บทคัดย่องานวิจัย

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

Endogenous cytokinins in rose petals and the effect of exogenously applied cytokinins on flower senescence.

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.