Abstract
Pathogenic bacteria ( Erwinia spp.) can have a significant impact on stand establishment and sprout health. These bacteria cause soft rot of the seed piece, which is common in wet spring conditions resulting in great economic loss. Recent studies have demonstrated that the incidence and severity of soft rot can be significantly reduced by increasing tuber calcium. We investigated the influence of seed piece calcium on tuber production. Field growing potato plants were treated with supplemental calcium during tuber bulking (calcium at 168 kg·ha –1 from calcium nitrate or N-Hib) to increase the seed tuber medullary calcium levels. All three cultivars (`Superior', `Atlantic', `Dark Red Norland') responded to supplemental calcium application with increases in mean calcium contents, even though soil tests showed high native calcium levels (1000 kg·ha –1 ). Seed tubers were sampled for calcium by removing a longitudinal slice from the center of each tuber and planting one of the resulting halves for seed piece decay evaluation and the other for yield evaluation. Calcium nitrate-treated seed tubers produced higher yields compared to ammonium nitrate and N-Hib in `Atlantic' in `Dark Red Norland'. This trend did not hold true for `Superior'. Our results suggest that a) it is possible to increase seed piece tuber calcium levels with supplemental calcium application even in soils testing high in calcium and b) improving the calcium concentration of the seed piece can increase tuber yield in some cultivars.
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Claims 4
Claim · model-written summary
Calcium nitrate-treated seed tubers gave higher yields than ammonium nitrate and N-Hib in Atlantic potato.
- Taxon
- potato plants
Solanum tuberosume0 - Material
- Atlantice1
- Treatment
- Calcium nitrate-treated seed tuberse1
- Outcome
- yieldse1
- Direction
- highere1
- Comparator
- ammonium nitrate and N-Hibe1
- Setting
- Fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field growing potato plants were treated with supplemental calcium during tuber bulking”
e1“Calcium nitrate-treated seed tubers produced higher yields compared to ammonium nitrate and N-Hib in `Atlantic' in `Dark Red Norland'”
Claim · model-written summary
Calcium nitrate-treated seed tubers gave higher yields than ammonium nitrate and N-Hib in Dark Red Norland potato.
- Taxon
- potato plantsSolanum tuberosume0
- Material
- Dark Red Norlande1
- Treatment
- Calcium nitrate-treated seed tuberse1
- Outcome
- yieldse1
- Direction
- highere1
- Comparator
- ammonium nitrate and N-Hibe1
- Setting
- Fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field growing potato plants were treated with supplemental calcium during tuber bulking”
e1“Calcium nitrate-treated seed tubers produced higher yields compared to ammonium nitrate and N-Hib in `Atlantic' in `Dark Red Norland'”
Claim · model-written summary
The calcium nitrate yield advantage did not hold for Superior potato.
- Taxon
- potato plantsSolanum tuberosume0
- Material
- Superiore2
- Treatment
- Calcium nitrate-treated seed tuberse1
- Outcome
- yieldse1
- Direction
- did not hold truee2
- Comparator
- ammonium nitrate and N-Hibe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field growing potato plants were treated with supplemental calcium during tuber bulking”
e1“Calcium nitrate-treated seed tubers produced higher yields compared to ammonium nitrate and N-Hib in `Atlantic' in `Dark Red Norland'”
e2“This trend did not hold true for `Superior'”
Claim · model-written summary
Improving seed piece calcium concentration can increase tuber yield in some potato cultivars.
- Taxon
- potato plantsSolanum tuberosume0
- Treatment
- improving the calcium concentration of the seed piecee4
- Outcome
- tuber yielde4
- Direction
- increasee4
- Qualifier
- in some cultivarse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field growing potato plants were treated with supplemental calcium during tuber bulking”
e4“improving the calcium concentration of the seed piece can increase tuber yield in some cultivars”
The same questions in other papers
calcium atom · yield · Solanum tuberosum (potato)Results differ
15 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
14 papers more in this group
See all 18 papers →nitrogen · yield · Solanum tuberosum (potato)Results differ
108 papers in the same direction as this paper · 20 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- negative
- negative
128 papers more in this group
See all 132 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.