Abstract
Seed drying is a common step during the processing of seeds. This paper presents a systematic study on the effect of drying on cabbage seed quality for which amongst others a new dryer system and a new quality indicator were developed. The new dryer system allows drying of seeds under highly controlled air conditions and automatically monitors mass and temperature change of seeds. Germination quality (GQ) and speed were determined via germination tests after drying and storage. Little or no effect of drying temperature on overall GQ (minimum 90%) was detected up to 55 °C. High-quality (i.e. 95% germination) was mostly reached with drying below 40 °C. For 70 °C, GQ decreased drastically. Relative humidity (RH) and time did not significantly influence GQ. To achieve high GQ after drying as well as after storage, the most optimal protocols were around 40 °C and 30% RH or 25 °C and 5% RH, with the latter protocol drying faster. In addition, the ethanol index (EI) was proposed as a faster and less laborious indicator for GQ by adapting a known ethanol method measuring ethanol headspace of cabbage seeds incubated with an ethanol solution. It correlated well with GQ (R2 = 0.93), thus being a promising quality indicator.
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Claims 9
Claim · model-written summary
The dryer controlled air conditions and automatically monitored seed mass and temperature.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Outcome
- mass and temperature change of seedse0
- Comparator
- highly controlled air conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The new dryer system allows drying of seeds under highly controlled air conditions and automatically monitors mass and temperature change of seeds”
t0“cabbage”
Claim · model-written summary
Drying up to 55 °C had little or no effect on overall germination quality, which was at least 90%.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- drying temperaturee0
- Outcome
- overall GQe0
- Direction
- no effecte0
- Value
- minimum 90%e0
- Qualifier
- up to 55 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Little or no effect of drying temperature on overall GQ (minimum 90%) was detected up to 55 °C”
t0“cabbage”
Claim · model-written summary
Drying below 40 °C mostly attained 95% germination.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- drying below 40 °Ce0
- Outcome
- germinatione0
- Value
- 95% germinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High-quality (i.e. 95% germination) was mostly reached with drying below 40 °C”
t0“cabbage”
Claim · model-written summary
Drying at 70 °C drastically decreased germination quality.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- 70 °Ce0
- Outcome
- GQe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For 70 °C, GQ decreased drastically”
t0“cabbage”
Claim · model-written summary
Relative humidity had no significant effect on germination quality.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- Relative humidity (RH)e0
- Outcome
- GQe0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Relative humidity (RH) and time did not significantly influence GQ”
t0“cabbage”
Claim · model-written summary
Drying time had no significant effect on germination quality.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- timee0
- Outcome
- GQe0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Relative humidity (RH) and time did not significantly influence GQ”
t0“cabbage”
Claim · model-written summary
The 40 °C and 30% RH protocol was optimal for germination quality after drying and storage.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- around 40 °C and 30% RHe0
- Outcome
- high GQ after drying as well as after storagee0
- Direction
- most optimale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To achieve high GQ after drying as well as after storage, the most optimal protocols were around 40 °C and 30% RH or 25 °C and 5% RH, with the latter protocol drying faster”
t0“cabbage”
Claim · model-written summary
The 25 °C and 5% RH protocol was optimal for germination quality and dried faster.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- 25 °C and 5% RHe0
- Outcome
- high GQ after drying as well as after storagee0
- Direction
- most optimale0
- Qualifier
- the latter protocol drying fastere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To achieve high GQ after drying as well as after storage, the most optimal protocols were around 40 °C and 30% RH or 25 °C and 5% RH, with the latter protocol drying faster”
t0“cabbage”
Claim · model-written summary
Ethanol index correlated with germination quality with R2 of 0.93.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Outcome
- correlated well with GQe0
- Value
- R2 = 0.93e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It correlated well with GQ (R2 = 0.93), thus being a promising quality indicator”
t0“cabbage”
The same questions in other papers
processing · quality: general · Brassica oleracea (wild cabbage)Positive and negative results
4 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →humidity · quality: general · Brassica oleracea (wild cabbage)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.