Abstract
【Objective】 The effects of GA3 on the fruit sugar accumulation and sugar metabolism during the grape fruit development were discussed.【Method】 Experiment was conducted with 3-year-old 'Red globe' grape trees,the effect of GA3 on the fruit development,sugar accumulation and related enzyme activities in sugar metabolism of grape were studied after spraying GA3(10,20 and 30 mg/L) on the fruit before blossoming and after blossoming.【Result】 1)Longitudinal diameter and traverse diameter of grape increased after treated by exogenous plant hormone,the fruit shape index decreased,the average fruit weight,the average fruit cluster and the soluble solid content of grape increased after treated by GA3.2)The main sugar of grape is hexose,and the rate of sugar accumulation and the sugar content increased after treated by GA3,but the treatment didn't change the total current of sugar accumulation.3)At the early stage of grape development the activity of acid invertase and neutral invertase increased,while at the later stage of grape berries development,the activity of sucrose synthnase increased,with T2(20 mg/L GA3) being most significant.【Conclusion】 It showed that the exogenous plant hormone may regulate grape sugar accumulation by changing the sucrose-metabolizing enzymes in sugar.
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Claims 9
Claim · model-written summary
Exogenous hormone increased grape longitudinal and transverse diameters.
- Taxon
- grapee0
- Treatment
- exogenous plant hormonee0
- Outcome
- Longitudinal diameter and traverse diametere0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Longitudinal diameter and traverse diameter of grape increased after treated by exogenous plant hormone”
Claim · model-written summary
Hormone treatment decreased grape fruit shape index.
Not reportedComparator
Verbatim
e0“the fruit shape index decreased”
e1“Longitudinal diameter and traverse diameter of grape increased after treated by exogenous plant hormone”
Claim · model-written summary
GA3 increased average fruit weight, average fruit cluster and soluble solid content of grape.
- Taxon
- grapee0
- Treatment
- GA3e0
- Outcome
- average fruit weight,the average fruit cluster and the soluble solid contente0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“the average fruit weight,the average fruit cluster and the soluble solid content of grape increased after treated by GA3.”
Claim · model-written summary
Hexose was the main grape sugar.
Not reportedDirection
Verbatim
e0“The main sugar of grape is hexose”
Claim · model-written summary
GA3 increased grape sugar accumulation rate and sugar content.
- Taxon
- grapee0
- Treatment
- GA3e0
- Outcome
- rate of sugar accumulation and the sugar contente0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“The main sugar of grape is hexose,and the rate of sugar accumulation and the sugar content increased after treated by GA3”
Claim · model-written summary
GA3 did not change the total current of grape sugar accumulation.
Not reportedComparator
Verbatim
e0“but the treatment didn't change the total current of sugar accumulation.”
e1“The main sugar of grape is hexose,and the rate of sugar accumulation and the sugar content increased after treated by GA3”
Claim · model-written summary
GA3 increased acid and neutral invertase activity early in grape development.
- Taxon
- grapee0
- Organ / stage
- early stage of grape developmente0
- Treatment
- GA3e1
- Gene
- acid invertase and neutral invertasee0
- Outcome
- activity of acid invertase and neutral invertasee0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“At the early stage of grape development the activity of acid invertase and neutral invertase increased”
e1“T2(20 mg/L GA3) being most significant”
Claim · model-written summary
Later in grape berry development, sucrose synthnase activity increased, with T2 at 20 mg/L GA3 most significant.
- Taxon
- grapee0
- Organ / stage
- later stage of grape berries developmente0
- Treatment
- T2(20 mg/L GA3)e0
- Gene
- sucrose synthnasee0
- Outcome
- activity of sucrose synthnasee0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“at the later stage of grape berries development,the activity of sucrose synthnase increased,with T2(20 mg/L GA3) being most significant.”
Claim · model-written summary
Exogenous hormone may regulate grape sugar accumulation by changing sucrose-metabolizing enzymes.
Verbatim
e0“It showed that the exogenous plant hormone may regulate grape sugar accumulation by changing the sucrose-metabolizing enzymes in sugar.”
The same questions in other papers
Gibberellic acid · molecular: metabolites · VitisResults differ
22 papers in the same direction as this paper · 7 in the opposite direction
- negative
- no effect
- no effect
26 papers more in this group
See all 30 papers →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.