Rhododendrons from Cuttings
Variables to Consider for Rooting Rhododendrons from Cuttings
Variables to Consider for Rooting Rhododendrons from Cuttings
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Variables to Consider for Rooting<br />
<strong>Rhododendrons</strong><br />
<strong>from</strong> <strong>Cuttings</strong><br />
Rhododendron Species Botanical<br />
Garden
Constants<br />
Observation – attention to detail<br />
Cleanliness<br />
Record keeping<br />
Really sharp tools!
Really sharp tools
Hierarchy of Rootability<br />
easy to root =<br />
increasing<br />
difficulty =<br />
little attention<br />
to detail<br />
greater<br />
attention to<br />
detail
Variables involved in rooting<br />
cuttings
At cutting time<br />
time of year<br />
time of day<br />
type of cutting selected<br />
location of cutting selection<br />
water relations<br />
juvenility
At cutting time cont.<br />
physiological condition of stock plant<br />
fertility level of stock plant<br />
carbohydrate vs. nitrogen level in<br />
cutting stems
Time of year
Type of cutting selected
Location of cutting selection
Condition of stock plant
Fertility level of stock plant
Carbohydrate vs. nitrogen level
At cutting prep. time<br />
cutting (stem) length<br />
leaf removal – reduction of surface area<br />
wounding<br />
flower buds – leave or remove?<br />
indumentum<br />
disinfection<br />
bruising – microscopic attn. to detail
Stem length and leaf removal
Wounding
Rooting hormones
Flower buds-remove or leave?
Indumentum on the stem
Indumentum on the leaf
Disinfection
Bruising / Crushing<br />
Microscopic attention to detail
On the cutting bench<br />
water relations – mist, humidity<br />
death, rot and disease<br />
rooting medium – support, water, air<br />
light<br />
fertility<br />
root zone temperature
Water relations<br />
Mist and humidity
Death, rot and disease
Rooting medium
Fertility
oot zone temperature
Success!
R. yuefengense
R. macgregoriae
R. valentineanum
‘Everred’
R. Chamaetomsonii ‘Little Vixen’
R. Pingianum 1979/161
R. maximum
Leucothoe keiskei
Primula moupinensis
Ypsilandra thibetica
Meconopsis<br />
‘Lingholm’
R. huianum<br />
Rhododendron Species<br />
Botanical Garden<br />
www.rhodygarden.org
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