Crops ›› 2022, Vol. 38 ›› Issue (1): 50-55.doi: 10.16035/j.issn.1001-7283.2022.01.007

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Genetic Diversity Analysis of Phenotypic Characteristics of Kenaf Resources in Zhejiang Province

Li Wenlue(), Chen Changli, Luo Xiahong, Liu Tingting, An Xia(), Jin Guanrong, Zhu Guanlin   

  1. Zhejiang Institute of Landscape Plants and Flowers, Zhejiang Academy of Agricultural Sciences (Zhejiang Xiaoshan Institute of Cotton and Bast Fiber Crops), Hangzhou 311251, Zhejiang, China
  • Received:2021-03-04 Revised:2021-04-26 Online:2022-02-15 Published:2022-02-16
  • Contact: An Xia E-mail:kobe1924@163.com;anxia@zaas.ac.cn

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Abstract:

In order to fully gain knowledge and effectively make use of the collected kenaf resources, 22 kenaf germplasms collected from Zhejiang province were systematically investigated and analyzed based on 16 yield and quality characteristics. The results showed that there was great variation among 22 Zhejiang kenaf resources, and the coefficient variation ranged from 3.49%-20.10%, and the largest coefficient variation was fibre strength. Principal component analysis indicated that the first three principal components were individual yield factor, population yield factor, fibre quality factor, which provided 80.753% information of original characters. The total of 22 Zhejiang kenaf resources could be divided into three categories while euclidean distance was 10, among which the first group was high-yield type, and the second group was high fibre strength. Subordinate function analysis showed that Zhe 1-96, Hangyou 1, ZHKX-01 and Zhe 4438 in the the first group had the potential of breeding high-yield germplasm.

Key words: Kenaf, Phenotypic characters, Genetic diversity, Principal component analysis, Cluster analysis

Table 1

The tested kenaf varieties (lines) and their origins"

编号
Code		 品种（系）
Variety (line)		 来源
Origin		 编号
Code		 品种（系）
Variety (line)		 来源
Origin
1 浙1-96 杭州市 12 浙38-2 杭州市
2 浙江2号 杭州市 13 浙367 杭州市
3 浙832 杭州市 14 浙45 杭州市
4 浙4438 杭州市 15 浙119 杭州市
5 浙431 杭州市 16 浙3039 杭州市
6 浙83-24 杭州市 17 浙3010 杭州市
7 浙241 杭州市 18 向阳1号 杭州市
8 浙8310 杭州市 19 航优1号 杭州市
9 浙83-13 杭州市 20 浙萧麻1号 杭州市
10 浙83-15 杭州市 21 ZH-01 杭州市
11 浙3091 杭州市 22 ZHKX-01 杭州市

Table 2

Descriptive statistics of the characters of Zhejiang kenaf resources"

性状
Trait		 最大值
Max.		 最小值
Min.		 极差
Range		 平均值
Mean		 标准差
Standard deviation		 变异系数
Coefficient of variation (%)
株高Plant height (cm) 402.93 346.00 56.93 377.64 13.18 3.49
茎粗Stem diameter (mm) 18.87 15.02 3.85 17.19 0.99 5.74
鲜皮厚Fresh bark thickness (mm) 1.22 0.89 0.33 1.05 0.09 8.22
单株鲜茎重Fresh stem weight per plant (g) 550.50 316.00 234.50 451.05 60.10 13.33
单株鲜皮重Fresh bark weight per plant (g) 257.00 147.75 109.25 209.85 28.83 13.74
单株干皮重Dry bark weight per plant (g) 49.50 28.50 21.00 40.97 5.31 12.96
单株纤维重Fibre weight per plant (g) 27.04 15.55 11.49 21.56 2.80 12.99
鲜茎干皮率Dry bark to fresh stem (%) 9.93 8.39 1.55 9.10 0.42 4.57
干皮精洗率Fibre ratio to dry bark (%) 57.30 48.21 9.09 52.69 2.14 4.07
单株鲜重Fresh weight per plant (g) 630.25 351.25 279.00 517.23 70.98 13.72
干皮产量Yield of dry bark (g) 8.28 4.17 4.11 6.37 1.04 16.39
精麻产量Yield of fibre (t/hm2) 4.52 2.23 2.29 3.36 0.56 16.58
生物量Biological yield (t/hm2) 25.98 12.75 13.23 19.62 3.42 17.45
有效株数Effective plant number (×104/hm2) 18.17 11.84 6.33 15.38 1.58 10.26
纤维支数Fibre count (g/m) 259.00 226.00 33.00 239.14 8.80 3.68
纤维强力Fibre strength (N) 452.00 205.00 247.00 273.82 55.02 20.10

Table 3

The component matrix and eigenvalues of the first three principal components in principal component analysis of Zhejiang kenaf resources"

性状
Trait		 主成分Principal component
1 2 3
单株鲜茎重Fresh stem weight per plant 0.983 0.095 0.068
单株鲜重Fresh weight per plant 0.983 0.075 0.015
单株鲜皮重Fresh bark weight per plant 0.980 0.005 0.074
单株干皮重Dry bark weight per plant 0.945 0.206 -0.110
单株纤维重Fibre weight per plant 0.924 0.220 0.094
茎粗Stem diameter 0.929 0.058 0.073
生物量Biological yield 0.650 0.746 -0.013
鲜皮厚Fresh bark thickness 0.838 -0.013 -0.028
精麻产量Yield of fibre 0.639 0.730 0.063
干皮产量Yield of dry bark 0.659 0.732 -0.100
株高Plant height 0.370 0.684 0.484
有效株数Effective plant number -0.222 0.884 0.013
纤维强力Fibre strength 0.063 0.099 0.760
纤维支数Fibre count -0.163 0.388 0.476
干皮精洗率Fibre ratio to dry bark -0.104 0.038 0.695
鲜茎干皮率Dry bark to fresh stem -0.274 0.300 -0.580
特征值Eigenvalue 8.543 2.604 1.774
贡献率Contribution rate (%) 53.391 16.273 11.089
累计贡献率
Cumulative contribution rate (%)		 53.391
69.664
80.753

Fig.1

Cluster diagram of Zhejiang kenaf resources based on yield and quality characteristics"

Table 4

The main characters of three group resources"

性状
Trait		 Ⅰ(n=72.7%) Ⅱ(n=4.6%) Ⅲ (n=22.7%)
平均值Average 范围Range 平均值Average 范围Range 平均值Average 范围Range
株高Plant height (cm) 380.41 359.35~402.93 382.05 – 367.88 346.00~385.95
茎粗Stem diameter (mm) 17.66 16.74~18.87 17.17 – 15.69 15.02~16.06
鲜皮厚Fresh bark thickness (mm) 1.09 1.00~1.22 0.98 – 0.94 0.89~0.98
单株鲜茎重Fresh stem weight per plant (g) 480.95 431.25~550.50 432.25 – 359.10 316.00~381.25
单株鲜皮重Fresh bark weight per plant (g) 223.59 190.00~257.00 197.50 – 168.35 147.75~177.00
单株干皮重Dry bark weight per plant (g) 43.71 40.00~49.50 36.13 – 33.15 28.50~35.63
单株纤维重Fibre weight per plant (g) 22.91 21.03~27.04 20.25 – 17.53 15.55~19.14
鲜茎干皮率Dry bark to fresh stem (%) 9.09 8.39~9.93 8.39 – 9.30 9.04~9.68
干皮精洗率Fibre ratio to dry bark (%) 52.40 48.21~57.30 56.05 – 52.94 49.18~54.55
单株鲜重Fresh weight per plant (g) 553.41 511.25~630.25 483.50 – 408.20 351.25~431.75
干皮产量Yield of dry bark (g) 6.82 5.54~8.28 5.30 – 5.18 4.17~6.07
精麻产量Yield of fibre (t/hm2) 3.57 2.86~4.52 2.97 – 2.74 2.23~3.26
生物量Biological yield (t/hm2) 21.08 17.77~25.98 16.56 – 15.57 12.75~17.85
有效株数Effective plant number (×104/hm2) 15.37 11.84~18.17 14.57 – 15.56 12.30~17.12
纤维支数Fibre count (g/m) 239.25 226.00~251.00 242.00 – 238.20 226.00~259.00
纤维强力Fibre strength (N) 271.44 212.00~329.00 452.00 – 245.80 205.00~331.00

Table 5

The subordinate function analysis of 16 characteristics in Zhejiang kenaf resources"

品种（系）
Variety (line)		 PH SD FBT FSW FBW DBW FW1 DBFS FRD FW2 TDBW TFW TBY EN FC FS 平均
Average		 排序
Ranking
1 0.956 1.000 0.864 1.000 1.000 1.000 1.000 0.349 0.705 1.000 1.000 1.000 0.948 0.698 0.455 0.259 0.827 1
2 0.712 0.813 0.560 0.855 0.826 0.875 0.829 0.384 0.581 0.861 0.908 0.871 0.925 0.706 0.030 0.170 0.682 3
3 0.527 0.581 0.565 0.732 0.728 0.750 0.504 0.392 0.000 0.731 0.539 0.370 0.491 0.352 0.636 0.255 0.510 16
4 0.682 0.598 0.688 0.559 0.611 0.548 0.642 0.345 1.000 0.573 0.525 0.609 0.629 0.572 0.606 0.445 0.602 5
5 0.437 0.445 0.620 0.587 0.465 0.792 0.754 0.984 0.599 0.645 0.453 0.439 0.439 0.228 0.636 0.328 0.553 8
6 0.437 0.619 0.357 0.617 0.572 0.613 0.563 0.324 0.549 0.642 0.561 0.530 0.544 0.597 0.667 0.028 0.514 14
7 0.602 0.746 0.881 0.909 0.938 0.869 0.751 0.244 0.386 0.961 0.333 0.277 0.379 0.000 0.394 0.283 0.560 7
8 0.563 0.773 0.807 0.677 0.753 0.738 0.651 0.534 0.454 0.680 0.652 0.591 0.525 0.488 0.000 0.470 0.585 6
9 0.459 0.937 0.544 0.765 0.785 0.637 0.584 0.002 0.542 0.760 0.547 0.515 0.518 0.503 0.121 0.283 0.531 12
10 0.633 0.556 0.286 0.496 0.455 0.363 0.409 0.000 0.862 0.474 0.275 0.323 0.288 0.430 0.485 1.000 0.459 17
11 0.670 0.643 0.622 0.672 0.725 0.589 0.492 0.150 0.400 0.673 0.495 0.430 0.445 0.527 0.303 0.352 0.512 15
12 0.550 0.601 0.447 0.752 0.744 0.720 0.592 0.298 0.332 0.764 0.597 0.507 0.601 0.519 0.424 0.105 0.535 11
13 0.235 0.616 1.000 0.612 0.636 0.601 0.482 0.378 0.338 0.599 0.703 0.606 0.604 0.830 0.303 0.065 0.538 10
14 0.202 0.269 0.107 0.224 0.217 0.262 0.102 0.534 0.106 0.246 0.205 0.102 0.165 0.490 0.182 0.000 0.213 21
15 0.668 0.551 0.631 0.562 0.487 0.607 0.554 0.579 0.540 0.593 0.591 0.556 0.567 0.602 0.364 0.154 0.538 9
16 0.378 0.838 0.407 0.636 0.616 0.690 0.554 0.643 0.302 0.691 0.580 0.484 0.559 0.462 0.303 0.235 0.524 13
17 0.473 0.188 0.268 0.278 0.256 0.339 0.312 0.711 0.605 0.245 0.463 0.450 0.337 0.710 0.061 0.126 0.364 19
18 0.000 0.201 0.276 0.180 0.268 0.268 0.236 0.837 0.582 0.289 0.000 0.000 0.000 0.072 0.000 0.073 0.205 22
19 1.000 0.620 0.560 0.827 0.835 0.893 0.819 0.639 0.506 0.832 0.953 0.890 1.000 0.833 0.758 0.368 0.771 2
20 0.702 0.208 0.170 0.237 0.201 0.238 0.215 0.421 0.611 0.242 0.381 0.372 0.385 0.833 1.000 0.510 0.420 18
21 0.544 0.000 0.000 0.000 0.000 0.000 0.000 0.431 0.697 0.000 0.183 0.198 0.179 0.834 0.606 0.117 0.237 20
22 0.797 0.577 0.393 0.491 0.387 0.667 0.477 1.000 0.139 0.587 0.865 0.694 0.906 1.000 0.424 0.502 0.619 4
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