Abstract
Our study analyzed the effect of foliar tissues and seed tissue for determining the micronutrient status of a crop. Zinc (Zn) requirements of onion (Allium cepa L.) leaves and seeds were estimated from yield response curves based on field experiment conducted on a Zn-deficient calcareous soil. Three onion cultivars, i.e., ‘Swat-1’, ‘Phulkara’, and ‘Sariab Red’ were grown by applying 0, 2, 4, 8, and 16 kg Zn ha−1. Zinc application significantly increased seed yield of all the three cultivars of onion. The order of seed yield response to Zn fertilization was: ‘Swat-1’ < ‘Phulkara’ < ‘Sariab Red’. Fertilizer Zn requirement for near-maximum seed yield was 2 kg Zn ha−1. Zinc concentration in mature onion seed also appeared to be a good indicator of soil Zn availability status. Critical Zn concentration in seed was 18 mg Zn kg−1, and in matured leaves was 21 mg kg−1.
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Claims 6
Claim · model-written summary
Zinc application significantly increased seed yield of all three onion cultivars in a field experiment.
- Taxon
- onion
Allium cepae1 - Material
- all the three cultivarse1
- Treatment
- Zinc applicatione1
- Outcome
- seed yielde1
- Direction
- increasede1
- Setting
- field experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc (Zn) requirements of onion (Allium cepa L.) leaves and seeds were estimated from yield response curves based on field experiment conducted on a Zn-deficient calcareous soil”
e1“Zinc application significantly increased seed yield of all the three cultivars of onion”
Claim · model-written summary
The order of seed yield response to Zn fertilization among the onion cultivars was Swat-1 < Phulkara < Sariab Red.
- Taxon
- onionAllium cepae1
- Material
- ‘Swat-1’ < ‘Phulkara’ < ‘Sariab Red’e2
- Outcome
- order of seed yield response to Zn fertilizatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Zinc application significantly increased seed yield of all the three cultivars of onion”
e2“The order of seed yield response to Zn fertilization was: ‘Swat-1’ < ‘Phulkara’ < ‘Sariab Red’”
Claim · model-written summary
The fertilizer Zn requirement for near-maximum onion seed yield was 2 kg Zn ha−1.
- Taxon
- onionAllium cepae1
- Outcome
- Fertilizer Zn requirement for near-maximum seed yielde3
- Value
- 2 kg Zn ha−1e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Zinc application significantly increased seed yield of all the three cultivars of onion”
e3“Fertilizer Zn requirement for near-maximum seed yield was 2 kg Zn ha−1”
Claim · model-written summary
Zinc concentration in mature onion seed appeared to be an indicator of soil Zn availability status.
- Taxon
- onionAllium cepae1
- Organ / stage
- mature onion seede4
- Outcome
- soil Zn availability statuse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Zinc application significantly increased seed yield of all the three cultivars of onion”
e4“Zinc concentration in mature onion seed also appeared to be a good indicator of soil Zn availability status”
Claim · model-written summary
The critical Zn concentration in onion seed was 18 mg Zn kg−1.
- Taxon
- onionAllium cepae1
- Organ / stage
- seede5
- Outcome
- Critical Zn concentratione5
- Value
- 18 mg Zn kg−1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Zinc application significantly increased seed yield of all the three cultivars of onion”
e5“Critical Zn concentration in seed was 18 mg Zn kg−1, and in matured leaves was 21 mg kg−1”
Claim · model-written summary
The critical Zn concentration in onion leaves was 21 mg kg−1.
- Taxon
- onionAllium cepae1
- Organ / stage
- matured leavese5
- Outcome
- Critical Zn concentratione5
- Value
- 21 mg kg−1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Zinc application significantly increased seed yield of all the three cultivars of onion”
e5“Critical Zn concentration in seed was 18 mg Zn kg−1, and in matured leaves was 21 mg kg−1”
The same questions in other papers
zinc atom · yield · Allium cepa (onion)Results differ
32 papers in the same direction as this paper · 3 in the opposite direction
- positive
- negative
- negative
32 papers more in this group
See all 36 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.