Effects of reduced plant height on breeding requirements and ...

the second v¡as not significant (fable Bl).
Significant differences existed betvreen genotypes for
number <strong>of</strong> seedlings emerged (fable 81). These differences
were not sueh as to give rise to a significant cìifference
between the <strong>plant</strong> he ight groups (Tab1e B4).
No differences existed for ERI betweên genotypes or
<strong>plant</strong> he ighi groups, contrary to results reported by A1lan
et- al. (L962) and Burleigh et at. (J?6q) from wheat
experiments.
A significant genotype by seeding depth interaction
occurred for number <strong>of</strong> seedlings emerged (rable 81). The
neans (Table 85) indieated the interaction occurrêd because
genotype s Bonanza, C|O3oLg, and Minn 64_62 showed fewer
numbers emerged from the thÍrd than from the second <strong>plant</strong>ing
depth while the other genotype s did not.
C7O3OL3 showed an inereased nunber <strong>of</strong> seedlings emerged
as it was <strong>plant</strong>ed progressively deeper, to the third depth
(laUfe 85¡. This probably resulted frorn inadequate watering
or viability problerns rather than a genuine depth effecto
Contrary to reported studies with wheat (ÀLlan et ê.L.,
1962), in the present study energence rate was not significantly
correlated with eoleoptile length (gab1e Z3B).
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