Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Hoogerheide, E. S. S.; Filho, Joaquim Adelino Azevedo; Vencovsky, Roland; Zucchi, Maria Imaculada; Zago, Bruno Wagner; Pinheiro, José Baldin

doi:10.4238/gmr16029612

Cited by 14 publications

(11 citation statements)

References 24 publications

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“…This grouping pattern of accessions suggested no parallelism between genetic divergence and the geographical distribution of genotypes. These findings were supported by the previous findings (Hoogerheide et al, 2017;Benke et al, 2018;Ebrahimi et al, 2019) which reported there is no association between the geographical region and the clustering of genotypes. This may be due to the free exchange of material from one place to another (Bamaniya et al, 2018).…”

Section: Origin and Cluster Of Garlic Accessionssupporting

confidence: 90%

“…Garlic has a wide range of genetic diversity; depending on soil type, humidity, latitude, altitude, and cultural practices of its cultivation, even a single garlic accession would have a lot of phenotypic variabilities (Volk et al., 2004; Tesfaye et al., 2021). Natural variations in plant parts, for example, have economic significance and suggest the possibility of garlic improvement (Hoogerheide et al., 2017). In addition, a great number of cultivars have resulted through natural and human selection for adaptation in growing areas (Viana et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

“…of phenotypic variabilities (Volk et al, 2004;Tesfaye et al, 2021). Natural variations in plant parts, for example, have economic significance and suggest the possibility of garlic improvement (Hoogerheide et al, 2017). In addition, a great number of cultivars have resulted through natural and human selection for adaptation in growing areas (Viana et al, 2015).…”

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confidence: 99%

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Genetic divergence and cluster analysis for bulb yield and related traits in garlic (Allium sativum) accessions at Dorze, southern Ethiopia

Abebe

2022

Agrosystems Geosci & Env

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Despite the benefits of garlic (Allium sativum L.) in human life, only a little amount of breeding effort has been done so far. The initial stages of a systemic breeding program include the collection and evaluation of genetic variability. As a result, understanding genetic divergence and cluster dispersion between accessions is a great way to improve future crops. This study was aimed to estimate the extent of genetic divergence across 28 Ethiopian garlic accessions using 11 agromorphological traits to identify parent lines for hybridization programs. The experiment was set up with a randomized complete block design with three replicates in Dorze, southern Ethiopia, during the 2017 main harvest season. The cluster analysis revealed the existence of four divergent groups, with the greatest distance among them being between Groups I and IV (D 2 = 4.15), and the shortest distance being between Groups I and II (D 2 = 2.93). To obtain accessions with high grain yield and early maturing, cross from Clusters I and IV and from III and IV were obtained. Parent material should be produced among clusters rather than within clusters for future hybridization breeding efforts. INTRODUCTIONGarlic (Allium sativum L.) is a plant that originates from Central Asia and is grown worldwide for culinary, medicinal, and religious purposes (Ayalew, 2015;Dangi et al., 2018).Because of the presence of sulfur compounds, biological agents (allicin), and other derivatives, garlic has the potential to boost the immune system for the treatment of human diseases (Jabbes et al., 2012;Wang et al., 2014). It also has the characteristic of a pungent odor and is rich in sugar, protein, fat, calcium, potassium, phosphorous, iodine fiber, and sili-Abbreviations: PCA, principal components analysis.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Origin and Cluster Of Garlic Accessionssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Genetic divergence and cluster analysis for bulb yield and related traits in garlic (Allium sativum) accessions at Dorze, southern Ethiopia

Abebe

2022

Agrosystems Geosci & Env

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“…Studies of genetic variability with the help of suitable genetic parameters are therefore indispensable for an effective breeding program [5,15]. e yield is a very complex unit that is influenced by several yield components that are sensitive to environmental fluctuations [16]. us, the selection according to income components has a better chance of success.…”

Section: Introductionmentioning

confidence: 99%

Genetic Variability, Heritability, and Genetic Advance Estimates in Garlic (Allium sativum) from the Gamo Highlands of Southern Ethiopia

Abebe

2021

International Journal of Agronomy

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Genetic variability is the fundamental requirement for any plant breeding program to develop a superior cultivar. This study aimed to estimate the genetic variability and determine the correlation between the various quantitative characteristics of garlic accessions. The experiment was carried out in the Ezo-Otte area of the Chencha district in the Gamo highlands of southern Ethiopia and 28 garlic accessions were evaluated in a Randomized Complete Block Design with three replicates. Various morphological descriptors were measured to evaluate the variability and correlation coefficients. The analysis of variance showed a highly significant variation for all characters, which indicates greater variability in the accession. High and moderate heritability in broad sense estimates were obtained for the majority of the traits examined. Days to maturity (28.09), bulb weight (22.33), and bulb diameter (equatorial) (21.33) showed higher genetic advance. The maximum value of the genetic progress as a percentage of the mean was observed in bulb yield, clove weight, bulb diameter (equatorial), and number of leaves. In addition, bulb diameter (equatorial), clove weight, bulb weight, and plant height were observed to be highly hereditary coupled with high genetic advance as a percentage of the mean, suggesting that they can be improved by direct selection. Coefficient analysis has shown that maximum attention should be paid to bulb diameter (equatorial), the number of cloves, bulb diameter (equatorial), bulb weight, plant height, and leaf length, as these traits also correlate positively and significantly with bulb yield.

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“…Tocher optimization is a simple clustering method that separates genotypes into groups such that the average distances within the groups are always lower than the average distances between the groups (Cruz et al, 2012). This method has been widely and successfully used in genetic divergence studies among accessions (Cantelli et al, 2016;Costa et al, 2016;Manuel et al, 2016;Hoogerheide et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Euterpe edulis seed germination parameters and genotype selection

et al. 2019

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The palm tree juçara (Euterpe edulis Mart) is considered one of the most important and threatened native species in the Atlantic Forest. The search for juçara seeds (Euterpe edulis Martius) has increased, generating a need for technologies favorable to their production, quality and conservation. The aim of this study was to describe the seed germination patterns of 45 juçara accessions by using a nonlinear model to examine the behavior of these patterns and select superior genotypes. After clustering 45 juçara accessions into four groups, four nonlinear models, namely, the logistic, Gompertz, von Bertalanffy and Weibull models, were tested based on their fit for each group of accessions. The Gompertz model presented the best fit to describe the germination growth curve of E. edulis seeds. Groups 3 and 4 presented the highest daily germination rates and were considered the most vigorous. Analysis of deviance was performed, revealing genetic variability among the genotypes in terms of seed germination and vigor. It was possible to find a nonlinear model that best explained our data, and this model may also be a promising model for other palm tree species. It is possible to select genotypes based on the characters we analyzed, due to the elevated genetic variability.

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Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Cited by 14 publications

References 24 publications

Genetic divergence and cluster analysis for bulb yield and related traits in garlic (Allium sativum) accessions at Dorze, southern Ethiopia

Genetic divergence and cluster analysis for bulb yield and related traits in garlic (Allium sativum) accessions at Dorze, southern Ethiopia

Genetic Variability, Heritability, and Genetic Advance Estimates in Garlic (Allium sativum) from the Gamo Highlands of Southern Ethiopia

Euterpe edulis seed germination parameters and genotype selection

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