Abstract
<ListItem><ItemContent> • Regulated deficit irrigation was assessed in almond, peach and plum over 3 years. </ItemContent></ListItem><ListItem><ItemContent> • Fruit-growth slowdown stages are appropriate periods to apply deficit irrigation. </ItemContent></ListItem><ListItem><ItemContent> • Peach yields were unaffected under a regulated deficit irrigation of 75% ETC. </ItemContent></ListItem><ListItem><ItemContent> • Regulated deficit irrigation of 50% ETC maintained yields of almond and plum. </ItemContent></ListItem><ListItem><ItemContent> • Fruit quality improved under regulated deficit irrigation. </ItemContent></ListItem> The effects of regulated deficit irrigation (RDI) on the performance of almond cv. Tuono, peach cv. JH-Hall and plum cv. Stanley were assessed on the Saiss Plain (NW, Morocco) over three consecutive growing seasons (2011–2013). Irrigation treatments consisted of a control, irrigation applied to fully satisfy crop water requirements (100% ETC), and two RDI treatments, irrigation applied to 75% ETC (RDI-75) and 50% ETC (RDI-50). These three treatments were applied during fruit-growth slowdown periods corresponding to Stages II and III in almond and Stage II in peach and plum. Yield and fruit quality traits were determined. The effect of RDI differed between species. Yield and fruit size were reduced significantly only in peach under RDI-50. Fruit quality improved in this species in the first year of the experiment, with an increase of sugar/acid ratio and polyphenol content. Plum quality also improved but the effects were significant only in the second and third years. Similar results were recorded in almond kernel, but their epidermal grooves were deeper under RDI-50, and this may have affected their commercial value. It is concluded that water can be saved during the fruit-growth slowdown period by up to 25% in peach and 50% in almond and plum with improvements in fruit quality without affecting total yield.
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Claims 14
Claim · model-written summary
Peach yield fell significantly under RDI-50.
- Taxon
- peach
Prunus persicae0 - Treatment
- RDI-50e0
- Outcome
- Yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield and fruit size were reduced significantly only in peach under RDI-50”
Claim · model-written summary
Peach fruit size fell significantly under RDI-50.
- Taxon
- peachPrunus persicae0
- Treatment
- RDI-50e0
- Outcome
- fruit sizee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield and fruit size were reduced significantly only in peach under RDI-50”
Claim · model-written summary
Peach sugar to acid ratio increased under deficit irrigation in the first year.
- Taxon
- peachPrunus persicat0
- Treatment
- REGULATED DEFICIT IRRIGATIONt0
- Outcome
- sugar/acid ratioe0
- Direction
- increasee0
- Qualifier
- first year of the experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit quality improved in this species in the first year of the experiment, with an increase of sugar/acid ratio and polyphenol content”
t0“PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION”
Claim · model-written summary
Peach polyphenol content increased under deficit irrigation in the first year.
- Taxon
- peachPrunus persicat0
- Treatment
- REGULATED DEFICIT IRRIGATIONt0
- Outcome
- polyphenol contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit quality improved in this species in the first year of the experiment, with an increase of sugar/acid ratio and polyphenol content”
t0“PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION”
Claim · model-written summary
Plum quality improved significantly in years two and three.
- Taxon
- Plum
Prunus domesticae0 - Treatment
- REGULATED DEFICIT IRRIGATIONt0
- Outcome
- qualitye0
- Direction
- improvede0
- Qualifier
- second and third yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plum quality also improved but the effects were significant only in the second and third years”
t0“PLUM UNDER REGULATED DEFICIT IRRIGATION”
Claim · model-written summary
Almond kernel quality similarly improved.
- Taxon
- almond
Prunus dulcise0 - Treatment
- REGULATED DEFICIT IRRIGATIONt0
- Outcome
- almond kernele0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar results were recorded in almond kernel”
t0“ALMOND, PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION”
Claim · model-written summary
Almond kernel epidermal grooves became deeper under RDI-50.
- Taxon
- ALMONDPrunus dulcist0
- Treatment
- RDI-50e0
- Outcome
- epidermal groovese0
- Direction
- deepere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their epidermal grooves were deeper under RDI-50”
t0“ALMOND”
Claim · model-written summary
The deeper grooves may have affected almond commercial value.
- Taxon
- ALMONDPrunus dulcist0
- Outcome
- commercial valuee0
- Qualifier
- epidermal grooves were deepere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their epidermal grooves were deeper under RDI-50, and this may have affected their commercial value”
t0“ALMOND”
Claim · model-written summary
Peach yield was maintained with 75% ETC irrigation.
- Taxon
- PeachPrunus persicae0
- Treatment
- regulated deficit irrigation of 75% ETCe0
- Outcome
- yieldse0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peach yields were unaffected under a regulated deficit irrigation of 75% ETC”
Claim · model-written summary
Almond yield was maintained at 50% ETC irrigation.
- Taxon
- almondPrunus dulcise0
- Treatment
- Regulated deficit irrigation of 50% ETCe0
- Outcome
- yieldse0
- Direction
- maintainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regulated deficit irrigation of 50% ETC maintained yields of almond and plum”
Claim · model-written summary
Plum yield was maintained at 50% ETC irrigation.
- Taxon
- plumPrunus domesticae0
- Treatment
- Regulated deficit irrigation of 50% ETCe0
- Outcome
- yieldse0
- Direction
- maintainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regulated deficit irrigation of 50% ETC maintained yields of almond and plum”
Claim · model-written summary
The authors concluded that peach irrigation can be reduced by up to 25% during fruit-growth slowdown without reducing yield.
- Taxon
- peachPrunus persicae0
- Outcome
- water can be savede0
- Value
- 25%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water can be saved during the fruit-growth slowdown period by up to 25% in peach and 50% in almond and plum with improvements in fruit quality without affecting total yield”
Claim · model-written summary
The authors concluded that almond irrigation can be reduced by up to 50% during fruit-growth slowdown without reducing yield.
- Taxon
- almondPrunus dulcise0
- Outcome
- water can be savede0
- Value
- 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water can be saved during the fruit-growth slowdown period by up to 25% in peach and 50% in almond and plum with improvements in fruit quality without affecting total yield”
Claim · model-written summary
The authors concluded that plum irrigation can be reduced by up to 50% during fruit-growth slowdown without reducing yield.
- Taxon
- plumPrunus domesticae0
- Outcome
- water can be savede0
- Value
- 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water can be saved during the fruit-growth slowdown period by up to 25% in peach and 50% in almond and plum with improvements in fruit quality without affecting total yield”
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