QUALIDADE DE CULTIVARES DE ALFACE PRODUZIDA EM CONDIÇÕES SALINAS
2009
ALCIONE GUIMARÃES FREIRE | FRANCISCO DE ASSIS DE OLIVEIR | MARIA JOSÉ SÂMARA DE OLIVEIRA CARRILHO | MYCHELLE KARLA TEIXEIRA DE OLIVEIRA | DJANIRA COSTA DE FREITAS
Objective of this study quality of lettuce cultivars under saline stress, in an experiment carried out in a greenhouse. The experiment was carried out in a completely randomized design, in scheme factorial 5 x 5, with three repetitions. The treatments were five levels of salinity of irrigation water (0.5; 1.5; 2.5; 3.5 and 4.5 dS m-1) and five lettuce cultivars (Mônica SF31, Grandes Lagos 659, Veneranda, Folha Roxa Quatro Estações e Stella). The quality characteristics evaluated in the lettuce leaves were: pH, total soluble solids (TSS), titrable total acidity (TTA) and vitamin C. The analysis of the results allowed concluding that the interaction between the factors salinity and cultivars was significant. The parameters of quality were significantly affected by salinity, however, the intensity of this effect varied with the cultivar used.
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