IRRIGATION WITH WATER DEFICIT APPLYING MAGNETIC WATER ON SCARLET EGGPLANT

The work aimed to evaluate the effect of irrigation with magnetically treated water on development, growth, and yield of the scarlet eggplant (Solanum gilo Raddi) cv. Morro Grande, in two growing seasons (autumn and spring). A completely randomized design in a 3x2 factorial scheme with three replications for the first growing season and 2x2 with five replications for the second growing season was used. Each experimental unit consisted of four plants spaced 0.75 m between plants and 1.00 m between rows. Factors consisted of irrigation using magnetically treated water, untreated water, three replacement of the crop evapotranspiration (50%, 75%, and 100% ETc) for the first growing season and two replacement of the crop evapotranspiration (75% and 100% ETc) for the second growing season. Stem diameter (millimeters), plant height (centimeters), shoot dry matter (grams), first flower and fruit (accumulated degree-days), number of fruits, fruit yield per plant (grams), and average fruit mass (grams) were evaluated. The water with magnetic treatment provided better results for the development variables, first flower, and first fruit in the second growing season. However, for the variables, stem diameter, plant height, shoot dry matter, fruit yield, and number of fruits, only the replacement irrigation depth factor obtained higher values for the 100% ETc than water-deficit treatments

IRRIGATION WITH WATER DEFICIT APPLYING MAGNETIC WATER ON SCARLET EGGPLANT

The work aimed to evaluate the effect of irrigation with magnetically treated water on development, growth, and yield of the scarlet eggplant (Solanum gilo Raddi) cv. Morro Grande, in two growing seasons (autumn and spring). A completely randomized design in a 3x2 factorial scheme with three replications for the first growing season and 2x2 with five replications for the second growing season was used. Each experimental unit consisted of four plants spaced 0.75 m between plants and 1.00 m between rows. Factors consisted of irrigation using magnetically treated water, untreated water, three replacement of the crop evapotranspiration (50%, 75%, and 100% ETc) for the first growing season and two replacement of the crop evapotranspiration (75% and 100% ETc) for the second growing season. Stem diameter (millimeters), plant height (centimeters), shoot dry matter (grams), first flower and fruit (accumulated degree-days), number of fruits, fruit yield per plant (grams), and average fruit mass (grams) were evaluated. The water with magnetic treatment provided better results for the development variables, first flower, and first fruit in the second growing season. However, for the variables, stem diameter, plant height, shoot dry matter, fruit yield, and number of fruits, only the replacement irrigation depth factor obtained higher values for the 100% ETc than water-deficit treatments

JAPANESE CUCUMBER CROP UNDER DIFFERENT IRRIGATION DEPTHS IN GREENHOUSE

Japanese cucumber shows high economic value and short growth cycle, thus it is one of the most commonly grown vegetables in protected environment. This study aimed to evaluate the effect of irrigation depths in yield, growth and efficiency of water use in japanese cucumber cultivated in greenhouse. The experiment was conducted during winter and spring, at the Irrigation Technical Center of the State University of Maringá, located in Maringá, Paraná, Brazil. Four levels of replacement of crop evapotranspiration depths were tested (50, 75, 100 and 125% ETc). A completely randomized design with four replications was adopted. Harvest was performed between 33 and 96 days after transplanting, and the fruits were harvested on alternate days. The growth of the cucumber plants was evaluated measuring height, number of nodes and stem diameter. The results indicated that there was an increased linear response in yield and growth due to application of the irrigation depths. The results also indicated that the depth of 125% ETc obtained, on average, higher yield and growth, but it did not present the highest efficiency of water use, as this was ached with the depth of 50% ET