Abstract
To determine the effectiveness of black plastic mulch alone and in combination with row covers, on growth and physiological changes of cucumber plants, 6 treatments were established in a randomised complete block design with 4 replications: bare soil (control); black polyethylene mulch alone (B); B plus a clear cover of perforated polyethylene (BRCP); B plus a white cover of perforated polyethylene (BRWP); B plus an Agribon cover of polypropylene (BRA); and B plus a Kimberly farm row cover (BRK). For the plants grown with mulch or mulch combined with row covers, the dry weight of leaves 50 days after seeding (DAS), and the dry weight of whole plants (at 50 and 110 DAS) were significantly ( P <0.05) different from the control. Early yields of treatments B, BRCP, BRWP, BRA and BRK were 2.1, 1.9, 2.6, 1.9 and 2.4 times higher than the control, which yielded 10 t/ha. Total yields were increased by 9.7, 15.4, 19.8, 14.9 and 20 t/ha, over the control which yielded 104 t/ha. Increases in plant dry weight explained the changes in yield. Stomatal conductance may explain in part, the increase in photosynthetic rate, but may not explain yield increase.
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Claims 13
Claim · model-written summary
Mulch or mulch plus row covers significantly changed leaf dry weight at 50 DAS and whole-plant dry weight at 50 and 110 DAS versus control.
- Taxon
- cucumber
Cucumis sativust0 - Treatment
- mulch or mulch combined with row coverse0
- Outcome
- dry weight of leaves 50 days after seeding (DAS), and the dry weight of whole plants (at 50 and 110 DAS)e0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For the plants grown with mulch or mulch combined with row covers, the dry weight of leaves 50 days after seeding (DAS), and the dry weight of whole plants (at 50 and 110 DAS) were significantly ( P <0.05) different from the control.”
t0“cucumber”
Claim · model-written summary
Black mulch increased early cucumber yield 2.1 times over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- black polyethylene mulch alone (B)e1
- Outcome
- Early yieldse0
- Direction
- highere0
- Value
- 2.1e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early yields of treatments B, BRCP, BRWP, BRA and BRK were 2.1, 1.9, 2.6, 1.9 and 2.4 times higher than the control, which yielded 10 t/ha.”
e1“black polyethylene mulch alone (B)”
t0“cucumber”
Claim · model-written summary
BRCP increased early cucumber yield 1.9 times over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- BRCPe0
- Outcome
- Early yieldse0
- Direction
- highere0
- Value
- 1.9e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early yields of treatments B, BRCP, BRWP, BRA and BRK were 2.1, 1.9, 2.6, 1.9 and 2.4 times higher than the control, which yielded 10 t/ha.”
t0“cucumber”
Claim · model-written summary
BRWP increased early cucumber yield 2.6 times over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- BRWPe0
- Outcome
- Early yieldse0
- Direction
- highere0
- Value
- 2.6e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early yields of treatments B, BRCP, BRWP, BRA and BRK were 2.1, 1.9, 2.6, 1.9 and 2.4 times higher than the control, which yielded 10 t/ha.”
t0“cucumber”
Claim · model-written summary
BRA increased early cucumber yield 1.9 times over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- BRAe0
- Outcome
- Early yieldse0
- Direction
- highere0
- Value
- 1.9e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early yields of treatments B, BRCP, BRWP, BRA and BRK were 2.1, 1.9, 2.6, 1.9 and 2.4 times higher than the control, which yielded 10 t/ha.”
t0“cucumber”
Claim · model-written summary
BRK increased early cucumber yield 2.4 times over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- BRKe0
- Outcome
- Early yieldse0
- Direction
- highere0
- Value
- 2.4e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early yields of treatments B, BRCP, BRWP, BRA and BRK were 2.1, 1.9, 2.6, 1.9 and 2.4 times higher than the control, which yielded 10 t/ha.”
t0“cucumber”
Claim · model-written summary
Black mulch raised total yield 9.7 t/ha over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- black polyethylene mulch alone (B)e1
- Outcome
- Total yieldse0
- Direction
- increasede0
- Value
- 9.7e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yields were increased by 9.7, 15.4, 19.8, 14.9 and 20 t/ha, over the control which yielded 104 t/ha.”
e1“black polyethylene mulch alone (B)”
t0“cucumber”
Claim · model-written summary
BRCP raised total yield 15.4 t/ha over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- BRCPe1
- Outcome
- Total yieldse0
- Direction
- increasede0
- Value
- 15.4e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yields were increased by 9.7, 15.4, 19.8, 14.9 and 20 t/ha, over the control which yielded 104 t/ha.”
e1“B plus a clear cover of perforated polyethylene (BRCP)”
t0“cucumber”
Claim · model-written summary
BRWP raised total yield 19.8 t/ha over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- BRWPe1
- Outcome
- Total yieldse0
- Direction
- increasede0
- Value
- 19.8e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yields were increased by 9.7, 15.4, 19.8, 14.9 and 20 t/ha, over the control which yielded 104 t/ha.”
e1“B plus a white cover of perforated polyethylene (BRWP)”
t0“cucumber”
Claim · model-written summary
BRA raised total yield 14.9 t/ha over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- BRAe1
- Outcome
- Total yieldse0
- Direction
- increasede0
- Value
- 14.9e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yields were increased by 9.7, 15.4, 19.8, 14.9 and 20 t/ha, over the control which yielded 104 t/ha.”
e1“B plus an Agribon cover of polypropylene (BRA)”
t0“cucumber”
Claim · model-written summary
BRK raised total yield 20 t/ha over control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- BRKe1
- Outcome
- Total yieldse0
- Direction
- increasede0
- Value
- 20 t/hae0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yields were increased by 9.7, 15.4, 19.8, 14.9 and 20 t/ha, over the control which yielded 104 t/ha.”
e1“B plus a Kimberly farm row cover (BRK)”
t0“cucumber”
Claim · model-written summary
Plant dry-weight increases explained yield changes.
- Taxon
- cucumberCucumis sativust0
- Outcome
- changes in yielde0
- Qualifier
- Increases in plant dry weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increases in plant dry weight explained the changes in yield.”
t0“cucumber”
Claim · model-written summary
Stomatal conductance may partly explain increased photosynthetic rate.
- Taxon
- cucumberCucumis sativust0
- Outcome
- increase in photosynthetic ratee0
- Qualifier
- Stomatal conductancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stomatal conductance may explain in part, the increase in photosynthetic rate, but may not explain yield increase.”
t0“cucumber”
The same questions in other papers
mulching · yield · Cucumis sativus (cucumber)Results differ
49 papers in the same direction as this paper · 4 in the opposite direction · 4 reporting no difference from an alternative
- positive
- no effect
- no effect
54 papers more in this group
See all 58 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.