Research Article
Morphological Variations in Bread Wheat (Triticum aestivum L.) Genotypes in Gechi District, South West Ethiopia
Garome Shifaraw*,
Sentayehu Alamerew,
Techale Birhan
Issue:
Volume 12, Issue 1, April 2024
Pages:
1-7
Received:
20 November 2023
Accepted:
7 December 2023
Published:
11 January 2024
Abstract: With the aim of describing variance in morphological features of bread wheat genotypes using frequency and Shannon-Weaver diversity index, the current study was conducted on forty-nine genotypes of bread wheat, including two released varieties (Wane & Lemu). The experiment was laid out in a 7x7 simple lattice designs. White glumes was the most frequent (67.3 %) within the genotypes and red/brown glume color was the less frequent (20.4%), while purple/black glumes was the least frequent phenotypic frequency (12.2%). The present study indicates that most of the studied traits showed polymorphism exception of glume hairiness. Shannon Weaver diversity index ranged from low (Hꞌ=0.4) for glume hairness to high (0.98) for spike density. The highest diversity index was observed for spike density (Hꞌ=0.98) followed by seed vitreousness (Hꞌ=0.94) and seed size (Hꞌ=0.84) which showed the presence of high diversity among genotypes for these traits. These results demonstrated the comparatively significant diversity of the germplasm. Programs for improvement can benefit from this genetic variability. However, drawing firm conclusions from the current results based just on morphology is not possible. Therefore, it is advised that research be done on molecular characteristics as well as other quality attributes such protein content.
Abstract: With the aim of describing variance in morphological features of bread wheat genotypes using frequency and Shannon-Weaver diversity index, the current study was conducted on forty-nine genotypes of bread wheat, including two released varieties (Wane & Lemu). The experiment was laid out in a 7x7 simple lattice designs. White glumes was the most freq...
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Review Article
Over View of Coffee (Arabica Coffee) Breeding in Ethiopia
Issue:
Volume 12, Issue 1, April 2024
Pages:
8-12
Received:
12 December 2023
Accepted:
29 December 2023
Published:
5 February 2024
Abstract: Ethiopia, which is the origin and place of many varieties of Arabica coffee, is lucky in this regard. Although the genetic diversity of the coffee population provides a good opportunity for improvement, the lack of improved hybrids is a major problem. Arabica coffee (Coffea arabica L.) is the main coffee species in world coffee production, accounting for more than 60% of total production. 30% of Ethiopia's foreign exchange earnings come from Arabica coffee. Arabica coffee's unique aroma, taste and lack of caffeine make it a popular coffee variety in coffee producing and consuming countries. Since Ethiopia is the homeland of Arabica coffee, major genetic changes are expected in coffee genetic resources required for further development to meet the world's demand for Arabica coffee. The coffee plant is native to the Coffea and Rubiaceae genera. There are only two important and worldwide commercial species: Coffea arabica (Coffea arabica L.) and Coffea canephora Pierre. It is thought that the plant first appeared in Arabica coffee (Coffea arabica L.), whose genes are found in the southwestern region of Ethiopia. Greater genetic diversity of endogenous coffee varieties may lead to increased yield and reproductive characteristics. Therefore, the coffee program began in the 1970s, when coffee cherry virus (CBD) first appeared in Ethiopia. Breeding, selection and hybridization methods have been used since the beginning of breeding. Creating a simple understanding of Arabica coffee genetics and marketing 43 improved coffee varieties, including the 09 F1 hybrid, 6,793 entries were recorded and considered outstanding results. The article talks about specific achievements, challenges and hopes for the future.
Abstract: Ethiopia, which is the origin and place of many varieties of Arabica coffee, is lucky in this regard. Although the genetic diversity of the coffee population provides a good opportunity for improvement, the lack of improved hybrids is a major problem. Arabica coffee (Coffea arabica L.) is the main coffee species in world coffee production, accounti...
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Research Article
Evaluation of Coffee Genotype for Drought Tolerance and Water Use Efficiency in Western Ethiopia at West Wollega
Huluager Ayanaw*,
Zelalem Tamiru,
Minida Tadese,
Addisu Asefa
Issue:
Volume 12, Issue 1, March 2024
Pages:
13-18
Received:
11 January 2024
Accepted:
30 January 2024
Published:
21 February 2024
Abstract: The growth and output of coffee are significantly hampered by drought. To lessen the effects of climate change on coffee production, it is crucial to choose genotypes of Arabica coffee that are resistant to drought. The goal of the study was to select genotypes of Wellega coffee that are drought-tolerant at the Haru Agricultural Research Sub-Center in the Oromia National Regional State, Western Ethiopia. The experiment was carried out in a controlled environment from 2017 to 2019 G. C., with three replications laid out in RCBD. For 28 days, two watering regimes—well-watered and water-stressed—were applied to fourteen genotypes of Wellega coffee. The mother trees of genotype were tested at field condition. The experiment's findings showed that the genotypes not differed significantly in terms of total dry matter, relative leaf water content, and leaf retention capacity as well as in terms of the degree of wilting and in all destructive parameters. So, to select the drought tolerance coffee genotypes the stress period should be minimized in to 15-21 days.
Abstract: The growth and output of coffee are significantly hampered by drought. To lessen the effects of climate change on coffee production, it is crucial to choose genotypes of Arabica coffee that are resistant to drought. The goal of the study was to select genotypes of Wellega coffee that are drought-tolerant at the Haru Agricultural Research Sub-Center...
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