Abstract
Abstract Drought is a significant abiotic stressor that reduces peanut production because it alters photosynthetic activity and impacts crop growth. Therefore, developing drought-tolerant peanut genotypes capable of maintaining higher photosynthetic rates ( A ) under stress is crucial. This study assessed changes in photosynthetic and chlorophyll fluorescence responses to light (photosynthetic photon flux density, PPFD) in newly bred drought-tolerant peanut genotypes. Ten genotypes [NM-3, NM-5, NM-6, NM-23, NM-69, NM-70, NM-74, NM-77, V-C, and C-76–16] were evaluated under full irrigation (FC 100 ) and deficit irrigation (FC 50 ) in a split-plot design with four replications in a greenhouse. Under high PPFD levels, genotype NM-5 with deficit irrigation exhibited significantly higher A , stomatal conductance ( gs ), quantum efficiency of photosystem II (ΦPSII), and electron transport rate (ETR) by 40–59%, 135–525%, 31–212%, and 31–102%, respectively, than check varieties (V-C and C-76–16) and other genotypes. The NM-74 and NM-77 genotypes also performed well under deficit irrigations but with slightly lower A , gs , ΦPSII, and ETR. Genotypes NM-5, NM-23, NM-74, and NM-77 exhibited significantly higher quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP) with higher light intensities in the daily cycle under deficit irrigation. The decline in ETR at the same PPFD levels in NM-3, NM 69, NM-70, and C-76–16 indicated photoinhibition or saturation of the photosynthetic apparatus compared to other genotypes. Concurrently, FC 100 irrigation level minimizes photoinhibition, enhancing A , gs , ΦPSII, and ETR in the genotypes than FC 50 . Therefore, we conclude that NM-5, NM-74, and NM-77 genotypes can perform better under water deficit environments. As such, chlorophyll fluorescence parameters Fv’/Fm’ and qP can be considered for selective breeding to enhance photosynthetic efficiencies.
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Claims 17
Claim · model-written summary
NM-5 under deficit irrigation had 40–59% higher photosynthetic rate under high PPFD than checks and other genotypes.
- Taxon
- peanut
Arachis hypogaeat0 - Material
- NM-5e0
- Treatment
- deficit irrigatione0
- Outcome
- Ae0
- Direction
- highere0
- Value
- 40–59%e0
- Qualifier
- high PPFD levelse0
- Comparator
- check varieties (V-C and C-76–16) and other genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under high PPFD levels, genotype NM-5 with deficit irrigation exhibited significantly higher A , stomatal conductance ( gs ), quantum efficiency of photosystem II (ΦPSII), and electron transport rate (ETR) by 40–59%, 135–525%, 31–212%, and 31–102%, respectively, than check varieties (V-C and C-76–16) and other genotypes.”
e1“photosynthetic rates ( A )”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-5 under deficit irrigation had 135–525% higher stomatal conductance under high PPFD.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-5e0
- Treatment
- deficit irrigatione0
- Outcome
- stomatal conductance ( gs )e0
- Direction
- highere0
- Value
- 135–525%e0
- Comparator
- check varieties (V-C and C-76–16) and other genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under high PPFD levels, genotype NM-5 with deficit irrigation exhibited significantly higher A , stomatal conductance ( gs ), quantum efficiency of photosystem II (ΦPSII), and electron transport rate (ETR) by 40–59%, 135–525%, 31–212%, and 31–102%, respectively, than check varieties (V-C and C-76–16) and other genotypes.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-5 under deficit irrigation had 31–212% higher PSII quantum efficiency under high PPFD.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-5e0
- Treatment
- deficit irrigatione0
- Outcome
- quantum efficiency of photosystem II (ΦPSII)e0
- Direction
- highere0
- Value
- 31–212%e0
- Comparator
- check varieties (V-C and C-76–16) and other genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under high PPFD levels, genotype NM-5 with deficit irrigation exhibited significantly higher A , stomatal conductance ( gs ), quantum efficiency of photosystem II (ΦPSII), and electron transport rate (ETR) by 40–59%, 135–525%, 31–212%, and 31–102%, respectively, than check varieties (V-C and C-76–16) and other genotypes.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-5 under deficit irrigation had 31–102% higher electron transport rate under high PPFD.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-5e0
- Treatment
- deficit irrigatione0
- Outcome
- electron transport rate (ETR)e0
- Direction
- highere0
- Value
- 31–102%e0
- Comparator
- check varieties (V-C and C-76–16) and other genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under high PPFD levels, genotype NM-5 with deficit irrigation exhibited significantly higher A , stomatal conductance ( gs ), quantum efficiency of photosystem II (ΦPSII), and electron transport rate (ETR) by 40–59%, 135–525%, 31–212%, and 31–102%, respectively, than check varieties (V-C and C-76–16) and other genotypes.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-74 performed well under deficit irrigation, though below NM-5 on the reported photosynthetic measures.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-74e0
- Treatment
- deficit irrigationse0
- Outcome
- slightly lower A , gs , ΦPSII, and ETRe0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NM-74 and NM-77 genotypes also performed well under deficit irrigations but with slightly lower A , gs , ΦPSII, and ETR.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-77 performed well under deficit irrigation, though below NM-5 on the reported photosynthetic measures.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-77e0
- Treatment
- deficit irrigationse0
- Outcome
- slightly lower A , gs , ΦPSII, and ETRe0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NM-74 and NM-77 genotypes also performed well under deficit irrigations but with slightly lower A , gs , ΦPSII, and ETR.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-5 showed significantly higher Fv’/Fm’ and qP at higher light intensity under deficit irrigation.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-5e0
- Treatment
- deficit irrigatione0
- Outcome
- quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP)e0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypes NM-5, NM-23, NM-74, and NM-77 exhibited significantly higher quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP) with higher light intensities in the daily cycle under deficit irrigation.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-23 showed significantly higher Fv’/Fm’ and qP at higher light intensity under deficit irrigation.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-23e0
- Treatment
- deficit irrigatione0
- Outcome
- quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP)e0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypes NM-5, NM-23, NM-74, and NM-77 exhibited significantly higher quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP) with higher light intensities in the daily cycle under deficit irrigation.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-74 showed significantly higher Fv’/Fm’ and qP at higher light intensity under deficit irrigation.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-74e0
- Treatment
- deficit irrigatione0
- Outcome
- quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP)e0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypes NM-5, NM-23, NM-74, and NM-77 exhibited significantly higher quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP) with higher light intensities in the daily cycle under deficit irrigation.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-77 showed significantly higher Fv’/Fm’ and qP at higher light intensity under deficit irrigation.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-77e0
- Treatment
- deficit irrigatione0
- Outcome
- quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP)e0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypes NM-5, NM-23, NM-74, and NM-77 exhibited significantly higher quantum efficiency of photosystem II (Fv’/Fm’) and photochemical quenching (qP) with higher light intensities in the daily cycle under deficit irrigation.”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
ETR declined in NM-3 at the same PPFD levels, suggesting photoinhibition or saturation.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-3e0
- Outcome
- ETRe0
- Direction
- declinee0
- Qualifier
- photoinhibition or saturation of the photosynthetic apparatuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decline in ETR at the same PPFD levels in NM-3, NM 69, NM-70, and C-76–16 indicated photoinhibition or saturation of the photosynthetic apparatus compared to other genotypes”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
ETR declined in NM 69 at the same PPFD levels, suggesting photoinhibition or saturation.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM 69e0
- Outcome
- ETRe0
- Direction
- declinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decline in ETR at the same PPFD levels in NM-3, NM 69, NM-70, and C-76–16 indicated photoinhibition or saturation of the photosynthetic apparatus compared to other genotypes”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
ETR declined in NM-70 at the same PPFD levels, suggesting photoinhibition or saturation.
- Taxon
- peanutArachis hypogaeat0
- Material
- NM-70e0
- Outcome
- ETRe0
- Direction
- declinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decline in ETR at the same PPFD levels in NM-3, NM 69, NM-70, and C-76–16 indicated photoinhibition or saturation of the photosynthetic apparatus compared to other genotypes”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
ETR declined in C-76–16 at the same PPFD levels, suggesting photoinhibition or saturation.
- Taxon
- peanutArachis hypogaeat0
- Material
- C-76–16e0
- Outcome
- ETRe0
- Direction
- declinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decline in ETR at the same PPFD levels in NM-3, NM 69, NM-70, and C-76–16 indicated photoinhibition or saturation of the photosynthetic apparatus compared to other genotypes”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
Full irrigation minimized photoinhibition and enhanced A, gs, ΦPSII, and ETR compared with deficit irrigation.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- FC 100 irrigation levele0
- Outcome
- photoinhibitione0
- Direction
- minimizese0
- Comparator
- FC 50e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FC 100 irrigation level minimizes photoinhibition, enhancing A , gs , ΦPSII, and ETR in the genotypes than FC 50”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
NM-5, NM-74 and NM-77 were judged better performers under water deficit.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- perform better under water deficit environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NM-5, NM-74, and NM-77 genotypes can perform better under water deficit environments”
t0“peanut (Arachis hypogaea L)”
Claim · model-written summary
The authors propose Fv’/Fm’ and qP for selection to improve photosynthetic efficiency.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- selective breeding to enhance photosynthetic efficienciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll fluorescence parameters Fv’/Fm’ and qP can be considered for selective breeding to enhance photosynthetic efficiencies”
t0“peanut (Arachis hypogaea L)”
The same questions in other papers
irrigation · physiology: photosynthesis · Arachis hypogaea (peanut)Positive and negative results
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See all 9 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.