Abstract
In order to diminish the disturbing effect of climatic changes in viticulture there were studied two agrotechnical factors which have an important impact on water regime in soil and on vine growth, respectively the soil maintenance system and fruit load. In comparison with black furrow (considered as control) there were experimented the total mulching with straws, the partial mulching (between the rows) with marc compost and minimum tillage. To reduce the negative impact of drought conditions in case of each soil maintenance systems a reduction of normal fruit load with 20 and 40% was also experimented. The experimental data obtained reveled that soil maintenance systems by mulching had a positive effect especially on the technological features of the grapes, assuring higher values for grain composition index and for efficiency index, that is a higher must content in grapes and a higher winemaking efficiency. The chemical properties of the grapes (sugar content, acidity, glucoacidimetric index) were not influenced in an obvious manner. Opposite, the reduction of fruit load determined in case of all soil maintenance systems an increase of sugar content in grapes, parallel with an evident decrease of must acidity, determining high values of the glucoacidimetric index, unfavorable for obtaining qualitative and typical wines. The changes induced in grapes quality by the two experimental factors have been reflected also in the wines quality (alchoolic degree, total acidity, unreducing extract). Ranking the wines obtained from all the experimental variants (combinations between the two experimental factors) by using the synthetic index of wines quality (Ntaj) one could notice that the soil maintenance systems by mulching and the fruit load of 15-18 buds/m 2 had a positive effect on wines quality under drought conditions.
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Claims 9
Claim · model-written summary
Soil maintenance by mulching gave higher grain composition index and efficiency index in grapes than black furrow.
Verbatim
e0“the soil maintenance system and fruit load”
e1“soil maintenance systems by mulching had a positive effect especially on the technological features of the grapes, assuring higher values for grain composition index and for efficiency index”
e2“In comparison with black furrow (considered as control)”
Claim · model-written summary
Soil maintenance by mulching gave a higher must content in grapes than black furrow.
Verbatim
e1“soil maintenance systems by mulching had a positive effect especially on the technological features of the grapes, assuring higher values for grain composition index and for efficiency index”
e2“In comparison with black furrow (considered as control)”
e4“a higher must content in grapes and a higher winemaking efficiency”
Claim · model-written summary
Soil maintenance by mulching gave a higher winemaking efficiency than black furrow.
Verbatim
e1“soil maintenance systems by mulching had a positive effect especially on the technological features of the grapes, assuring higher values for grain composition index and for efficiency index”
e2“In comparison with black furrow (considered as control)”
e4“a higher must content in grapes and a higher winemaking efficiency”
Claim · model-written summary
Soil maintenance systems did not obviously influence the chemical properties of grapes (sugar content, acidity, glucoacidimetric index).
- Taxon
- grapese3
- Treatment
- soil maintenance systeme0
- Outcome
- chemical properties of the grapese3
- Direction
- not influenced in an obvious mannere3
Not reportedComparator
Verbatim
e0“the soil maintenance system and fruit load”
e3“The chemical properties of the grapes (sugar content, acidity, glucoacidimetric index) were not influenced in an obvious manner”
Claim · model-written summary
Reducing fruit load by 20 and 40% increased sugar content in grapes.
Verbatim
e5“a reduction of normal fruit load with 20 and 40%”
e6“the reduction of fruit load determined in case of all soil maintenance systems an increase of sugar content in grapes, parallel with an evident decrease of must acidity, determining high values of the glucoacidimetric index, unfavorable for obtaining qualitative and typical wines”
Claim · model-written summary
Reducing fruit load gave an evident decrease of must acidity in grapes.
Verbatim
e5“a reduction of normal fruit load with 20 and 40%”
e6“the reduction of fruit load determined in case of all soil maintenance systems an increase of sugar content in grapes, parallel with an evident decrease of must acidity, determining high values of the glucoacidimetric index, unfavorable for obtaining qualitative and typical wines”
Claim · model-written summary
Reducing fruit load gave high glucoacidimetric index values in grapes, unfavorable for qualitative and typical wines.
Verbatim
e5“a reduction of normal fruit load with 20 and 40%”
e6“the reduction of fruit load determined in case of all soil maintenance systems an increase of sugar content in grapes, parallel with an evident decrease of must acidity, determining high values of the glucoacidimetric index, unfavorable for obtaining qualitative and typical wines”
Claim · model-written summary
Changes in grape quality induced by the two experimental factors were reflected in wine quality (alcoholic degree, total acidity, unreducing extract).
- Taxon
- grapese7
- Treatment
- two experimental factorse7
- Outcome
- wines qualitye7
- Direction
- have been reflectede7
Not reportedComparator
Verbatim
e7“The changes induced in grapes quality by the two experimental factors have been reflected also in the wines quality (alchoolic degree, total acidity, unreducing extract)”
Claim · model-written summary
Soil maintenance by mulching combined with a fruit load of 15-18 buds/m2 had a positive effect on wine quality under drought.
- Taxon
- grapese1
- Treatment
- soil maintenance systems by mulching and the fruit load of 15-18 buds/m 2e7
- Outcome
- wines qualitye7
- Direction
- positive effecte7
- Setting
- under drought conditionse7
Not reportedComparator
Verbatim
e1“soil maintenance systems by mulching had a positive effect especially on the technological features of the grapes”
e7“the soil maintenance systems by mulching and the fruit load of 15-18 buds/m 2 had a positive effect on wines quality under drought conditions”
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See all 9 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.