|Author:||Restuccia, G. ; Marchese, M. ; Mauromicale, G. ; Restuccia, A. ; Battaglia, M.|
|Book Group Author:||NA|
A study was conducted to analyse the influence of irrigation water regime and water salinity on yield and fruit quality of a tomato crop (Marmande Raf) growing in an unheated plastic greenhouse. Two salinity levels of irrigation water (electrical conductivity (EC)=1.6 and 6.0 dS m-1, respectively) and two irrigation regimes (100% of maximum evapotranspiration (ETM) and 100% ETM plus leaching requirements (Lr)) were studied. The total yield accumulated over the harvest periods was significantly higher for 1.6 dS m-1 than 6.0 dS m-1 and for 100% ETM+Lr than 100% ETM. Nevertheless, when plants were irrigated with both high saline concentration of water and high water supply (100% ETM+Lr), crop yield was similar to that observed on plants grown under low salinity (1.6 dS m-1) and 100% ETM but without considering Lr requirements. Fruit quality (dry matter content, reducing sugar concentration, titratable acidity and firmness) was improved with greater salinity, but was unaffected by water irrigation regime with the exception of dry matter. These results suggest that using an irrigation regime equivalent to 100% ETM+Lr reduces the negative influence induced by high salinity of the irrigation water on yield, while maintaining the beneficial effect on fruit quality.
|Pages:||699 - 704|
chemical composition, crop quality, crop yield, dry matter,dry matter accumulation, electrical conductivity, evapotranspiration,firmness, fruits, greenhouses, irrigation, irrigation water, leachingrequirement, plant composition, protected cultivation, reducing sugars,saline water, salinity, titratable acidity, tomatoes, water supply,Lycopersicon esculentum, Lycopersicon, Solanaceae, Solanales,dicotyledons, angiosperms, Spermatophyta, plants, eukaryotes, chemicalconstituents of plants, cultivation under glass or plastic, glasshouses,salt water, water supplies, watering, Horticultural Crops (FF003) (NewMarch 2000), Plant Production (FF100), Soil Chemistry and Mineralogy(JJ200), Soil Water Management (Irrigation and Drainage) (JJ800)(Revised June 2002) [formerly Soil Water Management], Crop Produce(QQ050), Food Composition and Quality (QQ500)