Abstract
Onion maggot (Delia alliaria Fonseca) is an important pest of onion in Iraq, it is responsible for causing serious quantitative and qualitative losses to the onion crops. Nursery and field studies were conducted at college of Agriculture, Abu Ghraib, Iraq to evaluate the effects of sowing date and plant density on onion infestation with onion maggot. Onion seeds were sowing in nursery at three dates viz 5th & 20th September and 3 rd October, 2010 with two plants density i.e. 10seed/2m2 and 15 seeds /2m2. From Nursery, the plants were transplanted to the field at three dates viz 14th & 24th December, 2010 and 3 rd January, 2011 with two density i.e. 10seed/2m2 and 15 seeds /2m2 with 10 cm and 6 cm plant spacing. Result of the study showed that the lowest infestation of onion maggot was manifested at the lower plants density and first date of cultivation at both nursery and field level. At nursery level 6.16, 6.83 and 7.50 % infestation was reported for three dates of showing respectively at 10g seeds / 2 m2 while this infestation was 8.61, 7.50 and 11.5 % respectively for the three sowing dates at 15 g/2 m2 densities. Similar types of results were reported in the field study but with slightly higher infestation, here 8.81, 12.54 and 14.04 % infestation was reported on the three plantings dates at 10 cm plant spacing respectively while this infestation was much higher 12.13, 16.81 and 19.04 % respectively for three sowing dates on the 6 cm plant spacing. Higher yield was obtained from the plants of the 1 st date of sowing for both the plant densities with best quality. The mean bulb weights were 252.90, 228.30 and 172.00g for the plants growing at 10 cm spacing while this weights was 213.5 , 167.0 and 153.7 g for the plants growing at 6 cm spacing for all the three dates of cultivation respectively. Results of the study revealed that cultivation onion at early date with suitable spaces between the plants may be promising to manage the infestation with onion maggot.
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Claims 10
Claim · model-written summary
Lower planting density and the first cultivation date gave the lowest onion maggot infestation in nursery and field.
- Taxon
- onion
Allium cepae1 - Treatment
- lower plants density and first date of cultivatione0
- Interactor
- onion maggot
Delia antiquae0pest - Outcome
- infestation of onion maggote0
- Direction
- loweste0
- Setting
- nursery and fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest infestation of onion maggot was manifested at the lower plants density and first date of cultivation at both nursery and field level”
e1“pest of onion in Iraq”
Claim · model-written summary
Nursery onion maggot infestation at 10 g seed density was 6.16%, 6.83% and 7.50% across the three sowing dates.
- Taxon
- onionAllium cepae1
- Treatment
- 10g seeds / 2 m2e0
- Interactor
- onion maggotDelia antiquae2pest
- Outcome
- infestatione0
- Value
- 6.16, 6.83 and 7.50 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At nursery level 6.16, 6.83 and 7.50 % infestation was reported for three dates of showing respectively at 10g seeds / 2 m2”
e1“pest of onion in Iraq”
e2“infestation of onion maggot”
Claim · model-written summary
Nursery infestation at the higher seed density was 8.61%, 7.50% and 11.5% across sowing dates.
- Taxon
- onionAllium cepae1
- Treatment
- 15 g/2 m2 densitiese0
- Interactor
- onion maggotDelia antiquae2pest
- Outcome
- infestatione0
- Value
- 8.61, 7.50 and 11.5 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this infestation was 8.61, 7.50 and 11.5 % respectively for the three sowing dates at 15 g/2 m2 densities”
e1“pest of onion in Iraq”
e2“infestation of onion maggot”
Claim · model-written summary
Field infestation at 10 cm spacing was 8.81%, 12.54% and 14.04% across planting dates.
- Taxon
- onionAllium cepae1
- Treatment
- 10 cm plant spacinge0
- Interactor
- onion maggotDelia antiquae2pest
- Outcome
- infestatione0
- Value
- 8.81, 12.54 and 14.04 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“8.81, 12.54 and 14.04 % infestation was reported on the three plantings dates at 10 cm plant spacing”
e1“pest of onion in Iraq”
e2“infestation of onion maggot”
Claim · model-written summary
Field infestation at 6 cm spacing was 12.13%, 16.81% and 19.04% across planting dates.
- Taxon
- onionAllium cepae1
- Treatment
- 6 cm plant spacinge0
- Interactor
- onion maggotDelia antiquae2pest
- Outcome
- infestatione0
- Direction
- much highere0
- Value
- 12.13, 16.81 and 19.04 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this infestation was much higher 12.13, 16.81 and 19.04 % respectively for three sowing dates on the 6 cm plant spacing”
e1“pest of onion in Iraq”
e2“infestation of onion maggot”
Claim · model-written summary
The first onion sowing date gave higher yield at both planting densities.
- Taxon
- onionAllium cepae1
- Treatment
- 1 st date of sowinge0
- Outcome
- yielde0
- Direction
- Highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher yield was obtained from the plants of the 1 st date of sowing for both the plant densities”
e1“pest of onion in Iraq”
Claim · model-written summary
The first onion sowing date gave the best quality at both planting densities.
- Taxon
- onionAllium cepae1
- Treatment
- 1 st date of sowinge0
- Outcome
- qualitye0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher yield was obtained from the plants of the 1 st date of sowing for both the plant densities with best quality”
e1“pest of onion in Iraq”
Claim · model-written summary
At 10 cm spacing, mean onion bulb weights were 252.90, 228.30 and 172.00g across planting dates.
- Taxon
- onionAllium cepae1
- Treatment
- 10 cm spacinge0
- Outcome
- mean bulb weightse0
- Value
- 252.90, 228.30 and 172.00ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean bulb weights were 252.90, 228.30 and 172.00g for the plants growing at 10 cm spacing”
e1“pest of onion in Iraq”
Claim · model-written summary
At 6 cm spacing, mean onion bulb weights were 213.5, 167.0 and 153.7 g across planting dates.
- Taxon
- onionAllium cepae1
- Treatment
- 6 cm spacinge0
- Outcome
- weightse0
- Value
- 213.5 , 167.0 and 153.7 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this weights was 213.5 , 167.0 and 153.7 g for the plants growing at 6 cm spacing”
e1“pest of onion in Iraq”
Claim · model-written summary
Early onion cultivation with suitable spacing was recommended to manage onion maggot infestation.
- Taxon
- onionAllium cepae0
- Interactor
- onion maggotDelia antiquae0pest
- Outcome
- cultivation onion at early date with suitable spaces between the plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivation onion at early date with suitable spaces between the plants may be promising to manage the infestation with onion maggot”
The same questions in other papers
sowing time · yield · Allium cepa (onion)Positive and negative results
17 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- negative
23 papers more in this group
See all 27 papers →sowing time · quality: general · Allium cepa (onion)Results agree
2 papers in the same direction as this paper
- 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.