Crops ›› 2022, Vol. 38 ›› Issue (5): 42-48.doi: 10.16035/j.issn.1001-7283.2022.05.006

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Comprehensive Evaluation of Agronomic and Quality Traits of 16 New Oil Flax Lines

Hou Jingjing1(), Jin Fang2(), Zhao Li1(), Wang Bin1   

  1. 1Crop Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, Gansu, China
    2National Agricultural Technology Extension Service Center, Beijing 100125, China
  • Received:2022-01-17 Revised:2022-06-09 Online:2022-10-15 Published:2022-10-19

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Abstract:

In order to screen new oil flax (Linum usitatissimum L.) varieties and improve the breeding efficiency, the agronomic and quality traits of 16 new oil flax lines were measured and analyzed, and correlation analysis and comprehensive evaluation by DTOPSIS method were carried out with Zhangya 2 and Longya 13 as controls for two consecutive years. The results showed that among agronomic traits, the variation coefficient of plant height was the smallest and that of stem number was the largest. Among the quality traits, the variation coefficient of linoleic acid was the smallest and that of stearic acid was the largest. Correlation analysis showed that the capsule number per plant and the seeds weight per plant were extremely significantly positively correlated. The yield was significantly positively correlated with the capsule number per plant, the seeds weight per plant and plant height. Linolenic acid was significantly negatively correlated with stearic acid, palmitic acid and oleic acid. Crude fat was significantly positively correlated with stem number and the seeds weight per plant, and extremely significantly negatively correlated with stem length. DTOPSIS comprehensive evaluation and analysis showed that the Ci values of six new lines were greater than that of two control varieties, and line R104 was better than Zhangya 2 and lower than Longya 13; the comprehensive traits of the other nine lines were lower than two control varieties. We screened out the lines R161, R99, R46, R96, R104-1 and R41 with excellent comprehensive traits, high yield and good quality, which are suitable for planting in Northwest China.

Key words: Oil flax, New lines, Traits, DTOPSIS method, Comprehensive evaluation

Table 1

The difference of agronomic traits of new oil flax lines"

农艺性状
Agronomic trait		 年份
Year		 平均数
Mean		 标准差
Standard deviation		 最大值
Maximum		 最小值
Minimum		 极差
Range		 变异系数
Coefficient of variation (%)
株高Plant height (cm) 2019 60.68 6.66 73.86 48.93 24.93 10.98
2020 57.39 7.78 74.50 44.73 29.77 13.56
工艺长度Stem length (cm) 2019 30.46 5.99 41.53 19.17 22.36 19.68
2020 39.03 14.19 58.77 17.90 40.87 36.37
分茎数Stem number 2019 0.88 0.57 1.72 0.00 1.72 64.65
2020 0.91 0.57 2.13 0.13 2.00 62.69
分枝数Branch number 2019 5.21 1.55 8.13 2.49 5.64 29.72
2020 3.64 0.57 4.73 2.53 2.20 15.54
单株果数Capsule number per plant 2019 45.97 9.70 64.13 27.73 36.40 21.11
2020 27.81 9.31 44.07 13.07 31.00 33.47
单株粒重Seeds weight per plant (g) 2019 1.95 0.59 2.87 0.71 2.16 30.12
2020 1.45 0.55 2.61 0.63 1.98 37.91
千粒重1000-seed weight (g) 2019 5.94 1.02 8.60 5.05 3.55 17.14
2020 5.89 1.05 7.87 4.60 3.27 17.88
产量Yield (kg/hm2) 2019 1885.62 182.34 2172.84 1610.90 561.94 9.67
2020 1616.30 248.83 2082.92 1288.71 794.21 15.39

Table 2

The difference of quality traits of new oil flax lines"

品质性状
Quality trait		 年份
Year		 平均数
Mean		 标准差
Standard deviation		 最大值
Maximum		 最小值
Minimum		 极差
Range		 变异系数
Coefficient of variation (%)
粗脂肪Crude fat (%) 2019 39.79 1.59 43.42 37.48 5.94 4.00
2020 39.42 1.73 43.29 37.01 6.28 4.39
木酚素Lignans (mg/g) 2019 7.20 1.29 9.99 5.09 4.90 17.99
2020 7.38 1.17 9.97 5.77 4.20 15.80
亚麻酸Linolenic acid (%) 2019 52.10 4.19 59.59 40.61 18.98 8.04
2020 51.37 3.02 55.24 45.27 9.97 5.87
亚油酸Linoleic acid (%) 2019 14.08 0.53 14.93 13.14 1.79 3.74
2020 14.01 0.53 14.65 12.85 1.80 3.82
硬脂酸Stearic acid (%) 2019 3.92 0.77 5.83 2.97 2.86 19.75
2020 4.00 1.18 6.12 2.36 3.76 29.46
油酸Oleic acid (%) 2019 23.93 3.44 32.58 16.50 16.08 14.38
2020 24.39 2.06 28.06 20.59 7.47 8.43
棕榈酸Palmitic acid (%) 2019 5.87 0.26 6.41 5.34 1.07 4.46
2020 6.13 0.29 6.69 5.62 1.07 4.72

Fig.1

Correlation analysis of agronomic traits “*”means P < 0.05,“**”means P < 0.01, the same below"

Fig.2

Correlation analysis of quality traits"

Table 3

Correlation of agronomic traits and quality traits of different oil flax lines"

品质性状
Quality trait		 株高
Plant
height		 工艺长度
Stem
length		 分茎数
Stem
number		 分枝数
Branch
number		 单株果数
Capsule number
per plant		 单株粒重
Seeds weight
per plant		 千粒重
1000-seed
weight		 产量
Yield
粗脂肪Crude fat 0.284 -0.445** 0.535** -0.236 0.239 0.379* 0.159 0.313
木酚素Lignans 0.519** -0.384* 0.424* -0.409* 0.110 -0.001 -0.193 0.313
亚麻酸Linolenic acid -0.034 0.160 0.162 -0.019 0.087 0.174 0.101 -0.137
亚油酸Linoleic acid -0.023 0.222 -0.044 -0.088 0.013 -0.211 -0.101 0.003
硬脂酸Stearic acid 0.417* -0.614** 0.377* -0.133 0.198 0.383* 0.195 0.339*
油酸Oleic acid -0.176 0.108 -0.443** 0.155 -0.196 -0.365* -0.174 -0.032
棕榈酸Palmitic acid 0.037 -0.126 0.041 -0.054 -0.094 -0.001 -0.076 -0.281

Table 4

Comprehensive traits of new oil flax lines"

性状
Trait		 R25 R41 R46 R88 R96 R99 R103 R104 R104-1 R148 R148-1 R158 R161 R172 R173 R182 张亚2号
Zhangya 2		 陇亚13号
Longya 13
株高
Plant height (cm)		 57.75 54.15 57.22 52.59 63.33 63.81 56.74 60.13 55.65 52.53 53.22 59.80 67.44 74.18 55.52 60.47 61.83 56.27
工艺长度
Stem length (cm)		 39.75 36.85 40.87 38.17 20.06 20.62 42.42 47.05 42.40 36.97 38.32 43.12 19.45 24.68 41.67 41.50 27.65 23.82
分茎数
Stem number		 1.08 0.83 0.67 0.35 1.75 1.68 0.54 0.79 1.27 0.42 0.32 0.37 1.36 1.38 0.79 0.85 1.22 0.50
分枝数
Branch number		 4.57 5.72 4.12 4.13 3.20 3.61 6.03 4.43 4.33 4.97 4.34 4.45 2.51 3.85 5.15 5.82 4.19 4.22
单株果数
Capsule number
per plant		 40.27 39.97 35.77 25.87 44.08 45.01 36.50 33.02 35.92 34.92 31.65 28.89 33.28 44.95 40.75 44.70 37.50 30.93
单株粒重
Seeds weight
per plant (g)		 1.78 1.92 1.97 1.05 2.07 2.22 1.68 1.45 1.35 1.53 1.32 1.10 1.68 1.68 1.85 1.65 2.59 1.65
千粒重
1000-seed
weight (g)		 5.40 6.00 7.94 5.37 5.17 5.58 6.27 6.27 7.04 5.40 5.10 5.24 5.52 5.07 5.37 5.24 8.12 6.45
产量
Yield (kg/hm2)		 1472.28 1888.12 1899.36 1655.85 1884.37 1854.40 1520.98 1809.44 1899.36 1562.19 1554.70 1779.48 2116.64 1723.28 1569.68 1652.10 1723.28 1951.80
粗脂肪
Crude fat (%)		 37.25 39.33 39.64 38.40 43.35 43.29 39.62 39.95 40.14 38.72 38.54 38.89 38.77 39.85 39.67 37.54 40.84 39.14
木酚素
Lignans (mg/g)		 5.96 6.13 7.68 7.78 7.80 9.34 6.16 7.77 7.86 6.69 6.84 6.93 8.29 9.98 6.15 7.11 5.48 7.27
亚麻酸
Linolenic acid (%)		 55.01 47.35 51.79 52.24 51.03 56.39 54.36 52.56 52.50 52.57 53.34 48.62 52.86 46.44 53.11 53.03 54.78 43.29
亚油酸
Linoleic acid (%)		 13.74 13.24 14.48 14.32 14.18 14.54 13.96 14.73 14.73 14.17 14.06 14.45 13.54 14.06 14.56 13.52 13.00 13.62
硬脂酸
Stearic acid (%)		 3.01 4.54 3.65 2.72 4.87 5.10 3.67 3.53 3.47 3.46 2.77 3.88 3.80 5.22 2.88 3.64 5.12 5.98
油酸
Oleic acid (%)		 23.52 26.70 24.04 25.31 21.88 18.55 22.18 23.71 23.62 25.00 24.67 27.25 23.23 26.90 23.03 24.53 20.75 29.98
棕榈酸
Palmitic acid (%)		 6.03 6.45 5.98 6.18 6.13 5.96 6.13 5.67 5.69 5.71 5.90 5.80 5.76 6.34 5.93 6.00 6.12 6.25

Table 5

Comprehensive evaluation results by DTOPSIS method"

品系（种）
Line (variety)		 Si+ Si- Si++Si- Ci Ci排序
Ci rank
R25 0.1036 0.0367 0.1403 0.2617 17
R41 0.0519 0.0709 0.1227 0.5775 6
R46 0.0463 0.0724 0.1188 0.6100 3
R88 0.0846 0.0379 0.1225 0.3094 15
R96 0.0491 0.0765 0.1256 0.6089 4
R99 0.0469 0.0791 0.1260 0.6274 2
R103 0.0923 0.0446 0.1369 0.3259 14
R104 0.0590 0.0588 0.1178 0.4993 8
R104-1 0.0493 0.0706 0.1199 0.5886 5
R148 0.0902 0.0361 0.1263 0.2856 16
R148-1 0.0937 0.0318 0.1255 0.2533 18
R158 0.0713 0.0498 0.1210 0.4112 11
R161 0.0501 0.0959 0.1460 0.6569 1
R172 0.0707 0.0525 0.1233 0.4262 10
R173 0.0864 0.0428 0.1292 0.3312 13
R182 0.0799 0.0496 0.1295 0.3828 12
张亚2号Zhangya 2 0.0649 0.0618 0.1267 0.4877 9
陇亚13号Longya 13 0.0543 0.0730 0.1273 0.5732 7
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