A relationship between heading date and in vitro tillering propensity in perennial ryegrass (Lolium perenne L.)

Nicola C Humphreys, Susan Dalton

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

Crynodeb

In vitro tillers of over 1000 genotypes from nine contrasting Lolium perenne cultivars were cultured on various media containing the synthetic cytokinin, 6-benzylaminopurine (BAP), in order to determine the effect on tillering. The cultures were assessed after seven weeks for survival, tiller production, size and vigour. Added auxins 2,4-dichlorophenoxyacetic acid (2,4-D) and α-napthaleneacetic acid (NAA) had no consistent beneficial effects.
A significant relationship was found between in vitro tiller production and cultivar heading date. Genotypes of early-heading, less persistent cultivars produced more tillers than genotypes from late heading more persistent cultivars. This was consistent with the generally higher in vitro tiller production in the biennial species Lolium multiflorum cultured on similar media
Iaith wreiddiolSaesneg
Tudalennau (o-i)253-257
Nifer y tudalennau5
CyfnodolynEuphytica
Cyfrol58
Rhif cyhoeddi3
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - Tach 1991

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