




































 

 

 

123 
† Corresponding author 
© 2015 Conscientia Beam. All Rights Reserved. 

GENETIC DIVERGENCE AND CHARACTER ASSOCIATION OF KABULI-

TYPE CHICKPEA (CICER ARIETIUM) GENOTYPE UNDER RAINFED 

CONDITIONS IN ETHIOPIA 

 

Getachew Tilahun1† --- Firew Mekbib2 --- Asnake Fikre3 

1Amhara Regional Agricultural Research Institute, Gonder Agricultural Research Center, Ethiopia 

2Plant Science Department, Haramaya University, Dire Dawa, Ethiopia 

3Crop research Director, EIAR, Addis Ababa, Ethiopia 

 

ABSTRACT 

Chickpea is the major pulses grown in Ethiopia, mainly by subsistence farmers usually under rain-fed 

conditions Variability, heritability and correlation are the backbone of every selection method. The objective 

of the present study was to assess genotypic variability, heritability and correlation of 17kabuli-type 

genotypes for yield and yield related traits under rainfed condition. The experiments were conducted at the 

field area of Akaki, Chefe donssa, Deber zeit, Dembia and Haramay under RCB Design with four 

replication including 17 diverse genotypes of chickpea. There were significant genetic differences between 

genotypes for all the characters studied which suggested enormous scope of genotypes selection with desirable 

characters. High heritability for seed per pod, 100 seed weight and pod per plant high genetic advance 

revealed that additive gene effects were important in determining these traits. High heritability with low 

genetic advance for days to flowering and seed per pod indicated influence of dominant and epistatic genes. 

Estimation of correlation coefficients showed that pods per plant, plant biomass, plant height, and harvest 

index and 100-grain weight were positively correlated with grain yield. The traits, which revealed high 

amount of heritability and genetic advance, were controlled by additive genes, which advocated the chances 

of their improvement through selection. In the present investigation high to low heritability with moderate 

estimates of genetic advance recorded for pod per plant, seed per pod, plant height days to flowering, days to 

maturity,100 seed weight and grain yield where careful selection may lead towards improvement for these 

traits. Hence, provides better opportunities for selecting plant material for these traits in chickpea. 

Keywords: Correlation, Environmental variance, Genetic advance, Genetic variability, Heritability, 

Phenotype variance, Yield components. 

 

 

 

Current Research in Agricultural Sciences 
2015 Vol. 2, No. 4, pp. 123-131 
ISSN(e): 2312-6418 
ISSN(p): 2313-3716 
DOI: 10.18488/journal.68/2015.2.4/68.4.123.131 
© 2015 Conscientia Beam. All Rights Reserved. 

 
 

 
 
 
 

http://crossmark.crossref.org/dialog/?doi=10.18488/journal.68/2015.2.4/68.4.123.131
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Current Research in Agricultural Sciences, 2015, 2(4): 123-131 

 

 

124 
© 2015 Conscientia Beam. All Rights Reserved. 

1. INTRODUCTION 

Chickpea (Cicer arietinum L.) is self-pollinated crop with diploid chromosome number (2n= 

2x=16), and genus Cicer, tribe Cicereae, family Fabaceae, and subfamily Papilionaceae. Chickpea 

is the third leading legume grain in the world and third of the area and production of pulses 

following faba bean (Viciafaba L.) and haricot bean (Phaseolus vulgaris L.) in Ethiopia. Its range of 

cultivation extends from the Mediterranean basin to the Indian sub-continent and south ward of 

Ethiopia and eastern Africa highlands [1]. 92% of the area and 89% of production of the grain are 

concentrated in the semi-arid tropical countries [1].  

The crop provides an important source of food and nutritional security for the rural poor, 

those who cannot produce or cannot afford costly livestock products as source of essential 

proteins. The consumption of chickpea is also increasing among the urban population mainly 

because of the growing recognition of its health benefits and affordable source of proteins. 

Chickpea is the cheapest and readily available source of protein (19.5%), fats (11.4%), 

carbohydrate (57-60%), ash (4.8%) and moisture (4.9-15.59%), more over its resistance to dry 

condition is also well recognized [2]. Chickpea is one of the most important crops in Ethiopia 

both in terms of its share of the total cropped pulse area and its role for human consumption. The 

total cultivated area of chickpeas in 2012 amounts to 231298.54 ha and its production 

400207.719tones, but the national average yield of 1.73 ton/ha [3] remains less than its genetic 

potential indicating limited adoption of new high-yielding and stress tolerant varieties in 

Ethiopia. In the export market, chickpea contributes a significant portion of the total value of 

pulse exports. For example, chickpea constituted about 48% of the pulse export volumes in 2002. 

During this period of time, the exported volume accounts about 27% of the total quantity of 

chickpea production while the balance remains for domestic market [4]. However, in recent 

years, Ethiopia has exported around 0.03-0.05 million tones of chickpea annually, or around 10-

15% of total production [5], to countries in South Asia, Middle East and North Africa (MENA), 

and Sub-Saharan Africa(SSA). 

Research to improve the productivity of chickpea has been conducted for more than 40 years 

mainly at Debre Zeit Agricultural Research Center (DZARC) and other regional centers. Several 

new Desi- and Kabuli-type chickpea varieties have been developed through collaborative research 

programs involving ICRISAT and ICARDA [4]. Most of the improved chickpea varieties with 

their appropriate agronomic practices have been demonstrated to farmers. 

The Kabuli type chickpeas are characterized by white-colored seed with ram’s head shape, 

thin seed coat, smooth seed surface, white flowers, and lack of anthocyanin pigmentation on the 

stem. The plant is medium to tall in height, with large leaflets and white flowers. As compared to 

Desi types, the Kabuli types have higher levels of sucrose and lower levels of fiber. The Kabuli 

types generally have large sized seeds and receive higher market price than Desi types [6]. 

The concept of heritability explains whether the differences observed among individuals 

arose as a result of differences in genetic makeup or due to environmental forces. Genetic advance 

gives an idea of possible improvement of new population through selection, when compared to the 

original population. The genetic gain depends upon the amount of genetic variability and 



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125 
© 2015 Conscientia Beam. All Rights Reserved. 

magnitude of the masking effect of the environment. Information of the genetic variability, 

heritability and association of various characters provides a basis to the plant breeders to breed 

the chickpea genotypes possessing higher yield potential. Plant breeders are continuously 

engaged to improve the genetic yield potential of this crop to meet the demands of ever increasing 

population. The information on nature and magnitude of genetic variation in quantitative 

characters and their inter-relationship in population comprising diverse genotypes is an 

important prerequisite for systematic breeding program. Therefore several research workers [7-

12] have emphasized the utility of the estimates of genetic components in the response prediction 

of quantitative characters to selection as well as the correlated response of various traits to grain 

yield.  Hence, the present studies were undertaken in Ethiopia which falls under tropical climate 

to estimate the genetic component of variance for grain yield and its related traits to compute 

broad sense heritability, genetic advance in Kabuli-type chickpea. 

 

2. MATERIALS AND METHODS 

The present study was carried out to seek information on heritable variation and association 

of various characters with grain yield in breeding material for effective selection of genotypes for 

yield increments of chickpea during the 2012/13 main cropping season at five locations 

representing various chickpea growing agro-ecologies of Ethiopia. The testing sites were Akaki, 

Chefe Donsa, Debre Zeit, Dembia and Haramaya. Thirteen pipelines and four released Kabuli-

type chickpea genotypes were included in the study. The plant materials were obtained from 

Debre Zeit Agricultural Research Center. Planting of the genotypes were done in early mid-

August up to first week of September using Randomized Complete Block Design with four 

replications at each site under rain fed conditions. Each genotype was planted in a six row plot 

with four meter length. The plant-to-plant and row-to-row distances were maintained at 10 and 

30 cm, respectively. Recommended cultural practices were adopted to maintain a healthy crop 

growth under rainfed conditions. Data were recorded on days to 50% flowering in a plot, 90% 

physiological maturity, plant height, number of pods per plant, number of seeds per plant, 100-

seed weight, above ground dry biomass yield, grain yield, and harvest index. Harvest index was 

calculated as ratio between grain yield per plot and biological yield per plot. Data were computed 

by using SAS 9.1.3 for analysis of variance. 

 

Table-1. Some characteristic features of the tested sites 

Trial site Soil type  Altitud
e 
(masl) 

Rainfall 
average 
(mm) 

Temperatur
e (oC) 

Geographical position 

Latitude(N) Longitude(
E) Min  Max 

Akaki Vertisol 2120 1055 10.36 22.3 08052’ 38048’ 
Chefe Donsa Vertisol 2450 950 10.5 23.2 080 52’ 39008’ 
Dembia Vertisol 2021 1000 14.0 29.2 1201’ 37019’ 
Debre zeit Vertisol 1950 851 10.8 26.9 080 44’ 38058’ 
Haramaya Vertisol 1980 780 15.8 24.3 9026’ 42030’ 

Source: Debre Zeit Agricultural Research Center (2012) 

 



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Table-2. List of Kabuli-type chickpea genotypes included in the experiment 

Entry no Entry name Entry no Entry name Entry no Entry name 

1 DZ-2012-CK-0001 8 DZ-2012-CK-0008 15 EJERE (SC) 

2 DZ-2012-CK-0002 9 DZ-2012-CK-0009 16 HABRU (SC) 
3 DZ-2012-CK-0003 10 DZ-2012-CK-0010 17 DZ-10-4 
4 DZ-2012-CK-0004 11 DZ-2012-CK-0011   
5 DZ-2012-CK-0005 12 DZ-2012-CK-0012   
6 DZ-2012-CK-0006 13 DZ-2012-CK-0013   

7 DZ-2012-CK-0007 14 ARERTI (SC)   

 

3. RESULT AND DISCUSSION 

3.1. Analysis of Variance and Genetic Diversity 

Variability plays an important role in crop breeding. An insight in to the magnitude of 

variability present in crop species is of greatest importance as it provides the basis of selection. 

Results of analysis of variance revealed that genotypes differed significantly for all the characters 

recorded (Table 3).  

The results, pooled analysis of variance for gain yield, indicated highly significant differences 

for genotype environment interaction (Table 3).Yield and its components are multigenic traits 

and are strongly influenced by environment in chickpea. Significant variation was observed for 

grain yield in chickpea by Khan, et al. [13]; Khan, et al. [14]. The maximum grain yield was 

recorded in the genotype DZ-2012-CK-0013, while minimum was noted in DZ-10-4. Days to 

flowering result revealed significant differences not only for genotypes but also high magnitude of 

genotype environment interaction, reflecting genetic variability in experimental material as well 

as difference in the environmental conditions (Table 3). Two varieties Habru and Ejeri with 49 

days to 50% flowering were early in flowering where as DZ-2012-CK-0008 was late in flowering. 

Flowering time of a variety plays an important role in its selection and has a direct relationship 

with earliness or lateness of a genotype, because early flowering genotype usually mature early. 

Early flowering traits has significant beneficial effects by reducing crop duration in chickpea and 

escape most of the weather hazards like hill storm, floods, rains and diseases etc. Besides, it 

vacates the land early for sowing of succeeding crop. Days to flowering is mostly used as basis for 

determining the maturity. Maturity time of different genotype varied from 124 to 134 days. The 

genotype, Dz-10-4 matured in 124 days where as another genotype DZ-2012-CK-0006 matured 

in 134 days. Plant height results revealed significant differences not only for genotypes but also 

high magnitude of genotype environment interaction, reflecting genetic variability in 

experimental material as well as difference in the environmental conditions. Plant height ranged 

from 35cm to 49cm. The minimum plant height was recorded in Arerti and the maximum plant 

height was recorded in DZ-2012-CK-0009. It could be concluded from results that plant height is 

sensitive to environmental fluctuations and indicated that relative performance of genotypes was 

markedly inconsistent over the locations. These results are consistent with the findings of Malik, 

et al. [8] in chickpea. Number of pods per plant is an important selection criterion for the 

development of high yielding genotypes and is strongly influenced by environment in chickpea 

[8]. Marked variation was observed in the performance of genotypes over five locations. Pod per 



Current Research in Agricultural Sciences, 2015, 2(4): 123-131 

 

 

127 
© 2015 Conscientia Beam. All Rights Reserved. 

plant ranged from 28-52. The maximum pod peer plant was obtained from the Dz-10-4 where as 

the minimum pod per plan was recorded from DZ-2012-CK-0006. Biological yield ranged from 

1078g to 1810g. Minimum biological yield was obtained from Dz-10-4 whereas genotype DZ-

2012-CK-0013 produced maximum biological yield 1810g, as well as maximum 100-seed weight 

37g which is recorded from DZ-2012-CK-0006. 100 seed weight was also a highly variable 

character and the largest 100 seed weight was recorded from DZ-2012-CK-0006 which is 37g per 

100 seed and the smallest from Dz-10-4 which is 17g per 100 seed. 100 seed weight is an 

important yield component which is genetically controlled Singh and Bains [15]; Khan, et al. 

[14]; Khan, et al. [13]. Harvest index of genotype were ranged from 31 to 43.The highest 

harvest index were recorded from Habru and the lowest was recorded DZ-2012-CK-0006. 

 
Table-3.Mean performance of yield (kg/ha) and yield related traits of 17 Kabuli-type chickpea genotypes grown at 
five environments. 
Genotypes  DF DM PPP SPP PHT HSW BM HI Mean 

YLD 

DZ-2012-CK-0001 58 129 34 1.1 39 31 1775 37 2304 
DZ-2012-CK-0002 57 132 34 1 39 33 1585 34 1968 

DZ-2012-CK-0003 58 131 35 1 41 35 1640 32 2128 
DZ-2012-CK-0004 57 129 33 1 38 30 1487 37 2042 
DZ-2012-CK-0005 59 132 30 1 44 34 1540 37 2210 
DZ-2012-CK-0006 58 134 28 1 40 37 1655 31 1774 
DZ-2012-CK-0007 57 131 32 1 46 30 1585 33 1774 
DZ-2012-CK-0008 60 133 33 1 43 36 1775 33 2135 

DZ-2012-CK-0009 59 130 33 1 49 31 1572 36 2042 
DZ-2012-CK-0010 51 131 41 1 43 34 1420 39 2090 
DZ-2012-CK-0011 57 131 32 1 36 30 1335 34 1718 
DZ-2012-CK-0012 52 130 34 1 46 31 1635 35 2023 
DZ-2012-CK-0013 58 131 36 1 41 33 1810 38 2635 

Arerti (SC) 57 127 43 1 35 24 1620 41 2412 
Ejere(SC)  49 124 37 1 38 33 1438 41 2025 
Habru (SC) 49 124 39 1 40 30 1395 43 2393 
Dz-10-4 57 126 52 1.7 39 17 1078 39 1510 
Means  
CV (%) 
LSD 

56 130 36 1.1 41 31 1550 37 2081 
5 2 15 18 9 5 15 14 18 

2 2 3 0.1 2 1 141 3.1 56 
 

Where: DF= days to flower, DM=days to mature, PPP= pod per plant, SPP= seed per pod, PHT=plant height, BM= biomass yield, 
HI= harvest index, HSW= hundred seed weight. SC= Standard check and YLD=yield 

 

4. HERITABILITY AND GENETIC ADVANCE 

The present investigation the heritability estimates were found to be high for 100 seed 

weight (98.7 %), seed per pod (93.5%), pod per plant (84.01 %), plant height (83.8.%), days to 90% 

physiological maturity(82.5%) and 50% days to flowering (89.8%). High heritability of 100- 

seed weight along with high genetic advance indicated that maximum improvement by selection 

could be possible considering this trait. Whereas low estimates of heritability was recorded for 

grain yield (47.7%).These results indicated the influence of dominant and epistatic genes for these 

characters. High value of heritability in broad sense indicates that the character is least influenced 

by environmental effects Muhammad, et al. [16]. Heritability alone provides no indication of the 



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128 
© 2015 Conscientia Beam. All Rights Reserved. 

amount of genetic improvement that would result from selection of individual genotypes. Hence 

knowledge about genetic advance coupled with heritability is most useful. Character exhibiting 

high heritability may not necessarily give high genetic advance. Johanson, et al. [17] showed 

high heritability should be accompanied by high genetic advance to arrive at more reliable 

conclusion. Genetic variance characters were extremely higher than the environmental variance 

indicating greater influence of genotype than environment on the trait (Table 4).The genetic 

advance (5% selection intensity) was highest for yield, number of pod per plant and 100 seed 

weight (Table 4). This implies that progress on improving seed yield could be achieved through 

simple selection of the number of pod per plant and 100 seed weight.  These results get support 

from the findings of Burli, et al. [18] and Adhaikari and Pandey [19]. 

Phenotypic variance for number of days taken to 50% flowering, number of days taken to 

90% maturity, plant height, and number of pod per plant, 100seed weight, number of seed per pod 

and seed yield was higher than genotypic variance indicating the influence of environmental 

factors. 

 

Table-4. Genetic parameters for various quantitative characters in 17 Kabuli-type chickpea genotypes. 

Character Mean  Range  SE Vg  Vp  Ve  H2(%) GA% 

DF 56.1 49-60 0.5 59 65.7 6.7 89.8 0.12 
DM 129.9 124-134 1.0 36.8 44.6 29.6 82.5 3.47 
PHT 41.1 35-49 0.4 63.9 76.2 12.3 83.8 5.92 

PPP 35.9 28-52 1.0 155.85 185.5 29.6 84.01 14.41 
SPP 1.01 1-1.7 0.01 0.145 0.155 0.01 93.5 0.01 
HSW 30.8 17-37 0.3 179.3 181.6 2.3 98.7 14.11 
YLD 2080.8 1510-2635 9.9 65.1 136.4 71.3 47.7 858.4 

 

Where: SE= Standard Error, Vg. = Genotypic Variance, Vp. = Phenotypic Variance, Ve. = environmental variance, H2 (%) = Heritability in 
Broad Sense, G. A. = Genetic Advance (5% selection intensity), value of k=1.554 

 

Bartlett’s test showed that homogenous error variance for the grain yield and allowed to 

proceed further for pooled analysis across environments. The combined analysis of variance 

(Table 5) for grain yield exhibited differences P≤0.01 among environments, genotypes and GEI, 

indicating differences in environments and the presence of genetic variability among genotypes.  

 
Table-5.Mean sum of squares of yield and other traits from combined ANOVA of 17 Kabuli-type chickpea genotypes 
grown across five environments in Ethiopia 

 
DF= days to flowering, DM=days to maturity, PPP= pod per plant, SPP= seed per pod, PHT= plant height, HSW= hundred seed weight, 
HI= harvest index and YLD= grain yield. 

 

4.1. Correlation Analysis of Quantitative Characteristics of Kabuli-Type Chickpea 

Genotypes 

Plant biomass, plant height and above ground dry biomass, were positively correlated with 

days to flowering and negatively correlated with pod per plant and harvest index. This result is in 

accordance with the findings of Yousefi, et al. [20] and Ali, et al. [12] in chickpea. Pod per plant 



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129 
© 2015 Conscientia Beam. All Rights Reserved. 

and plant height were positively correlated with days to maturity and negatively correlated with 

hundred seed weight, grain yield and above ground dry biomass. Hundred seed weight, grain 

yield and harvest index were negatively correlated with pod per plant. Seed per pod was 

positively correlated with number of pod per plant. The positive association of pods per plant 

with other yield components had been reported by Malhotra, et al. [21] and Rao, et al. [22] in 

chickpea. Seed per pod were positively correlated with harvest index. Hundred seed weight and 

grain yield were negatively correlated with seed per pod. Grain yield, above ground dry biomass 

and hundred seed weight were positively correlated with plant height and negatively correlated 

with harvest index. Hundred seed weight were positively correlated with grain yield and above 

ground dry biomass. Above ground dry biomass was positive correlation with grain yield and 

negatively correlated with harvest index. Grain yield was positive correlation with harvest index 

(Table 6). Similar finding have been reported in chickpea researcher [23]. 

The analysis of the relationships among these characters and their associations with grain 

yield is essential to establish selection criteria. High and positively significant correlation were 

observed between plant height and above ground biomass(r= 0.54**), between days to flowering 

and above ground dry biomass(r= 0.51**) while high and negatively significant correlation were 

examined between seed per pod and hundred seed weight(r= 0.55**) (Table 6). This result in 

agreement with the works of Chavan, et al. [24]; Arshad, et al. [25].On the basis of the results 

i.e. the higher positive correlation of 50% days to flowering and plant height with above ground 

dry biomass, it is suggested that these two traits are the major and direct contributors towards 

biomass yield.  

 
Table-6. Pearson Correlation Coefficients between yield and yield related components in 17 kabuli-type chickpea 
genotypes. 

 
Where: YLD= grain yield, DF= days to flower, DM= days to mature, PPP= pod per plant, SPP= seed per pod, PHT=plant height, BM= 
biomass yield, HI= harvest index, HSW= hundred seed weight. 

 

5. CONCLUSION 

Chickpea is one of the major pulses grown in Ethiopia, mainly by subsistence farmers usually 

under rain-fed conditions Variability, heritability and correlation are the backbone of every 

selection method. There were significant genetic differences among the genotypes for all the 

traits, which suggested massive scope of selection for genotypes with desirable characters. The 

traits which revealed high magnitude of heritability and genetic advance were controlled by fixed 

genetic factors which advocate that they might be improved through selection. The characters 



Current Research in Agricultural Sciences, 2015, 2(4): 123-131 

 

 

130 
© 2015 Conscientia Beam. All Rights Reserved. 

positively and significantly associated with grain yield could be reliable selection criteria for grain 

yield in chickpea for this group of genotypes. In the present investigation high to low heritability 

with moderate estimates of genetic advance recorded for pod per plant, seed per pod, plant height 

days to flowering, days to maturity,100 seed weight and grain yield where careful selection may 

lead towards improvement for these traits. Hence, provides better opportunities for selecting 

plant material for these traits in chickpea. 

 

6. ACKNOWLEDGMENTS 

We would like to thank our appreciation to TL-I Project for its financial support. We are also 

indebted for the assistances provided by the research and technical staff of the highland pulse 

improvement program of Debre Zeit Agricultural Research Center (DZARC) and Gonder 

Agricultural Research Center (GARC). 

 

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