Crops ›› 2017, Vol. 33 ›› Issue (1): 25-31.doi: 10.16035/j.issn.1001-7283.2017.01.005

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Clustering and Correlation Analysis of Earlier-Mauture Cotton Innovation Germplasm based on Biological Characters

Xu Min1,Hu Yushu1,Li Jinglin2,Jin Lulu1,Wang Zisheng1   

  1. 1Liaoning Cash Crop Institute,Liaoyang 111000,Liaoning, China
    2Agronomy College,Shenyang Agriculture University,Shenyang 110161,Liaoning,China
  • Received:2016-10-09 Revised:2016-10-27 Online:2017-02-15 Published:2018-08-26

Abstract:

For further determining the situation of cotton germplasm in Liaohe basin, 144 innovation materials were selected to conduct a clustering analysis and evaluation. The clustering analysis showed that the 144 materials were divided into 9 groups in Euclidean distance 8.01 based on 3 classes 9 biological characteristics. Each group was basically in line with the characteristic of the material itself and the genetic background of the evolution trend, which could be used as earlier maturer, disease resistance, large boll, high yield, high lint index, excellent quality material, respectively. Meanwhile the correlation between yield, quality and disease resistance characters were not significant, but the correlation between fiber length and strength was positively significant (r=0.6366) based on 3 classes 9 characters of innovation germplasm.

Key words: Cotton, Germplasm, Cluster analysis, Correlation analysis

Table 1

Code and source of materials tested"

编号Code 来源Source
1-64 辽宁省经济作物研究所
65-90 新疆西北内陆棉区
91-124 黄河流域棉区
125-128 长江流域夏播棉区
129-144 不详

Fig.1

Cluster result of cotton germplasma"

Table 2

Cluster result and characteristic of germplasms"

类群
Clusters
资源编号
Germplasm No.
主要特征
Main characteristics
Ⅰ(17份) 1、2、3、4、5、6、7、11、16、19、28、30、35、43、44、92、144 生育期适中,枯、黄萎病抗性一般,单铃重较低,衣分、产量较高,纤维品质居中
Ⅱ(11份) 9、12、46、47、49、85、99、119、121、133、135 生育期适中,高抗枯、黄萎病,单铃重大,衣分最高,产量较高,纤维品质较差
Ⅲ(24份) 20、22、40、48、50、67、72、79、87、88、89、102、104、108、112、114、117、118、125、130、134、138、139、141 生育期较短,高抗枯萎病,黄萎病抗性一般,单铃重及衣分较低,产量较低,纤维品质一般
Ⅳ(13份) 77、90、91、93、95、97、111、113、115、126、129、136、137 生育期短,抗枯耐黄,单铃重低,衣分适中,产量低,纤维品质一般
Ⅴ(1份) 94 生育期适中,高抗枯、黄萎病,单铃重较低,衣分、产量较高,纤维品质较差
Ⅵ(21份) 8、10、13、24、29、31、32、36、37、39、45、53、58、59、60、61、62、64、70、101、127 生育期适中,抗枯耐黄,单铃重、衣分、产量居中,纤维品质较优
Ⅶ(20份) 14、18、27、33、34、38、51、54、57、63、65、68、69、84、98、109、124、132、143 生育期适中,高抗枯、黄萎病,单铃重、衣分低,产量适中,纤维品质较优
Ⅷ(18份) 15、17、23、25、26、41、42、56、71、73、74、75、76、100、110、116、122、128 生育期较长,高抗枯、黄萎病,单铃重大,衣分较低,产量适中,纤维品质优
Ⅸ(19份) 21、52、66、78、80、81、82、83、86、96、103、105、106、107、120、123、131、140、142 生育期较短,高抗枯、黄萎病,单铃重大,衣分、产量较低,纤维品质较优

Table 3

Mean characters values of cotton germplasm group"

性状Characters 种质资源类群Germplasm group
生育期(d)
Growth period
118.65±2.26 120.09±2.17 114.50±8.53 105.00±4.56 115.00 120.24±2.82 120.81±3.67 128.17±6.18 116.32±6.35
枯萎病病情指数
Fusarium wilt index
10.73±2.76 5.90±2.00 3.39±1.22 6.30±2.08 1.25 5.22±2.51 4.36±1.34 5.19±2.16 3.50±1.47
黄萎病病情指数
Verticillium wilt index
17.84±7.22 9.24±3.14 16.83±7.46 31.08±7.09 6.25 24.11±5.16 18.04±5.85 5.76±4.58 9.52±3.26
单铃重(g)
Single boll weight
6.47±0.68 7.60±0.40 6.18±0.63 6.16±0.78 6.43 6.88±0.85 6.21±0.71 7.27±0.68 7.72±0.85
衣分(%)
Ginning outturn
42.70±1.92 44.33±1.64 40.51±2.24 41.45±2.53 43.86 42.77±2.34 40.54±2.17 40.20±1.81 40.70±1.58
皮棉产量
Lint yield (kg/hm2)
1 276.34±238.37 1 105.18±491.83 995.79±240.23 920.29±184.99 1 339.58 1 042.41±268.51 1 011.56±479.05 1 064.06±562.88 922.43±237.43
纤维上半部平均长度
Upper half mean length of fibre (mm)
27.95±1.41 26.86±1.64 27.27±1.35 27.41±1.46 25.74 28.84±1.32 29.47±1.09 30.97±0.90 29.12±0.77
断裂比强度
Breaking strength
(cN/tex)
26.21±1.44 24.66±1.67 26.16±1.33 27.01±1.87 24.10 26.14±1.65 29.22±1.64 28.40±1.50 28.24±1.71
马克隆值
Incompatible micronaire
5.17±0.33 5.70±0.24 5.34±0.38 5.23±0.37 5.79 4.70±0.29 4.48±0.50 4.87±0.36 5.36±0.41

Table 4

Correlation analysis of cotton germplasm characters"

性状Characters x1 x2 x3 x4 x5 x6 x7 x8 x9
生育期x1 Growth period 1.0000
枯萎病病情指数x2 Fusarium wilt index 0.0114 1.0000
黄萎病病情指数x3 Verticillium wilt index -0.3344 0.1314 1.0000
单铃重x4 Single boll weight 0.2157 -0.0963 0.3991 1.0000
衣分x5 Ginning outturn -0.0411 0.2608 0.1184 -0.1540 1.0000
皮棉产量x6 Lint yield -0.1082 0.0275 -0.0625 -0.0336 0.2603 1.0000
纤维上半部平均长度x7 Upper half mean length of fibre 0.3613 0.0848 -0.1982 0.2698 -0.3358 -0.1160 1.0000
断裂比强度x8 Breaking strength 0.0239 -0.1611 -0.0585 0.0807 -0.3392 -0.1179 0.6366 1.0000
马克隆值x9 Incompatible micronaire -0.2196 -0.0431 -0.1079 0.1558 0.1666 -0.1502 -0.3466 -0.2264 1
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