Research Article
Performance Evaluation of Linseed (Linum usitatissimum L.) Varieties in Buno Bedele Zone, South Western Oromia
Mohammed Tesiso*
,
Garoma Firdisa
Issue:
Volume 8, Issue 2, December 2024
Pages:
24-35
Received:
20 April 2024
Accepted:
15 May 2024
Published:
20 September 2024
Abstract: Linseed (Linum usitatissimum L.) is one of the most important oil crops of Ethiopia and it is considered as the main food crop and the least expensive source of oil for the farmers in many highlands of the country. Even though numerous improved linseed varieties have been released in Ethiopia, the mean seed yield per unit area of the crop remains low due to poor access to improved varieties. To improve the crop’s production and productivity, testing the performance of improved linseed varieties in potential agro ecologies where the varieties have never been grown before is an essential activity. A study was carried out with the objective of testing the performance of improved linseed varieties and their genetic variability for seed yield and related traits in Bedele, Dabo Hana and Didesa districts of Buno Bedele zone, south western Oromia, Ethiopia. This experiment was carried out using twelve linseed varieties were used for investigation (Bekoji-14, Kassa-2, Welen, Bekoji, Kuma, Yadano, Furtu, Bakalcha, Dibane, Horesoba & Jitu) and one local check were sown in randomized complete block design with three replications during the 2022/2023 and 2023/2024 main cropping seasons. Six (6) quantitative morphological traits were collected and analyzed by using R-software accordingly. Combined analysis of data from the three locations revealed that there is significant difference among varieties for days to flowering, days to maturity and grain yield, but non-significant for plant height (cm), number of primary branches per plant and number of capsules per plant. Significant effect of location was observed in plant height, number of primary branch per plant, number of capsule per plant and grain yield however non-significant in days to flowering and days to maturity. The interaction of Variety X location was significant for days to flowering, days to maturity, plant height and grain yield, however non-significant for number of primary branch per plant and number of capsule per plant. The maximum seed yield was recorded in varieties Kuma (1588.9 kgha-1) followed by Beokoji-14 (1476.7 kgha-1) and the lowest yield (978.9 kg/ha-1) was obtained from local check. The combine AMMI analysis for seed yield across environments revealed significantly affected by environments that hold 26.6% of the total variation. The genotype and genotype by environmental interaction were significant and accounted for 12.40% and 19.42% respectively. Principal component 1 and 2 accounted for 10.78 % and 6.13% of the GEI respectively with a total of 16.91% variation. In general, Kuma and Bekoji-14 varieties were identified as the best varieties for yielding ability, stability and recommended in the area and with similar agro-ecologies.
Abstract: Linseed (Linum usitatissimum L.) is one of the most important oil crops of Ethiopia and it is considered as the main food crop and the least expensive source of oil for the farmers in many highlands of the country. Even though numerous improved linseed varieties have been released in Ethiopia, the mean seed yield per unit area of the crop remains l...
Show More
Review Article
Advancements in Cardamom (Elettaria cardamomum Maton) Breeding: Genetic Diversity, Biotech Strategies, and Future Directions
Mohammedsani Zakir Shehasen*
Issue:
Volume 8, Issue 2, December 2024
Pages:
36-47
Received:
2 October 2024
Accepted:
29 October 2024
Published:
20 November 2024
Abstract: Cardamom (Elettaria cardamomum Maton), often referred to as the 'Queen of Spices,' belongs to the Zingiberaceae family and is noted for its unique flavor and aroma. As an herbaceous perennial, cardamom thrives in the shaded environments of the Western Ghats in South India, where it exhibits significant genetic diversity necessary for breeding improvement. This paper explores the genetic resources of cardamom, including advances in breeding methodologies and biotechnological approaches aimed at enhancing productivity and quality. Key breeding strategies include clonal selection, hybridization, and mutation breeding, which have led to the development of several high-yielding and stress-resistant varieties. The integration of molecular techniques, such as marker-assisted selection and genetic transformation, offers prospects for tapping into cardamom's genetic diversity for future improvements. However, the genetic erosion of natural cardamom populations necessitates urgent conservation efforts to safeguard this valuable germplasm. This review emphasizes the importance of innovative breeding techniques and strategic direction for the sustainable enhancement of cardamom as a critical global spice crop.
Abstract: Cardamom (Elettaria cardamomum Maton), often referred to as the 'Queen of Spices,' belongs to the Zingiberaceae family and is noted for its unique flavor and aroma. As an herbaceous perennial, cardamom thrives in the shaded environments of the Western Ghats in South India, where it exhibits significant genetic diversity necessary for breeding impro...
Show More
