qualitative

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Related to qualitative trait: qualitative inheritance

qualitative

Dealing with observations that are subject to interpretation. Contrast with quantitative. See qualitative data.
References in periodicals archive ?
Abbreviations: DSI, disease severity index; OxO, oxalate oxidase; PDA, potato dextrose agar; QTL, qualitative trait loci.
The observed values of quantitative traits are more easily affected by environment than those of qualitative traits. More traits accumulate more environmental errors and experimental errors, which leads to less representativeness of core collections.
* One or few genes control qualitative traits, and several or many genes usually control quantitative traits.
The genotype of an individual for a qualitative trait can be determined (identifying the genes that occupy the gene pair[s]) with reasonable accuracy.
Percentage of seed oil is one of the qualitative traits in this experiment that is considered.
A total of 54 categories were observed for the 19 qualitative traits scored on accessions of all seven subpopulations with an average of 2.84 categories per qualitative trait.
The "alcoholism or depression" phenotype was studied as a qualitative trait using the affected sibling design--that is, the analysis included sibling pairs in which both siblings were alcohol dependent and/or suffered from depression.
Most of the selected qualitative traits were found principally influential in the PCA.
Heat stress effect on yield and qualitative traits in maize (Zea mays L.) genotypes.
In addition qualitative traits such as stem color, leaf color, seed color and seed shape were also considered.
The results of this research showed that water stress had negative effect on forage production and qualitative traits but planting pattern had not significant effect on these traits.
Favorable alleles governing qualitative traits have been identified and incorporated into superior cultivars by both traditional and modern genetic techniques (Langridge and Chalmers, 1998).

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