Abstract
Phosphorus (P) is an indispensable nutrient for plant growth and development. Deficiency of P adversely affects photosynthesis, biomass accumulation and yield potential in wheat. We evaluated 103 diverse bread wheat (Triticum aestivum L.) genotypes under low P (LP) and optimum P (OP) conditions in terms of photosynthetic traits, biomass, and yield. Results revealed that under LP, transpiration rate (E) significantly increased while net assimilation or photosynthetic rate (A), stomatal conductance (gs), instantaneous-water use efficiency (IWUE), biomass, yield, and harvest index (HI) decreased. The LP stress tolerant and sensitive genotypes were identified using principal component analysis (PCA) ranking values of genotypes based on the relative values of six most contributing traits. Further, hierarchical cluster analysis also validated the variability among the genotypes and grouped P stress-tolerant and sensitive genotypes into distinct clusters. The P stress-tolerant genotypes exhibited a relatively lesser reduction in photosynthetic rate, gs, yield, and HI as compared to P stress-sensitive genotypes in response to LP. Our results substantiate the genetic potential inherent in Indian bread wheat genotypes, which can be used as donors in breeding programs to develop P-efficient wheat varieties.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Low phosphorus increased transpiration rate.
- Taxon
- bread wheat
Triticum aestivumt0 - Treatment
- LPe0
- Outcome
- transpiration rate (E)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under LP, transpiration rate (E) significantly increased”
t0“bread wheat”
Claim · model-written summary
Low phosphorus decreased photosynthetic rate, stomatal conductance and water-use efficiency.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- low P (LP)e1
- Outcome
- photosynthetic rate (A), stomatal conductance (gs), instantaneous-water use efficiency (IWUE)e0
- Direction
- decreasede0
- Comparator
- optimum P (OP)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“net assimilation or photosynthetic rate (A), stomatal conductance (gs), instantaneous-water use efficiency (IWUE), biomass, yield, and harvest index (HI) decreased”
t0“bread wheat”
e1“low P (LP) and optimum P (OP) conditions”
Claim · model-written summary
Low phosphorus decreased biomass, yield and harvest index.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- low P (LP)e1
- Outcome
- biomass, yield, and harvest index (HI)e0
- Direction
- decreasede0
- Comparator
- optimum P (OP)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“biomass, yield, and harvest index (HI) decreased”
t0“bread wheat”
e1“low P (LP) and optimum P (OP) conditions”
Claim · model-written summary
PCA ranked genotypes as stress tolerant or sensitive using six traits.
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- stress tolerant and sensitive genotypese0
- Value
- six most contributing traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The LP stress tolerant and sensitive genotypes were identified using principal component analysis (PCA) ranking values of genotypes based on the relative values of six most contributing traits”
t0“bread wheat”
Claim · model-written summary
Cluster analysis separated phosphorus-tolerant and sensitive genotypes.
- Taxon
- bread wheatTriticum aestivumt0
- Outcome
- distinct clusterse0
- Comparator
- P stress-tolerant and sensitive genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hierarchical cluster analysis also validated the variability among the genotypes and grouped P stress-tolerant and sensitive genotypes into distinct clusters”
t0“bread wheat”
Claim · model-written summary
Tolerant genotypes had less reduction in photosynthetic rate and stomatal conductance under low phosphorus.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- P stress-tolerant genotypese0
- Treatment
- LPe0
- Outcome
- photosynthetic rate, gse0
- Direction
- lesser reductione0
- Comparator
- P stress-sensitive genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The P stress-tolerant genotypes exhibited a relatively lesser reduction in photosynthetic rate, gs, yield, and HI as compared to P stress-sensitive genotypes in response to LP”
t0“bread wheat”
Claim · model-written summary
Tolerant genotypes had less reduction in yield and harvest index under low phosphorus.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- P stress-tolerant genotypese0
- Treatment
- LPe0
- Outcome
- yield, and HIe0
- Direction
- lesser reductione0
- Comparator
- P stress-sensitive genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The P stress-tolerant genotypes exhibited a relatively lesser reduction in photosynthetic rate, gs, yield, and HI as compared to P stress-sensitive genotypes in response to LP”
t0“bread wheat”
Claim · model-written summary
The authors propose using tolerant genotypes as donors for phosphorus-efficient wheat breeding.
- Taxon
- bread wheatTriticum aestivume0
- Outcome
- used as donors in breeding programs to develop P-efficient wheat varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Indian bread wheat genotypes, which can be used as donors in breeding programs to develop P-efficient wheat varieties”
The same questions in other papers
phosphorus · physiology: photosynthesis · Triticum aestivum (wheat)Results differ
1 paper in the same direction as this paper · 23 in the opposite direction
- positive
- positive
- positive
21 papers more in this group
See all 25 papers →phosphorus · physiology: gas exchange · Triticum aestivum (wheat)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →phosphorus · yield · Triticum aestivum (wheat)Positive and negative results
47 papers in the same direction as this paper · 524 in the opposite direction
- positive
- positive
- positive
568 papers more in this group
See all 572 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.