.zjujournals.com/agr/CN/Y2019/V45/I2/143

表1 供试品种、生育时期及其生育期（2017）

地点 Site	品种 Cultivar		穗长 Panicle length/cm	每穗一次枝梗数 First branch number per panicle	每穗二次枝梗数 Second branch number per panicle	单穗干质量 Dry mass per panicle/g	着粒密度 Density of grain setting/ (grain/cm)	稻谷产量 Grain yield/ (t/hm²)
三台 Santai	高产 High yield	F优498 F you 498	29.20±0.26	15.67±0.50	65.83±0.29	4.47±0.26	6.28±0.10	10.52±0.14
	高产 High yield	隆两优1206 Longliangyou 1206	28.50±0.17	14.67±0.29	55.50±0.29	4.66±0.27	6.32±0.05	10.35±0.46
		平均 Average	28.85±0.13a	15.17±0.14a	60.67±0.14a	4.56±0.23a	6.30±0.07a	10.43±0.29a
	中产 Medium yield	隆两优1146 Longliangyou 1146	27.17±0.47	12.67±0.29	46.67±0.29	3.51±0.15	4.97±0.15	9.96±0.24
		绿优4923 Lüyou 4923	28.97±0.32	13.83±0.29	51.33±0.58	3.13±0.17	5.80±0.23	9.70±0.32
		天优华占 Tianyouhuazhan	25.90±0.52	13.17±0.29	52.33±0.76	3.15±0.15	6.09±0.35	9.70±0.24
		晶两优1377 Jingliangyou 1377	26.17±0.58	14.33±0.29	49.67±0.29	3.37±0.08	5.96±0.26	9.81±0.14
		宜香优1108 Yixiangyou 1108	30.33±0.29	13.00±0.58	52.33±0.29	3.85±0.10	5.73±0.20	9.53±0.05
		德优4923 Deyou 4923	28.33±0.29	14.17±0.29	54.50±0.29	4.01±0.07	4.65±0.19	9.54±0.07
		渝优7109 Yuyou 7109	28.17±0.58	14.67±0.58	42.83±0.76	3.36±0.50	5.94±0.16	9.11±0.19
		宜香优2115 Yixiangyou 2115	29.63±0.51	12.17±0.76	44.50±0.29	3.87±0.21	5.47±0.20	9.20±0.22
		德优4727 Deyou 4727	30.73±0.68	12.83±0.29	33.17±0.29	3.55±0.23	5.12±0.18	9.37±0.26
		内5优39 Nei 5 you 39	28.17±0.31	12.00±0.58	46.50±0.50	2.84±0.31	5.09±0.04	9.11±0.34
		平均 Average	28.36±0.15b	13.28±0.03b	47.38±0.20b	3.46±0.03b	5.48±0.06b	9.50±0.13b
	低产 Low yield	宜香4245 Yixiang 4245	29.73±0.71	12.67±0.50	44.83±0.29	2.88±0.63	5.60±0.15	8.63±0.01
		宜香优7633 Yixiangyou 7633	28.17±0.31	11.17±0.29	36.17±0.58	2.66±0.32	5.42±0.05	8.74±0.33
		川优6203 Chuanyou 6203	29.07±0.67	13.33±0.29	48.00±0.50	3.37±0.80	5.52±0.40	8.84±0.11
		平均 Average	28.99±0.05a	12.39±0.25c	43.00±0.33c	2.97±0.50b	5.51±0.09b	8.74±0.11c
崇州 Chongzhou	高产 High yield	F优498 F you 498	31.52±0.10	14.50±0.87	48.67±0.76	5.53±0.47	6.12±0.02	10.36±0.52
	高产 High yield	隆两优1206 Longliangyou 1206	27.90±0.87	14.60±0.52	50.50±0.29	5.18±0.30	6.07±0.08	10.17±0.12
		平均 Average	29.71±0.38b	14.55±0.17a	49.58±0.38a	5.35±0.37a	6.10±0.03a	10.27±0.40a
	中产 Medium yield	隆两优1146 Longliangyou 1146	29.63±0.63	10.00±1.15	40.33±0.29	3.95±0.47	4.89±0.15	9.65±0.26
		绿优4923 Lüyou 4923	30.55±0.56	13.50±0.29	41.83±0.29	3.63±0.14	5.91±0.14	9.91±0.05
		天优华占 Tianyouhuazhan	27.60±0.74	13.00±1.15	47.83±0.76	4.25±0.22	6.00±0.04	9.69±0.40
		晶两优1377 Jingliangyou 1377	27.93±0.40	12.50±0.29	44.67±0.29	4.01±0.32	5.90±0.22	9.39±0.15
		宜香优1108 Yixiangyou 1108	31.58±0.72	12.17±0.29	51.33±0.29	3.95±0.74	5.50±0.08	9.53±0.01
		德优4923 Deyou 4923	28.75±0.68	12.83±0.29	37.33±0.29	4.51±0.25	5.63±0.06	9.15±0.23
		渝优7109 Yuyou 7109	30.18±0.50	10.33±0.58	37.33±0.58	4.38±0.81	5.72±0.11	9.01±0.11
		平均 Average	29.46±0.11b	12.36±0.11b	42.95±0.08b	4.10±0.14b	5.65±0.02b	9.47±0.10b
	低产 Low yield	宜香优2115 Yixiangyou 2115	31.53±0.20	11.67±0.58	43.50±1.15	4.07±0.68	5.48±0.08	8.90±0.12
		德优4727 Deyou 4727	29.72±0.28	12.50±0.50	38.83±0.29	3.96±0.47	5.41±0.18	8.61±0.41
		内5优39 Nei 5 you 39	31.18±0.51	13.00±0.58	40.83±0.76	3.22±0.54	5.24±0.06	8.57±0.17
		宜香4245 Yixiang 4245	30.83±0.56	12.00±0.58	37.33±0.29	4.17±0.08	5.64±0.08	8.86±0.12
		宜香优7633 Yixiangyou 7633	31.42±0.19	11.50±0.29	38.17±0.58	3.56±0.34	4.86±0.21	8.42±0.43
		川优6203 Chuanyou 6203	29.35±0.45	13.50±0.29	38.50±0.29	4.01±0.20	5.63±0.28	8.22±0.35
		平均 Average	30.67±0.16a	12.05±0.05b	39.53±0.21c	3.83±0.21b	5.38±0.07c	8.59±0.04c
不同生态区配对t测验（t-值） Paired t test in different ecological zones (t-value)			－4.52^**	2.49^*	3.66^**	－7.14^**	－0.03	3.32^**

表2 不同产量类型杂交籼稻品种的稻谷产量及其穗部性状

地点 Site	品种 Cultivar		折断弯矩BR/(N·m)			弯曲力矩BM/(N·m)			倒伏指数LI/%
地点 Site	品种 Cultivar		N₁	N₂	N₃	N₁	N₂	N₃	N₁	N₂	N₃
不同生态区配对t-测验（t-值） Paired t test in different ecological zones (t-value)			7.77^**	2.70*	3.90^*	1.71	1.36	－0.70	－4.61^**	－2.29	－3.44*
三台 Santai	高产 High yield	F优498 F you 498	0.27±0.01a	0.19±0.01a	0.17±0.00a	0.29±0.00a	0.25±0.00a	0.19±0.00a	106.0±0.8e	127.7±0.7e	113.1±0.3e
		隆两优1206 Longliangyou 1206	0.26±0.00b	0.17±0.00b	0.15±0.02b	0.25±0.01b	0.22±0.00b	0.16±0.02b	99.6±0.4f	129.4±0.4d	111.0±0.6f
		平均 Average	0.26±0.02a	0.18±0.00a	0.16±0.01a	0.27±0.00a	0.23±0.02a	0.18±0.01a	102.8±0.6c	128.6±0.3c	112.0±0.5c
	中产 Medium yield	绿优4923 Lüyou 4923	0.20±0.02c	0.15±0.002cd	0.12±0.00c	0.24±0.02c	0.20±0.01c	0.15±0.01de	118.5±0.2c	136.8±0.9c	127.5±0.3b
		宜香优1108 Yixiangyou 1108	0.19±0.01d	0.14±0.01d	0.11±0.01d	0.25±0.01b	0.21±0.01b	0.16±0.01bc	132.3±0.6a	151.7±2.8a	141.0±0.7a
		平均 Average	0.20±0.02b	0.14±0.00b	0.11±0.01b	0.25±0.01b	0.21±0.01b	0.15±0.00b	125.4±0.4a	144.2±1.8a	134.2±0.5a
	低产 Low yield	川优6203 Chuanyou 6203	0.20±0.01c	0.14±0.00d	0.12±0.02cd	0.25±0.02bc	0.21±0.00bc	0.15±0.00cd	121.7±0.5b	146.7±1.4b	124.5±1.1c
		宜香4245 Yixiang 4245	0.21±0.02c	0.15±0.01c	0.12±0.01cd	0.24±0.01c	0.20±0.01c	0.14±0.02e	114.6±0.2d	129.6±1.1d	122.4±0.4d
		平均 Average	0.21±0.01b	0.15±0.02b	0.12±0.03b	0.25±0.00b	0.20±0.01b	0.15±0.01b	118.1±0.3b	138.1±1.1b	123.5±0.6b
崇州 Chong zhou	高产 High yield	F优498 F you 498	0.23±0.01a	0.17±0.00a	0.15±0.01a	0.27±0.00a	0.23±0.00a	0.19±0.01a	114.3±0.5f	136.2±0.6c	128.0±0.6cd
		隆两优1206 Longliangyou 1206	0.22±0.02b	0.17±0.01a	0.14±0.01b	0.27±0.01a	0.23±0.01a	0.17±0.01b	124.2±0.1e	136.4±0.3c	126.1±1.7d
		平均 Average	0.22±0.00a	0.17±0.02a	0.14±0.00a	0.27±0.02a	0.23±0.02a	0.18±0.02a	119.2±0.2c	136.3±0.2c	127.1±0.8c
	中产 Medium yield	绿优4923 Lüyou 4923	0.18±0.01c	0.14±0.03bc	0.10±0.02d	0.24±0.01b	0.19±0.01c	0.14±0.00d	134.8±0.8c	143.7±1.3b	142.6±0.2a
		宜香优1108 Yixiangyou 1108	0.18±0.02c	0.13±0.01c	0.11±0.01c	0.24±0.01b	0.20±0.02bc	0.15±0.00d	136.6±0.6a	150.1±0.7a	138.1±0.4b
		平均 Average	0.18±0.01b	0.13±0.01b	0.11±0.01b	0.24±0.01b	0.20±0.01b	0.15±0.02b	135.7±0.3a	146.9±0.8a	140.4±0.2a
	低产 Low yield	川优6203 Chuanyou 6203	0.17±0.01d	0.14±0.03bc	0.12±0.02c	0.24±0.02bc	0.20±0.03b	0.16±0.02c	135.7±0.2b	145.0±0.5b	137.1±0.4b
		宜香4245 Yixiang 4245	0.18±0.01c	0.14±0.01b	0.11±0.01c	0.23±0.01c	0.19±0.01c	0.14±0.00d	126.3±0.4d	137.1±0.8c	128.7±1.6c
		平均 Average	0.18±0.02b	0.14±0.00b	0.12±0.00b	0.23±0.00c	0.20±0.01b	0.15±0.01b	131.0±0.3b	141.1±0.6b	132.9±1.0b

表3 不同产量类型杂交籼稻品种基部各节间折断弯矩、节间弯矩和倒伏指数

地点 Site	品种 Cultivar			节间长 Internode length/cm					茎秆长 Stem length/cm	重心高度 GCH/cm	相对重心高度 RGCH/%
地点 Site	品种 Cultivar			N₁	N₂	N₃	N₄	N₅	茎秆长 Stem length/cm	重心高度 GCH/cm	相对重心高度 RGCH/%
不同生态区配对t测验(t-值) Paired t test in different ecological zones (t-value)				0.11	3.99^**	0.70	1.11	－1.99	－0.04	4.32^**	4.50^**
三台 Santai	高产 High yield		F优498 F you 498	3.40±0.52d	8.97±0.40c	13.33±0.29c	27.60±0.79a	39.23±0.23a	92.53±0.31a	57.07±0.51b	47.55±0.77b
	高产 High yield		隆两优1206 Longliangyou 1206	4.63±0.23c	10.17±0.58b	12.83±0.58c	26.63±0.55a	36.03±0.06b	90.30±0.26c	61.67±0.76a	51.91±0.19a
			平均 Average	4.02±0.23c	9.57±0.49b	13.08±0.38c	27.12±0.57a	37.63±0.10a	91.42±0.28a	59.37±0.13a	49.73±0.31a
	中产 Medium yield	绿优4923 Lüyou 4923		6.43±0.40a	11.40±0.17a	14.53±0.06b	23.13±0.65bc	34.37±0.47c	89.87±0.06c	53.83±1.15d	45.30±0.58d
	中产 Medium yield	宜香优1108 Yixiangyou 1108		7.00±0.10a	11.80±0.17a	13.60±0.17c	23.90±0.46b	34.77±0.68c	91.07±0.40b	50.90±0.96e	42.63±0.31e
		平均 Average		6.72±0.21a	11.60±0.15a	14.07±0.08b	23.52±0.55b	34.57±0.43b	90.47±0.19b	52.37±0.96c	43.96±0.32c
	低产 Low yield	川优6203 Chuanyou 6203		6.67±0.29a	11.67±0.49a	15.73±0.68a	22.40±0.17c	34.83±0.58c	91.30±0.35b	55.50±0.40c	46.11±0.59cd
	低产 Low yield	宜香4245 Yixiang 4245		5.47±0.45b	11.00±0.46a	15.00±0.46ab	23.83±0.58b	34.97±0.57c	90.27±0.25c	55.70±0.44bc	46.42±0.26c
		平均 Average		6.07±0.12b	11.33±0.14a	15.37±0.18a	23.12±0.34b	34.90±0.22b	90.78±0.28b	55.60±0.31b	46.27±0.42b
崇州 Chong zhou	高产 High yield	F优498 F you 498		4.68±0.46bc	7.92±0.86c	12.18±0.63c	26.20±0.97a	39.42±0.15b	90.40±0.09bc	52.83±0.75b	43.79±0.55b
	高产 High yield	隆两优1206 Longliangyou 1206		4.08±0.49c	9.28±0.20b	13.23±0.10bc	26.42±0.58a	40.90±0.62a	93.92±0.42a	55.10±0.87a	45.18±0.80a
		平均 Average		4.39±0.28b	8.60±0.52c	12.71±0.28b	26.31±0.77a	40.16±0.35a	92.16±0.17a	53.97±0.69a	44.49±0.59a
	中产 Medium yield	绿优4923 Lüyou 4923		6.07±0.83ab	10.57±0.42a	14.92±0.53a	22.75±1.00b	35.22±0.60d	89.52±0.23c	50.68±0.43c	42.35±1.09c
	中产 Medium yield	宜香优1108 Yixiangyou 1108		7.03±0.89a	11.27±0.53a	13.65±1.04b	24.87±0.92a	33.93±0.83e	90.75±0.69b	50.22±0.68c	41.95±0.17c
		平均 Average		6.55±0.63a	10.92±0.18a	14.29±0.75a	23.81±0.60b	34.58±0.40c	90.13±0.32b	50.45±0.49b	42.15±0.59b
	低产 Low yield	川优6203 Chuanyou 6203		5.77±1.35ab	9.58±0.15b	14.90±0.48a	22.38±0.67b	37.35±0.23c	90.00±0.67bc	47.40±0.26d	39.82±0.60d
	低产 Low yield	宜香4245 Yixiang 4245		5.77±0.24ab	10.57±0.10a	15.02±0.56a	22.40±0.64b	37.22±0.64c	90.95±0.52b	48.25±0.44d	39.84±0.32d
		平均 Average		5.77±0.78a	10.08±0.04b	14.96±0.09a	22.39±0.36c	37.29±0.42b	90.48±0.24b	47.83±0.20c	39.83±0.24c

表4 不同产量类型杂交籼稻品种节间长及重心高度

地点 Site	品种 Cultivar		节间粗度 Internode diameter/mm				茎壁厚度 Culm thickness/mm
地点 Site	品种 Cultivar		N₁	N₂	N₃		N₁	N₂	N₃
三台 Santai	高产 High yield	F优498 F you 498	7.16±0.22a	6.41±0.24a	5.74±0.47a		1.34±0.01a	1.20±0.05a	1.08±0.06a
	高产 High yield	隆两优1206 Longliangyou 1206	6.74±0.12b	5.83±0.13b	5.66±0.11a		1.31±0.01b	1.17±0.05a	1.06±0.06a
		平均 Average	6.95±0.12a	6.12±0.13a	5.70±0.18a		1.33±0.06a	1.19±0.06a	1.07±0.05a
	中产 Medium yield	绿优4923 Lüyou 4923	6.50±0.06bc	5.85±0.18b	4.95±0.01b		1.24±0.01c	1.07±0.03b	1.05±0.04a
	中产 Medium yield	宜香优1108 Yixiangyou 1108	6.52±0.25bc	5.44±0.19c	4.99±0.23b	1.20±0.01d	0.90±0.06c	0.75±0.05b
		平均 Average	6.51±0.16b	5.65±0.16b	4.97±0.12b	1.22±0.01b	0.98±0.04b	0.90±0.03b
	低产 Low yield	川优6203 Chuanyou 6203	6.19±0.22cd	5.32±0.25c	5.03±0.07b	1.15±0.06e	0.82±0.06d	0.69±0.05b
	低产 Low yield	宜香4245 Yixiang 4245	6.06±0.03d	5.26±0.04c	4.51±0.46b	0.98±0.02f	0.81±0.01d	0.75±0.05b
		平均 Average	6.13±0.12c	5.29±0.13c	4.77±0.23b	1.06±0.01c	0.82±0.03c	0.72±0.01c
崇州 Chongzhou	高产 High yield	F优498 F you 498	6.43±0.27a	5.56±0.14a	5.28±0.38a		1.24±0.03a	1.14±0.02a	0.89±0.01a
	高产 High yield	隆两优1206 Longliangyou 1206	6.35±0.32ab	5.59±0.17a	5.29±0.14a		1.28±0.01a	1.12±0.04a	0.85±0.03a
		平均 Average	6.39±0.13a	5.58±0.07a	5.29±0.13a		1.26±0.01a	1.13±0.03a	0.87±0.01a
	中产 Medium yield	绿优4923 Lüyou 4923	6.00±0.16bc	5.15±0.02b	4.48±0.06b		1.17±0.02b	0.94±0.03b	0.76±0.05b
	中产 Medium yield	宜香优1108 Yixiangyou 1108	5.90±0.03c	4.68±0.21c	4.41±0.17b	1.10±0.06c	0.93±0.04b	0.66±0.04c
		平均 Average	5.95±0.09b	4.92±0.12b	4.45±0.08b	1.13±0.04b	0.93±0.01b	0.71±0.01b
	低产 Low yield	川优6203 Chuanyou 6203	5.78±0.08c	4.81±0.22bc	4.19±0.17b	1.05±0.02c	0.71±0.01c	0.58±0.01d
	低产 Low yield	宜香4245 Yixiang 4245	5.14±0.16d	4.56±0.36c	4.08±0.46b	0.85±0.01d	0.69±0.03c	0.61±0.03cd
		平均 Average	5.46±0.05c	4.68±0.24b	4.14±0.14c	0.95±0.02c	0.70±0.02c	0.59±0.02c
不同生态区配对t测验(t-值) Paired t test in different ecological zones (t-value)			7.11^**	6.98^**	7.62^**	6.31^**	2.98^*	5.69^**

表5 不同产量类型杂交籼稻品种的节间粗度和茎壁厚度

地点 Site	品种 Cultivar			秆型指数 Culm type index/%				扁平率 Oblate rate/%				空腔面积 Cavity area/mm²
地点 Site	品种 Cultivar			N₁	N₂	N₃		N₁	N₂	N₃		N₁	N₂	N₃
不同生态区配对t测验(t-值) Paired t test in different ecological zones (t-value)				0.85	－4.74^**	－5.37^**		－1.33	2.86^*	4.46^**		5.94^**	4.63^**	3.62^*
三台 Santai	高产 High yield	F优498 F you 498		0.77±0.01a	0.69±0.01a	0.63±0.01a		13.75±0.41a	13.62±0.09a	12.22±0.65a		20.65±0.49c	23.77±1.04b	22.51±0.40bc
	高产 High yield	隆两优1206 Longliangyou 1206		0.78±0.01a	0.65±0.01b	0.60±0.01b		14.05±0.44a	13.89±0.51a	11.74±0.51a		19.13±0.40d	22.59±0.13c	21.41±0.32c
		平均 Average		0.78±0.01a	0.67±0.02a	0.61±0.01a		13.91±0.34a	13.76±0.30a	11.98±0.42a		19.89±0.42c	23.18±0.53c	21.96±0.12b
	中产 Medium yield	绿优4923 Lüyou 4923		0.73±0.01b	0.67±0.01ab	0.59±0.01b		12.75±0.62b	12.58±0.19b	10.85±0.35b		23.16±0.57b	24.89±0.27b	23.24±0.47b
	中产 Medium yield	宜香优1108 Yixiangyou 1108		0.72±0.04b	0.60±0.01c	0.55±0.01c	12.74±0.16b	12.23±1.13b	10.51±0.25b	22.31±0.58b	23.79±0.20b	20.14±1.01d
		平均 Average		0.72±0.03b	0.63±0.01b	0.57±0.01b	12.91±0.43a	12.40±0.49b	10.58±0.11b	22.73±0.48b	24.34±0.24b	21.69±0.37b
	低产 Low yield	川优6203 Chuanyou 6203		0.68±0.03c	0.58±0.03c	0.55±0.02c	10.14±0.63c	7.17±0.18d	8.11±0.67c	24.92±0.80a	29.10±0.93a	24.97±0.80a
	低产 Low yield	宜香4245 Yixiang 4245		0.67±0.01c	0.58±0.01c	0.50±0.01d	12.08±0.50b	8.99±0.46c	10.30±0.38b	25.39±0.41a	28.02±0.51a	25.95±0.83a
		平均 Average		0.67±0.01c	0.58±0.02c	0.53±0.01c	11.11±0.53b	8.08±0.15c	9.31±0.51c	25.15±0.57a	28.56±0.38a	25.46±0.80a
崇州 Chongzhou	高产 High yield	F优498 F you 498		0.78±0.01a	0.77±0.01a	0.75±0.01a		17.71±0.33a	11.78±0.40b	8.80±0.24b		17.29±0.68b	19.61±0.18d	17.71±0.32c
	高产 High yield	隆两优1206 Longliangyou 1206		0.73±0.02b	0.70±0.02b	0.68±0.01b		16.14±0.80b	12.67±0.26a	10.54±0.35a		17.82±0.41b	17.97±0.24e	16.17±0.50d
		平均 Average		0.75±0.01a	0.74±0.01a	0.72±0.01a		16.92±0.55a	12.22±0.18a	9.67±0.15a		17.55±0.19b	18.79±0.17b	16.94±0.23b
	中产 Medium yield	绿优4923 Lüyou 4923		0.67±0.02d	0.68±0.01c	0.65±0.01c		12.15±0.84d	8.11±0.74cd	8.19±0.53bc		17.78±0.35b	23.86±0.54a	23.17±0.50a
	中产 Medium yield	宜香优1108 Yixiangyou 1108		0.69±0.01c	0.66±0.01d	0.60±0.02d		11.81±0.29d	8.27±0.21c	7.90±0.25c		16.30±0.52c	20.01±0.45cd	18.74±0.12b
		平均 Average		0.68±0.01c	0.67±0.01b	0.62±0.01c		11.98±0.35b	8.19±0.48b	8.05±0.18b		17.04±0.14c	21.94±0.45a	20.95±0.31a
	低产 Low yield		川优6203 Chuanyou 6203	0.70±0.01c	0.68±0.01c	0.65±0.02c		13.26±0.50c	7.56±0.33de	7.85±0.55c		19.23±0.63a	20.63±0.29c	19.03±0.23b
	低产 Low yield		宜香4245 Yixiang 4245	0.70±0.01c	0.68±0.01c	0.67±0.01bc		11.45±0.13d	7.40±0.44e	7.92±0.08c		19.35±0.11a	22.82±0.57b	22.80±0.07a
			平均 Average	0.70±0.02b	0.68±0.01b	0.66±0.01b		12.35±0.24b	7.48±0.35c	7.89±0.29b		19.29±0.37a	21.72±0.14a	20.92±0.14a

表6 不同产量类型杂交籼稻品种的基部节间扁平率、空腔面积及秆型指数

地点 Site	品种 Cultivar			茎干质量 Dry mass of culm/ (mg/stem)				鞘干质量 Dry mass of sheath/ (mg/stem)				单位节间干质量 Dry mass of unit internode/ (mg/cm)
地点 Site	品种 Cultivar			N₁	N₂	N₃		N₁	N₂	N₃		N₁	N₂	N₃
不同生态区配对t测验(t-值) Paired t test in different ecological zones (t-value)				6.71^**	2.91^*	2.34		－1.94	1.52	－2.31		2.14	0.86	1.52
三台 Santai	高产 High yield	F优498 F you 498		0.18±0.01b	0.24±0.02b	0.27±0.01b		0.09±0.01b	0.23±0.01b	0.32±0.02b		52.42±0.31a	26.50±0.36a	19.80±0.77b
	高产 High yield	隆两优1206 Longliangyou 1206		0.20±0.00a	0.27±0.01a	0.29±0.03a		0.12±0.01a	0.27±0.00a	0.34±0.01a		44.05±0.48b	26.84±0.06a	22.51±0.42a
		平均 Average		0.19±0.01a	0.26±0.00a	0.28±0.01a		0.10±0.02a	0.25±0.01a	0.33±0.01a		48.24±0.27a	26.67±0.20a	21.15±0.37a
	中产 Medium yield		绿优4923 Lüyou 4923	0.14±0.01e	0.22±0.01c	0.24±0.01cd		0.04±0.01d	0.24±0.01b	0.25±0.01e		21.42±0.55e	19.59±0.44b	16.21±0.40c
	中产 Medium yield		宜香优1108 Yixiangyou 1108	0.15±0.01de	0.21±0.01d	0.19±0.02e	0.07±0.02c	0.19±0.01d	0.26±0.01d		20.88±0.37e	17.47±0.36c	13.60±0.25d
			平均 Average	0.14±0.01c	0.21±0.01b	0.21±0.01c	0.06±0.01c	0.21±0.02b	0.25±0.01c		21.15±0.37c	18.53±0.06b	14.91±0.31c
	低产 Low yield		川优6203 Chuanyou 6203	0.16±0.01bc	0.18±0.00e	0.25±0.01c	0.08±0.01b	0.21±0.01c	0.29±0.02c		24.43±0.42d	15.36±0.35d	15.72±0.45c
	低产 Low yield		宜香4245 Yixiang 4245	0.15±0.00cd	0.17±0.01e	0.23±0.01d	0.07±0.00c	0.15±0.01e	0.29±0.01c		28.06±0.39c	15.44±0.42d	15.86±0.37c
			平均 Average	0.16±0.00b	0.18±0.02c	0.24±0.02b	0.08±0.00b	0.18±0.01c	0.29±0.01b		26.24±0.38b	15.40±0.23c	15.79±0.16b
崇州 Chong zhou	高产 High yield		F优498 F you 498	0.14±0.01b	0.20±0.02b	0.24±0.01a		0.11±0.01a	0.20±0.01b	0.32±0.02b		30.77±0.86b	25.35±0.41a	20.05±0.42a
	高产 High yield		隆两优1206 Longliangyou 1206	0.16±0.00a	0.23±0.01a	0.25±0.03a		0.11±0.01a	0.22±0.00a	0.35±0.01a		38.35±0.75a	24.69±0.54a	18.51±0.21b
			平均 Average	0.15±0.01a	0.21±0.00a	0.25±0.01a		0.11±0.02a	0.21±0.01a	0.33±0.01a		34.56±0.07a	25.02±0.46a	19.29±0.26a
	中产 Medium yield		绿优4923 Lüyou 4923	0.12±0.01d	0.15±0.01d	0.21±0.01c		0.06±0.01d	0.16±0.01d	0.28±0.01d		19.49±0.54d	14.28±0.30d	13.74±0.10d
	中产 Medium yield		宜香优1108 Yixiangyou 1108	0.13±0.01c	0.16±0.01d	0.21±0.02c		0.09±0.02b	0.18±0.01c	0.31±0.01b		18.94±0.81d	14.22±0.50d	15.01±0.28c
			平均 Average	0.13±0.01b	0.16±0.01c	0.21±0.01b		0.08±0.01b	0.17±0.02c	0.29±0.01b		19.21±0.31c	14.25±0.40c	14.38±0.16b
	低产 Low yield		川优6203 Chuanyou 6203	0.12±0.01d	0.18±0.00c	0.23±0.01b		0.08±0.01c	0.19±0.01bc	0.31±0.02b		21.91±0.21c	19.22±0.24b	15.28±0.11c
	低产 Low yield		宜香4245 Yixiang 4245	0.13±0.00c	0.17±0.01c	0.21±0.01c		0.08±0.00c	0.19±0.01c	0.29±0.01c		21.99±0.50c	16.56±0.51c	13.71±0.62d
			平均 Average	0.12±0.00b	0.18±0.02b	0.22±0.02b		0.08±0.00b	0.19±0.01b	0.30±0.01b		21.95±0.34b	17.88±0.25b	14.50±0.35b

表7 不同产量类型杂交籼稻品种的茎鞘干质量

表8 基部节间抗折力和倒伏指数与穗部性状、茎秆主要物理性状的相关系数

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[1]	翟荣荣,余鹏,叶胜海,王俊梅,吴明国,林建荣,朱国富,张小明. 浙江省晚粳稻耐低氮品种的筛选和评价[J]. 浙江大学学报(农业与生命科学版), 2016, 42(5): 565-.

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