Crops ›› 2019, Vol. 35 ›› Issue (2): 90-93.doi: 10.16035/j.issn.1001-7283.2019.02.013

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Correlation Analysis of Amylopectin Content, Nutritional Quality and Agronomic Traits in Spring Millet Varieties

Ying Fu,Yinan Shen,Yanchun Liu,Xiaojiao Chai,Xianrui Wang,Xiaolei Bai,Shutian Li   

  1. Research Institute of Agriculture and Animal Husbandry of Chifeng, Chifeng 024031, Inner Mongolia, China
  • Received:2018-10-29 Revised:2018-12-24 Online:2019-04-15 Published:2019-04-12
  • Contact: Shutian Li

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Abstract:

To broaden the high-quality spring millet varieties resources, the field experiment was conducted to study the relationship between the amylopectin content, nutritional quality and agronomic traits of 4 different spring millet varieties, which were expected to provide a theoretical basis for the selective breed of the high-quality spring millet varieties. The results were as follows: Significant difference existed among the amylopectin content in different spring millet varieties; the amylopectin content was significantly positively correlated with ash content, but was significantly negatively correlated with protein and amylose content; meanwhile, it was highly significantly positively correlated with ear hair length, but it was significantly negatively correlated with ear diameter and milled millet percentage. Therefore, a combination of nutritional quality and agronomic traits of the different spring millet varieties can improve the targeting and the efficiency of millet breeding.

Key words: Spring millet, Amylopectin content, Nutritional quality, Agronomic traits, Correlation

Table 1

Nutritional content of tested spring millets %"

品种
Variety		 营养品质含量Nutritional quality content
粗淀粉Starch 粗蛋白Protein 粗脂肪Fat 灰分Ash 粗纤维Fiber 支链淀粉Amylopectin 直链淀粉Amylose
赤谷6号Chigu 6 72.4±0.01c 11.4±0.10a 4.62±0.01c 1.34±0.01d 1.13±0.04a 67.49±0.01d 25.82±0.01a
赤谷8号Chigu 8 72.2±0.10d 11.4±0.01a 4.91±0.02b 1.46±0.01c 1.16±0.10a 69.47±0.02c 23.95±0.02b
黄金谷Huangjingu 73.7±0.02a 10.3±0.02c 4.16±0.02d 1.70±0.01a 1.01±0.01b 78.22±0.02a 12.86±0.03d
峰红谷Fenghonggu 72.5±0.01b 10.8±0.01b 5.32±0.01a 1.64±0.00b 0.94±0.02b 74.76±0.01b 17.83±0.02c

Table 2

Agronomic traits of tested spring millets"

项目
Item		 生育期(d)
Growth
period		 刚毛长度(mm)
Ear hair
length		 有效分蘖数
Effective
tillers		 株高(cm)
Plant
height		 穗长(cm)
Ear
length		 穗粗(cm)
Ear
diameter		 单穗重(g)
Single ear
weight		 出谷率(%)
Milled millet
percentage		 千粒重(g)
1000-grain
weight
赤谷6号Chigu 6 104 01.1 01 144.13 22.27 2.60 27.13 78.60 3.22
赤谷8号Chigu 8 116 01.2 01 164.10 26.27 2.70 32.78 75.30 3.08
黄金谷Huangjingu 115 02.3 02 161.50 20.20 2.00 12.80 65.10 3.47
峰红谷Fenghonggu 103 02.0 01 154.60 23.20 2.20 16.00 67.50 3.20
平均值Average 109.50 01.65 01.25 156.08 22.99 2.38 22.18 71.63 3.24
变异系数CV(%) 006.35 35.86 40.00 5.71 10.98 13.91 42.22 8.89 5.05

Table 3

The correlation of amylopectin content and other nutritional quality index in tested spring millets"

营养品质指标
Nutritional quality index		 相关系数Correlation coefficient
支链淀粉Amylopectin 粗淀粉Starch 粗蛋白Protein 粗脂肪Fat 灰分Ash 粗纤维Fiber 直连淀粉Amylose
支链淀粉Amylopectin -1
粗淀粉Starch -0.83 -1
粗蛋白Protein -0.98* -0.91 -1
粗脂肪Fat -0.27 -0.75 -0.40 -1
灰分Ash -0.98* -0.71 -0.93 -0.10 -1
粗纤维Fiber -0.80 -0.46 -0.77 -0.21 -0.82 1
直连淀粉Amylose -0.99** -0.87 -0.99** -0.33 -0.97* 0.78 1

Table 4

The correlation of amylopectin content and agronomic traits in tested spring millets"

指 标
Index		 相关系数Correlation coefficient
支链淀粉
含量
Amylopectin		 生育期
Growth
period		 刚毛长度
Ear hair
length		 有效分蘖数Effective
tillers		 株高
Plant
height		 穗长
Ear
length		 穗粗
Ear
diameter		 单穗重
Single ear
weight		 出谷率
Milled millet
percentage		 千粒重
1000-grain
weight
支链淀粉含量Amylopectin -1
生育期Growth period -0.24 -1
刚毛长度Ear hair length -0.99** -0.11 -1
有效分蘖数Effective tillers -0.78 -0.53 -0.73 -1
株高Plant height -0.48 -0.85 -0.38 -0.41 -1
穗长Ear length -0.59 -0.16 -0.63 -0.74 -0.29 -1
穗粗Ear diameter -0.96* -0.01 -0.98* -0.76 -0.21 -0.77 -1
单穗重Single ear weight -0.90 -0.16 -0.95 -0.67 -0.06 -0.79 -0.99* -1
出谷率Milled millet percentage -0.99* -0.18 -0.99* -0.68 -0.49 -0.51 -0.94 -0.90 -1
千粒重1000-grain weight -0.75 -0.17 -0.75 -0.93 -0.06 -0.94 -0.84 -0.81 -0.66 1
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