d013 <- read.table(here::here("data", "ARCHBOLD_APPLE.txt"), header = TRUE)D013. Split-split-plot design of two apples cultivars
The data file can be downloaded here:
Split-split-plot experiment of apple trees with different spacing (spacing), rootstock (stock), and cultivars (gen). The yield (yield) of apple in kg/tree was recorded over a 4 years period. The design of the experiment included 5 blocks (rep) of 3 rows (row). In each rep there were 3 different tree spacing (note that in several instance, one type of spacing spanned across 2 rows). For each spacing level there were 4 types of rootstock, and finally, each type of rootstock had 2 different varieties (Archbold et al. 1987).
| rep | row | pos | spacing | stock | gen | yield | trt |
|---|---|---|---|---|---|---|---|
| R1 | 2 | 1 | 6 | Seedling | Redspur | 70.9 | 601 |
| R1 | 2 | 2 | 6 | Seedling | Golden | 130.9 | 602 |
| R1 | 2 | 8 | 6 | MM111 | Redspur | 114.5 | 611 |
| R1 | 2 | 7 | 6 | MM111 | Golden | 90.5 | 612 |
| R1 | 2 | 3 | 6 | M0007 | Redspur | 151.8 | 671 |
| R1 | 2 | 4 | 6 | M0007 | Golden | 125.0 | 672 |
| R1 | 2 | 5 | 6 | MM106 | Redspur | NA | 661 |
| R1 | 2 | 6 | 6 | MM106 | Golden | NA | 662 |
The experimental design was as follows:
