Irrigation water requirement for surface drip irrigated Thompson Seedless vines on Dogridge (based on pan evaporation) without mulch/ antitranspirant (without mulch and antitranspirant)
|
Growth Stage |
Expected duration (days after pruning) |
Water requirement (litres/day/hectare per mm of evaporation) |
Month |
Expected Pan evaporation (mm) |
Approximate water (litres/ha/day) |
|
Foundation Pruning/ Back Pruning |
|||||
|
Shoot growth |
1-40 |
4200 |
April-May |
8-12 |
33,600-50,400 |
|
Fruit bud differentiation |
41-60 |
1400 |
May-June |
8-10 |
11,200-14,000 |
|
Cane maturity and Fruit bud development* |
61-120 |
1400 |
June-August |
0-6 |
0-8,400 |
|
121days - fruit pruning * |
121 - |
1400 |
August- Fruit pruning |
0-6 |
0-8,400 |
|
Fruit Pruning/ Forward Pruning |
|||||
|
Shoot growth |
1-40 |
4200 |
October- November |
8-10 |
33,200-42,000 |
|
Bloom to Shatter |
41-55 |
1400 |
November- December |
4-6 |
5,600-8,400 |
|
Berry growth and development |
56-105 |
4200 |
December - January |
3-6 |
12,600-25200 |
|
Ripening to Harvest |
106- harvest |
4200 |
January - March |
8-10 |
33,600-42,000 |
|
Rest period |
Harvest to Foundation pruning |
- |
March-April |
8-10 |
- |
* Stage coincides with the rainy season. Irrigation may not be required based upon the soil type. Irrigation water used for above trial had EC 1.8 dS/m