Path Analysis of Yield and Yield Components of Elite Wheat Cultivars in Huainan Wheat Zone of Jiangsu

doi:10.11923/j.issn.2095-4050.cjasb18110012

Abstract

Abstract:

To determine the yield and yield components of elite wheat cultivars in Huainan Wheat Zone of Jiangsu, a total of six cultivars including ‘Yangmai16’, ‘Yangmai18’, ‘Yangmai20’, ‘Zhenmai12’, ‘Ningmai14’ and ‘Zhenmai168’ were used as materials. Correlation analysis and path analysis were carried out on grain yield and yield components of these materials in field. The results showed that the grain yield and yield components among cultivars had a great variation, the grain yield reached the significant level in some cultivars. ‘Yangmai20’ had the highest spike number, while ‘Yangmai18’ had the lowest. The spike number between ‘Yangmai20’ and ‘Zhenmai168’, and that between ‘Yangmai16’ and ‘Yangai18’ had no significant difference. While the spike number of the other cultivars had significant difference. ‘Zhenmai12’ had the highest grains per spike, while ‘Yangmai16’ had the lowest. ‘Yangmai20’, ‘Ningmai14’ and ‘Zhenmai168’ had no obvious difference. ‘Zhenmai12’ and ‘Ningmai14’ had no obvious difference, while the difference of other cultivars reached the significant level, the highest value appeared in ‘Zhenmai168’ and the lowest in ‘Yangmai20’. In general, the yield components and yield have a positive correlation, which reaches the significant or extremely significant level, the yield components promote the yield increase of different cultivars, but the effects of yield components of different cultivars on yield increase are different.

Key words: Wheat, Cultivar, Yield Components, Path Analysis

CLC Number:

S512.1

Cai Jinhua, Chen Wei. Path Analysis of Yield and Yield Components of Elite Wheat Cultivars in Huainan Wheat Zone of Jiangsu[J]. Journal of Agriculture, 2020, 10(8): 1-5.

Figures/Tables 3

References 28

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品种	穗数/(×10⁴/hm²)	穗粒数/粒	千粒重/g	籽粒产量/(kg/hm²)
扬麦16	487.26 d	37.94 c	38.20 d	5998.80 b
扬麦18	482.40 d	38.62 c	39.10 c	6278.40 a
扬麦20	547.74 a	41.17 b	36.90 e	5671.80 c
镇麦12号	522.00 b	44.58 a	41.20 b	6372.00 a
宁麦14	498.96 c	40.32 b	40.60 b	5439.60 d
镇麦168	546.66 a	41.16 b	41.90 a	5940.60 b
平均值	514.17	40.63	39.65	5950.20
标准差	29.01	2.35	1.91	353.92
CV/%	5.64	5.78	4.83	5.95

品种	穗数/(×10⁴/hm²)	穗粒数/粒	千粒重/g	籽粒产量/(kg/hm²)
扬麦16	487.26 d	37.94 c	38.20 d	5998.80 b
扬麦18	482.40 d	38.62 c	39.10 c	6278.40 a
扬麦20	547.74 a	41.17 b	36.90 e	5671.80 c
镇麦12号	522.00 b	44.58 a	41.20 b	6372.00 a
宁麦14	498.96 c	40.32 b	40.60 b	5439.60 d
镇麦168	546.66 a	41.16 b	41.90 a	5940.60 b
平均值	514.17	40.63	39.65	5950.20
标准差	29.01	2.35	1.91	353.92
CV/%	5.64	5.78	4.83	5.95

品种		相关系数
品种		x₁	x₂	x₃	y	P
扬麦16	x₁	1	-0.9398^**	-0.2049	-0.8533^**	0.0001
	x₂		1	-0.1910	0.7773^**	0.0004
	x₃			1	-0.1247	0.6455
扬麦18	x₁	1	0.0319	-0.5143^**	-0.1076	0.6916
	x₂		1	0.5979^**	0.5533^**	0.0262
	x₃			1	0.7161	0.0018
扬麦20	x₁	1	-0.1886	0.2455	0.3631	0.1669
	x₂		1	-0.1971	0.6817^**	0.0036
	x₃			1	0.0684	0.8014
镇麦12号	x₁	1	-0.5297^**	-0.1584	-0.4243	0.1014
	x₂		1	0.0981	0.6888^**	0.0032
	x₃			1	-0.2485	0.3534
宁麦14	x₁	1	-0.2672	0.2026	0.0040	0.9882
	x₂		1	-0.1605	0.5068^**	0.0451
	x₃			1	0.1481	0.5842
镇麦168	x₁	1	0.0785	0.0813	0.7742^**	0.0004
	x₂		1	0.0664	0.5011^**	0.0480
	x₃			1	-0.0440	0.8713
全部品种	x₁	1	-0.2776^**	-0.1843	-0.1483	0.1493
	x₂		1	-0.3976^**	0.3424^**	0.0006
	x₃			1	0.1817	0.0764

品种		相关系数
品种		x₁	x₂	x₃	y	P
扬麦16	x₁	1	-0.9398^**	-0.2049	-0.8533^**	0.0001
	x₂		1	-0.1910	0.7773^**	0.0004
	x₃			1	-0.1247	0.6455
扬麦18	x₁	1	0.0319	-0.5143^**	-0.1076	0.6916
	x₂		1	0.5979^**	0.5533^**	0.0262
	x₃			1	0.7161	0.0018
扬麦20	x₁	1	-0.1886	0.2455	0.3631	0.1669
	x₂		1	-0.1971	0.6817^**	0.0036
	x₃			1	0.0684	0.8014
镇麦12号	x₁	1	-0.5297^**	-0.1584	-0.4243	0.1014
	x₂		1	0.0981	0.6888^**	0.0032
	x₃			1	-0.2485	0.3534
宁麦14	x₁	1	-0.2672	0.2026	0.0040	0.9882
	x₂		1	-0.1605	0.5068^**	0.0451
	x₃			1	0.1481	0.5842
镇麦168	x₁	1	0.0785	0.0813	0.7742^**	0.0004
	x₂		1	0.0664	0.5011^**	0.0480
	x₃			1	-0.0440	0.8713
全部品种	x₁	1	-0.2776^**	-0.1843	-0.1483	0.1493
	x₂		1	-0.3976^**	0.3424^**	0.0006
	x₃			1	0.1817	0.0764

品种	自变量	直接通径关系	间接通径关系
品种	自变量	直接通径关系	x₁	x₂	x₃
扬麦16	x₁	1.1201		0.2026	0.0641
	x₂	0.2156	1.0527		-0.0598
	x₃	0.3130	0.2295	-0.0412
扬麦18	x₁	0.3498		0.0003	-0.4577
	x₂	0.0100	0.0112		0.5321
	x₃	0.8900	-0.1799	0.0060
扬麦20	x₁	0.4870		-0.1498	0.0259
	x₂	0.7943	-0.0919		0.0208
	x₃	0.1054	0.1196	-0.1566
镇麦12号	x₁	0.1319		-0.3452	0.0528
	x₂	0.6516	0.0699		-0.0327
	x₃	0.3333	0.0209	0.0639
宁麦14	x₁	0.1128		-0.1528	0.0440
	x₂	0.5718	-0.0301		-0.0348
	x₃	0.2170	0.0229	-0.0918
镇麦168	x₁	0.7497		0.0354	-0.0110
	x₂	0.4512	0.0589		-0.0090
	x₃	0.1349	0.0609	0.0300
全部品种	x₁	0.0707		-0.1449	-0.0741
	x₂	0.5220	-0.0196		-0.1600
	x₃	0.4023	-0.0130	-0.2076