Volume 52 Number 3 Article 26
Year 1998 Month 7
Title: ´Chester Thornless` Blackberry
Authors: G.J. Galletta, A.D. Draper, J.L. Maas, R.M. Skirvin, A.G. Otterbacher, H.J. Swartz and C.K. Chandler
Abstract:
'Chester Thornless' is a very vigorous,
productive, large fruited, late maturing,
moderately winterhardy thornless blackberry cultivar [Rubus sp., subgenus
Rubus (Eubatus)] released jointly by the
Agricultural Research Service, USDA,
the Illinois Agricultural Experiment Station, the Ohio Agricultural Research and
Development Center, and the Maryland
Agricultural Experiment Station in 1985.
It is well adapted south of a line extending from western Maryland, through central Ohio, to Kansas City, Missouri in the
eastern United States and to portions of
the West Coast of the United States.
* Chester Thornless' is usually more productive than 'Hull Thornless' and, while
it is similar in fruit size, color, firmness,
quality, and seed size, 'Hull Thornless' is
considered to have better flavor.
Its fruit
does not soften or lose color on hot,
sunny and humid days as readily as fruit
of other thornless semi-erect cultivars.
'Chester Thornless' has proven to be
valuable to pick-your-own and back-yard
growers, as well as to wholesale marketers. 'Chester Thornless' was named in
recognition of the contributions of Dr.
Chester Zych, former fruit researcher at
the University of Illinois, who early recognized the merits of this blackberry and
encouraged its advance testing and release.
The outstanding characteristics of
'Chester Thornless' are plant hardiness
and disease resistance, and high yields of
large fruit of good quality.
It is recommended as a replacement for
'Thornfree' in USDA hardiness zones 5-7
and possibly in zones 8 and 9.
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