Evaluation of the economic traits of nuts of 33 Corylus heterophylla×Corylus avellane Varieties(Lines)

doi:10.6048/j.issn.1001-4330.2024.02.014

Abstract

Abstract:

【Objective】 To understand the economic traits of different varieties(lines)of hazelnut, hoping to provide a reference basis for the evaluation of hazelnut resources and the excavation of germplasm resources, and also a scientific basis for the selection and breeding of excellent hazelnut varieties.【Methods】 Thirty-three different varieties(lines)of hazelnuts were studied in fruit, and their fruit economic traits were analyzed by principal component analysis, correlation analysis, cluster analysis and ranking to select varieties(lines)with good overall performance and potential for selection.【Results】 The nut mass of the test hazelnuts ranged from 1.36 to 3.26 g, the mean values of the three nut diameters ranged from 13.81 to 20.49 mm, the nut mass ranged from 0.30 to 1.26 g, the shell thickness ranged from 1.16 to 2.31 mm, the cavity coefficient ranged from 0.53 to 0.96, and the kernel yield ranged from 14.54% to 51.66%.The kernel yield ranged from 14.54% to 51.66%.Significant differences were found between nut, kernel and kernel yield traits, with coefficients of variation ranging from 6.15% to 55.30%.13 traits were highly correlated with each other, of which 16 pairs were highly significantly positively correlated, 12 pairs were highly significantly negatively correlated and 7 pairs were significantly negatively correlated.The hazelnuts were classified into five groups.【Conclusion】 The cavity coefficient, shell-kernel gap, kernel neatness, kernel yield and the mean value of the three kernel diameters are the main indicators affecting the economic traits of Pin-European hazelnut hybrids, which can be used as reference standards for the evaluation of the economic traits of different varieties(lines)of Pin-European hazelnut hybrids and the selection of good varieties.The varieties(lines)85-57, B-3, 84-310, 85-41, 85-83, 82-15, B-11 and 85-127 were screened for their superior overall nut economic traits.

Key words: Corylus heterophylla × Corylus avellana; fruit economic character; nut; kernel

摘要：

【目的】研究榛子不同品种(系)的经济性状,为榛子资源评价及种质资源的挖掘,榛子优良品种的选育提供科学依据。【方法】以盛果期33个品种(系)平欧杂种榛为研究对象,对其果实经济性状进行主成分、相关性和聚类分析以及等级划分,筛选综合表现优良且具有选育潜力的品种(系)。【结果】供试平欧杂种榛的坚果质量介于1.36~3.26 g,坚果三径均值介于13.81~20.49 mm,果仁质量介于0.30~1.26 g,果壳厚度介于1.16~2.31 mm,果腔系数介于0.53~0.96,出仁率介于14.54%~51.66%。坚果性状、果仁性状和出仁性状之间均存在显著差异,变异系数介于6.15%~55.30%。13个性状之间存在较高的相关性,其中有16对性状间呈极显著正相关,12对呈极显著负相关,7对呈显著负相关。供试平欧杂种榛划分为5个类群。【结论】果腔系数、壳仁间隙、果仁整齐度、出仁率和果仁三径均值是影响平欧杂种榛坚果经济性状的主要指标,可作为不同品种(系)平欧杂种榛坚果经济性状评价和良种选育的参考标准。筛选出85-57、B-3、84-310、85-41、85-83、82-15、B-11和85-127等品种(系)的坚果综合经济性状较优。

关键词: 平欧杂种榛, 经济性状, 坚果, 果仁

CLC Number:

S664.4

SONG Fenghui, WANG Lingzhe, LU Mingyan, SONG Zijun, LUO Da, SHI Yanjiang. Evaluation of the economic traits of nuts of 33 Corylus heterophylla×Corylus avellane Varieties(Lines)[J]. Xinjiang Agricultural Sciences, 2024, 61(2): 382-392.

宋锋惠, 王灵哲, 卢明艳, 宋子君, 罗达, 史彦江. 33个平欧杂种榛品种(系)坚果经济性状评价[J]. 新疆农业科学, 2024, 61(2): 382-392.

Figures/Tables 7

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品种(系) Species (line)	坚果性状Nut properties				果仁性状Kernel properties				出仁性状Out of kernel traits
	质量 Quality (g)	形状指数 Shape Index	三径均值 Mean value of three diameters (mm)	整齐度 Neatness(%)	质量 Quality (g)	形状指数 Shape Index	三径均值 Mean value of three diameters (mm)	整齐度 Neatness(%)	壳厚Shell thickness (mm)	果腔系数Fruit cavity factor	出仁率Kernel yield(%)	壳仁间隙Shell-kernel gap
	84-226	2.65±0.48	1.21±0.08	20.49±0.93	4.57		1.14±0.23	1.35±0.14	13.59±1.32	9.67		1.29±0.20	0.76±0.08	43.19±0.10	4.34±1.54
	85-140	3.26±0.39	1.07±0.04	19.75±0.71	3.63		1.24±0.13	1.22±0.12	14.29±0.74	5.36		1.69±0.28	0.88±0.05	37.98±0.03	2.11±0.81
	82-32	2.83±0.47	1.05±0.04	18.78±0.84	4.45		0.94±0.13	1.06±0.14	12.69±0.96	7.56		1.86±0.28	0.84±0.07	32.75±0.03	2.43±1.17
Nov-82	2.23±0.44	1.14±0.07	17.99±0.85	4.78	0.92±0.16	1.28±0.17	12.24±0.99	8.07	1.55±0.27	0.82±0.07	40.87±0.06	2.68±1.16
Apr-80	2.25±0.33	1.17±0.05	17.02±0.63	3.7	0.93±0.10	1.34±0.12	12.55±0.49	3.89	1.72±0.25	0.92±0.05	40.45±0.02	1.19±0.60
85-162	2.30±0.43	1.13±0.08	20.15±1.25	6.18	0.84±0.20	1.25±0.19	12.14±1.10	9.05	1.18±0.19	0.69±0.07	36.32±0.06	5.65±1.28
85-76	2.16±0.33	1.19±0.06	16.99±0.67	3.91	0.93±0.12	1.37±0.11	12.59±0.68	5.36	1.84±0.34	0.94±0.06	42.16±0.03	0.84±0.76
84-102	2.53±0.50	1.17±0.12	19.10±1.01	5.31	1.06±0.16	1.18±0.15	13.13±0.76	5.8	1.52±0.20	0.82±0.06	40.10±0.05	2.98±1.12
85-202	2.31±0.51	1.12±0.04	19.30±0.84	4.37	0.77±0.34	1.46±0.52	11.48±1.77	15.06	1.49±0.24	0.70±0.12	31.74±0.10	4.90±2.02
84-36	2.97±0.51	1.02±0.08	19.49±1.01	5.29	1.26±0.23	1.02±0.10	13.76±0.87	6.35	1.61±0.26	0.85±0.06	42.58±0.06	2.56±0.89
85-57	2.09±0.31	1.21±0.07	17.19±0.86	4.92	0.95±0.12	1.27±0.13	12.74±0.67	5.16	1.37±0.20	0.89±0.05	45.44±0.03	1.72±0.67
84-256	2.75±0.39	1.12±0.05	18.27±0.85	4.64	1.09±0.14	1.26±0.48	12.74±0.78	6.15	1.65±0.25	0.85±0.05	38.65±0.05	2.22±0.79
84-72	2.10±0.35	1.04±0.04	18.45±0.97	5.26	0.82±0.16	1.30±0.19	11.69±0.88	7.66	1.51±0.28	0.76±0.06	38.68±0.04	3.76±0.92
80-13	2.28±0.43	1.18±0.06	19.57±0.90	4.53	0.75±0.23	1.35±0.15	10.97±1.24	11.31	1.37±0.22	0.66±0.08	32.46±0.07	5.87±1.44
1月25日	2.45±0.48	1.09±0.07	18.40±1.18	6.47	1.00±0.21	1.19±0.14	12.79±0.98	7.77	1.49±0.25	0.84±0.08	41.41±0.07	2.63±1.32
82-15	1.86±0.29	1.26±0.04	16.29±0.51	3.13	1.00±0.13	1.32±0.12	12.57±0.51	4.03	1.16±0.16	0.90±0.04	51.66±0.05	1.44±0.53
84-310	2.24±0.30	1.18±0.06	17.53±0.62	3.53	0.98±0.15	1.48±0.95	12.41±0.62	5.05	1.52±0.23	0.86±0.06	44.55±0.07	2.10±0.87
81-21	2.11±0.43	1.14±0.05	18.76±1.22	6.48	0.91±0.17	1.34±0.17	12.96±0.95	7.31	1.36±0.28	0.81±0.05	43.27±0.04	3.09±0.85
B-11	1.91±0.19	1.19±0.06	16.28±0.58	3.58	0.92±0.08	1.28±0.14	12.58±0.55	4.36	1.28±0.19	0.92±0.04	48.40±0.16	1.16±0.58
84-545	2.36±0.48	1.18±0.09	18.50±0.92	5	1.07±0.21	1.36±0.20	13.33±0.98	7.41	1.32±0.20	0.84±0.05	44.73±0.03	2.58±0.84
Aug-82	2.85±0.49	1.10±0.06	19.30±0.82	4.25	1.07±0.16	1.29±0.14	13.18±0.65	4.91	1.95±0.29	0.85±0.05	36.02±0.04	2.37±0.78
B-21	2.02±0.23	1.29±0.07	19.66±0.63	3.21	0.30±0.16	1.91±0.46	8.77±1.38	15.72	1.53±0.23	0.53±0.09	14.54±0.07	7.78±1.61
85-119	2.36±0.44	1.18±0.06	19.59±0.97	4.92	0.84±0.26	1.34±0.38	11.34±1.68	14.76	1.38±0.22	0.68±0.11	34.46±0.08	5.51±2.01
85-88	3.11±0.37	1.00±0.04	19.97±0.62	3.1	1.18±0.19	1.09±0.16	13.49±0.97	7.16	1.72±0.27	0.82±0.07	37.50±0.05	3.12±1.27
85-41	2.42±0.37	1.03±0.05	18.27±0.72	3.9	1.12±0.18	1.07±0.07	13.17±0.90	6.75	1.52±0.39	0.87±0.07	46.50±0.03	2.07±1.10
84-376	1.96±0.34	1.18±0.07	16.74±0.99	5.93	0.76±0.17	1.35±0.21	11.75±0.80	6.82	1.41±0.18	0.85±0.06	39.05±0.04	2.17±0.86
85-127	1.69±0.32	1.20±0.06	16.07±0.99	6.19	0.83±0.12	1.29±0.14	12.26±0.87	7.08	1.17±0.21	0.89±0.07	48.67±0.04	1.53±1.08
B-3	2.22±0.24	1.07±0.05	17.43±0.67	4.38	1.01±0.11	1.16±0.11	12.90±0.64	4.96	1.41±0.23	0.89±0.05	45.41±0.03	1.76±0.71
85-83	2.04±0.33	1.08±0.04	17.13±0.78	4.55	0.95±0.17	1.21±0.13	12.28±0.88	7.1	1.36±0.16	0.86±0.05	46.82±0.07	2.14±0.75
84-263	2.41±0.47	1.12±0.04	18.86±1.16	6.13	0.97±0.19	1.31±0.15	12.88±0.97	7.54	1.48±0.25	0.81±0.06	41.18±0.04	3.03±0.94
Apr-82	2.55±0.43	1.20±0.06	19.26±0.78	4.03	0.99±0.22	1.36±0.15	12.77±1.09	8.58	1.66±0.30	0.81±0.13	36.54±0.06	3.09±0.70
N1	2.70±0.31	1.15±0.05	19.05±0.61	3.17	1.09±0.19	1.19±0.09	13.51±0.80	5.98	1.59±0.21	0.84±0.05	40.71±0.04	2.53±0.94
84-48	1.36±0.25	1.08±0.09	13.81±0.63	4.51	0.48±0.06	1.09±0.16	9.80±0.47	4.79	1.76±0.32	0.93±0.05	34.08±0.04	0.83±0.50
最大值	3.26	1.29	20.49	6.48	1.26	1.91	14.29	15.72	2.31	0.94	51.66	7.78
Maximum	3.26	1.29	20.49	6.48	1.26	1.91	14.29	15.72	2.31	0.94	51.66	7.78
最小值	1.36	1	13.81	3.1	0.3	1.02	8.77	3.89	1.16	0.53	14.54	0.83
Minimum
value
平均值	2.34	1.14	18.28	4.61	0.94	1.28	12.46	7.41	1.5	0.82	39.97	2.85
Average
value
标准差	0.4	0.07	1.45	1	0.19	0.16	1.09	2.99	0.2	0.09	6.75	1.58
Standard
deviation
变异系数	17.26	6.15	7.96	21.66	20.55	12.35	8.77	40.37	13.27	10.77	16.88	55.3
Coefficient of
variation(%)

品种(系) Species (line)	坚果性状Nut properties				果仁性状Kernel properties				出仁性状Out of kernel traits
	质量 Quality (g)	形状指数 Shape Index	三径均值 Mean value of three diameters (mm)	整齐度 Neatness(%)	质量 Quality (g)	形状指数 Shape Index	三径均值 Mean value of three diameters (mm)	整齐度 Neatness(%)	壳厚Shell thickness (mm)	果腔系数Fruit cavity factor	出仁率Kernel yield(%)	壳仁间隙Shell-kernel gap
	84-226	2.65±0.48	1.21±0.08	20.49±0.93	4.57		1.14±0.23	1.35±0.14	13.59±1.32	9.67		1.29±0.20	0.76±0.08	43.19±0.10	4.34±1.54
	85-140	3.26±0.39	1.07±0.04	19.75±0.71	3.63		1.24±0.13	1.22±0.12	14.29±0.74	5.36		1.69±0.28	0.88±0.05	37.98±0.03	2.11±0.81
	82-32	2.83±0.47	1.05±0.04	18.78±0.84	4.45		0.94±0.13	1.06±0.14	12.69±0.96	7.56		1.86±0.28	0.84±0.07	32.75±0.03	2.43±1.17
Nov-82	2.23±0.44	1.14±0.07	17.99±0.85	4.78	0.92±0.16	1.28±0.17	12.24±0.99	8.07	1.55±0.27	0.82±0.07	40.87±0.06	2.68±1.16
Apr-80	2.25±0.33	1.17±0.05	17.02±0.63	3.7	0.93±0.10	1.34±0.12	12.55±0.49	3.89	1.72±0.25	0.92±0.05	40.45±0.02	1.19±0.60
85-162	2.30±0.43	1.13±0.08	20.15±1.25	6.18	0.84±0.20	1.25±0.19	12.14±1.10	9.05	1.18±0.19	0.69±0.07	36.32±0.06	5.65±1.28
85-76	2.16±0.33	1.19±0.06	16.99±0.67	3.91	0.93±0.12	1.37±0.11	12.59±0.68	5.36	1.84±0.34	0.94±0.06	42.16±0.03	0.84±0.76
84-102	2.53±0.50	1.17±0.12	19.10±1.01	5.31	1.06±0.16	1.18±0.15	13.13±0.76	5.8	1.52±0.20	0.82±0.06	40.10±0.05	2.98±1.12
85-202	2.31±0.51	1.12±0.04	19.30±0.84	4.37	0.77±0.34	1.46±0.52	11.48±1.77	15.06	1.49±0.24	0.70±0.12	31.74±0.10	4.90±2.02
84-36	2.97±0.51	1.02±0.08	19.49±1.01	5.29	1.26±0.23	1.02±0.10	13.76±0.87	6.35	1.61±0.26	0.85±0.06	42.58±0.06	2.56±0.89
85-57	2.09±0.31	1.21±0.07	17.19±0.86	4.92	0.95±0.12	1.27±0.13	12.74±0.67	5.16	1.37±0.20	0.89±0.05	45.44±0.03	1.72±0.67
84-256	2.75±0.39	1.12±0.05	18.27±0.85	4.64	1.09±0.14	1.26±0.48	12.74±0.78	6.15	1.65±0.25	0.85±0.05	38.65±0.05	2.22±0.79
84-72	2.10±0.35	1.04±0.04	18.45±0.97	5.26	0.82±0.16	1.30±0.19	11.69±0.88	7.66	1.51±0.28	0.76±0.06	38.68±0.04	3.76±0.92
80-13	2.28±0.43	1.18±0.06	19.57±0.90	4.53	0.75±0.23	1.35±0.15	10.97±1.24	11.31	1.37±0.22	0.66±0.08	32.46±0.07	5.87±1.44
1月25日	2.45±0.48	1.09±0.07	18.40±1.18	6.47	1.00±0.21	1.19±0.14	12.79±0.98	7.77	1.49±0.25	0.84±0.08	41.41±0.07	2.63±1.32
82-15	1.86±0.29	1.26±0.04	16.29±0.51	3.13	1.00±0.13	1.32±0.12	12.57±0.51	4.03	1.16±0.16	0.90±0.04	51.66±0.05	1.44±0.53
84-310	2.24±0.30	1.18±0.06	17.53±0.62	3.53	0.98±0.15	1.48±0.95	12.41±0.62	5.05	1.52±0.23	0.86±0.06	44.55±0.07	2.10±0.87
81-21	2.11±0.43	1.14±0.05	18.76±1.22	6.48	0.91±0.17	1.34±0.17	12.96±0.95	7.31	1.36±0.28	0.81±0.05	43.27±0.04	3.09±0.85
B-11	1.91±0.19	1.19±0.06	16.28±0.58	3.58	0.92±0.08	1.28±0.14	12.58±0.55	4.36	1.28±0.19	0.92±0.04	48.40±0.16	1.16±0.58
84-545	2.36±0.48	1.18±0.09	18.50±0.92	5	1.07±0.21	1.36±0.20	13.33±0.98	7.41	1.32±0.20	0.84±0.05	44.73±0.03	2.58±0.84
Aug-82	2.85±0.49	1.10±0.06	19.30±0.82	4.25	1.07±0.16	1.29±0.14	13.18±0.65	4.91	1.95±0.29	0.85±0.05	36.02±0.04	2.37±0.78
B-21	2.02±0.23	1.29±0.07	19.66±0.63	3.21	0.30±0.16	1.91±0.46	8.77±1.38	15.72	1.53±0.23	0.53±0.09	14.54±0.07	7.78±1.61
85-119	2.36±0.44	1.18±0.06	19.59±0.97	4.92	0.84±0.26	1.34±0.38	11.34±1.68	14.76	1.38±0.22	0.68±0.11	34.46±0.08	5.51±2.01
85-88	3.11±0.37	1.00±0.04	19.97±0.62	3.1	1.18±0.19	1.09±0.16	13.49±0.97	7.16	1.72±0.27	0.82±0.07	37.50±0.05	3.12±1.27
85-41	2.42±0.37	1.03±0.05	18.27±0.72	3.9	1.12±0.18	1.07±0.07	13.17±0.90	6.75	1.52±0.39	0.87±0.07	46.50±0.03	2.07±1.10
84-376	1.96±0.34	1.18±0.07	16.74±0.99	5.93	0.76±0.17	1.35±0.21	11.75±0.80	6.82	1.41±0.18	0.85±0.06	39.05±0.04	2.17±0.86
85-127	1.69±0.32	1.20±0.06	16.07±0.99	6.19	0.83±0.12	1.29±0.14	12.26±0.87	7.08	1.17±0.21	0.89±0.07	48.67±0.04	1.53±1.08
B-3	2.22±0.24	1.07±0.05	17.43±0.67	4.38	1.01±0.11	1.16±0.11	12.90±0.64	4.96	1.41±0.23	0.89±0.05	45.41±0.03	1.76±0.71
85-83	2.04±0.33	1.08±0.04	17.13±0.78	4.55	0.95±0.17	1.21±0.13	12.28±0.88	7.1	1.36±0.16	0.86±0.05	46.82±0.07	2.14±0.75
84-263	2.41±0.47	1.12±0.04	18.86±1.16	6.13	0.97±0.19	1.31±0.15	12.88±0.97	7.54	1.48±0.25	0.81±0.06	41.18±0.04	3.03±0.94
Apr-82	2.55±0.43	1.20±0.06	19.26±0.78	4.03	0.99±0.22	1.36±0.15	12.77±1.09	8.58	1.66±0.30	0.81±0.13	36.54±0.06	3.09±0.70
N1	2.70±0.31	1.15±0.05	19.05±0.61	3.17	1.09±0.19	1.19±0.09	13.51±0.80	5.98	1.59±0.21	0.84±0.05	40.71±0.04	2.53±0.94
84-48	1.36±0.25	1.08±0.09	13.81±0.63	4.51	0.48±0.06	1.09±0.16	9.80±0.47	4.79	1.76±0.32	0.93±0.05	34.08±0.04	0.83±0.50
最大值	3.26	1.29	20.49	6.48	1.26	1.91	14.29	15.72	2.31	0.94	51.66	7.78
Maximum	3.26	1.29	20.49	6.48	1.26	1.91	14.29	15.72	2.31	0.94	51.66	7.78
最小值	1.36	1	13.81	3.1	0.3	1.02	8.77	3.89	1.16	0.53	14.54	0.83
Minimum
value
平均值	2.34	1.14	18.28	4.61	0.94	1.28	12.46	7.41	1.5	0.82	39.97	2.85
Average
value
标准差	0.4	0.07	1.45	1	0.19	0.16	1.09	2.99	0.2	0.09	6.75	1.58
Standard
deviation
变异系数	17.26	6.15	7.96	21.66	20.55	12.35	8.77	40.37	13.27	10.77	16.88	55.3
Coefficient of
variation(%)

性状指标 Characteristic indicators	坚果质量 Nut quality	坚果形状指数 Nut shape index	坚果三径均值 Nut tridimensional mean	坚果整齐度 Nut neatness	果仁质量 Kernel quality	果仁形状指数 Nut shape index	果仁三径均值 Nut tridimensional mean	果仁整齐度 Nut neatness	壳厚 Shell thickness	果腔系数 Fruit cavity factor	出仁率 Kernel rate	壳仁间隙 Shell- kernel gap
坚果质量 Nut quality	1
坚果形状指数 Nut shape index	-0.441^*	1
坚果三径均值 Nut tridimensional mean	0.755^**	-0.13	1
坚果整齐度 Nut neatness	-0.181	-0.113	0.024	1
果仁质量 Kernel quality	0.712^**	-0.399^*	0.32	-0.068	1
果仁形状指数 Nut shape index	-0.298	0.732^**	0.132	-0.159	-0.580^**	1
果仁三径均值 Nut tridimensional mean	0.647^**	-0.343	0.272	0.021	0.966^**	-0.555^**	1
果仁整齐度 Nut neatness	0.008	0.213	0.527^**	0.098	-0.477^**	0.537^**	-0.535^**	1
壳厚 Shell thickness	0.452^**	-0.418^*	0.069	-0.347^*	0.115	-0.189	0.08	-0.191	1
果腔系数 Fruit cavity factor	-0.081	-0.234	-0.653^**	-0.08	0.463^**	-0.578^**	0.520^**	-0.901^**	0.206	1
出仁率 Kernel rate	-0.139	-0.069	-0.409^*	0.135	0.589^**	-0.475^**	0.627^**	-0.675^**	-0.390^*	0.738^**	1
壳仁间隙 Shell-kernel gap	0.125	0.213	0.694^**	0.086	-0.409^*	0.538^**	-0.467^**	0.887^**	-0.224	-0.994^**	-0.712^**	1.00

性状指标 Characteristic indicators	坚果质量 Nut quality	坚果形状指数 Nut shape index	坚果三径均值 Nut tridimensional mean	坚果整齐度 Nut neatness	果仁质量 Kernel quality	果仁形状指数 Nut shape index	果仁三径均值 Nut tridimensional mean	果仁整齐度 Nut neatness	壳厚 Shell thickness	果腔系数 Fruit cavity factor	出仁率 Kernel rate	壳仁间隙 Shell- kernel gap
坚果质量 Nut quality	1
坚果形状指数 Nut shape index	-0.441^*	1
坚果三径均值 Nut tridimensional mean	0.755^**	-0.13	1
坚果整齐度 Nut neatness	-0.181	-0.113	0.024	1
果仁质量 Kernel quality	0.712^**	-0.399^*	0.32	-0.068	1
果仁形状指数 Nut shape index	-0.298	0.732^**	0.132	-0.159	-0.580^**	1
果仁三径均值 Nut tridimensional mean	0.647^**	-0.343	0.272	0.021	0.966^**	-0.555^**	1
果仁整齐度 Nut neatness	0.008	0.213	0.527^**	0.098	-0.477^**	0.537^**	-0.535^**	1
壳厚 Shell thickness	0.452^**	-0.418^*	0.069	-0.347^*	0.115	-0.189	0.08	-0.191	1
果腔系数 Fruit cavity factor	-0.081	-0.234	-0.653^**	-0.08	0.463^**	-0.578^**	0.520^**	-0.901^**	0.206	1
出仁率 Kernel rate	-0.139	-0.069	-0.409^*	0.135	0.589^**	-0.475^**	0.627^**	-0.675^**	-0.390^*	0.738^**	1
壳仁间隙 Shell-kernel gap	0.125	0.213	0.694^**	0.086	-0.409^*	0.538^**	-0.467^**	0.887^**	-0.224	-0.994^**	-0.712^**	1.00

因子 Factor	主成分 Principal Components
因子 Factor	F₁	F₂	F₃	F₄
坚果质量 Nut quality (g)	0.245	0.941	-0.069	0.147
坚果形状指数 Nut shape index	-0.461	-0.464	0.223	0.627
坚果三径均值 Nut tridimensional mean(mm)	-0.331	0.897	0.241	0.110
坚果整齐度 Nut neatness	-0.027	-0.083	0.591	-0.660
果仁质量 Kernel quality(g)	0.753	0.544	0.262	0.233
果仁形状指数 Nut shape index	-0.769	-0.204	-0.005	0.467
果仁三径均值 Nut tridimensional mean(mm)	0.778	0.469	0.311	0.228
果仁整齐度 Nut neatness	-0.872	0.275	0.136	-0.106
壳厚 Shell thickness (mm)	0.200	0.367	-0.843	-0.078
果腔系数 Fruit cavity factor	0.910	-0.354	-0.157	0.051
出仁率 Kernel rate(%)	0.778	-0.310	0.479	0.146
壳仁间隙 Shell-kernel gap	-0.881	0.398	0.194	-0.046
特征根 Eigenvalue	5.157	3.060	1.647	1.229
方差贡献率 Variance contribution value(%)	42.976	25.497	13.727	10.244
累计贡献率 Accumulated contribution rate(%)	42.976	68.473	82.200	92.444