CSA-Journal-2016-04

Fig. 16 Cym. ensifolium 'Noble Lotus' strain
tion with similar high PGR concentrations
many shoots and mycorrhizomes died off.
When the leaves had reached the top of
the flasks with the Hyponex medium we
deflask the plants without an additional
stage on a root developing medium. Roots
were soon developed in the seedling pots
under regular greenhouse conditions. The
first flowers showed 9 years after sowing
and 4 years after deflasking, which is
an extraordinarily long time in the lab.
Further research would be necessary to
approach the results Weihong Guo is
performing.
C. Chang et al. (2005) mention
the slow in vitro development (1-2 years
before shoots initialize) of the terrestrial
Jensoa cymbidiums in comparison to
epiphytic cymbidiums, a fact I confirm
from our lab. CHANG et al. demonstrate
the typical development of an
epiphytic cymbidium with Cym. dayanum
RCHB.F.,1869. It is similar to Cym.
hookerianum and also to Cym. wenshanense
Y.S. WU & F.Y. LIU, 1990 (section
Cyperorchis), a very attractive largeflowered
cymbidium from southern Yunnan
we cultivate and propagate at Hengduan
Biotech (Figure 18 and 19). They suggest
to hybridize an epiphytic cymbidium with
a terrestrial (Jensoa) species to accelerate
the in vitro development of the latter. With
the introduction of Cym. ensifolium into
the breeding of standard cymbidiums to
create mini cymbidiums this has long been
Fig. 17 A seedling of Cym. goeringii in flower 7 years after
sowing and 4 years after deflasking.
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