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

elãted negative association between p1u-ropne ss and days to
heading" Significant positive correlations cccurred between
plurnpness and degree <strong>of</strong> lodging ín C-7A-2 a'r.ð. C,-?t-3.
Pereent plumpness showed generall.y ôegative refationships
with leve1s <strong>of</strong> alpha-amylase, saceharífying activity
and soluble amino-nitrogen, again particularly in ti.re case
<strong>of</strong> populatian C-lO-7, A negative assoeiation <strong>of</strong> plumpne ss
v¡ith diastatie power was prevS-ously reported (Rutger gI ef",
L96?).
lhere was a strong positive relationship between days
to Ìreading and days to rrraturity in populations C-?O-l and
C-?O-z, lhe association was not significant in C-7A4.
Dâ)¡s to heading was negãtively associated wíth days in
post-anthesis in all three populations" A strong positive
corue lation existed between d-ays to rnaturity and days in
post-anthesis ín populations C-70-1 e,Þd C-70-J. This
relationship was particularly strong (r="82) for C-?0-J.
The correlation for these pa.raneters wås not significant
for C-7O-2,
The generally negative correlations between degree <strong>of</strong>
lodging and the four quality parameters, i.e. alpha-anylase,
saccharifying activity, percent barley nitrogen and soluble
amino-nitrogen, reflected the positive associatj-on <strong>of</strong>
lodgi-ng witir the yield components and the negative associations
between these quality parâmeters and the yield
c omponents o
The interre lationships amongst the quality pararneters
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