Abstract
Two field experiments were imposed during the winter seasons of 2012 and 2013 to study the main and interaction effects of spraying humic acid (0, 500, 1000 and 1500 ppm), Salicylic acid (0, 500 and 1000 ppm) and copper (0, 200 and 400 ppm) on vegetative growth and bulbs yield and its components of onion plants cv. Giza 20. The experiments were carried out in the Experimental Station Farm at Abeis, Faculty of Agriculture, Alexandria University. The main effect of spraying humic acid, salicylic acid and copper, irrespective of the concentration used, significantly, increased number of leaves plant-1 and plant height relative to the untreated control. The highest concentration of humic acid, salicylic acid and copper, positively and significantly, increased marketable and total bulbs yield. The second order interaction of humic acid, salicylic acid and copper at the highest concentration was the most effective treatment which gave the best vegetative growth and highest total and marketable bulbs yield.
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Claims 4
Claim · model-written summary
Spraying humic acid, salicylic acid and copper significantly increased leaf number and plant height of onion plants relative to untreated controls, irrespective of concentration.
- Taxon
- onion plants
Allium cepae2 - Material
- Giza 20e2
- Treatment
- spraying humic acid, salicylic acid and coppere1
- Outcome
- number of leaves plant-1 and plant heighte1
- Direction
- increasede1
- Qualifier
- irrespective of the concentration usede1
- Comparator
- untreated controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The main effect of spraying humic acid, salicylic acid and copper, irrespective of the concentration used, significantly, increased number of leaves plant-1 and plant height relative to the untreated control”
e2“bulbs yield and its components of onion plants cv. Giza 20”
Claim · model-written summary
The highest concentration of humic acid, salicylic acid and copper significantly increased marketable and total bulbs yield of onion plants.
- Taxon
- onion plantsAllium cepae2
- Treatment
- highest concentration of humic acid, salicylic acid and coppere3
- Outcome
- marketable and total bulbs yielde3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The highest concentration of humic acid, salicylic acid and copper, positively and significantly, increased marketable and total bulbs yield”
e2“bulbs yield and its components of onion plants cv. Giza 20”
Claim · model-written summary
The second order interaction of humic acid, salicylic acid and copper at the highest concentration gave the best vegetative growth of onion plants.
- Taxon
- onion plantsAllium cepae2
- Treatment
- second order interaction of humic acid, salicylic acid and copper at the highest concentratione4
- Outcome
- vegetative growthe4
- Direction
- beste4
- Qualifier
- the most effective treatmente4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The second order interaction of humic acid, salicylic acid and copper at the highest concentration was the most effective treatment which gave the best vegetative growth and highest total and marketable bulbs yield”
e2“bulbs yield and its components of onion plants cv. Giza 20”
Claim · model-written summary
The second order interaction of humic acid, salicylic acid and copper at the highest concentration gave the highest total and marketable bulbs yield of onion plants.
- Taxon
- onion plantsAllium cepae2
- Treatment
- second order interaction of humic acid, salicylic acid and copper at the highest concentratione4
- Outcome
- total and marketable bulbs yielde4
- Direction
- higheste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The second order interaction of humic acid, salicylic acid and copper at the highest concentration was the most effective treatment which gave the best vegetative growth and highest total and marketable bulbs yield”
e2“bulbs yield and its components of onion plants cv. Giza 20”
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