Abstract
Effect of plant density and bulb size on yield and quality of shallot. Shallot planting material of tree different qualities (based on diameter of bulb) were planted at four different plant densities (25, 44, 100 and 178 bulbs/square m) on alluvial soil in Kramat in the dry season of 1990. A completely randomized block design with four replications was used. Total yield per plot was highest in case of large bulbs planted at the highest plant density, but 74 percent of the harvest consisted of small bulbs with a diameter less than 1 cm. Planting distance had a significant effect on the composition of the harvest. A low plant density resulted in a higher percentage large bulbs, although total yield per area was lower. The size of the bulbs planted had no effect on the composition of the harvest, but large bulbs developed more bulbs per plant, which resulted in a higher total yield. An economic analysis with various prices for seed and consumption shallots showed an optimum plant density with the highest grass margin of about 50 plants/square m. In case small bulbs fetch relative low price, lower plant densities of about 25 plants/square m will be optimum. In general the best quality bulbs for planting are medium sized bulbs.
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Claims 11
Claim · model-written summary
Large bulbs at the highest density gave the highest yield per plot.
- Taxon
- shallot
Allium cepa var. aggregatumt0 - Treatment
- large bulbs planted at the highest plant densitye0
- Outcome
- Total yield per plote0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yield per plot was highest in case of large bulbs planted at the highest plant density”
t0“shallot”
Claim · model-written summary
At that combination, 74 percent of harvested bulbs were smaller than 1 cm.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Outcome
- harvest consisted of small bulbse0
- Value
- 74 percente0
- Qualifier
- diameter less than 1 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but 74 percent of the harvest consisted of small bulbs with a diameter less than 1 cm.”
t0“shallot”
Claim · model-written summary
Planting distance significantly changed the composition of the harvest.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Treatment
- Planting distancee0
- Outcome
- composition of the harveste0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Planting distance had a significant effect on the composition of the harvest.”
t0“shallot”
Claim · model-written summary
Low density increased the percentage of large bulbs.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Treatment
- low plant densitye0
- Outcome
- percentage large bulbse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A low plant density resulted in a higher percentage large bulbs”
t0“shallot”
Claim · model-written summary
Low density reduced total yield per area.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Treatment
- low plant densitye0
- Outcome
- total yield per areae0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A low plant density resulted in a higher percentage large bulbs, although total yield per area was lower”
t0“shallot”
Claim · model-written summary
Planted bulb size did not affect harvest composition.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Treatment
- size of the bulbs plantede0
- Outcome
- composition of the harveste0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The size of the bulbs planted had no effect on the composition of the harvest”
t0“shallot”
Claim · model-written summary
Large seed bulbs developed more bulbs per plant.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Treatment
- large bulbse0
- Outcome
- bulbs per plante0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“large bulbs developed more bulbs per plant”
t0“shallot”
Claim · model-written summary
Large seed bulbs gave higher total yield.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Treatment
- large bulbse0
- Outcome
- total yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“large bulbs developed more bulbs per plant, which resulted in a higher total yield”
t0“shallot”
Claim · model-written summary
Economic analysis identified about 50 plants per square metre as optimal for gross margin.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Outcome
- grass margine0
- Direction
- higheste0
- Value
- about 50 plants/square me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an optimum plant density with the highest grass margin of about 50 plants/square m”
t0“shallot”
Claim · model-written summary
When small bulbs fetch a relatively low price, about 25 plants per square metre is optimal.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Outcome
- lower plant densities of about 25 plants/square me0
- Qualifier
- small bulbs fetch relative low pricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In case small bulbs fetch relative low price, lower plant densities of about 25 plants/square m will be optimum.”
t0“shallot”
Claim · model-written summary
Medium sized bulbs are recommended for planting.
- Taxon
- shallotAllium cepa var. aggregatumt0
- Outcome
- medium sized bulbse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general the best quality bulbs for planting are medium sized bulbs.”
t0“shallot”
The same questions in other papers
density · yield · Allium cepa (onion)Positive and negative results
47 papers in the same direction as this paper · 6 in the opposite direction
- negative
- no effect
- negative
50 papers more in this group
See all 54 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.