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

Phenot:'¡pic Corre-Lations
Sinpl-e phenot¡oic correlations for each population
and pooled correlations between ten <strong>of</strong> the agronornic
parameters, and between selected agronomíc characteristic s,
lodgíng, and the four quality traits, are presented in
îable 10.
Plant heighi was significantly, positively and homo-
geneously correlated with yield per p1ot, 200 kernel weight,
test weight, percent plumpness, days in post-anthesis and
degree <strong>of</strong> lodging" llhe relationship with )¡ield supÈorted
reports <strong>of</strong> Konishi (19?6), Fiuzat and Atkins (I9fi) anð.
Ðuwaryí (a9?l+), but ís in disagz'eement with resutts published
by Na.sr et al. (Igfi), Kiesselbach et al. (1g40) and Rutger
et a1. (tçøZ) - lhe association with kernel weight supported
results <strong>of</strong> Konishi (L976) and Fiuzat and. Atkins (1951), but
is not ln agreernent with those <strong>of</strong> Crook and poehlman (fg/t).
Both Nasr et a1" (fg?3) and Rutger et â1, (196?) have reported
sirnilar relationships for <strong>plant</strong> <strong>height</strong> with test weight and
percent plumpness, wbile Konishi (l-9?6), Duwaryi (Lg?4),
and Nasr et al. (f973) all reported a sinilar relationsl¡ip
<strong>of</strong> <strong>height</strong> wi.th lodging. These results a:'e in general
agreenent with those fz'orn wheat studies ( Jol.rrson et al-.
L966 (a.i) and rice work (Chandler, L)6p),
Flant <strong>height</strong> showed heterogeneous relationships with
three traits. llith kernels per spike none <strong>of</strong> tl¡e indlvidualpopulation
values were significant and we ean eonclude, as
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