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This experiment aimed to investigate the genetic basis of root growth in manipulated lines by crossing two male parents (Male: M1, M2) with five female parents (Female: F1–F5), resulting in ten cross combinations. Up to eight seeds per cross were to be grown in a completely randomized design, and the maximum root length (in mm) was measured for each plant three weeks after sowing (Root). However, due to genetic incompatibilities affecting seed viability, several treatment combinations failed to produce the intended number of replicates, resulting in a total of only 30 observations. The dataset enables analysis of genetic effects on root growth while accounting for variable replication.

Usage

cross

Format

A data frame with 4 variables: Seed, Female, Male, Root.

Seed

Factor. Unique identifier for each individual seed/planted observation.

Female

Factor. Code for the female parent in the cross (levels: "F1" to "F5").

Male

Factor. Code for the male parent in the cross (levels: "M1", "M2").

Root

Integer. Maximum root length (in millimeters) measured for each seedling three weeks after planting.

Source

Welham, S. J., Gezan, S. A., Clark, S. J., and Mead, A. (2015) Statistical Methods in Biology: Design and analysis of experiments and regression