Abstract
In recent years, drought has been a serious problem in Ethiopia and elsewhere which has adversely affected plant productivity. This study aimed to investigate the effects of water stress on growth, biomass and foliar characteristics in three cultivars (Brukitu, Tegegnech and Adi) of Pisum sativum. The control plant pots were uniformly irrigated at 3 day intervals to maintain 100% field capacity. Water-stress conditions were imposed by subjecting plants to a gradual decrease of soil water availability such as watering at 6 day intervals (slight-stress condition), 9 day intervals (mild-stress condition) and 12 day intervals (severe-stress condition). Results revealed significant differences among the cultivars, water-stress treatments and their interaction, indicating the cultivars variability and differential response to water stress. Water stress adversely affected growth, biomass production, leaf water status and other leaf characteristics such as pigment concentration (chlorophyll a, b and total chlorophyll), maximum quantum yield of photosystem II (PS II) (Fv/Fm), net photosynthetic rate, stomatal conductance and transpiration rate in all cultivars, as stress level was increased in comparison to control plants. The relatively less decline in the studied parameters of Tegegnech exhibited a reasonable tolerance ability of this cultivar, whereas Brukitu and Adi proved to be sensitive to water-deficit condition.
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Claims 6
Claim · model-written summary
Cultivars differed significantly in response to water stress.
- Taxon
- Pisum sativum
Lathyrus oleraceuse0 - Material
- Brukitu, Tegegnech and Adie0
- Treatment
- water-stress treatmentse1
- Outcome
- differential response to water stresse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three cultivars (Brukitu, Tegegnech and Adi) of Pisum sativum”
e1“Results revealed significant differences among the cultivars, water-stress treatments and their interaction, indicating the cultivars variability and differential response to water stress.”
Claim · model-written summary
Increasing water stress reduced pea growth and biomass versus controls.
- Taxon
- Pisum sativumLathyrus oleraceuse0
- Treatment
- Water stresse1
- Outcome
- growth, biomass productione1
- Direction
- adversely affectede1
- Comparator
- control plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pisum sativum”
e1“Water stress adversely affected growth, biomass production, leaf water status and other leaf characteristics such as pigment concentration (chlorophyll a, b and total chlorophyll), maximum quantum yield of photosystem II (PS II) (Fv/Fm), net photosynthetic rate, stomatal conductance and transpiration rate in all cultivars, as stress level was increased in comparison to control plants.”
Claim · model-written summary
Increasing water stress adversely affected leaf water status and chlorophyll pigments.
- Taxon
- Pisum sativumLathyrus oleraceuse0
- Treatment
- Water stresse1
- Outcome
- leaf water status and other leaf characteristics such as pigment concentration (chlorophyll a, b and total chlorophyll)e1
- Direction
- adversely affectede1
- Comparator
- control plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pisum sativum”
e1“Water stress adversely affected growth, biomass production, leaf water status and other leaf characteristics such as pigment concentration (chlorophyll a, b and total chlorophyll), maximum quantum yield of photosystem II (PS II) (Fv/Fm), net photosynthetic rate, stomatal conductance and transpiration rate in all cultivars, as stress level was increased in comparison to control plants.”
Claim · model-written summary
Increasing water stress adversely affected photosystem II yield, photosynthesis and gas exchange.
- Taxon
- Pisum sativumLathyrus oleraceuse0
- Treatment
- Water stresse1
- Outcome
- maximum quantum yield of photosystem II (PS II) (Fv/Fm), net photosynthetic rate, stomatal conductance and transpiration ratee1
- Direction
- adversely affectede1
- Comparator
- control plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pisum sativum”
e1“Water stress adversely affected growth, biomass production, leaf water status and other leaf characteristics such as pigment concentration (chlorophyll a, b and total chlorophyll), maximum quantum yield of photosystem II (PS II) (Fv/Fm), net photosynthetic rate, stomatal conductance and transpiration rate in all cultivars, as stress level was increased in comparison to control plants.”
Claim · model-written summary
Tegegnech declined less and showed reasonable water deficit tolerance.
- Taxon
- Pisum sativumLathyrus oleraceuse0
- Material
- Tegegneche1
- Outcome
- reasonable tolerance abilitye1
- Direction
- less declinee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pisum sativum”
e1“The relatively less decline in the studied parameters of Tegegnech exhibited a reasonable tolerance ability of this cultivar”
Claim · model-written summary
Brukitu and Adi were sensitive to water deficit.
- Taxon
- Pisum sativumLathyrus oleraceuse0
- Material
- Brukitu and Adie1
- Outcome
- sensitive to water-deficit conditione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pisum sativum”
e1“Brukitu and Adi proved to be sensitive to water-deficit condition”
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