Abstract
The present investigation was carried out during the two successive seasons of 2018/2019 and 2019/2020 at Abo El-Matameer, Behairah Governorate, Egypt to study the effect of seven treatments a foliar application, i.e. control (spray with water only), dry yeast at 2g/L, dry yeast at 4 g/L, urea at 0.5%, urea at 1.0%, urea at 1.5%, and urea at 2% on growth, yield and chemical content of lettuce plants. The experiment was arranged in a randomized complete blocks design in three replications. The obtained results are summarized as follows: Using urea and dry yeast extract levels as a foliar spray on vegetative growth characters, i.e. root length, head length, number of leaves/head, length and width of leaf, diameter of head , fresh and dry weight of head, pigments content ,chemical contents and head yield of lettuce and its components were significantly increased compared to the control treatment. The highest values of these characters of lettuce were recorded by using 1% urea, in both growing seasons. This treatment was followed by the treatments of dry yeast extract at 4 g/L, dry yeast extract at 2 g/L, and urea at 0.5%, respectively. Conclusively: It can be concluded that the treatment of 1% urea gave the best results on all characters of head lettuce.
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Claims 8
Claim · model-written summary
Foliar urea and dry yeast extract significantly increased lettuce root and head length, leaf number, leaf dimensions, and head diameter compared with water spray.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- urea and dry yeast extract levels as a foliar spraye0
- Outcome
- root length, head length, number of leaves/head, length and width of leaf, diameter of heade0
- Direction
- increasede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using urea and dry yeast extract levels as a foliar spray on vegetative growth characters, i.e. root length, head length, number of leaves/head, length and width of leaf, diameter of head , fresh and dry weight of head, pigments content ,chemical contents and head yield of lettuce and its components were significantly increased compared to the control treatment.”
Claim · model-written summary
Foliar urea and dry yeast extract significantly increased lettuce head fresh and dry weight and head yield compared with the control.
- Taxon
- lettuceLactuca sativae0
- Treatment
- urea and dry yeast extract levels as a foliar spraye0
- Outcome
- fresh and dry weight of head, pigments content ,chemical contents and head yield of lettuce and its componentse0
- Direction
- increasede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using urea and dry yeast extract levels as a foliar spray on vegetative growth characters, i.e. root length, head length, number of leaves/head, length and width of leaf, diameter of head , fresh and dry weight of head, pigments content ,chemical contents and head yield of lettuce and its components were significantly increased compared to the control treatment.”
Claim · model-written summary
Foliar urea and dry yeast extract significantly increased lettuce pigment and chemical contents compared with the control.
- Taxon
- lettuceLactuca sativae0
- Treatment
- urea and dry yeast extract levels as a foliar spraye0
- Outcome
- pigments content ,chemical contentse0
- Direction
- increasede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using urea and dry yeast extract levels as a foliar spray on vegetative growth characters, i.e. root length, head length, number of leaves/head, length and width of leaf, diameter of head , fresh and dry weight of head, pigments content ,chemical contents and head yield of lettuce and its components were significantly increased compared to the control treatment.”
Claim · model-written summary
The 1% urea treatment gave the highest values for the reported lettuce characters in both seasons.
- Taxon
- lettuceLactuca sativae0
- Treatment
- 1% ureae0
- Outcome
- highest values of these characterse0
- Direction
- higheste0
- Qualifier
- both growing seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest values of these characters of lettuce were recorded by using 1% urea, in both growing seasons.”
Claim · model-written summary
Dry yeast extract at 4 g/L ranked after 1% urea for the reported lettuce characters.
- Taxon
- LETTUCELactuca sativat0
- Treatment
- dry yeast extract at 4 g/Le0
- Outcome
- followede0
- Direction
- followede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment was followed by the treatments of dry yeast extract at 4 g/L, dry yeast extract at 2 g/L, and urea at 0.5%, respectively.”
t0“HEAD LETTUCE”
Claim · model-written summary
Dry yeast extract at 2 g/L ranked after dry yeast extract at 4 g/L for the reported lettuce characters.
- Taxon
- LETTUCELactuca sativat0
- Treatment
- dry yeast extract at 2 g/Le0
- Outcome
- followede0
- Direction
- followede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment was followed by the treatments of dry yeast extract at 4 g/L, dry yeast extract at 2 g/L, and urea at 0.5%, respectively.”
t0“HEAD LETTUCE”
Claim · model-written summary
Urea at 0.5% ranked after dry yeast extract at 2 g/L for the reported lettuce characters.
- Taxon
- LETTUCELactuca sativat0
- Treatment
- urea at 0.5%e0
- Outcome
- followede0
- Direction
- followede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment was followed by the treatments of dry yeast extract at 4 g/L, dry yeast extract at 2 g/L, and urea at 0.5%, respectively.”
t0“HEAD LETTUCE”
Claim · model-written summary
The authors concluded that 1% urea gave the best results for all head lettuce characters.
Verbatim
e0“the treatment of 1% urea gave the best results on all characters of head lettuce.”
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