Abstract
BACKGROUND: Morphological plasticity is one of the capacities of plants to modify their morphological appearance in response to external stimuli. A plant's morphology and physiology are constantly tuned to its variable surroundings by complex interactions between environmental stimuli and internal signals. In most of plant species,, such phenotypic and physiological expression varies among different varieties based on their levels of particular environmental stress conditions. However, the morphological and yield responses of common bean varieties to different environmental conditions are not well known. The purpose of the study was to evaluate morphological and yield response of common bean to soil moisture stress and to investigate the morphological mechanism by which common bean varieties tolerate fluctuations in moisture stress. METHODS: A pot experiment was carried out to investigate the effects of different moisture levels on the phenotypic and yield responses of common bean varieties. A factorial combination of five common bean varieties (Hirna, kufanzik, Awash-1, Ado, and Chercher) and three moisture levels (control, waterlogging stress, and moisture deficit stress) was used in three replications. Moisture stress treatments were started 20 days after planting, at the trifoliate growth stage. To evaluate the response of each variety, morphological and yield data were collected at week intervals. MAIN RESULTS: The results indicated that moisture levels and varieties had a significant influence on all growth parameters. Crop phenology was significantly influenced by the interaction effect of moisture level and variety. Exposing Hirna variety to moisture stress led to extended flowering and pod setting by 23 and 24 days, respectively, compared to the other treatments. The results showed that the phenotypic responses to moisture deficit and waterlogging stress varied between varieties. Waterlogging stress had a stronger reduction effect on the fresh weight, dry weight and leaf area of common bean varieties than moisture deficit and the control. Pods per plant, seeds per plant, grain yield per plant, and harvest index were significantly influenced by the varieties, moisture stress levels and their interaction. Except for Chercher and Hirna. However, varieties Ado, kufanzik and Awasha-1 did not show significant differences on the time of flower initiation due to moisture level. Biomass and growth in leaf fresh weight, leaf dry weight, leaf area, leaf number and plant height were significantly influenced by moisture level. When moisture deficit and waterlogging stress occurred, Ado and Awash-1 were more responsive to moisture stress than Hirna, Chercher, and Kufanzik. CONCLUSION: Hence, Hirna and Kufanzik varieties were found to be tolerant because they produced higher yields than the Chercher, Awash-1, and Ado varieties.
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Claims 12
Claim · model-written summary
Moisture levels and varieties significantly influenced all growth parameters of common bean.
- Taxon
- common bean
Phaseolus vulgarist0 - Treatment
- moisture levelse1
- Outcome
- all growth parameterse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e1“The results indicated that moisture levels and varieties had a significant influence on all growth parameters”
Claim · model-written summary
Crop phenology was significantly influenced by the interaction of moisture level and variety.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- interaction effect of moisture level and varietye2
- Outcome
- Crop phenologye2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e2“Crop phenology was significantly influenced by the interaction effect of moisture level and variety”
Claim · model-written summary
Moisture stress on the Hirna variety extended flowering and pod setting by 23 and 24 days compared with the other treatments.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Hirnae3
- Treatment
- moisture stresse3
- Outcome
- flowering and pod settinge3
- Direction
- extendede3
- Value
- 23 and 24 dayse3
- Comparator
- the other treatmentse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e3“Exposing Hirna variety to moisture stress led to extended flowering and pod setting by 23 and 24 days, respectively, compared to the other treatments”
Claim · model-written summary
Phenotypic responses to moisture deficit and waterlogging stress varied between varieties.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- moisture deficit and waterlogging stresse4
- Outcome
- phenotypic responsese4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e4“The results showed that the phenotypic responses to moisture deficit and waterlogging stress varied between varieties”
Claim · model-written summary
Waterlogging stress had a stronger reduction effect on fresh weight, dry weight and leaf area than moisture deficit and the control.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- Waterlogging stresse5
- Outcome
- fresh weight, dry weight and leaf areae5
- Direction
- stronger reduction effecte5
- Comparator
- moisture deficit and the controle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e5“Waterlogging stress had a stronger reduction effect on the fresh weight, dry weight and leaf area of common bean varieties than moisture deficit and the control”
Claim · model-written summary
Pods per plant, seeds per plant and grain yield per plant were significantly influenced by varieties, moisture stress levels and their interaction.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- moisture stress levelse6
- Outcome
- Pods per plant, seeds per plant, grain yield per plante6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e6“Pods per plant, seeds per plant, grain yield per plant, and harvest index were significantly influenced by the varieties, moisture stress levels and their interaction”
Claim · model-written summary
Harvest index was significantly influenced by varieties, moisture stress levels and their interaction.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- moisture stress levelse6
- Outcome
- harvest indexe6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e6“Pods per plant, seeds per plant, grain yield per plant, and harvest index were significantly influenced by the varieties, moisture stress levels and their interaction”
Claim · model-written summary
Ado, kufanzik and Awasha-1 showed no significant difference in time of flower initiation between moisture levels.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Ado, kufanzik and Awasha-1e7
- Treatment
- moisture levele7
- Outcome
- time of flower initiatione7
- Direction
- did not show significant differencese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e7“However, varieties Ado, kufanzik and Awasha-1 did not show significant differences on the time of flower initiation due to moisture level”
Claim · model-written summary
Leaf fresh weight, leaf dry weight and leaf area were significantly influenced by moisture level.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- moisture levele1
- Outcome
- leaf fresh weight, leaf dry weight, leaf areae1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e1“Biomass and growth in leaf fresh weight, leaf dry weight, leaf area, leaf number and plant height were significantly influenced by moisture level”
Claim · model-written summary
Leaf number and plant height were significantly influenced by moisture level.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- moisture levele1
- Outcome
- leaf number and plant heighte1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e1“Biomass and growth in leaf fresh weight, leaf dry weight, leaf area, leaf number and plant height were significantly influenced by moisture level”
Claim · model-written summary
Ado and Awash-1 were more responsive to moisture stress than Hirna, Chercher and Kufanzik when moisture deficit or waterlogging occurred.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Ado and Awash-1e1
- Treatment
- moisture deficit and waterlogging stresse1
- Outcome
- responsive to moisture stresse1
- Direction
- more responsivee1
- Comparator
- Hirna, Chercher, and Kufanzike1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e1“When moisture deficit and waterlogging stress occurred, Ado and Awash-1 were more responsive to moisture stress than Hirna, Chercher, and Kufanzik”
Claim · model-written summary
Hirna and Kufanzik produced higher yields than the Chercher, Awash-1 and Ado varieties and were found to be tolerant.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Hirna and Kufanzike1
- Outcome
- yieldse1
- Direction
- highere1
- Comparator
- Chercher, Awash-1, and Ado varietiese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“common bean (Phaseolus vulgaris l.) varieties”
e1“Hirna and Kufanzik varieties were found to be tolerant because they produced higher yields than the Chercher, Awash-1, and Ado varieties”
The same questions in other papers
flooding · growth · Phaseolus vulgaris (common bean)Positive and negative results
15 papers in the same direction as this paper · 1 in the opposite direction
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See all 17 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.