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flowering occurs at 60 days. After 80 days flowers are no
longer present (McCloud 1974, McGraw 1977). The seasonal
flowering pattern has a frequency curve similar to a normal
distribution. Pegs begin to appear ca. 7-14 days after
flowering. Generally only 15-30% of the flowers produce
mature pods (Smith 1954). Early pegs generally produce a
higher proportion of fruit than pegs initiated later. Usually
by 56 days after planting the first pegs begin to swell into
pods. Pod number per plant increases steadily until ca. 84
days at which time the pod load stabilizes. By day 70, seeds
begin filling. Pod formation is completed soon after the
full pod load is established and growth thereafter is in the
seed (Duncan et al. 1978). The pegs and pods which fail to
mature remain attached to the plant and are not eliminated
by abscission (Smith 1954).
McGraw (1977) used plant growth analysis to describe
'Florunner' growth as follows: Plant growth followed a
sigmoid curve. The first 7 weeks of vegetative growth was
7
geometric. All assimilates were used for accumulation of
dry matter into vegetative parts. The largest component in
terms of dry matter during this phase was the leaf component.
There was a linear growth phase which extended from week 7
to week 16. At 10 weeks plant development shifted from
vegetative to reproductive growth and the rate of dry
matter production began to slow since more photosynthate
production was required for seed production than vegetative
matter. Dry matter accumulation in the stem and leaf compon
ent ceased at about 84 days. The pods filled at a linear
rate until maximum dry weight was reached at day 133.