Abstract
High temperature and drought are the main factors restricting the increase in Camellia oleifera Abel production that can seriously harm its physiological and biochemical functions. This study aimed to explore the effect by which Ca2+ enhances the drought resistance of C. oleifera. Four-year-old potted plants of the ‘Xianglin 210’ variety were treated with four levels of CaCl2 solution (0, 10, 20, and 40 mmol/L) and subjected to natural drought stress. The drought levels were categorized as CS (non-drought), LD (light drought), MD (moderate drought), and SD (severe drought). The effects of drought stress on the growth and physiological-biochemical characteristics of C. oleifera were measured. Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits. Spraying 10 mmol/L CaCl2 effectively alleviates the damage of drought stress to tung oil trees. The study provides references for alleviating drought stress and increasing economic benefits in C. oleifera production.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 10
Claim · model-written summary
Foliar CaCl2 increased net photosynthetic rate (Pn) in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera Abel
Camellia oleiferat0 - Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- net photosynthetic rate (Pn)e0
- Direction
- increasee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Foliar CaCl2 increased transpiration rate (Tr) in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- transpiration rate (Tr)e0
- Direction
- increasee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Foliar CaCl2 increased stomatal conductance (Gs) in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- stomatal conductance (Gs)e0
- Direction
- increasee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Foliar CaCl2 increased indoleacetic acid (IAA) content in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- indoleacetic acid (IAA) contente0
- Direction
- increasee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Foliar CaCl2 increased abscisic acid (ABA) content in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- abscisic acid (ABA) contente0
- Direction
- increasee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Foliar CaCl2 increased gibberellic acid (GA) content in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- gibberellic acid (GA) contente0
- Direction
- increasee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Foliar CaCl2 increased superoxide dismutase (SOD) activity in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- superoxide dismutase (SOD) activitye0
- Direction
- enhancee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Foliar CaCl2 decreased concentration of intercellular carbon dioxide (Ci) in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- concentration of intercellular carbon dioxide (Ci)e0
- Direction
- decreasee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Foliar CaCl2 decreased number of dehiscence fruits in drought-stressed Camellia oleifera.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- spraying CaCl2 solution on leavese0
- Outcome
- number of dehiscence fruitse0
- Direction
- decreasee0
- Qualifier
- Under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under drought stress, spraying CaCl2 solution on leaves could significantly increase the net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs), endogenous hormone indoleacetic acid (IAA) content, abscisic acid (ABA) content, and gibberellic acid (GA) content in organs and tissues; enhance the superoxide dismutase (SOD) activity; and decrease the concentration of intercellular carbon dioxide (Ci) and number of dehiscence fruits.”
t0“Camellia oleifera Abel”
Claim · model-written summary
Spraying 10 mmol/L CaCl2 alleviated drought damage to tung oil trees.
- Taxon
- Camellia oleifera AbelCamellia oleiferat0
- Treatment
- Spraying 10 mmol/L CaCl2e0
- Outcome
- damage of drought stresse0
- Direction
- alleviatese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying 10 mmol/L CaCl2 effectively alleviates the damage of drought stress to tung oil trees”
t0“Camellia oleifera Abel”
The same questions in other papers
application · physiology: photosynthesis · Camellia oleifera (tea-oil Camellia)Results agree
1 paper in the same direction as this paper
- positive
application · molecular: metabolites · Camellia oleifera (tea-oil Camellia)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.