Crops ›› 2019, Vol. 35 ›› Issue (4): 42-48.doi: 10.16035/j.issn.1001-7283.2019.04.007

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Evaluation of Basic Agronomic Traits of Secale cereale subsp. segetale

Mu Yunsen,Wen Xiaolei,Yang Yanping,Liu Xinxin,Guo Juan,Cui Jing,Song Nan,Zuo Xueli,Che Yonghe   

  1. College of Agronomy and Biotechnology, Hebei Normal University of Science and Technonlogy, Qinhuangdao 066600, Hebei, China
  • Received:2019-01-19 Revised:2019-06-21 Online:2019-08-15 Published:2019-08-06

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Abstract:

In order to further understand the agronomic traits in Secale cereale subsp. segetale populations, and provide a basis for conservction and utilization of germplasm resources, the plant height, spike length, spike width, effective spikes, spikelets per spike, kernels per spikelet and 1000-kernel weight of Secale cereale subsp. segetale populations were investigated. The results showed that the genetic variation of 58 Secale cereale subsp. segetale populations number in all agronomic traits ranged from 5.1% to 42.8%. The plant height of 89R66 was the highest, effective spikes of 89R23 was the highest, spikelets per spike of 89R43 was the highest, kernels per spikelet of 90R6 was the highest, and 1000-kernel weight of 89R34 was the largest. Correlation analysis showed that the spike length and spike width of Secale cereale subsp. segetale populations had direct or indirect effects on 1000-kernel weight. At a genetic distance of 11.0, 58 germplasms was divided to four groups. The group Ⅰ had the highest number per spikelet and large 1000-kernel weight, which could be used as an excellent germplasm for rye and wheat genetic breeding; The group Ⅱ and group Ⅲ with tall plant and more tillers could be used for the breeding of herbage; The group Ⅳ had no significant features. The agronomic traits among the populations are diverse, indicating that the genetic resources among the populations are abundant, and it is convenient to use these rye germplasm resources for different needs.

Key words: Secale cereale subsp. segetale, Agronomic trait, Gene resource

Table 1

The information of Secale cereale subsp. segetale"

名称
Name		 引种地
Introduction
area		 引种年份
Introduction
year		 名称
Name		 引种地
Introduction
area		 引种年份
Introduction
year
89R1 伊宁 1989 89R43 伊宁 1989
89R2 伊宁 1989 89R45 玛纳斯 1989
89R3 伊宁 1989 89R46 玛纳斯 1989
89R6 伊宁 1989 89R47 玛纳斯 1989
89R10 伊宁 1989 89R48 玛纳斯 1989
89R11 伊宁 1989 89R49 玛纳斯 1989
89R12 伊宁 1989 89R51 玛纳斯 1989
89R14 伊宁 1989 89R52 木垒 1989
89R15 伊宁 1989 89R53 玛纳斯 1989
89R16 伊宁 1989 89R54 玛纳斯 1989
89R19 伊宁 1989 89R57 玛纳斯 1989
89R20 新源 1989 89R58 玛纳斯 1989
89R21 新源 1989 89R59 玛纳斯 1989
89R22 新源 1989 89R64 玛纳斯 1989
89R23 新源 1989 89R65 新疆 1989
89R24 新源 1989 89R66 新疆 1989
89R26 新源 1989 90R2 安宁渠 1990
89R28 新源 1989 90R6 五家渠 1990
89R30 新源 1989 90R13 安宁渠 1990
89R32 新源 1989 90R18 木垒 1990
89R33 伊宁 1989 90R20 奇台 1990
89R34 伊宁 1989 90R23 安宁渠 1990
89R35 伊宁 1989 90R27 霍城 1990
89R36 伊宁 1989 90R28 乌鲁木齐 1989
89R37 伊宁 1989 90R29 巩留 1990
89R39 伊宁 1989 90R32 安宁渠 1990
89R40 伊宁 1989 90R33 伊宁 1990
89R41 伊宁 1989 90R35 新源 1990
89R42 伊宁 1989 90R36 伊宁 1990

Table 2

Basic statistical analysis of agronomic traits of Secale cereale subsp. segetale"

性状
Trait		 最大值
Maximum		 最小值
Minimum		 极差
Range		 平均值
Mean		 标准差
Standard deviation		 变异系数(%)
Coefficient of variation
株高Plant height (cm) 151.6 119.4 32.2 138.8 7.0 5.1
穗长Spike length (cm) 16.2 10.5 5.7 13.2 1.3 10.0
穗宽Spike width (cm) 1.0 0.4 0.6 0.6 0.2 37.8
有效穗数Effective spikes 59.0 7.4 51.6 30.2 12.9 42.8
小穗数Spikelets per spike 46.2 32.3 13.9 40.3 3.1 7.6
穗粒数Kernels per spikelet 79.6 16.4 63.2 43.7 17.4 39.8
千粒重1000-kernel weight (g) 34.8 12.4 22.4 21.9 3.6 16.3

Table 3

Corresponding materials for the highest agronomic traits of Secale cereale subsp. segetale"

性状Trait 最大值Maximum 材料Material
株高Plant height (cm) 151.6 89R66
穗长Spike length (cm) 16.2 89R59
穗宽Spike width (cm) 1.0 89R15、89R19、
89R40、89R64、
90R18、90R35
小穗数Spikelets per spike 46.2 89R43
有效穗数Effective spikes 59.0 89R23
穗粒数Kernels per spikelet 79.6 90R6
千粒重1000-kernel weight (g) 34.8 89R34

Fig.1

Distribution of number of 58 Secale cereale subsp. segetale populations"

Table 4

Correlation analysis of agronomic traits of Secale cereale subsp. segetale"

性状
Trait		 株高
Plant height		 穗长
Spike length		 穗宽
Spike width		 有效穗数
Effective spikes		 小穗数
Spikelets per spike		 穗粒数
Kernels per spikelet
穗长Spike length 0.069
穗宽Spike width 0.050 0.520**
有效穗数Effective spikes 0.187 -0.247** -0.588**
小穗数Spikelets per spike 0.142 0.587** 0.234** -0.192
穗粒数Kernels per spikelet 0.135 0.488** 0.773** -0.446** 0.143
千粒重1000-kernel weight 0.165 0.316** 0.424** -0.250 -0.236 0.465**

Table 5

Regression analysis of 1000-kernel weight of Secale cereale subsp. segetale"

模型Model 非标准化系数Non-standardized coefficient 标准化系数
Standardized coefficient		 t 显著性
Significance
B 标准误Standard error
1 常数(Constant) 14.485 4.445 - 3.258 0.002
X1 0.249 0.378 0.093 0.659 0.013
X2 1.956 2.967 0.128 0.659 0.012
X3 0.065 0.039 0.321 1.686 0.047

Table 6

Path analysis of main agronomic traits to 1000-kernel weight in Secale cereale subsp. segetale"

性状
Trait		 相关系数
Correlation coefficient		 直接通径系数
Direct path coefficient		 间接通径系数
Indirect path coefficient
→X1 →X2 →X3
X1 0.316 0.093 0.067 0.043
X2 0.424 0.128 0.005 0.248
X3 0.465 0.321 0.045 0.099

Fig.2

Cluster tree of Secale cereale subsp. segetale"

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