Abstract
A 3-year study on the effects of growth stimulants on yield, bulb size, bulb quality, and storability of short-day onions ( Allium cepa L.) was conducted at three locations. Treatments included 2-hydroxypropanoic acid, humic acids, humic acids in conjunction with micronutrients, and two formulations of cytokinin applied as a transplant dip and/or plant spray. There were no differences between 2-hydroxypropanoic acid and an untreated check at two different farm locations for onion yield, equatorial bulb diameter, or percent jumbos [≥3 inches (≥7.6 cm)] in 1997. Comparisons between untreated checks, 2-hydroxypropanoic acid, humic acids as a transplant dip or plant spray, and humic acids with micronutrients, all applied as transplant dip or plant spray, indicated there were no differences among treatments for yield, pungency, soluble solids, equatorial bulb diameter, or percent marketable bulbs after 6 months in controlled atmosphere storage in 1997-98. In a final experiment, these treatments were evaluated in a factorial arrangement using the short-day onion cultivar Pegasus and a mixture of cultivars WI-609 and WI-3115, which are referred to as Wannamaker cultivar mix. `Pegasus' displayed higher yield and lower soluble solids than the Wannamaker cultivar mix. Treatment with humic acids and micronutrients, or cytokinins resulted in greater percent marketable bulbs after 4.5 months of controlled atmosphere storage compared to the untreated check. No differences were observed among the treatments for pungency or bulb size. In addition, there was no treatment by cultivar interaction.
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Claims 9
Claim · model-written summary
2-hydroxypropanoic acid did not differ from an untreated check in onion yield, equatorial bulb diameter or percent jumbos at two farm locations in 1997.
- Taxon
- onion
Allium cepae1 - Treatment
- 2-hydroxypropanoic acide1
- Outcome
- onion yield, equatorial bulb diameter, or percent jumbose1
- Direction
- no differencese1
- Comparator
- untreated checke1
- Setting
- two different farm locationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“There were no differences between 2-hydroxypropanoic acid and an untreated check at two different farm locations for onion yield, equatorial bulb diameter, or percent jumbos”
Claim · model-written summary
Growth stimulant treatments did not differ in onion yield, pungency or soluble solids after 6 months of controlled atmosphere storage.
- Taxon
- onionAllium cepae1
- Treatment
- treatmentse2
- Outcome
- yield, pungency, soluble solidse2
- Direction
- no differencese2
- Qualifier
- after 6 months in controlled atmosphere storage in 1997-98e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“There were no differences between 2-hydroxypropanoic acid and an untreated check at two different farm locations for onion yield, equatorial bulb diameter, or percent jumbos”
e2“indicated there were no differences among treatments for yield, pungency, soluble solids, equatorial bulb diameter, or percent marketable bulbs after 6 months in controlled atmosphere storage in 1997-98”
Claim · model-written summary
Growth stimulant treatments did not differ in equatorial bulb diameter or percent marketable bulbs after 6 months of controlled atmosphere storage.
- Taxon
- onionAllium cepae1
- Treatment
- treatmentse2
- Outcome
- equatorial bulb diameter, or percent marketable bulbse2
- Direction
- no differencese2
- Qualifier
- after 6 months in controlled atmosphere storage in 1997-98e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“There were no differences between 2-hydroxypropanoic acid and an untreated check at two different farm locations for onion yield, equatorial bulb diameter, or percent jumbos”
e2“indicated there were no differences among treatments for yield, pungency, soluble solids, equatorial bulb diameter, or percent marketable bulbs after 6 months in controlled atmosphere storage in 1997-98”
Claim · model-written summary
Pegasus onion cultivar had higher yield than the Wannamaker cultivar mix.
- Taxon
- onionAllium cepae4
- Material
- Pegasuse3
- Outcome
- yielde3
- Direction
- highere3
- Comparator
- Wannamaker cultivar mixe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Pegasus' displayed higher yield and lower soluble solids than the Wannamaker cultivar mix”
e4“the short-day onion cultivar Pegasus”
Claim · model-written summary
Pegasus onion cultivar had lower soluble solids than the Wannamaker cultivar mix.
- Taxon
- onionAllium cepae4
- Material
- Pegasuse3
- Outcome
- soluble solidse3
- Direction
- lowere3
- Comparator
- Wannamaker cultivar mixe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Pegasus' displayed higher yield and lower soluble solids than the Wannamaker cultivar mix”
e4“the short-day onion cultivar Pegasus”
Claim · model-written summary
Humic acids with micronutrients increased percent marketable onion bulbs after 4.5 months of controlled atmosphere storage compared with the untreated check.
- Taxon
- onionAllium cepae4
- Treatment
- humic acids and micronutrientse5
- Outcome
- percent marketable bulbse5
- Direction
- greatere5
- Qualifier
- after 4.5 months of controlled atmosphere storagee5
- Comparator
- untreated checke5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“the short-day onion cultivar Pegasus”
e5“Treatment with humic acids and micronutrients, or cytokinins resulted in greater percent marketable bulbs after 4.5 months of controlled atmosphere storage compared to the untreated check”
Claim · model-written summary
Cytokinins increased percent marketable onion bulbs after 4.5 months of controlled atmosphere storage compared with the untreated check.
- Taxon
- onionAllium cepae4
- Treatment
- cytokininse5
- Outcome
- percent marketable bulbse5
- Direction
- greatere5
- Qualifier
- after 4.5 months of controlled atmosphere storagee5
- Comparator
- untreated checke5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“the short-day onion cultivar Pegasus”
e5“Treatment with humic acids and micronutrients, or cytokinins resulted in greater percent marketable bulbs after 4.5 months of controlled atmosphere storage compared to the untreated check”
Claim · model-written summary
Among the treatments, no differences were observed in onion pungency or bulb size.
- Taxon
- onionAllium cepae4
- Treatment
- treatmentse6
- Outcome
- pungency or bulb sizee6
- Direction
- No differencese6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“the short-day onion cultivar Pegasus”
e6“No differences were observed among the treatments for pungency or bulb size”
Claim · model-written summary
There was no treatment by cultivar interaction in onion.
- Taxon
- onionAllium cepae4
- Outcome
- treatment by cultivar interactione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“the short-day onion cultivar Pegasus”
e7“there was no treatment by cultivar interaction”
The same questions in other papers
micronutrient · quality: postharvest · Allium cepa (onion)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
class · quality: postharvest · Allium cepa (onion)Results agree
2 papers in the same direction as this paper
- positive
- positive
other · quality: postharvest · Allium cepa (onion)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
7 papers more in this group
See all 11 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.