Copy of Propagation of Grape by Wedge Grafting(Sandhan)

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Transcript Copy of Propagation of Grape by Wedge Grafting(Sandhan)

Introduction
•
In drought prone areas, grapes are propagated by softwood
grafting / wedge grafting.
•
Grape varieties like Thompson seedless, Tas-A-Ganesh, Sonaka
etc. has good production potential however yield has reduced
due to high soil salinity, drought and nematode attack.
•
To over come this problem, wedge grafting in grape is practiced.
Root stock becomes ready to graft within 6-8 months
planting and graft union formed in 30-45 days.
after
Selection of Rootstock
• Dogridge,
Ramsey
(Salt
creek),
1613-C and 110-R grow vigorously
under adverse soil and climatic
conditions.
• Among
Dogridge
all
gives
these
higher
rootstocks,
yield
in
drought, salinity and nematode prone
Dogridge Rootstock of Grape
areas.
Rootstock Planting
• Root stock stick of 20 cm long with 7- 8 leaves are planted in the
field during February - March when temperatures are above 15o
C and favourable for shoot and root growth.
• Root stock Plantation should be install with drip irrigation system
and follow timely plant protection measures.
Selection of Scion Sticks
• Scion stick of desired variety with good yield potential and
compatibility with root stock should be selected.
• Pencil thickness scion sticks of 5-6 cm length are treated with
0.1 % Carbendazim fungicide for 2 to 3 Hrs.
Softwood / Wedge Grafting
• Rootstock accumulate sufficient amount of food material and
attains sufficient thickness within 7-8 months up to August.
• Favourable climatic conditions i.e. 300 to 350 C temperature
and 80 % relative humidity for successful grafting are
available from August to September.
• Give a “V” shaped notch (vertical cut) of 2-3 cm long on root
stock and prepare wedge shaped cut on scion stick.
• Insert scion stick in the notch of rootstock properly and tie
the graft union with 1 cm polythene tape.
Softwood Grafting in Grape
“V” Notch on root stock
Insertion of scion in “V” Notch
Wrapping with polythene tape
After Care
• Regular irrigation should be given to grafted plant to avoid
mortality of grafted plants.
• Irrigate the field in early morning and evening to maintain
essential humidity and temperature.
Schedule for Pest and Disease Management
Pest / Disease
Name of Pesticide
Dose/lit
er
Flea beetle & Thrips
Imidachlopride 17.8 SL
0.30 ml
Flea beetle & Thrips
Chlothianidin 50 WDG
0.12 gm
Flea beetle & Thrips
Lambda cyhalothrin 5 EC
0.50 ml
Flea beetle & Thrips
Thimethoxam 25 WG
0.25 gm
Downy mildew
Metalaxil M-4 + Mancozeb 64 WP
2.5 gm