Effect
Kelpak treated Zucchini, cv. Giulia, grown under 4 different levels of salt stress had on average a 12 % higher yield, 12.3 % more fruits, 1.9 % heavier fruits (ns), 17.4 % more shoot biomass, 4.4 % more root biomass (ns), fruits had 6.6 % more dry matter and contained 13 % more total soluble solids, 3.2 % more P (ns), 7.9 % more K (ns) and the same amount of Ca en Mg, leaves and roots contained 4.2 % more N (ns), 6.8 % more P (ns), 1.4 % more K (ns), 0.7 % less Ca (ns), 6.8 % less Mg (ns), 9 % less Na (ns) and 1.5 % less Cl (ns), leaves had a 11.1 % bigger area and a 7.9 % higher SPAD value compared to the untreated control grown in the same conditions. There wasn't a significant interaction between the effect of the biostimulant and the level of salt stress.
