Premium
PHOTOPERIODIC AGING IN ANAGALLIS ARVENSIS CLONES: ITS RELATION TO RNA CONTENT, ROOTING CAPACITY, AND FLOWERING
Author(s) -
Trippi Victorio S.,
Brulfert Jeanne
Publication year - 1973
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1973.tb05995.x
Subject(s) - biology , vegetative reproduction , cutting , persistence (discontinuity) , juvenile , botany , rna , longevity , horticulture , ecology , gene , genetics , geotechnical engineering , engineering
We investigated the photoperiodic regulation of aging in Anagallis arvensis L. propagated by cuttings. Short‐day (SD) conditions caused the persistence of juvenile forms and vegetative growth, as well as high rooting capacity and a high RNA content, through successive vegetative multiplications. SD + 1 long day (LD) every 15th day induced reproductive growth but allowed the persistence of a high rooting capacity and high RNA content through vegetative multiplications. LD conditions caused the persistence of the reproductive stage, the progressive loss of rooting capacity, and a decrease of RNA content. The longevity of the clones seems to be connected to the photoperiodic effects which induce indeterminate growth (SD) and/or determinate and reproductive growth. The loss of propagation capacity and the decrease of RNA content can be considered as indexes of aging not only in plants but also in clones.