Abstract
Agricultural technologies aimed at increasing yields require the development of highly productive and stress-tolerant cultivars. Phenotyping can significantly accelerate breeding; however, no reliable markers have been identified to select the most promising cultivars at an early stage. In this work, we determined the light-induced dynamic of chlorophyll fluorescence (ChlF) parameters in young seedlings of 10 wheat (Triticum aestivum L.) cultivars and evaluated potency of these parameters as predictors of biomass accumulation and stress tolerance. Dry matter accumulation positively correlated with the effective quantum efficiency of photosystem II (Φ PSIIef ) and negatively correlated with the half-time of Φ PSIIef reaching (t 1/2 (Φ PSIIef )). There was a highly significant correlation between t 1/2 (Φ PSIIef ) and dry matter accumulation with increasing prediction period. Short-term heating and drought caused an inhibition of biomass accumulation and photosynthetic activity depending on the stressor intensity. The positive correlation between the Φ PSII dark level (Φ PSIId ) in young seedlings and tolerance to a rapidly increasing short-term stressor (heating) was shown. In the case of a long-term stressor (drought), we revealed a strong negative relationship between tolerance and the level of non-photochemical fluorescence quenching (NPQ). In general, the results show the potency of the ChlF parameters of young seedlings as predictors of biomass accumulation and stress tolerance.
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Claims 8
Claim · model-written summary
Dry matter accumulation correlated positively with effective PSII quantum efficiency.
- Taxon
- wheat
Triticum aestivumt0 - Organ / stage
- young seedlingse1
- Outcome
- Dry matter accumulatione0
- Direction
- positively correlatede0
- Qualifier
- effective quantum efficiency of photosystem IIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter accumulation positively correlated with the effective quantum efficiency of photosystem II (Φ PSIIef )”
e1“young seedlings of 10 wheat (Triticum aestivum L.) cultivars”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Dry matter accumulation correlated negatively with the half-time for PSII efficiency to be reached.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- young seedlingse2
- Outcome
- Dry matter accumulatione1
- Direction
- negatively correlatede0
- Qualifier
- half-time of Φ PSIIef reachinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negatively correlated with the half-time of Φ PSIIef reaching (t 1/2 (Φ PSIIef ))”
e1“Dry matter accumulation positively correlated”
e2“young seedlings of 10 wheat (Triticum aestivum L.) cultivars”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
The half-time and dry matter association became highly significant with longer prediction period.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- young seedlingse1
- Outcome
- dry matter accumulatione0
- Qualifier
- increasing prediction periode0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a highly significant correlation between t 1/2 (Φ PSIIef ) and dry matter accumulation with increasing prediction period.”
e1“young seedlings of 10 wheat (Triticum aestivum L.) cultivars”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Short-term heating inhibited biomass accumulation and photosynthetic activity, depending on intensity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Short-term heatinge0
- Outcome
- biomass accumulation and photosynthetic activitye0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Short-term heating and drought caused an inhibition of biomass accumulation and photosynthetic activity depending on the stressor intensity.”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Drought inhibited biomass accumulation and photosynthetic activity, depending on intensity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- droughte0
- Outcome
- biomass accumulation and photosynthetic activitye0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Short-term heating and drought caused an inhibition of biomass accumulation and photosynthetic activity depending on the stressor intensity.”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Seedling dark-level PSII efficiency correlated positively with rapid heating tolerance.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- young seedlingse0
- Outcome
- tolerance to a rapidly increasing short-term stressor (heating)e0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The positive correlation between the Φ PSII dark level (Φ PSIId ) in young seedlings and tolerance to a rapidly increasing short-term stressor (heating) was shown.”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Seedling NPQ level correlated negatively with drought tolerance.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- droughte0
- Outcome
- tolerancee0
- Direction
- negative relationshipe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the case of a long-term stressor (drought), we revealed a strong negative relationship between tolerance and the level of non-photochemical fluorescence quenching (NPQ).”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Authors conclude seedling chlorophyll fluorescence parameters can predict biomass accumulation and stress tolerance.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- young seedlingse0
- Outcome
- predictors of biomass accumulation and stress tolerancee0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the results show the potency of the ChlF parameters of young seedlings as predictors of biomass accumulation and stress tolerance.”
t0“wheat (Triticum aestivum)”
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