Cut Flowers - Crop Post-Harvest: Science and Technology - page 457

Table 19.4 Cut Flower Lines Reported to be
Ethylene Sensitive.
Name Sensitivity Comment

agapanthus yes

anenome yes

anthurium low

alstroemeria high

asparagus fern low

gypsophila yes

bouvardia yes

carnation high

daffodil high

delphinium high

euphorbia high

freesia high

grevillea high

gerbera low

holly yes

iris (bulbous) high

lisianthus low

mistletoe high

nerine low

oriental lily high

orchids yes (high)/no varies with genus

rose yes varies with cultivar

snapdragon high

statice yes

stock yes

sunflower low

sweet pea high

sweet William yes

tuberose low

tulip low

verticordia yes (high)/no varies with species

waxflower yes varies with

genotype

Source: Nowak and Rudnicki (1990), and Nell and
Reid (2000); see also Woltering and van Doorn (1988),
and van Doorn (2001).

always effective (Table 19.5) (Halevy & Mayak 1981;
Joyce 1989). Gibberellin and cytokinin treatments retarded
alstroemeria and Easter lily leaf chlorosis (Hicklenton
1991; Han 1995), and increased the foliage vase life of
goldenrod (Table 19.6). Pulse treatment of cut Alstroemeria
cv. Diamond stems with the cytokinin-like compound
thiadiazuron (TDZ) increased leaf longevity from ≤18
days to over 60 days (Ferrante et al . 2002). Applied GA

Figure 19.9 Protection against ethylene-induced
abscission conferred by pre-treatments of cut
Grevillea cv. Honey Gem inflorescences with
1-methylcyclopropene gas (Top image) and potted
Radermacheria cv. Crystal Doll plants with silver
thiosulphate spray (Bottom image). Controls on left
and treated on right in both images. Reproduced
with permission of the authors and publisher.