Abstract
Synopsis Twelve 3‐plant groups of alfalfa, composed at random from 36 plants that were uniformly resistant to common leafspot and randomly intercrossed within groups, produced progenies that differed significantly in mean reaction to the disease. This was interpreted to indicate that in critically‐sized subdivisions of a breeder's population, the evolutionary force of chance can be employed to effect a gene frequency stratification of the population. The relationship of this effect to inbreeding was noted.
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Claims 2
Claim · model-written summary
Randomly intercrossed alfalfa groups produced progeny differing significantly in leafspot reaction.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- randomly intercrossed within groupse0
- Interactor
- Pseudopeziza medicaginis
Pseudopeziza medicaginist0pathogen - Outcome
- mean reaction to the diseasee0
- Direction
- differed significantlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Twelve 3‐plant groups of alfalfa, composed at random from 36 plants that were uniformly resistant to common leafspot and randomly intercrossed within groups, produced progenies that differed significantly in mean reaction to the disease”
t0“Pseudopeziza medicaginis”
Claim · model-written summary
Chance in small subdivisions could stratify gene frequencies.
- Taxon
- alfalfaMedicago sativat0
- Outcome
- gene frequency stratificatione0
- Qualifier
- evolutionary force of chancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in critically‐sized subdivisions of a breeder's population, the evolutionary force of chance can be employed to effect a gene frequency stratification of the population”
t0“Alfalfa”