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Articles by Yehenew Getachew
Total Records ( 2 ) for Yehenew Getachew
  Teshome Ashagrie , Derbew Belew , Sentayehu Alamerew and Yehenew Getachew
  A field experiment was conducted at Sirinka Agricultural Research centre Kobo sub center research field during the 2012/2013 under irrigation condition with the objective of assessing the effect of different planting time (October 25, November 5 and November 15) and mother bulb sizes (2-3, 3.1-4 and 4.1-5 cm) on onion seed yield and quality. The study was conducted by using 3x3 factorial design with three replications. Data was collected on growth, yield and quality parameters and analyzed using SAS version 9.2 statistical software. The results of the study showed significant interactions between mother bulb size and planting time on days to 50% flowering, scape diameter (cm), seed yield per plant (g), seed yield per hectare (kg) and germination index. The maximum seed yield (1155.73 kg ha-1) was obtained from large bulbs planted on October 25 while the least (75.15 kg ha-1) from small bulbs planted on November 15. In terms of germination index, the highest (6.03) was obtained from the large bulbs planted on October 25, whereas the lowest germination index (3.37) was from small bulbs planted on November 15. Early planting on October 25 increased germination percentage by 39% than the last planting 15 November. Regarding mother bulb size, large bulbs increased germination percentage by 13.32% than the small bulbs. Correlation coefficient indicated that umbel diameter, seed number per umbel, seed weight per umbel and seed yield per plant were found to have positively and highly significantly correlated with seed yield per hectare. Therefore, based on the findings of the current study, early planting (October 25) of large bulbs (4.1-5 cm) can be used for high yield and better quality of onion seeds. Considering the above mentioned results, it would be advisable to further investgated the seed production potential of different onion types at different locations over years so as to come up with best recommendation. In addition, plant spacing, fertilizer rate and storage methods of onion seed could also be considered. Furthermore, the seed quality performance of imported and locally produced onion seeds could be investigated to promote the onion seed industry.
  Seleshi Delelegne , Derbew Belew , Ali Mohammed and Yehenew Getachew
  A field experiment was conducted at two locations under Jimma condition with the aim of investigating the performance of different varieties of hot pepper for growth, dry pod yield and quality, thereby, to recommend best adapting and high yielding variety/varieties for the farmers in the study area. The study was conducted from October 2009-March 2010, at JUCAVM experimental field and Seka Chokorsa woreda under irrigated condition using nine hot pepper varieties (Mareko fana, Bako local, Melka zala, Weldele, Melka shote, Oda haro, Dube medium, Dube short) and one local (Gojeb local) as a control. The experiment consisted of two factors (location and variety) and was laid out in a split-plot arrangement in a randomized complete block design with three replications. The result of the study showed significant interactions between location and varieties on days to 50% flowering, days to first harvest, mean number of flowers per plant, canopy diameter, mean number of branches (primary, secondary and territory), shoot and root dry weight (g), number of fruit per plant, number of seed per fruit, mean seed weight per fruit, marketable, unmarketable and total yield (t ha-1), fruit dry weight (g), pericarp thickness, fruit length and fruit diameter. As a result, the earliest variety to attain days to 50% flowering was Gojeb local at Kechema site followed by Mareko fana at both locations. The variety to attain shortest days to first harvest was recorded from variety Gojeb local while the highest number of fruits per plant was from Weldele at Kechema site. On the other hand the highest primary, secondary and tertiary branches were recorded from variety Weldele at Kechema site. Similarly the thickest fruit size was obtained from Mareko fana at Kechema site, whereas, the widest fruit diameter was recorded from Mareko fana, Bako local, Dube medium and Dube short at Kechema site, respectively. The highest marketable yield (t ha-1) of hot peppers was recorded from Varieties Weldele, Mareko fana, Dube medium and Dube short at JUCAVM and Kechema, respectively while the highest total yield (t ha-1) was recorded from Weldele and Mareko fana at both locations. The high yielding capacities were attributed to their early flowering and maturity, days to first harvest, high marketable and total yield, dry weight content of the varieties as well as their reaction to disease.
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