Lack of water and inadequate irrigation management can lead to water stress, which is a key disruptive factor in producing quality table grapes. The SANBIO ferti-activators can control biotic and abiotic stress and have positive impact to vegetative and resistive processes.
The aim of this study is to evaluate the effects of simultaneous use of different ferti-activators of SANBIO line on productivity of table grapes variety ´Muscat Italia´.
This project is being carried out within the collaboration between Laboratory of Plant Genetics and Molecular Biology, Department of Biotechnology and Plant Sciences, National Agronomic Institute of Tunisia, Winery Mongi Winich, Tunisia and SANBOS GmbH, Germany.
1. Materials and methods
Table 1. Basic data
|Location||Tunisia, Mornag, Southeast of Tunis City Picture 1: Vineyard|
|Organization||Laboratory of Plant Genetics and Molecular Biology, Department of Biotechnology and Plant Sciences, National Agronomic Institute of Tunisia Winery Mongi Winich|
|Trial field||1 block system, 2 ha|
|Method||spaced by 2,75*3 m, 1125 trees/ha|
|Irrigation||drip irrigation, water is not salty (<1g/L) and pH is 8 (slightly alcaline)|
|Test product||Sanbio EPSOMIT / PLANTA / VITAL, manufactured by SANBOS GmbH, Germany|
|Application||15/06/2015: 1 kg/ha SANBIO PLANTA 29/06/2015: 1 kg/ha SANBIO EPSOMIT 06/07/2015: 1 L/ha SANBIO VITAL 22/06/2015: 1.5 L/ha SANBIO VITAL All products have been applied onto ground and dilluted in 500 L/ha water.|
|Date of planting||2003|
|Date of application||06-07/2015|
|Date of harvest||09/2015|
Table 2. Productive performance
|Parameter||Unit||Control||SANBIO product mix|
Figure 1. Yield calculated as weight of table grapes (t/ha)
The yield calculated as weight of table grapes per hectare was increased by 15 t/ha, resp. +60% at the treated plot compared to untreated control lot.
Figure 2. Profitability by using of SANBIO product mix (local currency TND)
To summarize, the present study shows significantly positive effects by use of SANBIO ferti-activator mix on productive performance of table grapes.
The positive effects at glance:
- Significantly higher harvest of +60%
- Increase of size of grapes and berries
- Better quality of fruits (moulded berries, color)
- Higher sugar content
- High profitability with return-of-investment ROI=1:14.