Abstract
Availability of P reserves for seedling growth in germinating oat ( Avena sativa L.) grain is likely to be reduced in comparison with that in other temperate cereals. Environmental concerns have resulted in reduced P and N fertilizer application, which may, with transformation of P into unavailable forms in soil, result in suboptimal P availability especially at seedling growth. A field experiment was arranged with oat cultivars (Belinda, Fiia, and Salo) in main plots and P seed coating in subplots. The experiment was done in 2003 and 2004 at two locations in Finland that differed in soil type and were all low in soil P content. A third experiment also having low soil P content included three cultivation methods (1, control, with 80 kg N and 18 kg P ha −1 and herbicide application; 2, 80 kg N and 18 kg P ha −1 and herbicide application, supplemented with 40 kg sulfur (S) ha −1 ; and 3, 80 kg N and 18 kg P ha −1 and herbicide application, supplemented with 40 kg S ha −1 and fungicide application). It was sown with two oat cultivars (Belinda and Fiia) with and without P seed coating. Seedling emergence, biomass accumulation, relative growth rate, growth duration, grain yield, and 20 plant stand structure traits were measured. Seed coating with P resulted in alterations to many of the recorded plant stand structure traits. All significant changes represented improvements over the control. The effect, however, changed depending on experiment, location, cultivation method, and cultivar. Most often, enhanced biomass accumulation (up to 22%) and grain set (up to 15%) occurred. This was not, however, associated with increased grain yield in any of the experiments, even in cases where biomass and grain yield per unit area were increased by P coating. Small kernels were probably lost during harvest, as in most cases grain weight of hand‐threshed samples was lower (by 8% in average) than that in harvested yield. In conclusion, P seed coating promoted early oat growth without increasing economic yield.
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Claims 5
Claim · model-written summary
P seed coating enhanced biomass accumulation in oat by up to 22% relative to the control.
- Taxon
- Oat
Avena sativat0 - Treatment
- P seed coatinge4
- Outcome
- biomass accumulatione1
- Direction
- enhancede1
- Value
- up to 22%e1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Most often, enhanced biomass accumulation (up to 22%) and grain set (up to 15%) occurred”
e2“All significant changes represented improvements over the control”
e4“In conclusion, P seed coating promoted early oat growth without increasing economic yield”
t0“Phosphorus Seed Coating Enhancement on Early Growth and Yield Components in Oat”
Claim · model-written summary
P seed coating enhanced grain set in oat by up to 15% relative to the control.
- Taxon
- OatAvena sativat0
- Treatment
- P seed coatinge4
- Outcome
- grain sete1
- Direction
- enhancede1
- Value
- up to 15%e1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Most often, enhanced biomass accumulation (up to 22%) and grain set (up to 15%) occurred”
e2“All significant changes represented improvements over the control”
e4“In conclusion, P seed coating promoted early oat growth without increasing economic yield”
t0“Phosphorus Seed Coating Enhancement on Early Growth and Yield Components in Oat”
Claim · model-written summary
P seed coating was not associated with increased grain yield in any experiment, even where biomass and grain yield per unit area rose.
- Taxon
- oatAvena sativae4
- Treatment
- P seed coatinge4
- Outcome
- grain yielde3
- Direction
- associated with increasede3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“This was not, however, associated with increased grain yield in any of the experiments, even in cases where biomass and grain yield per unit area were increased by P coating”
e2“All significant changes represented improvements over the control”
e4“In conclusion, P seed coating promoted early oat growth without increasing economic yield”
Claim · model-written summary
P seed coating promoted early oat growth.
- Taxon
- oatAvena sativae4
- Treatment
- P seed coatinge4
- Outcome
- early oat growthe4
- Direction
- promotede4
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“In conclusion, P seed coating promoted early oat growth without increasing economic yield”
e2“All significant changes represented improvements over the control”
Claim · model-written summary
Grain weight of hand-threshed oat samples was 8% lower than in harvested yield.
- Taxon
- OatAvena sativat0
- Outcome
- grain weight of hand‐threshed samplese5
- Direction
- lowere5
- Value
- 8%e5
- Comparator
- harvested yielde5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Small kernels were probably lost during harvest, as in most cases grain weight of hand‐threshed samples was lower (by 8% in average) than that in harvested yield”
t0“Phosphorus Seed Coating Enhancement on Early Growth and Yield Components in Oat”
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See all 12 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.