Research Article
Demonstration of Onion Seed Production Technologies Under Irrigated Condition of Upper and Middle Awash Areas of Ethiopia
Issue:
Volume 13, Issue 1, February 2025
Pages:
1-14
Received:
2 December 2024
Accepted:
13 December 2024
Published:
21 January 2025
DOI:
10.11648/j.sjams.20251301.11
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Abstract: The onion (Allium cepa L.) is a biennial vegetable crop of the Alliaceae family, demanding high-quality seeds for successful cultivation. The Ethiopian Institute of Agricultural Research (EIAR) has prioritized onion as one of the key crops for research and development, aiming to improve yield and quality through the distribution of improved varieties and production technologies. In Ethiopia, the informal sector plays a crucial role in seed supply, meeting the demand largely through unorganized local markets or informal imports. This study aimed to demonstrate the seed production potential of two onion varieties, Nafis and Nafid, using a participatory approach in small-scale irrigation settings across two kebeles in Fentale and Amibara districts during the 2021/22 cropping season. A participatory research group (PRG) approach was employed, connecting agro-pastoralists who received training on onion seed production techniques. The field experiment was applied on systematically selected agro-pastoralists' plots of 10m × 10m, with transplant done 45-55 days after sowing. Data on seed yield and yield-related traits, including the number of stalks per plant, stalk diameter, length of the primary stalk, and number of umbels per plant, were collected and analyzed using an independent two-sample t-test in SAS software (version 9.0). Results showed a significant yield difference between the two varieties, with Nafis producing a regular seed yield of 10.72 q/ha, compared to 9.17 q/ha for Nafid, showcasing a yield advantage of 1.55 q/ha. This superiority of the Nafis variety was consistent across all experimental sites. The study concluded that the Nafis variety is more suitable for seed production in the tested regions, and suggests its potential to enhance seed yield for agro-pastoralists. The participatory approach and training provided to stakeholders were essential in improving knowledge, productivity, and the adoption of improved agricultural practices.
Abstract: The onion (Allium cepa L.) is a biennial vegetable crop of the Alliaceae family, demanding high-quality seeds for successful cultivation. The Ethiopian Institute of Agricultural Research (EIAR) has prioritized onion as one of the key crops for research and development, aiming to improve yield and quality through the distribution of improved varieti...
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Review Article
Survey of Reliability Analysis of Weighted K-out-of-N System
Ragi Krishnan*
Issue:
Volume 13, Issue 1, February 2025
Pages:
15-21
Received:
24 December 2024
Accepted:
18 January 2025
Published:
10 February 2025
DOI:
10.11648/j.sjams.20251301.12
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Abstract: Computer controlled systems used in critical care systems often utilize redundancy to achieve the required level of reliability. However, as highly designed systems become more functionally integrated, they generally consist of several kinds of components with unique purposes. This kind of fault-tolerant system design is especially crucial for vital applications including energy systems, medical devices, and aircraft. With extensive applications in engineering systems both in industry and military, a considerable amount of research has been carried out in the area of redundant systems. The most prevalent kind of redundancy is k-out-of-n type redundancy. In order to develop high reliability systems, redundant models like k out of n systems have been developed. In normal circumstances, each component's contribution to system reliability will differ. When a system has weighted components, each component makes a unique contribution to the system's overall performance. Performance of the system is influenced by both system operation and the sum of the components that make up it. This survey paper provides a general overview of the different types of weighted- k-out-of-n: G systems, methods adapted to their reliability assessment, lifetime distributions and stochastic order of these systems. In order to analyse the various models of weighted k-out-of-n systems, an in-depth investigation is conducted.
Abstract: Computer controlled systems used in critical care systems often utilize redundancy to achieve the required level of reliability. However, as highly designed systems become more functionally integrated, they generally consist of several kinds of components with unique purposes. This kind of fault-tolerant system design is especially crucial for vita...
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Research Article
Project RARE (Recall and Relearn) It’s Effect on the Mathematics Performance of Selected Grade11 HUMSS Students
Arianne Rae Caguitla Lucero*
Issue:
Volume 13, Issue 1, February 2025
Pages:
22-26
Received:
14 September 2024
Accepted:
4 November 2024
Published:
17 February 2025
DOI:
10.11648/j.sjams.20251301.13
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Abstract: This study focused on the effect of Project RARE (Recall and Relearn in improving the performance in General Mathematics of selected Grade11 HUMSS students of Tanza National Comprehensive High School during First Quarter period of the school year 2022-2023. This study is a one-group pre-test and post-test design. Mean, mean percentage score, standard deviation and paired sample t-test were used to determine the effectiveness of Project RARE (Recall and Relearn) in improving the performance in General Mathematics of the students. The study revealed the mean score of pre-test is 13.78 while post-test is 20.63 which increased by 6.5 and can be concluded that Project RARE improved the mathematics performance of the students in the first quarter. The computed t-value of -8.59 is at left of the critical t-value of ±2.01 at 5 percent level of significance with 45 degrees of freedom, indicates that there is a significant difference between the pre-test and the post-test results of the subjects of the study. This study was limited to the effects of the Project RARE (Recall And Relearn) in improving the performance of selected Grade11 HUMSS students of Tanza National Comprehensive High School in General Mathematics focusing on the prerequisite skills specifically, Operations on Integers and Operations on Polynomials needed for the First Quarter period of SY 2022-2023. This study reveals that Project RARE (Recall and Relearn) is a new and successful intervention program in recalling and relearning prerequisite skills needed particularly in General Mathematics.
Abstract: This study focused on the effect of Project RARE (Recall and Relearn in improving the performance in General Mathematics of selected Grade11 HUMSS students of Tanza National Comprehensive High School during First Quarter period of the school year 2022-2023. This study is a one-group pre-test and post-test design. Mean, mean percentage score, standa...
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