Abstract
This study was conducted to investigate the effects of different drip irrigation methods and different irrigation levels on yield, quality and water use characteristics of lettuce (Lactuca sativa var. longifolia cv. Lital) cultivated in a solar greenhouse from 07 October 2009 to 03 December 2009 in the Eastern Mediterranean region of Turkey. The irrigation methods were consisted of traditional surface drip irrigation (TDI), subsurface drip irrigation at 10 cm drip line depth (SDI10) and subsurface drip irrigation at 20 cm drip line depth (SDI20). At the treatment of irrigation levels, five irrigation treatments (I) were based on adjustment coefficients (0.25, 0.50, 0.75, 1.0 and 1.25) of Class A pan evaporation. For the yield and quality parameters of plant; marketable head weight (yield), number of marketable leaves, leaf area, plant height and diameters, plant dry weight, core diameters and firmness of head, leaf chlorophyll content, total soluble solids (TSS as °Brix), electrical conductivity (EC), pH, total dissolved solids (TDS) and salinity of leaves’ juice were determined. The yield and yield components were not affected by the irrigation methods except forcore and plant diameters. Irrigation levels had significantly (p < 0.01) different effects on yield and yield components except for plant dry weight, plant height and head firmness. The results showed that the highest yield was obtained from SDI10xI100 treatment. The water use efficiency (WUE) and the irrigation water use efficiency (IWUE) increased as the irrigation was reduced. Key words: Subsurface drip irrigation, irrigation level, water use efficiency.
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Claims 7
Claim · model-written summary
Irrigation method did not affect yield and yield components except core and plant diameters.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- irrigation methodse0
- Outcome
- yield and yield componentse0
- Direction
- not affectede0
- Qualifier
- except forcore and plant diameterse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield and yield components were not affected by the irrigation methods except forcore and plant diameters”
e1“lettuce (Lactuca sativa var. longifolia cv. Lital)”
Claim · model-written summary
Irrigation methods affected core and plant diameters.
- Taxon
- lettuceLactuca sativae1
- Treatment
- irrigation methodse0
- Outcome
- core and plant diameterse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“not affected by the irrigation methods except forcore and plant diameters”
e1“lettuce (Lactuca sativa var. longifolia cv. Lital)”
Claim · model-written summary
Irrigation levels significantly affected yield and yield components.
- Taxon
- lettuceLactuca sativae1
- Treatment
- Irrigation levelse0
- Outcome
- yield and yield componentse0
- Qualifier
- p < 0.01e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation levels had significantly (p < 0.01) different effects on yield and yield components except for plant dry weight, plant height and head firmness”
e1“lettuce (Lactuca sativa var. longifolia cv. Lital)”
Claim · model-written summary
Irrigation levels did not affect plant dry weight, plant height or head firmness.
- Taxon
- lettuceLactuca sativae1
- Treatment
- Irrigation levelse0
- Outcome
- plant dry weight, plant height and head firmnesse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation levels had significantly (p < 0.01) different effects on yield and yield components except for plant dry weight, plant height and head firmness”
e1“lettuce (Lactuca sativa var. longifolia cv. Lital)”
Claim · model-written summary
SDI10xI100 gave the highest yield.
- Taxon
- lettuceLactuca sativae1
- Treatment
- SDI10xI100 treatmente0
- Outcome
- yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest yield was obtained from SDI10xI100 treatment”
e1“lettuce (Lactuca sativa var. longifolia cv. Lital)”
Claim · model-written summary
Water use efficiency increased as irrigation decreased.
- Taxon
- lettuceLactuca sativae1
- Treatment
- irrigatione0
- Outcome
- water use efficiency (WUE)e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water use efficiency (WUE) and the irrigation water use efficiency (IWUE) increased as the irrigation was reduced”
e1“lettuce (Lactuca sativa var. longifolia cv. Lital)”
Claim · model-written summary
Irrigation water use efficiency increased as irrigation decreased.
- Taxon
- lettuceLactuca sativae1
- Treatment
- irrigatione0
- Outcome
- irrigation water use efficiency (IWUE)e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water use efficiency (WUE) and the irrigation water use efficiency (IWUE) increased as the irrigation was reduced”
e1“lettuce (Lactuca sativa var. longifolia cv. Lital)”
The same questions in other papers
irrigation · quality: postharvest · Lactuca sativa (garden lettuce)Positive and negative results
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- no effect
- positive
- positive
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See all 12 papers →irrigation · yield · Lactuca sativa (garden lettuce)Positive and negative results
24 papers in the same direction as this paper · 32 in the opposite direction
- positive
- negative
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See all 57 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.