Abstract
A two year (2008 and 2009) open field experiment was conducted to study the effect of irrigation on the yield parameters and fruit components of processing tomato. Two different treatments were applied: regularly irrigated (RI), irrigation cut-off 30 days before harvest (CO), compared with unirrigated control (RF). The optimal water supply was calculated from average daily temperature. The aims of the study were to investigate the effect of different water supply on yield quantity. The regularly irrigated plant stands gave significantly higher yield, and unirrigated plants showed yield loss.Water supply had strong positive (R2=0.81) effect on marketable yield and average fruit weight (R2=0.78). Linear regression showed, that 46.5 mm more water supply caused 10 t/ha more marketable yield, and 13.4 mm more water supply caused 1 g more in the average fruit weight. The irrigation increased the Brix yield as well.
Highlights
Materials and methodThe importance of tomato cultivation has been growing rapidly in the last decades in the world
Processing tomato cultivation is only profitable in Hungary if the yield is over 45–55 t/ha (Fruitveb, 2008), but the optimal yield depends on element of growing technologies, like plant propagation, irrigation method and the use of hybrids (Helyes et al 2006)
There were significant differences between the control and irrigated plant stands according to the water supply which was formulated the canopy values
Summary
Materials and methodThe importance of tomato cultivation has been growing rapidly in the last decades in the world. The processing tomato cultivation has changed a lot recently, the production areas were decreased, but the yield is getting higher. Processing tomato cultivation is only profitable in Hungary if the yield is over 45–55 t/ha (Fruitveb, 2008), but the optimal yield depends on element of growing technologies, like plant propagation, irrigation method and the use of hybrids (Helyes et al 2006). Ecological conditions e.g. solar radiation, temperature and precipitation take a great effect on tomato yield (Helyes & Varga, 1994, Helyes et al, 1999, Pék et al, 2008).
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