Abstract
The results of the study of the adaptation potential of perennial fruit crops depending on climatic changes are presented. The physiological state of some pear varieties during summer periods in 2021, 2022 in the fruit plantations of the Krasnodar Territory were evaluated. Two Russian varieties (Flamenko, Luberskaya) and two European varieties (Conference, Williams) were studied. An experiment on artificially drying freshly harvested pear leaves at constant room temperature was conducted to amplify the negative effects of summer stressors. The relative water content of leaves and electrolyte leakage were determined before and after the stress according to generally accepted methods. It was found that relative humidity is an important factor for normal leaf development, and the change in its values in the summer months correlated with the variability of values of the stress parameter of pear leaves - electrolyte leakage. It was found that the widespread European variety Conference was the most susceptible to the effects of artificial stress. After a short drying period, this variety was characterized by a sharp increase in the electrolyte leakage to ~36 % on the background of a significant decrease in the relative water content in the leaves (71–73 %), due to the development of oxidative processes, leading to a violation of the integrity of cell membranes. Russian varieties Flamenko and Luberskaya, as well as the European variety Williams, on the contrary, by the studied physiological parameters had no strong differences (the change of physiological parameters was from 1.1 to 1.3 times), which allowed them to be identified as more resistant varieties to this type of stress exposure.
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Claims 6
Claim · model-written summary
Relative humidity change in summer months correlated with variability in electrolyte leakage of pear leaves
- Taxon
- pear
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communise0 - Outcome
- electrolyte leakagee0
- Qualifier
- relative humiditye0
- Setting
- summer monthse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“It was found that relative humidity is an important factor for normal leaf development, and the change in its values in the summer months correlated with the variability of values of the stress parameter of pear leaves - electrolyte leakage”
Claim · model-written summary
Conference pear leaves showed a sharp increase in electrolyte leakage to about 36% after a short drying period
- Taxon
- pearPyrus communise4
- Material
- Conferencee1
- Treatment
- artificially drying freshly harvested pear leavese4
- Outcome
- electrolyte leakagee2
- Direction
- sharp increasee2
- Value
- ~36 %e2
- Qualifier
- After a short drying periode2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It was found that the widespread European variety Conference was the most susceptible to the effects of artificial stress”
e2“After a short drying period, this variety was characterized by a sharp increase in the electrolyte leakage to ~36 % on the background of a significant decrease in the relative water content in the leaves (71–73 %), due to the development of oxidative processes, leading to a violation of the integrity of cell membranes”
e4“An experiment on artificially drying freshly harvested pear leaves at constant room temperature was conducted to amplify the negative effects of summer stressors”
Claim · model-written summary
Conference pear leaves showed a significant decrease in relative water content to 71–73% after a short drying period
- Taxon
- pearPyrus communise4
- Material
- Conferencee1
- Treatment
- artificially drying freshly harvested pear leavese4
- Outcome
- relative water content in the leavese2
- Direction
- decreasee2
- Value
- 71–73 %e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It was found that the widespread European variety Conference was the most susceptible to the effects of artificial stress”
e2“After a short drying period, this variety was characterized by a sharp increase in the electrolyte leakage to ~36 % on the background of a significant decrease in the relative water content in the leaves (71–73 %), due to the development of oxidative processes, leading to a violation of the integrity of cell membranes”
e4“An experiment on artificially drying freshly harvested pear leaves at constant room temperature was conducted to amplify the negative effects of summer stressors”
Claim · model-written summary
Oxidative processes are attributed to violation of cell membrane integrity in drying-stressed Conference pear leaves
- Taxon
- pearPyrus communise4
- Outcome
- violation of the integrity of cell membranese2
- Qualifier
- development of oxidative processese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“After a short drying period, this variety was characterized by a sharp increase in the electrolyte leakage to ~36 % on the background of a significant decrease in the relative water content in the leaves (71–73 %), due to the development of oxidative processes, leading to a violation of the integrity of cell membranes”
e4“An experiment on artificially drying freshly harvested pear leaves at constant room temperature was conducted to amplify the negative effects of summer stressors”
Claim · model-written summary
Conference was the most susceptible pear variety to artificial stress
- Taxon
- pearPyrus communise4
- Material
- Conferencee1
- Treatment
- artificial stresse1
- Outcome
- susceptiblee1
- Direction
- most susceptiblee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It was found that the widespread European variety Conference was the most susceptible to the effects of artificial stress”
e4“An experiment on artificially drying freshly harvested pear leaves at constant room temperature was conducted to amplify the negative effects of summer stressors”
Claim · model-written summary
Flamenko, Luberskaya and Williams pear varieties showed no strong differences in physiological parameters (1.1 to 1.3 times) and were identified as more resistant than Conference
- Taxon
- pearPyrus communise4
- Material
- Flamenko and Luberskayae3
- Treatment
- artificial stresse1
- Outcome
- physiological parameterse3
- Direction
- had no strong differencese3
- Value
- from 1.1 to 1.3 timese3
- Qualifier
- as well as the European variety Williamse3
- Comparator
- Conferencee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It was found that the widespread European variety Conference was the most susceptible to the effects of artificial stress”
e3“Russian varieties Flamenko and Luberskaya, as well as the European variety Williams, on the contrary, by the studied physiological parameters had no strong differences (the change of physiological parameters was from 1.1 to 1.3 times)”
e4“An experiment on artificially drying freshly harvested pear leaves at constant room temperature was conducted to amplify the negative effects of summer stressors”
The same questions in other papers
processing · physiology: water · Pyrus communis (pear)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
processing · physiology: oxidative · Pyrus communis (pear)Results agree
1 paper in the same direction as this paper
- negative
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.