Abstract
Water deficit during the growing season is a major factor limiting vegetable production. Therefore, saving water used for vegetable production by applying regulated deficit irrigation (RDI) can be a strategy to reduce water supply. The effects of different RDI levels from irrigation systems on vegetable yields, yield components, water use, and water use efficiency (WUE) of maize, lettuce, and garland chrysanthemum were investigated in a pot experiment. Plants were subjected to four irrigation levels, as follows: full irrigation as a control (RDI-100), 70% of full irrigation (RDI-70), 50% of full irrigation (RDI-50), and 30% of full irrigation (RDI-30). The WUE values of maize and lettuce were significantly higher with RDI-30 than other treatments, yet a significant reduction of WUE in garland chrysanthemum was detected compared to other treatments. There were significant correlations of WUEi with WUEyield and WUEbiomass in maize plants, indicating that WUEi can be a useful nondestructive estimator of yields and biomass contents in maize. Moreover, a significant correlation between WUEi and WUEyield in lettuce plants was observed. This index was correlated with economic production, and can be used to assess fresh weights and as an index of the irrigated water content. These results for evaluating water deficits in plants used nondestructive measurements that are applicable to large-scale water management of vegetable plants, thereby enabling scarce water resources to be conserved.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7
Claim · model-written summary
Maize WUE was significantly higher with RDI-30 than other treatments.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The WUE values of maize and lettuce were significantly higher with RDI-30 than other treatments”
Claim · model-written summary
Lettuce WUE was significantly higher with RDI-30 than other treatments.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- RDI-30e0
- Outcome
- WUE valuese0
- Direction
- highere0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The WUE values of maize and lettuce were significantly higher with RDI-30 than other treatments”
Claim · model-written summary
Garland chrysanthemum WUE was significantly reduced under RDI-30 versus other treatments.
Not reportedTreatment
Verbatim
e0“yet a significant reduction of WUE in garland chrysanthemum was detected compared to other treatments”
Claim · model-written summary
Maize WUEi correlated significantly with WUEyield and WUEbiomass.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were significant correlations of WUEi with WUEyield and WUEbiomass in maize plants”
Claim · model-written summary
The authors consider WUEi a useful nondestructive estimator of maize yield and biomass.
- Outcome
- useful nondestructive estimator of yields and biomass contentse0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WUEi can be a useful nondestructive estimator of yields and biomass contents in maize”
Claim · model-written summary
Lettuce WUEi correlated significantly with WUEyield.
- Taxon
- lettuceLactuca sativae0
- Organ / stage
- plantse0
- Outcome
- WUEyielde0
- Qualifier
- significant correlatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant correlation between WUEi and WUEyield in lettuce plants was observed”
Claim · model-written summary
The index correlated with economic production and can assess fresh weight and irrigated water content.
Not reportedComparatorValue
Verbatim
e0“This index was correlated with economic production, and can be used to assess fresh weights and as an index of the irrigated water content”
t0“VEGETABLE PRODUCTION”
The same questions in other papers
irrigation · physiology: water · Lactuca sativa (garden lettuce)Positive and negative results
15 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- negative
17 papers more in this group
See all 21 papers →irrigation · physiology: water · Zea mays (maize)Positive and negative results
283 papers in the same direction as this paper · 39 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- negative
320 papers more in this group
See all 324 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.