Tukey multiple comparisons of means
    95% family-wise confidence level

Fit: aov(formula = Param ~ variety + Rep, data = df)

$variety
                             diff        lwr       upr     p adj
Donna-Bossito          4.19416240 -16.191110 24.579435 0.9991899
Hysinger-Bossito      10.82235488  -9.562917 31.207627 0.7105260
Hysky-Bossito         -4.66989859 -26.688509 17.348712 0.9989722
Hystore-Bossito        8.32232229 -12.062950 28.707595 0.9135606
Hytech-Bossito        12.27646404  -8.108808 32.661736 0.5569911
Packito-Bossito       -3.95767397 -24.342946 16.427598 0.9994887
Prediction-Bossito    -4.04414764 -24.429420 16.341125 0.9993926
Promotion-Bossito     -1.48407414 -21.869346 18.901198 0.9999999
Rockito-Bossito       -2.58568397 -22.970956 17.799588 0.9999851
Hysinger-Donna         6.62819248 -13.757080 27.013465 0.9776456
Hysky-Donna           -8.86406099 -30.882672 13.154550 0.9198678
Hystore-Donna          4.12815989 -16.257112 24.513432 0.9992852
Hytech-Donna           8.08230164 -12.302971 28.467574 0.9262999
Packito-Donna         -8.15183637 -28.537109 12.233436 0.9227420
Prediction-Donna      -8.23831005 -28.623582 12.146962 0.9181665
Promotion-Donna       -5.67823654 -26.063509 14.707036 0.9921561
Rockito-Donna         -6.77984637 -27.165119 13.605426 0.9741519
Hysky-Hysinger       -15.49225347 -37.510864  6.526357 0.3503885
Hystore-Hysinger      -2.50003259 -22.885305 17.885240 0.9999888
Hytech-Hysinger        1.45410916 -18.931163 21.839381 0.9999999
Packito-Hysinger     -14.78002885 -35.165301  5.605243 0.3126341
Prediction-Hysinger  -14.86650252 -35.251775  5.518770 0.3054738
Promotion-Hysinger   -12.30642902 -32.691701  8.078843 0.5537894
Rockito-Hysinger     -13.40803885 -33.793311  6.977233 0.4391585
Hystore-Hysky         12.99222088  -9.026390 35.010832 0.5835454
Hytech-Hysky          16.94636263  -5.072248 38.964973 0.2426995
Packito-Hysky          0.71222462 -21.306386 22.730835 1.0000000
Prediction-Hysky       0.62575095 -21.392860 22.644362 1.0000000
Promotion-Hysky        3.18582445 -18.832786 25.204435 0.9999544
Rockito-Hysky          2.08421462 -19.934396 24.102825 0.9999988
Hytech-Hystore         3.95414175 -16.431131 24.339414 0.9994923
Packito-Hystore      -12.27999626 -32.665269  8.105276 0.5566136
Prediction-Hystore   -12.36646994 -32.751742  8.018802 0.5473810
Promotion-Hystore     -9.80639643 -30.191669 10.578876 0.8068073
Rockito-Hystore      -10.90800626 -31.293279  9.477266 0.7018138
Packito-Hytech       -16.23413801 -36.619410  4.151134 0.2065309
Prediction-Hytech    -16.32061169 -36.705884  4.064661 0.2011826
Promotion-Hytech     -13.76053818 -34.145810  6.624734 0.4045285
Rockito-Hytech       -14.86214801 -35.247420  5.523124 0.3058318
Prediction-Packito    -0.08647367 -20.471746 20.298799 1.0000000
Promotion-Packito      2.47359983 -17.911672 22.858872 0.9999898
Rockito-Packito        1.37199000 -19.013282 21.757262 0.9999999
Promotion-Prediction   2.56007351 -17.825199 22.945346 0.9999863
Rockito-Prediction     1.45846367 -18.926809 21.843736 0.9999999
Rockito-Promotion     -1.10160983 -21.486882 19.283662 1.0000000