Effect of sowing density on morphological traits and yield of spinach in floating hydropon

Posljednjih je godina sve veća potrošnja svježeg mladog špinata i drugog rezanog lisnatog povrća. Upravo zbog toga često se konvencionalna proizvodnja špinata na tlu zamjenjuje hidroponskim uzgojem kojim se postižu veći prinos i bolja nutritivna kvaliteta. U proljetno-ljetnom roku uzgoja 2021. godine u plutajućem hidroponu testirane su 3 gustoće sjetve (21,3, 42,7 i 64,2 g/m2) špinata. Cilj istraživanja bio je utvrditi učinak gustoće sjetve na morfološka svojstva i prinos špinata. Tijekom jednokratne berbe špinata, provedene 32 dana nakon sjetve, analizirana su morfološka svojstva i određen je prinos. Nije utvrđen opravdan učinak gustoće sjetve na visinu rozete špinata, dok su kod ostalih morfoloških svojstava i prinosa utvrđene statističke razlike u testiranim tretmanima. Najveća masa rozete (6,5 g) utvrđena je pri najmanjoj gustoći sjetve, dok je pri najvećoj gustoći sjetve ostvaren najveći prinos (2 kg/m2).In past years, there has been an increasing consumption of fresh young spinach and other fresh-cut leafy vegetables. This is why conventional production is often replaced by hydroponic cultivation, which achieves higher yields and better plant quality. In the spring-summer cultivation period of 2021, three sowing densities (21.3, 42.7 and 64.2 g/m2) of spinach were tested. The aim of the research was to determine the effect of sowing density on morphological properties and yield of spinach. During a single harvest, carried out 32 days after sowing, morphological properties were analized and spinach yield was determined. No significant effect of sowing density on spinach rosette height was found, while statistical differences were determined for other morphological traits and yield among the tested treatments. The highest spinach rosette weight (6.5 g) was obtained at the lowest sowing density, while the highest yield (2 kg/m2) was achieved at the highest sowing density