Plants of Lactuca sativa L. var. acephala cv ‘Green Salad Bowl’ were grown in a in floating system during spring and summer season to investigate the influence of macro-anion (NO3 -, H2PO4 -, and SO4 2- ) and macro-cation (K+, Ca2+, and Mg2+) proportions in the nutrient solut ion on yield and leaf qual i ty. Marketable yield, shoot biomass and leaf area index were unaffected by nutrient solution composition. A high proportion of calcium in the nutrient solution increased the quality attributes in particular calcium, chlorophyll, and carbohydrate concentrations. Plants grown in the spring season exhibited a lower yield, growth (total dry biomass and leaf area index), leaf mineral content (N, K, and Mg), total carotenoids and water use efficiency than those grown in the summer season but influenced positively some quality parameters (higher content of carbohydrate and lower nitrate content).
Influenza delle proporzioni dei macronutrienti nella soluzione e della stagione di coltivazione su produttività e qualità della lattuga coltivata in idroponica / Colla, G.; Fallovo, C.; Cardarelli, M.; Rouphael, Youssef; Rea, E.; Salerno, A.; Battistelli, A.. - In: ITALUS HORTUS. - ISSN 1127-3496. - 17:3(2010), pp. 99-103.
Influenza delle proporzioni dei macronutrienti nella soluzione e della stagione di coltivazione su produttività e qualità della lattuga coltivata in idroponica
ROUPHAEL, YOUSSEF;
2010
Abstract
Plants of Lactuca sativa L. var. acephala cv ‘Green Salad Bowl’ were grown in a in floating system during spring and summer season to investigate the influence of macro-anion (NO3 -, H2PO4 -, and SO4 2- ) and macro-cation (K+, Ca2+, and Mg2+) proportions in the nutrient solut ion on yield and leaf qual i ty. Marketable yield, shoot biomass and leaf area index were unaffected by nutrient solution composition. A high proportion of calcium in the nutrient solution increased the quality attributes in particular calcium, chlorophyll, and carbohydrate concentrations. Plants grown in the spring season exhibited a lower yield, growth (total dry biomass and leaf area index), leaf mineral content (N, K, and Mg), total carotenoids and water use efficiency than those grown in the summer season but influenced positively some quality parameters (higher content of carbohydrate and lower nitrate content).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
