Abstract
Few studies have investigated the influence of P and K fertilization on soybean [ Glycine max L. (Merr.)] seed storability. The objectives were to determine the effect of P and K fertilizer rates and seed storage environments on soybean seed quality and seed carry‐over potential. Seed lots were harvested from a long‐term P and K trial. The plants were grown on replicated plots fertilized with one of four rates of P or four rates of K (0, 28, 56, 112 kg P 2 O 5 ha −1 /0, 35, 70, 140 kg K 2 O ha −1 ) broadcast by hand in the fall. Seed samples were stored in four different storage environments: continuous climate controlled warehouse; continuous nonclimate controlled warehouse; nonclimate controlled warehouse and 1 mo at 12‐h alternating temperatures of 4.5° and 15.5°C; and nonclimate controlled warehouse and 2 mo at alternating temperatures, with the first month at 4.5° and 15.5°C and second month at 10°C and 32.2°C. Most seed lots stored under ideal conditions were below the recommended value of 95% germination and 80% vigor following 13 mo of storage. Seed storage environments that experienced high temperature (>20°C) and relative humidity (RH) (>80%) rapidly decreased in seed viability and vigor to unacceptable levels. Phosphorus and K fertilization did not improve seed storability, although higher rates of K fertilization increased seed survival in poor storage environments for a short time. Seed producers should not store soybean seed for two growing seasons, regardless of storage environment and P and K fertilization levels in the seed production field.
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Claims 5
Claim · model-written summary
Most seed lots under ideal conditions fell below recommended germination and vigor after 13 months.
- Taxon
- soybean
Glycine maxe1 - Outcome
- germination and 80% vigore0
- Direction
- belowe0
- Qualifier
- following 13 mo of storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most seed lots stored under ideal conditions were below the recommended value of 95% germination and 80% vigor following 13 mo of storage”
e1“soybean [ Glycine max L. (Merr.)]”
Claim · model-written summary
High temperature and humidity storage rapidly reduced seed viability and vigor.
- Taxon
- soybeanGlycine maxe1
- Treatment
- high temperature (>20°C) and relative humidity (RH) (>80%)e0
- Outcome
- seed viability and vigore0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed storage environments that experienced high temperature (>20°C) and relative humidity (RH) (>80%) rapidly decreased in seed viability and vigor to unacceptable levels”
e1“soybean [ Glycine max L. (Merr.)]”
Claim · model-written summary
Phosphorus and K fertilization did not improve seed storability.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Phosphorus and K fertilizatione0
- Outcome
- seed storabilitye0
- Direction
- did not improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus and K fertilization did not improve seed storability”
e1“soybean [ Glycine max L. (Merr.)]”
Claim · model-written summary
Higher K fertilization briefly increased seed survival in poor storage.
- Taxon
- soybeanGlycine maxe1
- Treatment
- higher rates of K fertilizatione0
- Outcome
- seed survivale0
- Direction
- increasede0
- Qualifier
- in poor storage environments for a short timee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher rates of K fertilization increased seed survival in poor storage environments for a short time”
e1“soybean [ Glycine max L. (Merr.)]”
Claim · model-written summary
Seed producers should not store soybean seed for two growing seasons.
- Taxon
- soybeanGlycine maxe0
- Outcome
- should not store soybean seed for two growing seasonse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed producers should not store soybean seed for two growing seasons, regardless of storage environment and P and K fertilization levels in the seed production field”
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See all 19 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.