Abstract
Drought is one of the most unfavorable abiotic factors that can affect the growth and yield of cowpea. Drought at different reproductive stages can interfere with the morphological processes of plants. Therefore this research aim to determine the effect of drought at different reproductive stages on yield and yield components of some cowpea varieties. A screen house experiment was conducted at the Botanical Garden of Biological Science Department, Ibrahim Badamasi Babangida, University during the 2022 cropping season The three cowpea varieties used were; FUAMPEA 1, FUAMPEA 2 and ITK89KD-288 which were planted and subjected to water stress at three different reproductive stages which included; early flowering stage, early pod set stage, early seed filling stage and a well-watered treatment to serve as control. The treatments were arranged in a Complete Randomized Design (CRD) in three replications. Cowpea yield attributes evaluated were; number of pods per plant, pod length, pod weight per pot, number of seeds per pod, 100 seed weight, total grain yield per pot and estimated grain yield per hectare. Results revealed that variety was highly significant (p≤0.01) for pod length, total grain yield per pot and estimated grain yield per hectare. On the other hand, drought was significant (p≤0.05) for pod weight per pot. Variety however was not significant for number of pods per plant, number of seeds per pod and 100 seed weight. Drought showed a highly significant effect (p≤0.01) on number of pods per plant, pod length, pod weight per pot, number of seeds per pod, 100 seed weight, total grain yield per pot and estimated grain yield per hectare. Water stress at early seed filling stage significantly reduced total grain yield per plot and total grain yield per hectare. Drought at different reproductive stages affects the morphological and physiological processes of cowpea as a crop. This is an indication that water is very crucial during the growth and yield of cowpea.
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Claims 9
Claim · model-written summary
Cowpea variety significantly affected pod length.
- Taxon
- cowpea
Vigna unguiculatae1 - Material
- varietye0
- Outcome
- pod lengthe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variety was highly significant (p≤0.01) for pod length, total grain yield per pot and estimated grain yield per hectare”
e1“yield components of some cowpea varieties”
Claim · model-written summary
Cowpea variety significantly affected total grain yield per pot.
- Taxon
- cowpeaVigna unguiculatae1
- Material
- varietye0
- Outcome
- total grain yield per pote0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variety was highly significant (p≤0.01) for pod length, total grain yield per pot and estimated grain yield per hectare”
e1“yield components of some cowpea varieties”
Claim · model-written summary
Cowpea variety significantly affected estimated grain yield per hectare.
- Taxon
- cowpeaVigna unguiculatae1
- Material
- varietye0
- Outcome
- estimated grain yield per hectaree0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variety was highly significant (p≤0.01) for pod length, total grain yield per pot and estimated grain yield per hectare”
e1“yield components of some cowpea varieties”
Claim · model-written summary
Drought significantly affected pod weight per pot.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- droughte0
- Outcome
- pod weight per pote0
- Comparator
- well-watered treatmente2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought was significant (p≤0.05) for pod weight per pot”
e1“yield components of some cowpea varieties”
e2“a well-watered treatment to serve as control”
Claim · model-written summary
Variety did not significantly affect pods per plant, seeds per pod, or 100 seed weight.
- Taxon
- cowpeaVigna unguiculatae1
- Material
- Varietye0
- Outcome
- number of pods per plant, number of seeds per pod and 100 seed weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variety however was not significant for number of pods per plant, number of seeds per pod and 100 seed weight.”
e1“yield components of some cowpea varieties”
Claim · model-written summary
Drought significantly affected number of pods per plant, pod length, pod weight per pot.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- Droughte0
- Outcome
- number of pods per plant, pod length, pod weight per pote0
- Comparator
- well-watered treatmente2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought showed a highly significant effect (p≤0.01) on number of pods per plant, pod length, pod weight per pot, number of seeds per pod, 100 seed weight, total grain yield per pot and estimated grain yield per hectare.”
e1“yield components of some cowpea varieties”
e2“a well-watered treatment to serve as control”
Claim · model-written summary
Drought significantly affected number of seeds per pod, 100 seed weight.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- Droughte0
- Outcome
- number of seeds per pod, 100 seed weighte0
- Comparator
- well-watered treatmente2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought showed a highly significant effect (p≤0.01) on number of pods per plant, pod length, pod weight per pot, number of seeds per pod, 100 seed weight, total grain yield per pot and estimated grain yield per hectare.”
e1“yield components of some cowpea varieties”
e2“a well-watered treatment to serve as control”
Claim · model-written summary
Drought significantly affected total grain yield per pot and estimated grain yield per hectare.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- Droughte0
- Outcome
- total grain yield per pot and estimated grain yield per hectaree0
- Comparator
- well-watered treatmente2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought showed a highly significant effect (p≤0.01) on number of pods per plant, pod length, pod weight per pot, number of seeds per pod, 100 seed weight, total grain yield per pot and estimated grain yield per hectare.”
e1“yield components of some cowpea varieties”
e2“a well-watered treatment to serve as control”
Claim · model-written summary
Water stress at early seed filling significantly reduced grain yield per plot and per hectare.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- Water stress at early seed filling stagee0
- Outcome
- total grain yield per plot and total grain yield per hectaree0
- Direction
- reducede0
- Comparator
- well-watered treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress at early seed filling stage significantly reduced total grain yield per plot and total grain yield per hectare.”
e1“yield components of some cowpea varieties”
e2“a well-watered treatment to serve as control”
The same questions in other papers
drought · yield · Vigna unguiculata (cowpea)Results differ
38 papers in the same direction as this paper · 7 in the opposite direction
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