Abstract
Abstract A single preharvest spray of gibberellic acid (GA 3 ), alone or with the cytokinin, isopentenyladenine (IPA), retarded leaf yellowing, and, to a lesser extent, leaf rot of romaine lettuce ( Lactuca sativa L. ‘Hazera Yellow’). The most effective spray was 10 ppm GA 3 plus 0.1 ppm IPA. Effects of 1 ppm GA 3 together with 0.1 ppm IPA were similar to those of 25 ppm GA 3 and were always superior to the controls (water-sprayed). Lettuce sprayed by the hormones and packed in polyethylene (PE) liners remained green and sound longer than that either sprayed or packaged.
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Claims 6
Claim · model-written summary
Preharvest gibberellic acid alone or with isopentenyladenine retarded lettuce leaf yellowing.
- Taxon
- Lactuca sativa L.
Lactuca sativae0 - Treatment
- gibberellic acid (GA 3 ), alone or with the cytokinin, isopentenyladenine (IPA)e0
- Outcome
- leaf yellowinge0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A single preharvest spray of gibberellic acid (GA 3 ), alone or with the cytokinin, isopentenyladenine (IPA), retarded leaf yellowing, and, to a lesser extent, leaf rot of romaine lettuce ( Lactuca sativa L. ‘Hazera Yellow’)”
Claim · model-written summary
The hormone spray retarded lettuce leaf rot to a lesser extent.
- Taxon
- Lactuca sativa L.Lactuca sativae0
- Treatment
- gibberellic acid (GA 3 ), alone or with the cytokinin, isopentenyladenine (IPA)e0
- Outcome
- leaf rote0
- Direction
- retardede0
- Qualifier
- to a lesser extente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A single preharvest spray of gibberellic acid (GA 3 ), alone or with the cytokinin, isopentenyladenine (IPA), retarded leaf yellowing, and, to a lesser extent, leaf rot of romaine lettuce ( Lactuca sativa L. ‘Hazera Yellow’)”
Claim · model-written summary
The most effective spray was 10 ppm GA 3 plus 0.1 ppm IPA.
- Taxon
- Lactuca sativa L.Lactuca sativae0
- Treatment
- 10 ppm GA 3 plus 0.1 ppm IPAe1
- Outcome
- most effective spraye1
- Direction
- most effectivee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“romaine lettuce ( Lactuca sativa L. ‘Hazera Yellow’)”
e1“The most effective spray was 10 ppm GA 3 plus 0.1 ppm IPA”
Claim · model-written summary
The 1 ppm GA 3 with 0.1 ppm IPA treatment was similar to 25 ppm GA 3.
- Taxon
- Lactuca sativa L.Lactuca sativae0
- Treatment
- 1 ppm GA 3 together with 0.1 ppm IPAe1
- Outcome
- Effectse1
- Direction
- similare1
- Comparator
- 25 ppm GA 3e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“romaine lettuce ( Lactuca sativa L. ‘Hazera Yellow’)”
e1“Effects of 1 ppm GA 3 together with 0.1 ppm IPA were similar to those of 25 ppm GA 3”
Claim · model-written summary
The 1 ppm GA 3 plus 0.1 ppm IPA treatment was superior to water-sprayed controls.
- Taxon
- Lactuca sativa L.Lactuca sativae0
- Treatment
- 1 ppm GA 3 together with 0.1 ppm IPAe1
- Outcome
- superiore1
- Direction
- superiore1
- Comparator
- controls (water-sprayed)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“romaine lettuce ( Lactuca sativa L. ‘Hazera Yellow’)”
e1“Effects of 1 ppm GA 3 together with 0.1 ppm IPA were similar to those of 25 ppm GA 3 and were always superior to the controls (water-sprayed)”
Claim · model-written summary
Hormone spraying with polyethylene liners kept lettuce green and sound longer than either treatment alone.
- Taxon
- LettuceLactuca sativae0
- Treatment
- sprayed by the hormones and packed in polyethylene (PE) linerse0
- Outcome
- remained green and sounde0
- Direction
- longere0
- Comparator
- either sprayed or packagede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lettuce sprayed by the hormones and packed in polyethylene (PE) liners remained green and sound longer than that either sprayed or packaged”
The same questions in other papers
class · disease · Lactuca sativa (garden lettuce)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.