Abstract
The effects of plastic filming under different covering layers on the growth,photosynthesis and related enzymes of grapevine were studied to provide guidance for early maturing cultivation in the Southern China.The experiments investigated the influences of no plastic cover(control),single plastic film(treatment I),double plastic films(treatment II),and triple plastic films(treatment III) on the growth and physiological characteristics of Summer Black and Zuijinxiang.The significant differences in average stem height,rhizome diameter and leaf size were observed between the treatment II/III and the control,and the treatment III had the strongest effect,while the differences between treatment I and the control were not obvious.The increase in the layers of plastic film resulted in the decrease of net photosynthetic rate,transpiration rate,stomatal conductance,intercellular CO2 concentrations and water use efficiency.The level of chlorophyll a and chlorophyll b increased in respond to the additional layers,with a decline of the ratio of chlorophyll a and chlorophyll b.The concentration of MDA also increased.In addition,plastic filming influenced the concentration of reduced glutathione as well as the activities of superoxide dismutase,peroxidase and catalase of grapevine leaves.The intensity of these impacts was higher in treatment I,followed by treatment II,the control group and treatment III in decreasing order.Summer Black also showed higher tolerance to weak light compared to Zuijinxiang.In conclusion,normal growth and development of Summer Black and Zuijinxiang could be achieved under single layer plastic filming,while two-layer plastic filming may result in certain degree of the impact.Plastic filming with three layers can severely influence the growth of the two cultivars.
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Claims 10
Claim · model-written summary
Double and triple films changed stem height, rhizome diameter and leaf size relative to the control, with triple films strongest.
- Treatment
- treatment II/IIIe0
- Outcome
- average stem height,rhizome diameter and leaf sizee0
- Direction
- strongest effecte0
- Comparator
- the controle0
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The significant differences in average stem height,rhizome diameter and leaf size were observed between the treatment II/III and the control,and the treatment III had the strongest effect,while the differences between treatment I and the control were not obvious.”
t0“grapevine”
Claim · model-written summary
Increasing film layers decreased net photosynthetic rate,transpiration rate,stomatal conductance.
- Treatment
- increase in the layers of plastic filme0
- Outcome
- net photosynthetic rate,transpiration rate,stomatal conductancee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in the layers of plastic film resulted in the decrease of net photosynthetic rate,transpiration rate,stomatal conductance,intercellular CO2 concentrations and water use efficiency.”
t0“grapevine”
Claim · model-written summary
Increasing film layers decreased intercellular CO2 concentrations and water use efficiency.
- Treatment
- increase in the layers of plastic filme0
- Outcome
- intercellular CO2 concentrations and water use efficiencye0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in the layers of plastic film resulted in the decrease of net photosynthetic rate,transpiration rate,stomatal conductance,intercellular CO2 concentrations and water use efficiency.”
t0“grapevine”
Claim · model-written summary
Additional film layers increased chlorophyll a and b.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The level of chlorophyll a and chlorophyll b increased in respond to the additional layers,with a decline of the ratio of chlorophyll a and chlorophyll b.”
t0“grapevine”
Claim · model-written summary
Additional film layers decreased the chlorophyll a to b ratio.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The level of chlorophyll a and chlorophyll b increased in respond to the additional layers,with a decline of the ratio of chlorophyll a and chlorophyll b.”
t0“grapevine”
Claim · model-written summary
MDA concentration increased.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of MDA also increased.”
t0“grapevine”
Claim · model-written summary
Film treatments affected glutathione concentration and antioxidant enzyme activities, with impact intensity ranked I, II, control, III.
- Treatment
- plastic filminge0
- Outcome
- concentration of reduced glutathione as well as the activities of superoxide dismutase,peroxidase and catalasee0
- Direction
- higher in treatment Ie0
- Qualifier
- followed by treatment II,the control group and treatment III in decreasing ordere0
- Comparator
- the control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In addition,plastic filming influenced the concentration of reduced glutathione as well as the activities of superoxide dismutase,peroxidase and catalase of grapevine leaves.The intensity of these impacts was higher in treatment I,followed by treatment II,the control group and treatment III in decreasing order.”
Claim · model-written summary
Summer Black had higher weak-light tolerance than Zuijinxiang.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Summer Black also showed higher tolerance to weak light compared to Zuijinxiang.”
t0“grapevine”
Claim · model-written summary
Single-layer film permitted normal growth of both cultivars.
- Treatment
- single layer plastic filminge0
- Outcome
- normal growth and development of Summer Black and Zuijinxiange0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In conclusion,normal growth and development of Summer Black and Zuijinxiang could be achieved under single layer plastic filming,while two-layer plastic filming may result in certain degree of the impact.Plastic filming with three layers can severely influence the growth of the two cultivars.”
t0“grapevine”
Claim · model-written summary
Three film layers severely affected growth of both cultivars.
- Treatment
- Plastic filming with three layerse0
- Outcome
- growth of the two cultivarse0
- Direction
- severely influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In conclusion,normal growth and development of Summer Black and Zuijinxiang could be achieved under single layer plastic filming,while two-layer plastic filming may result in certain degree of the impact.Plastic filming with three layers can severely influence the growth of the two cultivars.”
t0“grapevine”
The same questions in other papers
mulching · physiology: photosynthesis · VitisPositive and negative results
1 in the opposite direction
- positive
mulching · physiology: gas exchange · VitisPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
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.