Abstract
One of the most important elements that enhances plant growth, productivity, and development is the integrated the supply of nutrients and growth stimulants in the proper amounts and ratios. Two field experiments were carried out during seasons of 2021/2022 and 2022/2023 at Eastern Experimental Field, Vegetable Crops Department, Faculty of Agriculture, Cairo University, Giza, Egypt to investigate the effects of foliar spray of 6 growth stimulants treatments, humic acid, amino acids, algae extract, micro-elements mixture, moringa extract and ascorbic acid, on growth, productivity, chemical composition and storability of onion plants (Giza 20). This experiment was done in a randomized complete block design with 3 replicates. The results indicated that foliar spray of all growth stimulants exhausted a significant improvement of onion plant height, number of leaves, bulb diameter, neck diameter, total yield, TSS% after one month of storage, activity of antioxidant enzymes, ascorbic acid and total phenolic in both seasons, as compared with control and spraying with humic acid and ascorbic acid gave the highest total yield / feddan. The highest values of average bulb weight were found with foliar spray of humic acid and amino acid in both seasons. Using humic acid in both seasons or amino acids and micro elements treatments in the first season significantly decreased weight loss%, compared to control.
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Claims 11
Claim · model-written summary
All six foliar growth stimulants significantly improved onion height, leaf number, bulb diameter and neck diameter versus control.
- Taxon
- onion
Allium cepae0 - Treatment
- foliar spray of all growth stimulantse0
- Outcome
- onion plant height, number of leaves, bulb diameter, neck diametere0
- Direction
- improvemente0
- Qualifier
- both seasonse0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar spray of all growth stimulants exhausted a significant improvement of onion plant height, number of leaves, bulb diameter, neck diameter, total yield, TSS% after one month of storage, activity of antioxidant enzymes, ascorbic acid and total phenolic in both seasons, as compared with control”
Claim · model-written summary
All foliar growth stimulants significantly improved total onion yield versus control.
- Taxon
- onion
Allium cepae0 - Treatment
- foliar spray of all growth stimulantse0
- Outcome
- total yielde0
- Direction
- improvemente0
- Qualifier
- both seasonse0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar spray of all growth stimulants exhausted a significant improvement of onion plant height, number of leaves, bulb diameter, neck diameter, total yield, TSS% after one month of storage, activity of antioxidant enzymes, ascorbic acid and total phenolic in both seasons, as compared with control”
Claim · model-written summary
All foliar growth stimulants significantly improved onion TSS after one month of storage versus control.
- Taxon
- onion
Allium cepae0 - Treatment
- foliar spray of all growth stimulantse0
- Outcome
- TSS%e0
- Direction
- improvemente0
- Qualifier
- after one month of storagee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar spray of all growth stimulants exhausted a significant improvement of onion plant height, number of leaves, bulb diameter, neck diameter, total yield, TSS% after one month of storage, activity of antioxidant enzymes, ascorbic acid and total phenolic in both seasons, as compared with control”
Claim · model-written summary
All foliar growth stimulants significantly improved onion antioxidant enzyme activity, ascorbic acid and total phenolics versus control.
- Taxon
- onion
Allium cepae0 - Treatment
- foliar spray of all growth stimulantse0
- Outcome
- activity of antioxidant enzymes, ascorbic acid and total phenolice0
- Direction
- improvemente0
- Qualifier
- both seasonse0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar spray of all growth stimulants exhausted a significant improvement of onion plant height, number of leaves, bulb diameter, neck diameter, total yield, TSS% after one month of storage, activity of antioxidant enzymes, ascorbic acid and total phenolic in both seasons, as compared with control”
Claim · model-written summary
Humic acid foliar spray gave the highest onion yield per feddan.
- Taxon
- onion
Allium cepat0 - Treatment
- humic acide0
- Outcome
- total yield / feddane0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“spraying with humic acid and ascorbic acid gave the highest total yield / feddan.”
t0“Onion Plants”
Claim · model-written summary
Ascorbic acid foliar spray gave the highest onion yield per feddan.
- Taxon
- onion
Allium cepat0 - Treatment
- ascorbic acide0
- Outcome
- total yield / feddane0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“spraying with humic acid and ascorbic acid gave the highest total yield / feddan.”
t0“Onion Plants”
Claim · model-written summary
Humic acid produced the highest average onion bulb weight in both seasons.
- Taxon
- onion
Allium cepat0 - Treatment
- foliar spray of humic acide0
- Outcome
- average bulb weighte0
- Direction
- higheste0
- Qualifier
- both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest values of average bulb weight were found with foliar spray of humic acid and amino acid in both seasons.”
t0“Onion Plants”
Claim · model-written summary
Amino acid produced the highest average onion bulb weight in both seasons.
- Taxon
- onion
Allium cepat0 - Treatment
- amino acide0
- Outcome
- average bulb weighte0
- Direction
- higheste0
- Qualifier
- both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest values of average bulb weight were found with foliar spray of humic acid and amino acid in both seasons.”
t0“Onion Plants”
Claim · model-written summary
Humic acid significantly decreased onion weight loss versus control in both seasons.
- Taxon
- onion
Allium cepat0 - Treatment
- humic acide0
- Outcome
- weight loss%e0
- Direction
- decreasede0
- Qualifier
- both seasonse0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Using humic acid in both seasons or amino acids and micro elements treatments in the first season significantly decreased weight loss%, compared to control.”
t0“Onion Plants”
Claim · model-written summary
Amino acids significantly decreased onion weight loss versus control in the first season.
- Taxon
- onion
Allium cepat0 - Treatment
- amino acidse0
- Outcome
- weight loss%e0
- Direction
- decreasede0
- Qualifier
- first seasone0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Using humic acid in both seasons or amino acids and micro elements treatments in the first season significantly decreased weight loss%, compared to control.”
t0“Onion Plants”
Claim · model-written summary
Micro elements significantly decreased onion weight loss versus control in the first season.
- Taxon
- onion
Allium cepat0 - Treatment
- micro elementse0
- Outcome
- weight loss%e0
- Direction
- decreasede0
- Qualifier
- first seasone0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Using humic acid in both seasons or amino acids and micro elements treatments in the first season significantly decreased weight loss%, compared to control.”
t0“Onion Plants”
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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.