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AN ANALYSIS OF HYBRID VIGOUR IN TETRAPLOID RYE

2010· article· en· W2032413122 on OpenAlexaff
ARNE MÜNTZING

Bibliographic record

VenueHereditas · 2010
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicGenetics and Plant Breeding
Canadian institutionsInstitute of Genetics
Fundersnot available
KeywordsHeterosisBiologyOutbreeding depressionGermplasmLibrary scienceInbreedingHorticultureSociologyHybridDemographyPopulation

Abstract

fetched live from OpenAlex

I N breeding work with autotetraploid rye (ct. MUNTZING, 1951) selec- tion has been carried out within several different strains and also in crossing groups involving two or more strains. After intererossing evidence of hybrid vigour and increased fertility was ohtained several years ago. In order to obtain accurate data on this point artificial crosses between tetraploid strains of three different rye varieties, Steel, Petkus and King, were undertaken in 1951. The crosses were made in the three combinations possible (Steel X Petkus, Steel X King and Petkus X King; in the present paper the names Steel, Petkus and King always refer to tetraploid strains of these varieties), and in each cross in hoth reciprocal directions. The number of kernels obtained was sufficiently large to enable the establishment of isolation groups as well as a small field trial, in which parents and hybrids were compared. In this trial the seeds were sown in the holes of marker boards with one seed per hole, 5 em, between the holes and 30 holes per row. In each cross there were 3 replications, each replication being represented by the parent strains (4 rows of each) and between them the two reciprocal hybrid combinations (2 rows of each). Thus, in each replication there was a total of 4 F, rows surrounded by 4 rows of each parent strain. To prevent border effects the whole trial was surrounded hy tetraploid winter rye plants sown in spring and therefore not shooting. Germlnation and sprouting in the autumn were quite satisfactory and also the wintering and further development during the summer of 1952. 266 ARNE MUNTZING

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.696
Threshold uncertainty score0.854

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.013
GPT teacher head0.215
Teacher spread0.202 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations8
Published2010
Admission routes1
Has abstractyes

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