Volume 50 Number 1 Article 6
Year 1996 Month 1
Title: Dietary Fiber Composition of ´Starkspur Supreme Delicious` Apple Fruit as Influenced by Rootstock and Growing Region
Authors: F. Gheyas, E. Young, S.M. Blankenship and R.F. McFeeters
Abstract:
Fruit from nine year old 'Starkspur Supreme
Delicious' apples grown on seven different rootstocks:
B.9, M.26 EMLA, M.7 EMLA, CG.10,
P.1, MAC.39, and seedling were analyzed to
study the effects of rootstock on dietary fiber
composition of fruit.
Effects of growing region
on fiber composition were studied using apples
from nine-year old 'Starkspur Supreme Delicious' trees on M.26 EMLA grown in uniform
trials in Washington, Minnesota, Kansas, Arkansas, Ohio, North Carolina, and Maine.
There
were significant rootstock effects on both nonstarch
polysaccharide (NSP) content and nonstarch
cell wall material (NSCWM) of apple.
NSCWM content was not affected by growing
region.
However, there was significant effect of
growing region on NSP content of apple.
NSP
content ranged from 1.48 g/lOO g flesh in fruit
from trees on B.9 to 1.98 g/100 g flesh in fruit
from trees on a P.1 rootstock.
It ranged from
1.41 g/100 g flesh in apples grown in Minnesota
to 1.77 g/100 g flesh in Arkansas apples.
There
were also significant rootstock and regional
effects on relative composition of monosaccharides.
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