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

significantl)' to the f͡'st N increment" Bonanza and CZO3011
¡aaj"ntained this increased kernel weight at the higher N
levels, while C703O32 anò. ltlir:r:' 64-62 showed a decrease at
the very highest N level.
At Sanford, l.9?6, tl¡¡e interaetion (fable 23) ârose
because C703011 and Bonanza shov¡ed no significant response
to N, while the other genotypes all showed a negative
resporÌse to the first incrernent <strong>of</strong> N, with Minn 64-62
showing thi.s negative response through to the highest N
leve I .
C701011 was consistently 1owest in kernel weight and.
Bonanza was highest (ga¡te e:_¡,). The other genotypes were
intermediate, with CTAZaZ\+ having ker.ne 1 weight not
significantly different fron tsonanzao fhe very l-ov¡ error
j-n ¡neasure¡nent <strong>of</strong> kernel weight ena.bled detection <strong>of</strong> the
F x G i-nteractions.
Ðegree sf l,odeitg. Lcdging occurred only in the two 19?5
trials. ANOVÀ and treatment mearrs are reported j-n lables
24 and 25,
,Applied N had a sÍgnifica.nt effect on}-y at portage,
and lociging increased as did the rate <strong>of</strong>, applied N (fable
25C). Eaeh N incremen* gave significantly rnore l-odging.
No significant effect <strong>of</strong> N was found at Carman due to the
very 1ow lodgíng leve1s ¡ however, a trend toward more
lodging as N increased existed (faufe z5C). Ä similar
effect <strong>of</strong> N was previously reported by Pendleton e$. Al..
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