|Author:||Vita Serman, F. ; Liotta, M. ; Parera, C.|
|Book Group Author:||NA|
The influence of different irrigation rates on commercial production and fruit quality of Vitis vinifera cv. Superior Seedless was evaluated in 3-year-old vines growing on an overhead trellis (2.8 m × 2.8 m) with trickle irrigation in Pocito, San Juan, Argentina. The crop evapotranspiration (ETc) was calculated using the daily evaporation of standard class A pan. The crop coefficient was adjusted from previous research. The soil water potential with a threshold of 40 kPa determined the irrigation schedule. The treatments evaluated were 100% of ETc (1), 80% of ETc (2), 70% ETc (3), and 60% ETc (4). There was a significant difference among treatments in the number of clusters and total commercial weight, where treatments 1 and 2 had significantly higher yield than 3 and 4. The number and weight of non-commercial clusters were significantly higher in treatments 3 and 4. When water use efficiency was analysed, non-significant differences among treatments were observed. These preliminary data showed a high sensitivity of Superior Seedless to water deficits.
|Pages:||183 - 186|
crop quality, crop yield, drought, fruits, grapes, plantwater relations, trickle irrigation, water stress, water use efficiency,Argentina, Vitis, Vitis vinifera, Vitidaceae, Rhamnales, dicotyledons,angiosperms, Spermatophyta, plants, eukaryotes, Vitis, South America,America, Developing Countries, Threshold Countries, Latin America,Vitaceae, Horticultural Crops (FF003) (New March 2000), Plant WaterRelations (FF062), Plant Production (FF100), Environmental Tolerance ofPlants (FF900), Soil Water Management (Irrigation and Drainage) (JJ800)(Revised June 2002) [formerly Soil Water Management], Crop Produce(QQ050), Food Composition and Quality (QQ500)