Abstract
ABSTRACT Different irrigation times result in variable transpiration rates, due to the water availability and its interaction with the evapotranspiration demand. The vapor pressure deficit is an accurate indicator of the atmosfere evaporative capacity and can affect plants because of the movement of water in the soil-plant-atmosphere continuum system. This study aimed to evaluate the plant growth, yield and water-use efficiency of bell peppers under irrigation times (8 a.m. and 2 p.m.) and water replacement levels (60 %, 80 %, 100 %, 120 % and 140 % of the crop water requirement - ETc) based on the evapotranspiration demand. The increase in the irrigation levels could be fit to linear models for the variables number of fruits per plant, mean and total fruit weight per plant, fruit length, and root, stem and total dry weight. Irrigation at 2 p.m. increased the total and mean fruit weight and number of fruits per plant, as well as fruit length, if compared to the irrigation at 8 a.m., besides increasing the yield by 50.82 % (2,343.0 g plant-1 to 3,533.6 g plant-1) and the water-use efficiency by 55.64 %. In areas subjected to water shortages, establishing irrigation times based on irrigation management practices can increase the water-use efficiency and yield for bell peppers.
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Claims 7
Claim · model-written summary
Higher irrigation levels followed linear responses for fruit number, fruit weights and fruit length.
- Taxon
- bell peppert0
- Treatment
- irrigation levelse0
- Outcome
- number of fruits per plant, mean and total fruit weight per plant, fruit lengthe0
Not reportedDirection
Verbatim
t0“bell pepper”
e0“The increase in the irrigation levels could be fit to linear models for the variables number of fruits per plant, mean and total fruit weight per plant, fruit length, and root, stem and total dry weight.”
Claim · model-written summary
Higher irrigation levels followed linear responses for root, stem and total dry weight.
Not reportedDirection
Verbatim
t0“bell pepper”
e0“The increase in the irrigation levels could be fit to linear models for the variables number of fruits per plant, mean and total fruit weight per plant, fruit length, and root, stem and total dry weight.”
Claim · model-written summary
Irrigation at 2 p.m. increased total and mean fruit weight and fruit number relative to 8 a.m. irrigation.
Verbatim
t0“bell pepper”
e0“Irrigation at 2 p.m. increased the total and mean fruit weight and number of fruits per plant, as well as fruit length, if compared to the irrigation at 8 a.m.”
Claim · model-written summary
Irrigation at 2 p.m. increased fruit length relative to 8 a.m. irrigation.
Verbatim
t0“bell pepper”
e0“Irrigation at 2 p.m. increased the total and mean fruit weight and number of fruits per plant, as well as fruit length, if compared to the irrigation at 8 a.m.”
Claim · model-written summary
Irrigation at 2 p.m. increased yield by 50.82 % relative to 8 a.m. irrigation.
Verbatim
t0“bell pepper”
e0“Irrigation at 2 p.m. increased the total and mean fruit weight and number of fruits per plant, as well as fruit length, if compared to the irrigation at 8 a.m., besides increasing the yield by 50.82 % (2,343.0 g plant-1 to 3,533.6 g plant-1)”
Claim · model-written summary
Irrigation at 2 p.m. increased water-use efficiency by 55.64 % relative to 8 a.m. irrigation.
Verbatim
t0“bell pepper”
e0“Irrigation at 2 p.m. increased the total and mean fruit weight and number of fruits per plant, as well as fruit length, if compared to the irrigation at 8 a.m., besides increasing the yield by 50.82 % (2,343.0 g plant-1 to 3,533.6 g plant-1) and the water-use efficiency by 55.64 %.”
Claim · model-written summary
The authors recommend setting irrigation times to increase bell pepper water-use efficiency and yield in water-short areas.
Verbatim
e0“In areas subjected to water shortages, establishing irrigation times based on irrigation management practices can increase the water-use efficiency and yield for bell peppers.”
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irrigation · yield · Capsicum annuum (sweet pepper)Positive and negative results
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See all 14 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.