EFFECTS OF DIFFERENT IRRIGATION SCHEDULING AND SYSTEMS ON YIELD RESPONSE OF MELON AND CUCUMBER

P. Mannini
The trials on cucumber (1982–1984) and melon (1983–1984) were conducted in a cold greenhouse near Ravenna, in northeast Italy on the Adriatic coast. Two irrigation systems (trickle and perforated hose), two intervals (3 and 6 days), and different ETM restitution rates - estimated by Class A evaporimeter in the greenhouse and crop coefficients - were compared. The soil was sandy and both crops were mulched.

Melon. The irrigation system had no effect on this crop. However, the shorter interval (3 days) combined with full ETM restitution noticeably increased yield, i.e. higher fruit number and greater average fruit weight. In contrast, the longer interval (6 days) combined with full ETM restitution resulted in a significantly lower yield.

Low water restitution rates (33%) gave higher yields in the first 15–20 days of picking, although this effect did not prove to be economically advantageous.

Cucumber. The best yield response in all three years was obtained with 150% estimated ETM restitution, equal to a seasonal volume of 3600–4200 m3/ha. The irrigation system and interval had no effect on yield or other observed parameters.

The yield of the 150% ETM restitution rate was evidenced by a higher fruit number and greater average fruit weight. This trial enhanced the early ripening period by reducing the number of ripening days, while no negative effects on early ripening were observed.

Mannini, P. (1988). EFFECTS OF DIFFERENT IRRIGATION SCHEDULING AND SYSTEMS ON YIELD RESPONSE OF MELON AND CUCUMBER. Acta Hortic. 228, 155-162
DOI: 10.17660/ActaHortic.1988.228.16
https://doi.org/10.17660/ActaHortic.1988.228.16

Acta Horticulturae