Abstract
Abstract Background Climate change is increasingly impacting agriculture all over the world, with extended periods of drought, flooding, hail, winds and temperature extremes. To negate the effects of climate change, researchers are trying to find new agricultural production techniques, to save resources without losing yield quality and quantity. A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies, grown under field capacity, deficit irrigation (50% field capacity) and full and half dose of mineral fertilizer in peat soil substrate was conducted. Both cultivars were marked with the stable isotope 15 N, to follow nitrogen translocation in chili plants under stress conditions. Results The yield and plant biomass, capsaicin synthase (CS), phenylalanine ammonia lyase (PAL), and peroxidase (POX), as well as total and individual capsaicinoids were studied. In 'Chili-AS Rot' the deficit irrigation with the full-fertilization (Diff) dose showed the highest yield and fruit number, compared to other treatments. In the 'Naga Morich' cultivar the deficit irrigation and half-fertilization (Dihf), showed the highest yield, fruit number and dry weight of chilies, compared to other treatments. In the cultivar 'Chili-AS Rot', deficit irrigation was found to reduce the utilization of N fertilizer when the plant (leaves, stems, and roots) and fruit were considered. The utilization of nitrogen fertilizer was 60 to 70% under deficit fertilization, regardless of the irrigation treatment. The half dose fertilized plants of 'Chili-AS Rot' had higher CS activity and PAL activity (from 50 to 80%) than fully fertilized plants, with deficit irrigation having about 10% higher enzymatic activity than field-capacity irrigated plants. In 'Naga Morich', irrigation treatment affected lower enzymatic activity than field-capacity irrigated plants. Conclusions The results indicate that deficit irrigation and fertilization can be used to maintain enzymatic activity and thus capsaicinoid content, which could reduce the economic cost of irrigation water and fertilizer. It was confirmed that the yield was better under deficit irrigation and fertilization for the more pungent 'Naga Morich'. The result of the study shows that when water and fertilizer use is reduced by up to 50%, chili yield losses are minimal or non-existent. Graphical Abstract
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Claims 10
Claim · model-written summary
In Chili-AS Rot, deficit irrigation with full fertilization gave the highest yield and fruit number.
- Taxon
- Capsicum annuum L.
Capsicum annuume0 - Material
- Chili-AS Rote1
- Treatment
- deficit irrigation with the full-fertilization (Diff) dosee1
- Outcome
- yield and fruit numbere1
- Direction
- higheste1
- Comparator
- other treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“In 'Chili-AS Rot' the deficit irrigation with the full-fertilization (Diff) dose showed the highest yield and fruit number, compared to other treatments”
Claim · model-written summary
In Naga Morich, deficit irrigation with half fertilization gave the highest yield, fruit number and dry weight.
- Taxon
- Capsicum chinense Jacq.
.jpg?width=60)
Capsicum chinensee0 - Material
- Naga Moriche1
- Treatment
- deficit irrigation and half-fertilization (Dihf)e1
- Outcome
- yield, fruit number and dry weight of chiliese1
- Direction
- higheste1
- Comparator
- other treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“In the 'Naga Morich' cultivar the deficit irrigation and half-fertilization (Dihf), showed the highest yield, fruit number and dry weight of chilies, compared to other treatments”
Claim · model-written summary
Deficit irrigation reduced utilization of N fertilizer in Chili-AS Rot when plant and fruit were considered.
- Taxon
- Capsicum annuum L.Capsicum annuume0
- Material
- Chili-AS Rote1
- Treatment
- deficit irrigatione1
- Outcome
- utilization of N fertilizere1
- Direction
- reducee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“In the cultivar 'Chili-AS Rot', deficit irrigation was found to reduce the utilization of N fertilizer when the plant (leaves, stems, and roots) and fruit were considered”
Claim · model-written summary
Nitrogen fertilizer utilization was 60 to 70% under deficit fertilization, regardless of irrigation treatment.
- Taxon
- Capsicum annuum L.Capsicum annuume0
- Treatment
- deficit fertilizatione1
- Outcome
- utilization of nitrogen fertilizere1
- Value
- 60 to 70%e1
- Qualifier
- regardless of the irrigation treatmente1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“The utilization of nitrogen fertilizer was 60 to 70% under deficit fertilization, regardless of the irrigation treatment”
Claim · model-written summary
Half-dose fertilized Chili-AS Rot had higher CS and PAL activity, by 50 to 80%, than fully fertilized plants.
- Taxon
- Capsicum annuum L.Capsicum annuume0
- Material
- Chili-AS Rote1
- Treatment
- half dose fertilized plantse1
- Gene
- CSe1
- Outcome
- CS activity and PAL activitye1
- Direction
- highere1
- Value
- from 50 to 80%e1
- Comparator
- fully fertilized plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“The half dose fertilized plants of 'Chili-AS Rot' had higher CS activity and PAL activity (from 50 to 80%) than fully fertilized plants”
Claim · model-written summary
Deficit irrigation gave about 10% higher enzymatic activity than field-capacity irrigation in Chili-AS Rot.
- Taxon
- Capsicum annuum L.Capsicum annuume0
- Treatment
- deficit irrigatione1
- Outcome
- enzymatic activitye1
- Direction
- highere1
- Value
- about 10%e1
- Comparator
- field-capacity irrigated plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“deficit irrigation having about 10% higher enzymatic activity than field-capacity irrigated plants”
Claim · model-written summary
Irrigation treatment gave lower enzymatic activity than field-capacity irrigation in Naga Morich.
- Taxon
- Capsicum chinense Jacq.Capsicum chinensee0
- Material
- Naga Moriche1
- Treatment
- irrigation treatmente1
- Outcome
- enzymatic activitye1
- Direction
- lowere1
- Comparator
- field-capacity irrigated plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“In 'Naga Morich', irrigation treatment affected lower enzymatic activity than field-capacity irrigated plants”
Claim · model-written summary
Yield of Naga Morich was better under deficit irrigation and fertilization.
- Taxon
- Capsicum chinense Jacq.Capsicum chinensee0
- Material
- Naga Moriche1
- Treatment
- deficit irrigation and fertilizatione1
- Outcome
- yielde1
- Direction
- bettere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“It was confirmed that the yield was better under deficit irrigation and fertilization for the more pungent 'Naga Morich'”
Claim · model-written summary
Chili yield losses are minimal or non-existent when water and fertilizer use is reduced by up to 50%.
- Taxon
- Capsicum annuum L.Capsicum annuume0
- Treatment
- reduced by up to 50%e1
- Outcome
- chili yield lossese1
- Direction
- minimal or non-existente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“The result of the study shows that when water and fertilizer use is reduced by up to 50%, chili yield losses are minimal or non-existent”
Claim · model-written summary
Deficit irrigation and fertilization can be used to maintain enzymatic activity and capsaicinoid content.
- Taxon
- Capsicum annuum L.Capsicum annuume0
- Outcome
- maintain enzymatic activity and thus capsaicinoid contente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A study on Capsicum annuum L . 'Chili-AS Rot' and Capsicum chinense Jacq. 'Naga Morich' chilies”
e1“deficit irrigation and fertilization can be used to maintain enzymatic activity and thus capsaicinoid content”
The same questions in other papers
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2 papers in the same direction as this paper
- positive
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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.