Abstract
Several single-value germination indices, including Kotowski's coefficient of velocity, Maguire's speed of germination, Czabator's germination value, Diavanshir and Pourbiek's germination value, Timson's cumulative germination, Lehle and Putnam's Richards function index, Smith and Millett's sprouting index, and Tucker and Wright's regression index, were evaluated to test their ability to distinguish superior from inferior germination. All except Timson's cumulative germination method were essentially no better for ranking germination responses than data on total germination; Kotowski's coefficient of velocity, Smith and Millet's sprouting index, and Lehle and Putnam's Richards function index were markedly inferior. Because of the ambiguity inherent in any index that combines, into a single value, data about the onset, rate and extent of germination, none of the indices could be recommended as a way of summarizing germination.
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Claims 3
Claim · model-written summary
All indices except Timson’s method ranked germination no better than total germination data.
Not reportedTaxon
Verbatim
e0“All except Timson's cumulative germination method were essentially no better for ranking germination responses than data on total germination”
Claim · model-written summary
Three indices were markedly inferior for ranking germination.
Not reportedTaxonComparatorValue
Verbatim
e0“Kotowski's coefficient of velocity, Smith and Millet's sprouting index, and Lehle and Putnam's Richards function index were markedly inferior”
Claim · model-written summary
The authors do not recommend any single-value germination index for summarizing germination.
- Outcome
- none of the indices could be recommendede0
Not reportedTaxon
Verbatim
e0“none of the indices could be recommended as a way of summarizing germination”