Abstract
Appropriate spacing enables the farmers to keep appropriate plant population in the field. Hence, it can avoid over or less population in a given plot of land which has negative effect on yield and quality of onion. Spacing of 40 × 20 × 10 cm between furrow, row and plants, respectively has been used for onion production in Ethiopia. But producers complain 10 cm intra row spacing produces large bulb size which is not preferred by consumer for home consumption. To optimize onion productivity, full package of information is required. To fill this gap field experiment was conducted to study the effect of inter and intra row spacing on the bulb yield and yield components of onion at Ribb in Fogera, Woramit in Bahir Dar and Koga in Mecha districts in 2014. The interaction of the lowest inter and intra row spacing mature earlier by 15 days compared to highest inter and intra row spacing. Forty nine percent of medium sized bulbs were produced with the interaction of 15 and 6 cm inter and intra row spacing while only 32% of medium sized bulbs were produced by the interaction of 25 and 8 cm inter and intra row spacing. Small sized bulb distribution decreased as intra row spacing increased while large bulb sized distribution increased when intra row spacing increased. The highest bulb weight (102 g) was produced by the interaction of highest inter and intra row spacing while the lowest bulb weight (45 g) was produced by the lowest inter and intra row spacing. Interaction of inter and intra row spacing of 15 and 4 cm respectively, scored the 1st highest marketable bulb yield (39 ton ha-1) and interaction of 15 and 6 cm inter and intra row spacing scored the 2st highest marketable bulb yield (36 ton ha-1). The result revealed that the earlier recommendation (20 and 10 cm inter and intra row spacing) produced more number of medium and large sized bulbs with a yield penalty of 8.0 and 10 ton per ha-1 compared to interaction of inter row spacing of 15 cm with intra row spacing of 6 and 4 cm, respectively. Therefore, the interaction of inter and intra row spacing of 15 with 6 cm is recommended as a first option for producers who wishes to produce maximum bulb yield with maximum medium sized bulbs. It is also confirmed that earlier recommendation is better as a second option for producers who wishes to produce for export market which requires medium and large sized bulbs of onion. Key words: Onion, inter, intra, spacing, bulb, yield.
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Claims 11
Claim · model-written summary
The closest inter and intra row spacing matured 15 days earlier than the widest spacing.
- Taxon
- onion
Allium cepat0 - Treatment
- lowest inter and intra row spacinge0
- Outcome
- maturee0
- Direction
- earliere0
- Value
- 15 dayse0
- Comparator
- highest inter and intra row spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“The interaction of the lowest inter and intra row spacing mature earlier by 15 days compared to highest inter and intra row spacing.”
Claim · model-written summary
The 15 and 6 cm spacing produced 49% medium bulbs versus 32% with 25 and 8 cm.
- Taxon
- onionAllium cepat0
- Treatment
- 15 and 6 cm inter and intra row spacinge0
- Outcome
- medium sized bulbse0
- Direction
- Forty nine percente0
- Qualifier
- only 32%e0
- Comparator
- 25 and 8 cm inter and intra row spacinge0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“Forty nine percent of medium sized bulbs were produced with the interaction of 15 and 6 cm inter and intra row spacing while only 32% of medium sized bulbs were produced by the interaction of 25 and 8 cm inter and intra row spacing.”
Claim · model-written summary
Small bulb frequency decreased as intra row spacing increased.
- Taxon
- onionAllium cepat0
- Treatment
- intra row spacinge0
- Outcome
- Small sized bulb distributione0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“Small sized bulb distribution decreased as intra row spacing increased”
Claim · model-written summary
Large bulb frequency increased as intra row spacing increased.
- Taxon
- onionAllium cepat0
- Treatment
- intra row spacinge0
- Outcome
- large bulb sized distributione0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“large bulb sized distribution increased when intra row spacing increased”
Claim · model-written summary
The widest spacing produced the highest bulb weight of 102 g, versus 45 g at the closest spacing.
- Taxon
- onionAllium cepat0
- Treatment
- highest inter and intra row spacinge0
- Outcome
- bulb weighte0
- Direction
- higheste0
- Value
- 102 ge0
- Qualifier
- 45 ge0
- Comparator
- lowest inter and intra row spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“The highest bulb weight (102 g) was produced by the interaction of highest inter and intra row spacing while the lowest bulb weight (45 g) was produced by the lowest inter and intra row spacing.”
Claim · model-written summary
The 15 and 4 cm spacing gave the top marketable bulb yield, 39 ton ha-1.
- Taxon
- onionAllium cepat0
- Treatment
- 15 and 4 cme0
- Outcome
- marketable bulb yielde0
- Direction
- 1st higheste0
- Value
- 39 ton ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“Interaction of inter and intra row spacing of 15 and 4 cm respectively, scored the 1st highest marketable bulb yield (39 ton ha-1)”
Claim · model-written summary
The 15 and 6 cm spacing gave the second marketable yield, 36 ton ha-1.
- Taxon
- onionAllium cepat0
- Treatment
- 15 and 6 cm inter and intra row spacinge0
- Outcome
- marketable bulb yielde0
- Direction
- 2st higheste0
- Value
- 36 ton ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“interaction of 15 and 6 cm inter and intra row spacing scored the 2st highest marketable bulb yield (36 ton ha-1)”
Claim · model-written summary
The earlier 20 and 10 cm recommendation yielded 8.0 ton per ha-1 less than 15 and 6 cm.
- Taxon
- onionAllium cepat0
- Treatment
- 20 and 10 cm inter and intra row spacinge0
- Outcome
- yield penaltye0
- Direction
- penaltye0
- Value
- 8.0e0
- Comparator
- 15 cm with intra row spacing of 6e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“the earlier recommendation (20 and 10 cm inter and intra row spacing) produced more number of medium and large sized bulbs with a yield penalty of 8.0 and 10 ton per ha-1 compared to interaction of inter row spacing of 15 cm with intra row spacing of 6 and 4 cm, respectively”
Claim · model-written summary
The earlier spacing recommendation yielded 10 ton per ha-1 less than 15 and 4 cm.
- Taxon
- onionAllium cepat0
- Outcome
- yield penaltye0
- Direction
- penaltye0
- Value
- 10 ton per ha-1e0
- Comparator
- 15 cm with intra row spacing of 6 and 4 cme0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“a yield penalty of 8.0 and 10 ton per ha-1 compared to interaction of inter row spacing of 15 cm with intra row spacing of 6 and 4 cm, respectively”
Claim · model-written summary
The authors recommend 15 and 6 cm spacing for maximum yield and medium bulb production.
- Taxon
- onionAllium cepat0
- Outcome
- 15 with 6 cm is recommended as a first optione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“the interaction of inter and intra row spacing of 15 with 6 cm is recommended as a first option for producers who wishes to produce maximum bulb yield with maximum medium sized bulbs”
Claim · model-written summary
The earlier recommendation is a second option for export markets requiring medium and large bulbs.
- Taxon
- onionAllium cepat0
- Outcome
- earlier recommendation is better as a second optione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onion (Allium cepa L.)”
e0“earlier recommendation is better as a second option for producers who wishes to produce for export market which requires medium and large sized bulbs of onion”
The same questions in other papers
density · yield · Allium cepa (onion)Positive and negative results
5 papers in the same direction as this paper · 48 in the opposite direction
- positive
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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.