Abstract
Objective: Ethiopia has possibly enormous potential for potato production. The average national yield is less compared to other countries due to lack of optimum fertilization and irrigation. To improve these agronomic practices an experiment was conducted in Jimma University College of Agriculture and Veterinary Medicine greenhouse to compare the effect of nitrogen rates and irrigation regimes on yield and yield component. Methodology: The experiment was 333 factorial with three replications laid down in a randomized complete block design comprising Jalene, Guassa and Degemeng potato varieties: 130, 110 and 90 kg haG 1 nitrogen rates and 100, 80 and 60% irrigation regimes. Data was subjected to analysis of SAS 9.2 software and means separation were made using Least Significant Difference (LSD) at 5% significance level. Result: The results indicated effects of variety and irrigation significantly affected stem number and LAI. Both irrigation and variety highly significantly affected total dry weight and tuber number. Degemeng variety recorded the highest dry weight, followed by Jalenie and Guassa. The highest total dry weight was obtained at 100% irrigation, while 60% irrigation produced the lowest. Variety and irrigation interaction significantly affected tuber fresh weight. Guassa variety at 100% irrigation recorded the highest tuber fresh weight. Degemeng variety at 60% irrigation recorded the lowest tuber fresh weight. Conclusion: From the results, it can be concluded that irrigation regimes and variety were significantly affected yield and yield components while the nitrogen rates were not influenced yield and yield components of the potato varieties significantly. Further research involving higher nitrogen rates and same irrigation regimes followed by post harvest activity and quality considerations in greenhouse and open field is suggested.
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Claims 13
Claim · model-written summary
Variety significantly affected stem number and LAI of potato.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- varietye1
- Outcome
- stem number and LAIe1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e1“effects of variety and irrigation significantly affected stem number and LAI”
Claim · model-written summary
Irrigation significantly affected stem number and LAI of potato.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- irrigatione1
- Outcome
- stem number and LAIe1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e1“effects of variety and irrigation significantly affected stem number and LAI”
Claim · model-written summary
Variety highly significantly affected total dry weight and tuber number of potato.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- varietye2
- Outcome
- total dry weight and tuber numbere2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e2“Both irrigation and variety highly significantly affected total dry weight and tuber number”
Claim · model-written summary
Irrigation highly significantly affected total dry weight and tuber number of potato.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- irrigatione2
- Outcome
- total dry weight and tuber numbere2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e2“Both irrigation and variety highly significantly affected total dry weight and tuber number”
Claim · model-written summary
Degemeng had the highest dry weight, followed by Jalenie and Guassa.
- Taxon
- potatoSolanum tuberosume0
- Material
- Degemenge3
- Outcome
- dry weighte3
- Direction
- higheste3
- Comparator
- Jalenie and Guassae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e3“Degemeng variety recorded the highest dry weight, followed by Jalenie and Guassa”
Claim · model-written summary
The highest total dry weight was at 100% irrigation rather than 60% irrigation.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- 100% irrigatione4
- Outcome
- total dry weighte4
- Direction
- higheste4
- Comparator
- 60% irrigatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e4“The highest total dry weight was obtained at 100% irrigation, while 60% irrigation produced the lowest”
Claim · model-written summary
The lowest total dry weight was at 60% irrigation rather than 100% irrigation.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- 60% irrigatione4
- Outcome
- total dry weighte4
- Direction
- loweste4
- Comparator
- 100% irrigatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e4“The highest total dry weight was obtained at 100% irrigation, while 60% irrigation produced the lowest”
Claim · model-written summary
The variety and irrigation interaction significantly affected tuber fresh weight.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Variety and irrigation interactione5
- Outcome
- tuber fresh weighte5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e5“Variety and irrigation interaction significantly affected tuber fresh weight”
Claim · model-written summary
Guassa at 100% irrigation had the highest tuber fresh weight.
- Taxon
- potatoSolanum tuberosume0
- Material
- Guassae6
- Treatment
- 100% irrigatione6
- Outcome
- tuber fresh weighte6
- Direction
- higheste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e6“Guassa variety at 100% irrigation recorded the highest tuber fresh weight”
Claim · model-written summary
Degemeng at 60% irrigation had the lowest tuber fresh weight.
- Taxon
- potatoSolanum tuberosume0
- Material
- Degemenge7
- Treatment
- 60% irrigatione7
- Outcome
- tuber fresh weighte7
- Direction
- loweste7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e7“Degemeng variety at 60% irrigation recorded the lowest tuber fresh weight”
Claim · model-written summary
Irrigation regimes significantly affected yield and yield components of potato.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- irrigation regimese1
- Outcome
- yield and yield componentse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e1“irrigation regimes and variety were significantly affected yield and yield components while the nitrogen rates were not influenced yield and yield components of the potato varieties significantly”
Claim · model-written summary
Variety significantly affected yield and yield components of potato.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- varietye1
- Outcome
- yield and yield componentse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e1“irrigation regimes and variety were significantly affected yield and yield components while the nitrogen rates were not influenced yield and yield components of the potato varieties significantly”
Claim · model-written summary
Nitrogen rates did not significantly influence yield and yield components of potato.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- nitrogen ratese1
- Outcome
- yield and yield componentse1
- Direction
- not influencede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jalene, Guassa and Degemeng potato varieties”
e1“irrigation regimes and variety were significantly affected yield and yield components while the nitrogen rates were not influenced yield and yield components of the potato varieties significantly”
The same questions in other papers
irrigation · growth · Solanum tuberosum (potato)Positive and negative results
20 papers in the same direction as this paper · 11 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- no effect
30 papers more in this group
See all 34 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.