Adaptation Evaluation of Released Irrigated Rice (Oryza sativa L.) Varieties in Tendaho Sugar Factory, Afar Regional State of Ethiopia
Welday Gebreegziabher,
Zinaw Dilnesaw,
Tesfay Hailu,
Fikadu Abdissa,
Abiy Getaneh,
Abera Bedada
Issue:
Volume 11, Issue 1, June 2023
Pages:
1-7
Received:
16 June 2023
Accepted:
22 July 2023
Published:
27 September 2023
Abstract: Field experiment on adaptation evaluation of five irrigated rice varieties was conducted using Randomized Complete Block Design replicating three times with surface irrigation. This study was executed for the objective of assessing the adaptation capacity of the varieties to isolate the high yielding and heat tolerant varieties in the study area to produce at commercial level for additional income of the factory using freely available resources, like labor and free land not covered by sugarcane. Necessary data were collected at their right stage following their suitable data collection procedures. All collected data were analyzed using SAS software and mean comparisons among treatment means were made by LSD (5%). Significant variation (p<0.05) among the tested varieties were reported owing to their DH, DM, ET, PH, NSLSP, NKPP, GY and TKW characters. However, the varieties didn’t vary significantly (P<0.05) due to their EMD, PL and AGBM traits. Likewise, the yield in the tested varieties shown positively significant correlation (P<0.05) with all yield traits except DH and DM which shown negatively significant correlation (P<0.05). In this trial, highest grain yield of 22.5 Qt/ha was noted from Edget variety. Hibir and Adet varieties also gave statistically similar yield with 19.8 and 19.4 Qt/ha respectively. Therefore, Edget rice variety with highest net profit is recommended for commercial production. However, if any inconvenient condition is faced with this variety, Hibir and Adet varieties can be used as an additional option for commercial production of rice in the study area.
Abstract: Field experiment on adaptation evaluation of five irrigated rice varieties was conducted using Randomized Complete Block Design replicating three times with surface irrigation. This study was executed for the objective of assessing the adaptation capacity of the varieties to isolate the high yielding and heat tolerant varieties in the study area to...
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Genotype by Environment Interaction and Stability Analysis in Sunflower Genotypes
Issue:
Volume 11, Issue 1, June 2023
Pages:
8-11
Received:
26 June 2023
Accepted:
27 September 2023
Published:
9 October 2023
Abstract: The study was conducted during the main cropping season of 2019/2020 to evaluate advanced sunflower genotypes for its stability over multiple environments. The study was carried out at six locations namely; Holeta, Debrezeit, Fenoteselam, Arsi Negele, Kulumsa and Ambo. Randomized complete block design with four replication was used in layout of the experiment. Data were collected for seed yield and yield related components and subjected to analysis using R-software. AMMI and GGE-biplot were used to estimate the stability of genotypes across test environments. The results from AMMI analysis of variance showed that there is significant difference for environment, genotype and genotype by environment interaction for seed yield. AMMI analysis of variance for oil content revealed the significant differences for genotypes, genotype by environment interaction and non-significant for environment. The Gollob’s test showed that total variation greater than 70% was explained together by PC1 and PC2 for both seed yield and oil content. AMMI 1 bi-plot analysis for seed yield revealed that E1 and E5 was high seed yielder than others and genotypes, G4, G5 and G2 were stable genotypes relative to others. AMMI2 Bi-plot showed genotypes G3, G1, G6 and G8 were stable for seed yield whereas, G7, G8 and G1 were stable for oil content.
Abstract: The study was conducted during the main cropping season of 2019/2020 to evaluate advanced sunflower genotypes for its stability over multiple environments. The study was carried out at six locations namely; Holeta, Debrezeit, Fenoteselam, Arsi Negele, Kulumsa and Ambo. Randomized complete block design with four replication was used in layout of the...
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