Hayes and Garber - Cucurbit Breeding

FIELD PLOT TECHNIC 59
ported which for the particular condition of the experiment show
the number of replications desirable.
Mercer and Hall (1911), of England, recommend the use of
five systematically distributed plots of J^Q acre each. Montgomery
(1913), in his work at Nebraska, found that 16 ft. rows
gave best results when repeated from 10 to 20 times. At the
Cornell Experiment Station, when a careful yield test is desired
each strain is grown in 10 distributed rod rows.
In the plant-breeding nursery of the Minnesota Experiment
Station the practice is followed of growing each strain in a plot
consisting of three rod rows. The plots are replicated three
times, making four plots in all. The central rows only are
harvested. Table XII taken from Hayes and Arny (1917)
shows the effect of replication based on the yield of the central
rows of the wheat checks grown in 1916.
TABLE XII. VALUE OF REPLICATION BASED ON 72 CENTRAL Rows OF
THREE-ROW PLOTS OF TURKEY WINTER WHEAT (MINN. 529)
GROWN IN THE PLANT BREEDING NURSERY
Xiimber of replication^