Abstract
The influence of two drying regimes and two storage temperatures of primed asparagus ( Asparagus officinalis L.) and tomato ( Lycopersicon esculentum Mill.) seeds on germination after storage up to 3 months was examined. Seeds of `Mary Washington' asparagus and `Ace 55' tomato primed in synthetic seawater (-1.0 MPa, 20C, 1 week, dark) were surface-dried at 20C and 50% relative humidity (RH) for 2 h (42% to 49% moisture) or dried-back at 20C and 32.5% RH for 48 h (moisture = 13% tomato and 22% asparagus). These and nonprimed seeds were stored in tight-lidded metal cans and heat-sealed plastic pouches at 4 or 20C for up to 3 months before germination at 20C. After 3-month storage, primed surface-dried asparagus seeds stored at 4C had greater germination percentage and rate than nonprimed seeds, surface-dried seeds stored at 20C, or primed dried-back seeds. Dried-back primed tomato seeds had higher germination percentage than surface-dried primed seeds after 2 or 3 months of storage, with storage temperature having no effect on germination perecentage or rate. In a further study, primed surface-dried and primed dried-back seeds stored at 4 or 20C for 1.5 months in sealed containers were germinated at 15, 25, or 35C under low (-0.05 MPa) or high osmotic stress (-0.4 MPa). Primed surface-dried asparagus seeds stored at 4C, compared to nonprimed seeds, surface-dried seed stored at 20C, or primed dried-back seeds, had greater germination percentage at 15 and 35C and low osmotic stress, and higher germination rate at 15 or 25C. Primed tomato seeds had greater germination percentage than nonprimed seeds only at 35C and low osmotic stress, and higher germination rate at 15 or 25C. Storage of primed tomato seeds at 4C rather than 20C increased germination rate at 15 or 25C, and increased germination percentage at 35C and low osmotic stress. For maximal seed viability and germination rate after 1.5 to 3 months of storage, primed asparagus and tomato seeds should be stored at 4C rather than 20C; however, asparagus seeds should be surface-dried, and tomato seeds should be dried-back.
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Claims 11
Claim · model-written summary
Surface-dried primed asparagus seeds stored at 4C had greater germination percentage and rate after three months.
- Organ / stage
- seedse0
- Treatment
- primed surface-dried asparagus seeds stored at 4Ce0
- Outcome
- germination percentage and ratee0
- Direction
- greatere0
- Qualifier
- After 3-month storagee0
- Comparator
- nonprimed seeds, surface-dried seeds stored at 20C, or primed dried-back seedse0
AsparagusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 3-month storage, primed surface-dried asparagus seeds stored at 4C had greater germination percentage and rate than nonprimed seeds, surface-dried seeds stored at 20C, or primed dried-back seeds”
Claim · model-written summary
Dried-back primed tomato seeds had higher germination percentage than surface-dried seeds after two or three months.
- Taxon
- tomato
Solanum lycopersicumt0 - Organ / stage
- seedse0
- Treatment
- Dried-back primede0
- Outcome
- germination percentagee0
- Direction
- highere0
- Qualifier
- after 2 or 3 months of storagee0
- Comparator
- surface-dried primed seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dried-back primed tomato seeds had higher germination percentage than surface-dried primed seeds after 2 or 3 months of storage”
t0“Tomato”
Claim · model-written summary
Storage temperature had no effect on tomato seed germination percentage or rate in the first study.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- storage temperaturee0
- Outcome
- germination perecentage or ratee0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“storage temperature having no effect on germination perecentage or rate”
t0“Tomato”
Claim · model-written summary
Surface-dried asparagus seeds stored at 4C had greater germination percentage under specified temperatures and low osmotic stress.
- Organ / stage
- seedse0
- Treatment
- Primed surface-dried asparagus seeds stored at 4Ce0
- Outcome
- germination percentagee0
- Direction
- greatere0
- Qualifier
- at 15 and 35C and low osmotic stresse0
- Comparator
- nonprimed seeds, surface-dried seed stored at 20C, or primed dried-back seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primed surface-dried asparagus seeds stored at 4C, compared to nonprimed seeds, surface-dried seed stored at 20C, or primed dried-back seeds, had greater germination percentage at 15 and 35C and low osmotic stress”
Claim · model-written summary
Surface-dried asparagus seeds stored at 4C had higher germination rate at 15 or 25C.
- Treatment
- Primed surface-dried asparagus seeds stored at 4Ce0
- Outcome
- germination ratee0
- Direction
- highere0
- Qualifier
- at 15 or 25Ce0
- Comparator
- nonprimed seeds, surface-dried seed stored at 20C, or primed dried-back seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primed surface-dried asparagus seeds stored at 4C, compared to nonprimed seeds, surface-dried seed stored at 20C, or primed dried-back seeds, had greater germination percentage at 15 and 35C and low osmotic stress, and higher germination rate at 15 or 25C”
Claim · model-written summary
Primed tomato seeds had greater germination percentage only at 35C under low osmotic stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Primede0
- Outcome
- germination percentagee0
- Direction
- greatere0
- Qualifier
- only at 35C and low osmotic stresse0
- Comparator
- nonprimed seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primed tomato seeds had greater germination percentage than nonprimed seeds only at 35C and low osmotic stress”
t0“Tomato”
Claim · model-written summary
Primed tomato seeds had higher germination rate at 15 or 25C.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Primede0
- Outcome
- germination ratee0
- Direction
- highere0
- Qualifier
- at 15 or 25Ce0
- Comparator
- nonprimed seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primed tomato seeds had greater germination percentage than nonprimed seeds only at 35C and low osmotic stress, and higher germination rate at 15 or 25C”
t0“Tomato”
Claim · model-written summary
Storing primed tomato seeds at 4C increased germination rate at 15 or 25C.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- at 4Ce0
- Outcome
- germination ratee0
- Direction
- increasede0
- Qualifier
- at 15 or 25Ce0
- Comparator
- 20Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage of primed tomato seeds at 4C rather than 20C increased germination rate at 15 or 25C”
t0“Tomato”
Claim · model-written summary
Storing primed tomato seeds at 4C increased germination percentage at 35C under low osmotic stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- at 4Ce0
- Outcome
- germination percentagee0
- Direction
- increasede0
- Qualifier
- at 35C and low osmotic stresse0
- Comparator
- 20Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage of primed tomato seeds at 4C rather than 20C increased germination rate at 15 or 25C, and increased germination percentage at 35C and low osmotic stress”
t0“Tomato”
Claim · model-written summary
The authors recommend storing primed asparagus seeds at 4C after surface drying.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For maximal seed viability and germination rate after 1.5 to 3 months of storage, primed asparagus and tomato seeds should be stored at 4C rather than 20C; however, asparagus seeds should be surface-dried, and tomato seeds should be dried-back”
Claim · model-written summary
The authors recommend storing primed tomato seeds at 4C after drying back.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- stored at 4Ce0
- Qualifier
- dried-backe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For maximal seed viability and germination rate after 1.5 to 3 months of storage, primed asparagus and tomato seeds should be stored at 4C rather than 20C; however, asparagus seeds should be surface-dried, and tomato seeds should be dried-back”
t0“Tomato”
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