Abstract
Abstract The prediction of the viability of stored seeds is important both for the management of germplasm collections and for the management of commercial seed production and storage. The Ellis and Roberts model for seed viability during storage is examined, and an inadequacy of the model highlighted. A modification is proposed, based on the ‘control mortality’ probit model developed for insecticide bioassays, to take proper account of variation in initial viability. This new ‘control viability’ model, relating seed viability to storage time, is fitted to data from a carrot seed storage experiment and found to fit well for a range of storage environments. A relationship, similar to that proposed by Ellis and Roberts for the effects of storage conditions on the rate of loss of viability, is fitted to the estimated rates from this new model. Data from a second carrot seed storage experiment are used to validate this relationship.
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Claims 3
Claim · model-written summary
The control viability model fit carrot seed viability across a range of storage environments.
- Taxon
- carrot
Daucus carotae0 - Outcome
- fit welle0
- Comparator
- range of storage environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This new ‘control viability’ model, relating seed viability to storage time, is fitted to data from a carrot seed storage experiment and found to fit well for a range of storage environments.”
Claim · model-written summary
A storage-condition relationship was fit to viability-loss rates estimated by the new model.
- Taxon
- carrotDaucus carotae1
- Outcome
- rate of loss of viabilitye0
- Comparator
- that proposed by Ellis and Robertse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A relationship, similar to that proposed by Ellis and Roberts for the effects of storage conditions on the rate of loss of viability, is fitted to the estimated rates from this new model.”
e1“data from a carrot seed storage experiment”
Claim · model-written summary
A second carrot seed storage experiment was used to validate the relationship.
- Taxon
- carrotDaucus carotae0
- Outcome
- validate this relationshipe0
- Comparator
- that proposed by Ellis and Robertse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Data from a second carrot seed storage experiment are used to validate this relationship.”
e1“A relationship, similar to that proposed by Ellis and Roberts for the effects of storage conditions on the rate of loss of viability, is fitted to the estimated rates from this new model.”