5 ron cohen thailand compatibility mode
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Introducing grafted cucurbitsto modern agriculture:The Israeli experience
Ron Cohen
Section of Cucurbit ResearchSection of Cucurbit Research
Newe Newe Ya’arYa’ar Research Center, Research Center,
IsraelIsrael
What is grafting ?
Uniting of two living plant parts so that they grow as a single plant
Methyl bromideMethyl bromide
Grafted vegetables in Israel
Tomato Cucurbits
Melon WatermelonCucumber
Soil-borne diseases – Fusarium, Mpnosporascus,MacrophominaMacrophomina
Response to insects and nematodesSalinity and marginal water
Rootstock breeding
Agro-technology and yield – Fruit qualityRootstock- scion compatibility
Soil-borne diseases
Grafted Non grafted
GraftedNon-grafted
Watermelon Vine DeclineWestern Galilee
Macrophomina phaseolina
Monosporascus cannonballus
Newe Ya’ar Research Center
Macrophomina land
Northern Valleys
Is it profitable growing grafted melons in mid-summerfor the local market ?
Transplants Prices:
Non-grafted : 0.35 NIS
Grafted : 2.5 NIS
Above GraftDistant from Graft
Mixture of Fusarium sp. and
Macrophomona phaseolina
Root Scion
שדה יעקב–מלון מורכב על כנת דלעת 2006ספטמבר
Sdee Yaacov 2006
Yie
ld (
kg/D
)
a
aa
a
a
aa
b
6405 Eyal
Stand (cm)
Yie
ld (
kg/D
)
b
Monosporascus land
Jordan“Zohar” experiment station
‘Ein tamar
Melon physiological collapse at ‘En TamarSpring, 2000
35404550
Co
lla
pse
in
cid
ence
TRELLISED
PROSTRATE
05
1015202530
Co
lla
pse
in
cid
ence
(%)
non grafted melon-melon melon-Cucurbita
-Melon grafted onto rootstocks from Newe Ya’ar breeding program (#18 and 34) did not collapse when grown trellised.
-Melon yield was 60% higher as compared to non-grafted melons.
-The yield was 30% significantly higher compared to melon plants grafted onto the currently used commercial rootstock.
60
Accumulative yield - saline water (EC 4.2)
0
10
20
30
40
50
60
90 110 130 150 170 190
Yie
ld (
Kg
/plo
t)
Days from planting
18
34
TZ-148
control
A
AB
BC
C
The two step selection
Spring
Adapting grafted melons to trellised cultivation
Non-grafted
Second Fruit Wave First Fruit Wave
(
Grafted
Second Fruit WaveFirst Fruit Wave
Stress conditions
21.2.2002
Boron 10 mg/l
13.3.2002
Boron absorption
Non-grafted
y = 2.6252e
R2 = 0.9338
60.00
70.00
80.00
90.00
Grafted
y = 2.8602e
R2 = 0.8038
60.00
70.00
80.00
90.00
B in
leav
es (
mg
/l)
0.00
10.00
20.00
30.00
40.00
50.00
60.00
0.25 0.8 2.5 5 10
B in irrigation water (mg/l)
B in
leav
es
0.00
10.00
20.00
30.00
40.00
50.00
60.00
0.25 0.8 2.5 5 10
B in irrigation water (mg/l)
B in
leav
es (
mg
/l)
Fruit quality
Mini- watermelon
Incompatibility,
water uptakewater uptake
Arava non-grafted
Arava / RS 60
Physiological
incompatibility
Non grafted
Arava Valley summer 2003
Grafted
Anatomical Examination of Grafting Site
62/ערבה 11 days post grafting 14 days post grafting
Effect of TIBA (200 ppm) on the development of
Arava melon grafted on the Cucurbita rootstock RS 62
IAA
IAA
Compatible Incompatible
Root growth
Ethylene induction
ROS production
Root death
Ethylene induction
ROS production
Antioxidation
system
genes ?
genes ?
genes ?
*
*
*
