Crops ›› 2017, Vol. 33 ›› Issue (4): 27-32.doi: 10.16035/j.issn.1001-7283.2017.04.005

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Morphological Diversity of Main Oat Germplasm Resources in Northern China

Wang Juan,Li Yinfan,Liang Xiuzhi,Zheng Minna   

  1. High Latitude Crops Institute,Shanxi Academy of Agricultural Sciences,Datong 037008,Shanxi,China
  • Received:2017-01-16 Revised:2017-06-30 Online:2017-08-15 Published:2018-08-26
  • Contact: Yinfan Li

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Abstract:

Genetic diversity of 39 accessions of hulled and naked oat, which were from different sources, were planted in Datong in High Latitude Crops Institute of Shanxi Academy of Agriculture Sciences, and analyzed by genetic diversity indexes and cluster analysis to investigate genetic diversity of agronimic characters. The results showed that: (1) Among the seven quality traits (grain color, kernel shape, spike type, plant type, micro-spike type, leaf plase, and husk/naked) investigated, the diversity index of kernel shape scored the highest (1.304), while that of leaf plase was the lowest (0.635).For the eight quantitative traits ( plant tiller number, spikelet number, plant height, ear length, panicle number, seed number per plant, seed weight per plant,1000-grain weight) , the genetic diversity index of seed weight per-plant was the highest. (2) 39 oat varieties were divided to five cluster groups according to eight quantitative characters. Group Ⅳ was for high yield breeding goal of resource materials, groupⅠwas for large-grain parent, group Ⅱ had high plant breeding parent materials, group Ⅲ was not obvious in good character, and group Ⅴ was for multiple layers, multiple spikelets breeding excellent material.

Key words: Oats, Variety, Germplasm resource, Agronomic character, Morphological diversity

Table 1

Names and sources of 39 oat cultivars"

编号Code 品种Cultivar 来源Source 编号Code 品种Cultivar 来源Source 编号Code 品种Cultivar 来源Source
1 定莜4号 甘肃 14 坝莜9号 河北 27 冀张莜11号 河北
2 定莜6号 甘肃 15 晋燕8号 山西 28 冀张莜13号 河北
3 冀张莜2号 河北 16 晋燕9号 山西 29 冀张莜14号 河北
4 冀张莜3号 河北 17 燕科1号 内蒙古 30 坝燕1号 河北
5 冀张莜4号 河北 18 草莜1号 内蒙古 31 坝燕4号 河北
6 冀张莜5号 河北 19 白燕2号 吉林 32 白燕7号 吉林
7 冀张莜6号 河北 20 白燕3号 吉林 33 白燕引1号 吉林
8 坝莜1号 河北 21 白燕5号 吉林 34 蒙燕1号 内蒙古
9 坝莜3号 河北 22 白燕11号 吉林 35 冀张燕1号 河北
10 坝莜5号 河北 23 白燕8号 吉林 36 冀张燕2号 河北
11 坝莜6号 河北 24 白燕9号 吉林 37 冀白燕1号 河北
12 花早2号 河北 25 宁莜1号 宁夏 38 冀白燕2号 河北
13 坝莜8号 河北 26 花晚6号 河北 39 冀白燕3号 河北

Table 2

Genetic diversity analysis of 7 quality characters of 39 oat cultivars"

性状
Character		 遗传多样性指数
Genetic diversity index		 频率分布Frequency distribution
1 2 3 4
粒色Grain color 0.904 0.512 0.410 0.077 —
粒形Kernel shape 1.304 0.153 0.384 0.307 0.155
株型Plant type 0.665 0.384 0.615 — —
叶相Leaf plase 0.635 0.666 0.333 — —
穗型Spike type 0.926 0.692 0.153 0.102 0.052
小穗型Micro-spike type 1.027 0.256 0.230 0.512 —
皮/裸性Husk/Naked 0.568 0.256 0.743 — —

Table 3

Genetic diversity analysis of 8 quantitative characters of 39 oat cultivars"

性状
Character		 平均值
Mean		 标准差
SD		 最大值
Maximum		 最小值
Minimum		 极差
Range		 变异系数
CV(%)		 遗传多样性指数
Genetic diversity index
单株分蘖数Plant tiller number 1.25 0.58 2.30 0.30 2.00 46.40 3.02
小穗数Spikelet number 33.32 8.69 49.30 16.80 32.50 26.08 3.51
株高Plant height (cm) 101.39 13.32 128.00 65.00 63.00 13.13 3.33
穗长Ear length (cm) 18.21 3.56 24.00 12.00 12.00 19.54 2.51
轮层数Panicle number 4.18 0.59 5.50 3.20 2.30 14.11 3.17
单株粒数Seed number per plant 84.30 29.94 172.90 34.50 138.40 35.51 3.35
单株粒重Seed weight per plant (g) 2.18 0.94 6.48 0.92 5.56 43.11 3.55
千粒重1000-grain weight (g) 24.65 4.69 35.80 17.40 18.40 19.02 3.46

Fig.1

Dendrogram of generated by cluster analysis for 39 oat cultivars"

Table 4

Morphological characters of 39 oat cultivars"

性状Character 类群Group
Ⅰ Ⅱ Ⅲ Ⅳ Ⅴ
单株分蘖数Plant tiller number 平均值Mean 1.18 1.13 1.40 1.00 0.60
变异系数CV(%) 48.23 54.62 33.78 70.00 33.33
小穗数Spikelet number 平均值Mean 37.10 33.25 31.94 34.40 40.55
变异系数CV(%) 27.38 22.01 30.46 0.87 5.05
轮层数Panicle number 平均值Mean 4.15 4.18 4.15 4.30 4.35
变异系数CV(%) 13.49 11.96 16.38 2.32 8.04
株高Plant height(cm) 平均值Mean 96.20 108.53 96.93 102.50 90.00
变异系数CV(%) 2.96 9.12 15.96 0.16 2.22
穗长Ear length(cm) 平均值Mean 18.20 18.20 18.26 14.00 23.50
变异系数CV(%) 12.69 16.92 20.48 14.28 10.63
单株粒数Grain number per plant 平均值Mean 72.92 91.40 83.50 77.20 79.55
变异系数CV(%) 33.88 32.35 38.68 13.21 4.33
单株粒重Grain weight per plant(g) 平均值Mean 1.92 2.35 2.14 2.11 2.11
变异系数CV(%) 30.20 48.51 38.78 27.96 12.32
千粒重1000-grain weight(g) 平均值Mean 26.16 23.53 24.65 27.70 27.10
变异系数CV(%) 13.53 16.30 20.44 24.18 2.58
粒色Grain color 黄色或褐色 黄色或白色或褐色 黄色或白色 黄色或褐色 黄色
粒形Kernel shape
 长筒或纺锤或卵形 长筒或纺锤或卵形或椭圆
 长筒或纺锤
或卵形或椭圆		 长筒或
纺锤		 长筒或
纺锤
株型Plant type 披散或紧凑 披散或紧凑 披散或紧凑 披散或紧凑 紧凑
叶相Leaf phase 平披或上举 平披或上举 平披或上举 平披 平披
穗型Spike type 周散或侧散 周散或侧散或周紧或侧紧 周散或侧散或周紧或侧紧 周散或侧紧 周散
小穗型Micro-spike type
 纺锤或鞭炮或串铃 鞭炮或串铃
 鞭炮或纺锤或串铃
 纺锤或串铃
 纺锤
皮/裸性Husk/Naked 皮 皮或裸 皮或裸 皮 皮
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