Endogenous cytokinins in rose petals and the effect of exogenously applied cytokinins on flower senescence.
Lukaszewska, A.J., Bianco, J., Barthe, P. and Page-Degivry, M.T.L.
Plant Growth Regulation. Volume 14, Number 2, March 1994. Pages 119-126.
1994
บทคัดย่อ
In extracts from rose petals cytokinin activity was detected by Amaranthus bioassay in HPLC eluates corresponding to the standards: Z, ZR, 2iP and 2iPA; subsequently, the presence of two groups of endogenous cytokinins was confirmed by ELISA. Measurements of senesence indicators (cell sap osmolarity and conductivity) and observations of flower vase-life indicated that when the above cytokinins were applied as holding solutions they delayed flower senescence by 34-56% and prolonged rose longevity.