Abstract
Chili peppers (Capsicum annuum L.) are one of the most widely planted vegetables all over the world since it has several health advantages and add a delicious flavor to a range of recipes. Drought stress is accounted as the most abiotic environmental condition that can negatively impact the quality and production of many crops. In this context, a factorial randomized design study was conducted in open field pots to determine how irrigation deficit affects the plant's agronomic and physiological characteristics. Capsicum spp. was subjected to three drought stress conditions (once every day, once every two days, and once every three days representing light or low, moderate, and severe drought stress). At the same time, biostimulants Alga600, moringa leaf extract (MLE), and homemade fertilizer (H-made) were foliar sprayed to determine whether they might minimize abiotic stress or increase plant susceptibility to drought. The results demonstrate that severe drought stress resulted in a considerable drop in fruit quality and production, followed by moderate and light drought. Whereas, minimum chlorophyll and carotenoids are influenced by deficient irrigation. On the other hand, biostimulants could mitigate the detrimental impact of drought stress on yield, chlorophyll concentration, and other physical characteristics such as leaf area. Among the biostimulants, Alga600 had the greatest impact on increasing chili pepper stress tolerance, followed by 6% MLE and H-made biostimulants when compared to their controls (plants treated with deionized water only). However, the combination of biostimulants with drought stress was more obvious in drought roses. The interaction was less influenced by the drought, which intensified the physical and economic aspects. While some biostimulants, such as MLE and Alga600, may have a greater impact on plant production and pigment content as drought stress increases. The correlation coefficient also indicates that the measured parameters had both positive and negative correlations to each other. Physical parameters like leaf area, number of fruits, fruit diameter, and length have a significant positive correlation to the total yield while chlorophyll content can have a positive and negative correlation to the physical parameters.
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Claims 9
Claim · model-written summary
Severe drought reduced fruit quality and production more than moderate or light drought.
- Treatment
- severe drought stresse0
- Outcome
- fruit quality and productione0
- Direction
- drope0
- Comparator
- moderate and light droughte0
CapsicumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“severe drought stress resulted in a considerable drop in fruit quality and production, followed by moderate and light drought”
e1“Chili peppers (Capsicum annuum L.)”
Claim · model-written summary
Deficient irrigation produced minimum chlorophyll and carotenoid levels.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minimum chlorophyll and carotenoids are influenced by deficient irrigation”
e1“Chili peppers (Capsicum annuum L.)”
Claim · model-written summary
Biostimulants mitigated drought effects on pepper yield, chlorophyll concentration and leaf area.
- Treatment
- biostimulantse0
- Outcome
- yield, chlorophyll concentration, and other physical characteristics such as leaf areae0
- Direction
- mitigatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“biostimulants could mitigate the detrimental impact of drought stress on yield, chlorophyll concentration, and other physical characteristics such as leaf area”
e1“Chili peppers (Capsicum annuum L.)”
Claim · model-written summary
Alga600 gave the greatest improvement in pepper stress tolerance against water-only controls.
- Treatment
- Alga600e0
- Outcome
- stress tolerancee0
- Direction
- increasinge0
- Comparator
- plants treated with deionized water onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alga600 had the greatest impact on increasing chili pepper stress tolerance, followed by 6% MLE and H-made biostimulants when compared to their controls (plants treated with deionized water only)”
Claim · model-written summary
Six percent MLE ranked after Alga600 for increasing pepper stress tolerance.
- Treatment
- 6% MLEe0
- Outcome
- stress tolerancee0
- Direction
- increasinge0
- Comparator
- plants treated with deionized water onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alga600 had the greatest impact on increasing chili pepper stress tolerance, followed by 6% MLE and H-made biostimulants when compared to their controls (plants treated with deionized water only)”
Claim · model-written summary
Homemade fertilizer ranked after MLE for increasing pepper stress tolerance.
- Treatment
- H-made biostimulantse0
- Outcome
- stress tolerancee0
- Direction
- increasinge0
- Comparator
- plants treated with deionized water onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alga600 had the greatest impact on increasing chili pepper stress tolerance, followed by 6% MLE and H-made biostimulants when compared to their controls (plants treated with deionized water only)”
Claim · model-written summary
MLE and Alga600 may affect pepper production and pigment content more as drought intensifies.
- Taxon
- hot pepper (Capsicum annuum L.)
Capsicum annuumt0 - Treatment
- MLE and Alga600e0
- Outcome
- plant production and pigment contente0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MLE and Alga600, may have a greater impact on plant production and pigment content as drought stress increases”
t0“hot pepper (Capsicum annuum L.)”
Claim · model-written summary
Leaf area, fruit number, diameter and length correlated significantly and positively with total yield.
- Taxon
- hot pepper (Capsicum annuum L.)Capsicum annuumt0
- Organ / stage
- fruitse0
- Outcome
- total yielde0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf area, number of fruits, fruit diameter, and length have a significant positive correlation to the total yield”
t0“hot pepper (Capsicum annuum L.)”
Claim · model-written summary
Chlorophyll content showed positive and negative correlations with physical pepper parameters.
- Taxon
- hot pepper (Capsicum annuum L.)Capsicum annuumt0
- Compound
- chlorophylle0
- Outcome
- physical parameterse0
- Direction
- positive and negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content can have a positive and negative correlation to the physical parameters”
t0“hot pepper (Capsicum annuum L.)”
The same questions in other papers
irrigation · physiology: pigments · Capsicum (peppers)Positive and negative results
2 in the opposite direction
- positive
- positive
other · physiology: pigments · Capsicum (peppers)Results agree
6 papers in the same direction as this paper
- positive
- positive
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3 papers more in this group
See all 7 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.