Cucumber response to different growing seasons and nitrogen doses

Abstract

The purpose of this study was to verify the effect of growing season and nitrogen doses on the pickling cucumber. This work was carried out in a greenhouse at the Federal Institute of Goiás (IF Goiano) - Campus Urutaí. A randomized block design in a 2 x 5 factorial scheme with four replications was used. Two growing seasons (the first sown in January and second in April) and five nitrogen doses (0, 50, 100, 150, and 200 kg ha-1 of N) were evaluated. The seed of pickling cucumber used was the Kybria F1 hybrid. Nitrogen doses were applied at 15, 30, and 45 days after plant emergence. Each plot was composed of 10 plants, and the four central plants of each plot with a spacing of 0.2 m between plants and 0.8 m between rows were evaluated. Leaf nitrogen content, relative chlorophyll index, stem diameter, length and diameter of fruits, fresh and dry matter of fruits, the fresh matter of shoot, number of fruits, and yield per plant were evaluated. The growing seasons and nitrogen doses influenced the productive traits of the cucumber crop. The first growing season of the cucumber crop shows satisfactory results in terms of yield components at a dose of 100 kg ha-1 of nitrogen.