Articles
EVERGREEN BLACKBERRY SCREENING FOR GENETIC THORNLESSNESS
Article number
262_14
Pages
113 – 118
Language
Abstract
Two trials of ‘Oregon Thornless Evergreen’ blackberry (Rubus laciniatus WILLD.) produced through tissue culture have been established in hopes of identifying a genetically thornless clone as productive as the chimerally thornless Oregon standard.
In a replicated planting, nine potentially-thornless compact clones were compared with Illinois tissue-cultured standards and Oregon vegetatively propagated standards.
Illinois and Oregon standards performed comparably.
The most productive of the nine potentially thornless compact clones was comparable to the standards, but produced a partially thorny cane.
The type and extent of thorny regrowth will be evaluated in 1989. In a screening trial of 91 clones selected from 1300 bent-petiole plantlets, 43 performed well in the first year.
All 91 will be evaluated for productivity and thornlessness in 1989.
In a replicated planting, nine potentially-thornless compact clones were compared with Illinois tissue-cultured standards and Oregon vegetatively propagated standards.
Illinois and Oregon standards performed comparably.
The most productive of the nine potentially thornless compact clones was comparable to the standards, but produced a partially thorny cane.
The type and extent of thorny regrowth will be evaluated in 1989. In a screening trial of 91 clones selected from 1300 bent-petiole plantlets, 43 performed well in the first year.
All 91 will be evaluated for productivity and thornlessness in 1989.
Publication
Authors
E.H. Nelson, J.T. DeFrancesco, L.W. Martin, R.L. Skirvin
Keywords
Online Articles (63)