Abstract
Greenhouse films have traditionally used an absorber of short wavelength UV as a part of the stabilizer package. Replacing or augmenting this with alternative absorbers can broaden the band of UV absorption up to wavelengths of 370 to 380nm and this is the principle used in some greenhouse film for insect and/or fungal control. Plant responses to light spectral quality can be exploited to deliver a range of agronomical desirable end points in protected crops. The work reported here has characterized the response of commercial cucumber cultivars, Hesham F1 and Brengy F1 when grown under diffused Anti Fog UV-Opaque film (THB AF UV-O), clear Anti Fog UV-Opaque film (UV-O), diffused UV-Opaque film (THB UV-O) and polyvinyl chloride (P.V.C). Our results indicated that, diffused Anti Fog UV-Opaque film (THB AF UV-O) significantly increased plant height, number of leaves per plant and the average plant leaf area of both cucumber cultivars when compared to the other plastic covers. The highest total yield and number of fruits per square meter was achieved by cladding greenhouse by diffused Anti Fog UV-Opaque film (THB AF UV-O) one. Meanwhile, the lowest mean values of fruit yield and its components were attained by using polyvinyl chloride (P.V.C)
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Claims 3
Claim · model-written summary
The diffused anti-fog UV-opaque film significantly increased plant height, leaf number and leaf area of cucumber compared with the other plastic covers.
- Taxon
- cucumber
Cucumis sativuse2 - Material
- Hesham F1 and Brengy F1e2
- Treatment
- diffused Anti Fog UV-Opaque film (THB AF UV-O)e1
- Outcome
- plant height, number of leaves per plant and the average plant leaf areae1
- Direction
- significantly increasede1
- Comparator
- the other plastic coverse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“diffused Anti Fog UV-Opaque film (THB AF UV-O) significantly increased plant height, number of leaves per plant and the average plant leaf area of both cucumber cultivars when compared to the other plastic covers”
e2“commercial cucumber cultivars, Hesham F1 and Brengy F1”
Claim · model-written summary
The diffused anti-fog UV-opaque film gave the highest total yield and number of fruits per square meter of cucumber.
- Taxon
- cucumberCucumis sativuse2
- Treatment
- diffused Anti Fog UV-Opaque film (THB AF UV-O)e3
- Outcome
- total yield and number of fruits per square metere3
- Direction
- higheste3
- Setting
- greenhousee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“commercial cucumber cultivars, Hesham F1 and Brengy F1”
e3“The highest total yield and number of fruits per square meter was achieved by cladding greenhouse by diffused Anti Fog UV-Opaque film (THB AF UV-O) one”
Claim · model-written summary
Polyvinyl chloride cover gave the lowest mean fruit yield and yield components of cucumber.
- Taxon
- cucumberCucumis sativuse2
- Treatment
- polyvinyl chloride (P.V.C)e4
- Outcome
- fruit yield and its componentse4
- Direction
- loweste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“commercial cucumber cultivars, Hesham F1 and Brengy F1”
e4“the lowest mean values of fruit yield and its components were attained by using polyvinyl chloride (P.V.C)”
The same questions in other papers
uv · yield · Cucumis sativus (cucumber)Positive and negative results
6 in the opposite direction
- no effect
- no effect
- negative
3 papers more in this group
See all 7 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.