Abstract
Arizona is currently experiencing an explosion in the commercial cultivation and production of table grapes. Decreasing water supplies, increasing water cost, and recent groundwater legislation are forcing Arizona growers to be more water efficient if they are to remain competitive with other markets. Research was conducted to determine the effect of water stress on vine growth and berry ripening. “Flame Seedless” table grapes (4th leaf) were subjected to increasing water stress levels based upon infrared canopy temperatures and the crop water stress index (CWSI). A lower water stress level (CWSI = 0.18 units at irrigation) promoted earlier berry sizing, increased berry weight, and increased cluster weight over drier treatments. Significantly higher growth (P= 0.01), based on pruning weights, also was attained at the lower water stress level. However, highest production (grade 1 and 2 packed boxes) was attained when irrigations were scheduled at 0.30 CWSI units. Total applied water to maintain the wet, medium, and dry treatments was 1136 mm (CWSI = 0.18), 775 mm (CWSI = 0.30), and 669 mm (CWSI = 0.33), respectively.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 5
Claim · model-written summary
Lower water stress promoted earlier berry sizing than drier treatments.
Verbatim
e0“A lower water stress level (CWSI = 0.18 units at irrigation) promoted earlier berry sizing, increased berry weight, and increased cluster weight over drier treatments”
t0“TABLE GRAPE”
Claim · model-written summary
Lower water stress increased berry and cluster weights versus drier treatments.
Verbatim
e0“A lower water stress level (CWSI = 0.18 units at irrigation) promoted earlier berry sizing, increased berry weight, and increased cluster weight over drier treatments”
t0“TABLE GRAPE”
Claim · model-written summary
Growth by pruning weight was significantly higher under lower water stress.
- Taxon
- TABLE GRAPEt0
- Treatment
- lower water stress levele0
- Outcome
- growthe0
- Direction
- highere0
- Qualifier
- based on pruning weightse0
Not reportedComparator
Verbatim
e0“Significantly higher growth (P= 0.01), based on pruning weights, also was attained at the lower water stress level”
t0“TABLE GRAPE”
Claim · model-written summary
Packed-box production was highest at 0.30 CWSI irrigation scheduling.
- Taxon
- TABLE GRAPEt0
- Treatment
- irrigations were scheduled at 0.30 CWSI unitse0
- Outcome
- production (grade 1 and 2 packed boxes)e0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“highest production (grade 1 and 2 packed boxes) was attained when irrigations were scheduled at 0.30 CWSI units”
t0“TABLE GRAPE”
Claim · model-written summary
Wet, medium and dry treatments required 1136, 775 and 669 mm of applied water, respectively.
Verbatim
e0“Total applied water to maintain the wet, medium, and dry treatments was 1136 mm (CWSI = 0.18), 775 mm (CWSI = 0.30), and 669 mm (CWSI = 0.33), respectively”
t0“TABLE GRAPE”
The same questions in other papers
drought · yield · VitisResults differ
3 papers in the same direction as this paper · 14 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
15 papers more in this group
See all 19 papers →drought · growth · VitisResults differ
5 papers in the same direction as this paper · 26 in the opposite direction
- negative
- negative
- negative
28 papers more in this group
See all 32 papers →irrigation · yield · VitisResults differ
51 papers in the same direction as this paper · 28 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- no effect
- negative
79 papers more in this group
See all 83 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.