Abstract
Abstract. Rosmaina, Ridho A, Zulfahmi. 2022. Response of morpho-physiological traits to drought stress and screening of curly pepper (Capsicum annuum) genotypes for drought tolerance. Biodiversitas 23: 5469-5480. Developing drought-tolerant genotypes are required to face drought condition that often occurs. The study aimed was to assess the growth, biomass, yield traits, and gas exchange of fifteen curly pepper (Capsicum annuum L.) genotypes under normal and drought-stress conditions and to determine the key traits as indicators for selecting and identifying the drought-tolerant curly pepper genotypes. Fifteen curly pepper genotypes were cultivated under normal and drought-stress conditions. Twenty-one morphological and physiological traits were recorded in the reproductive phase. The data obtained were subjected to analysis of variance, Principal Component Analysis (PCA), and UPGMA dendrogram cluster analysis. This study showed that drought stress conditions significantly reduced plant growth, biomass, yield characters, photosynthesis rate, stomatal conductance, transpiration rate, and mesophyll conductance compared to normal conditions. Based on PCA analysis, stomatal limitation, mesophyll and stomatal conductances, root length, photosynthesis rate, fruit weight per plant, chlorophyll b, number of fruit, and transpiration rate were established as indicators for screening drought tolerant genotypes. The UIN-70 and UIN-65 were highly drought-tolerant genotypes according to the MFVD index. UPGMA dendrogram displayed clustering of the curly pepper genotypes consistent with the genotype's cluster based on the MFVD index. This study's findings can be utilized to improve curly pepper's drought tolerance in the future.
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Claims 9
Claim · model-written summary
Drought significantly reduced plant growth, biomass and yield characters in curly pepper compared with normal conditions.
- Taxon
- curly pepper (Capsicum annuum L.)
Capsicum annuume1 - Treatment
- drought stress conditionse0
- Outcome
- plant growth, biomass, yield characterse0
- Direction
- reducede0
- Comparator
- normal conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress conditions significantly reduced plant growth, biomass, yield characters, photosynthesis rate, stomatal conductance, transpiration rate, and mesophyll conductance compared to normal conditions.”
e1“curly pepper (Capsicum annuum L.)”
Claim · model-written summary
Drought significantly reduced photosynthesis rate, stomatal conductance and transpiration rate.
- Taxon
- curly pepper (Capsicum annuum L.)Capsicum annuume1
- Treatment
- drought stress conditionse0
- Outcome
- photosynthesis rate, stomatal conductance, transpiration ratee0
- Direction
- reducede0
- Comparator
- normal conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress conditions significantly reduced plant growth, biomass, yield characters, photosynthesis rate, stomatal conductance, transpiration rate, and mesophyll conductance compared to normal conditions.”
e1“curly pepper (Capsicum annuum L.)”
Claim · model-written summary
Drought significantly reduced mesophyll conductance.
- Taxon
- curly pepper (Capsicum annuum L.)Capsicum annuume1
- Treatment
- drought stress conditionse0
- Outcome
- mesophyll conductancee0
- Direction
- reducede0
- Comparator
- normal conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress conditions significantly reduced plant growth, biomass, yield characters, photosynthesis rate, stomatal conductance, transpiration rate, and mesophyll conductance compared to normal conditions.”
e1“curly pepper (Capsicum annuum L.)”
Claim · model-written summary
PCA identified stomatal limitation, mesophyll conductance and stomatal conductance as screening indicators.
- Taxon
- curly pepper (Capsicum annuum L.)Capsicum annuume1
- Outcome
- indicators for screening drought tolerant genotypese0
- Value
- stomatal limitatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomatal limitation, mesophyll and stomatal conductances, root length, photosynthesis rate, fruit weight per plant, chlorophyll b, number of fruit, and transpiration rate were established as indicators for screening drought tolerant genotypes.”
e1“curly pepper (Capsicum annuum L.)”
Claim · model-written summary
PCA identified root length, photosynthesis rate and fruit weight per plant as screening indicators.
- Taxon
- curly pepper (Capsicum annuum L.)Capsicum annuume1
- Outcome
- indicators for screening drought tolerant genotypese0
- Value
- fruit weight per plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root length, photosynthesis rate, fruit weight per plant, chlorophyll b, number of fruit, and transpiration rate were established as indicators for screening drought tolerant genotypes.”
e1“curly pepper (Capsicum annuum L.)”
Claim · model-written summary
PCA identified chlorophyll b, fruit number and transpiration rate as screening indicators.
- Taxon
- curly pepper (Capsicum annuum L.)Capsicum annuume1
- Outcome
- indicators for screening drought tolerant genotypese0
- Value
- chlorophyll be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll b, number of fruit, and transpiration rate were established as indicators for screening drought tolerant genotypes.”
e1“curly pepper (Capsicum annuum L.)”
Claim · model-written summary
UIN-70 was highly drought tolerant according to the MFVD index.
- Taxon
- curly pepper (Capsicum annuum L.)Capsicum annuume1
- Material
- UIN-70e0
- Outcome
- highly drought-tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The UIN-70 and UIN-65 were highly drought-tolerant genotypes according to the MFVD index.”
e1“curly pepper (Capsicum annuum L.)”
Claim · model-written summary
UIN-65 was highly drought tolerant according to the MFVD index.
- Taxon
- curly pepper (Capsicum annuum L.)Capsicum annuume1
- Material
- UIN-65e0
- Outcome
- highly drought-tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The UIN-70 and UIN-65 were highly drought-tolerant genotypes according to the MFVD index.”
e1“curly pepper (Capsicum annuum L.)”
Claim · model-written summary
UPGMA clustering agreed with the genotype clustering based on the MFVD index.
Verbatim
e0“UPGMA dendrogram displayed clustering of the curly pepper genotypes consistent with the genotype's cluster based on the MFVD index.”
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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.