Abstract
An experiment was designed in Coimbatore, Tamil Nadu during two successive summer seasons, 2021 and 2022, to investigate the effects of high night temperature (HNT) (ambient+3oC) and CO2 (600ppm) on the yield and seed quality parameters of green gram under ten treatments in SPAR (Soil Plant Atmospheric Research) and ambient conditions. The objective of this research was to i) quantify the short-term effects of HNT and CO2 on yield contribution factors and (ii) quantify seed quality parameters employing biochemical analysis. Green gram yield and quality parameters were significantly reduced under HNT and CO2 when compared to ambient condition. Pooled data from two successive summer seasons revealed that when stress was imposed from (i) 43 to 49 DAS (Day After Sowing), the number of flowers dropped per plant significantly increased by 41.3% (ii) 29 to 35 DAS, pod setting percentage decreased by 18.5% (iii) 36 to 42 DAS, grain yield and biomass/plant decreased by 26.9 % and 29.3%respectively. In aspects of seed quality parameters, data revealed that under stress (i) Seed protein decreased by 20.5% from 50 to 56 DAS. (ii) Total sugars, polyphenols, calcium and iron decreased by 17.7, 19.9, 19.9 and 37.3%, respectively from 43 to 49 DAS. (iii) Seed moisture was reduced by 19.7% during 57 to 63 DAS. (iv) The levels of proline and phytic acid increased by 64.3 and 33.8%, respectively, from 50 to 56 DAS and 43 to 49 DAS. Overall, green gram yield was adversely affected on three treatments from 35 to 56 DAS (flower initiation stage to pod filling stage) and seed quality parameters such as protein, total sugars, polyphenols, seed moisture, proline, phytic acid, calcium and iron were reduced under HNT and CO2 from 50% flowering to pod development stage (42 to 56 DAS).
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Claims 12
Claim · model-written summary
Stress at 43 to 49 DAS increased flowers dropped per plant by 41.3%.
- Taxon
- green gram
.jpg?width=60)
Vigna radiata var. radiatat0 - Treatment
- high night temperature and CO2t0
- Outcome
- number of flowers dropped per plante0
- Direction
- increasede0
- Value
- 41.3%e0
- Qualifier
- 43 to 49 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“43 to 49 DAS (Day After Sowing), the number of flowers dropped per plant significantly increased by 41.3%”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress at 29 to 35 DAS decreased pod setting by 18.5%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- pod setting percentagee0
- Direction
- decreasede0
- Value
- 18.5%e0
- Qualifier
- 29 to 35 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“29 to 35 DAS, pod setting percentage decreased by 18.5%”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress at 36 to 42 DAS decreased grain yield by 26.9%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- grain yielde0
- Direction
- decreasede0
- Value
- 26.9 %e0
- Qualifier
- 36 to 42 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“36 to 42 DAS, grain yield and biomass/plant decreased by 26.9 % and 29.3%respectively”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress at 36 to 42 DAS decreased biomass per plant by 29.3%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- biomass/plante0
- Direction
- decreasede0
- Value
- 29.3%e0
- Qualifier
- 36 to 42 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“36 to 42 DAS, grain yield and biomass/plant decreased by 26.9 % and 29.3%respectively”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress at 50 to 56 DAS decreased seed protein by 20.5%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- Seed proteine0
- Direction
- decreasede0
- Value
- 20.5%e0
- Qualifier
- 50 to 56 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed protein decreased by 20.5% from 50 to 56 DAS.”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress decreased total sugars by 17.7%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- Total sugarse0
- Direction
- decreasede0
- Value
- 17.7e0
- Qualifier
- 43 to 49 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total sugars, polyphenols, calcium and iron decreased by 17.7, 19.9, 19.9 and 37.3%, respectively from 43 to 49 DAS.”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress decreased polyphenols by 19.9%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- polyphenolse0
- Direction
- decreasede0
- Value
- 19.9e0
- Qualifier
- 43 to 49 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total sugars, polyphenols, calcium and iron decreased by 17.7, 19.9, 19.9 and 37.3%, respectively from 43 to 49 DAS.”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress decreased calcium by 19.9%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- calciume0
- Direction
- decreasede0
- Value
- 19.9e0
- Qualifier
- 43 to 49 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total sugars, polyphenols, calcium and iron decreased by 17.7, 19.9, 19.9 and 37.3%, respectively from 43 to 49 DAS.”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress decreased iron by 37.3%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- irone0
- Direction
- decreasede0
- Value
- 37.3%e0
- Qualifier
- 43 to 49 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total sugars, polyphenols, calcium and iron decreased by 17.7, 19.9, 19.9 and 37.3%, respectively from 43 to 49 DAS.”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress at 57 to 63 DAS reduced seed moisture by 19.7%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- Seed moisturee0
- Direction
- reducede0
- Value
- 19.7%e0
- Qualifier
- 57 to 63 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed moisture was reduced by 19.7% during 57 to 63 DAS.”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress increased proline by 64.3%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- prolinee0
- Direction
- increasede0
- Value
- 64.3e0
- Qualifier
- 50 to 56 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The levels of proline and phytic acid increased by 64.3 and 33.8%, respectively, from 50 to 56 DAS and 43 to 49 DAS.”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
Claim · model-written summary
Stress increased phytic acid by 33.8%.
- Taxon
- green gramVigna radiata var. radiatat0
- Treatment
- high night temperature and CO2t0
- Outcome
- phytic acide0
- Direction
- increasede0
- Value
- 33.8%e0
- Qualifier
- 43 to 49 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The levels of proline and phytic acid increased by 64.3 and 33.8%, respectively, from 50 to 56 DAS and 43 to 49 DAS.”
t0“high night temperature and CO2 on yield and seed quality of summer green gram”
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