Abstract
Assuming that irrigation water salinity influences the growth and yield of cowpea plants, this study aimed to evaluate the effect of irrigation water salinity levels on the morphological and production traits of three cowpea cultivars. The experiment consisted of five salinity levels of irrigation water: (0.01, 1.41, 2.81, 4.21 and 5.61 dS m-1), three cultivars (BRS Tumucumaque, BRS Guariba, and BRS Imponente) and two periods of cultivation. A completely randomized block design was adopted in a split-split plot arrangement with four replications. The following parameters were evaluated: stem diameter (SD), plant height (PH), number of lateral branches (NLB), pod length (PL), number of grains per pod (NGP), ten-pod weight (TPW), number of pods per plant (NPP), 100-grain weight (GW) and grain yield. The data were subjected to analysis of variance by applying the F-test at 5% probability. Regression analysis was performed for the quantitative factor. There was a significant effect of the interaction between factors on all variables analyzed. The increase in irrigation water salinity reduces the morphological performance and yield of the cowpea cultivars BRS Tumucumaque, BRS Guariba, and BRS Imponente. However, the cultivar BRS Tumucumaque was the most tolerant to the negative effects resulting from increased irrigation water salinity.
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Claims 8
Claim · model-written summary
Factors interacted significantly for all analyzed variables.
- Taxon
- cowpea
Vigna unguiculatat0 - Outcome
- all variables analyzede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant effect of the interaction between factors on all variables analyzed.”
t0“Cowpea”
Claim · model-written summary
Higher irrigation water salinity reduced morphological performance in BRS Tumucumaque.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- BRS Tumucumaquee0
- Treatment
- increase in irrigation water salinitye0
- Outcome
- morphological performancee0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in irrigation water salinity reduces the morphological performance and yield of the cowpea cultivars BRS Tumucumaque, BRS Guariba, and BRS Imponente.”
Claim · model-written summary
Higher irrigation water salinity reduced yield in BRS Tumucumaque.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- BRS Tumucumaquee0
- Treatment
- increase in irrigation water salinitye0
- Outcome
- yielde0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in irrigation water salinity reduces the morphological performance and yield of the cowpea cultivars BRS Tumucumaque, BRS Guariba, and BRS Imponente.”
Claim · model-written summary
Higher irrigation water salinity reduced morphological performance in BRS Guariba.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- BRS Guaribae0
- Treatment
- increase in irrigation water salinitye0
- Outcome
- morphological performancee0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in irrigation water salinity reduces the morphological performance and yield of the cowpea cultivars BRS Tumucumaque, BRS Guariba, and BRS Imponente.”
Claim · model-written summary
Higher irrigation water salinity reduced yield in BRS Guariba.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- BRS Guaribae0
- Treatment
- increase in irrigation water salinitye0
- Outcome
- yielde0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in irrigation water salinity reduces the morphological performance and yield of the cowpea cultivars BRS Tumucumaque, BRS Guariba, and BRS Imponente.”
Claim · model-written summary
Higher irrigation water salinity reduced morphological performance in BRS Imponente.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- BRS Imponentee0
- Treatment
- increase in irrigation water salinitye0
- Outcome
- morphological performancee0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in irrigation water salinity reduces the morphological performance and yield of the cowpea cultivars BRS Tumucumaque, BRS Guariba, and BRS Imponente.”
Claim · model-written summary
Higher irrigation water salinity reduced yield in BRS Imponente.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- BRS Imponentee0
- Treatment
- increase in irrigation water salinitye0
- Outcome
- yielde0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in irrigation water salinity reduces the morphological performance and yield of the cowpea cultivars BRS Tumucumaque, BRS Guariba, and BRS Imponente.”
Claim · model-written summary
BRS Tumucumaque was the most tolerant cultivar under salinity.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- BRS Tumucumaquee0
- Outcome
- tolerante0
- Direction
- most tolerante0
- Qualifier
- increased irrigation water salinitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cultivar BRS Tumucumaque was the most tolerant to the negative effects resulting from increased irrigation water salinity.”
t0“Cowpea”
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See all 61 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.