Suitability of lamb lettuce cultivars for spring and autumn growing
2003
Kolota, E. | Adamczewska-Sowinska, K.
The yield and nutritional value of six Dutch and French cultivars of lamb lettuce, grown for early spring and autumn harvest were estimated in the greenhouse study conducted at Piastów Horticultural Research Station belonging to Agricultural University of Wroc³aw in 1998-1999. Among cultivars tested, the highest marketable yield in spring (7-9 April) was obtained from Trophy (Clause) and Baval (Aveve) cultivars. Both these cultivars also showed a high suitability for autumn harvest, being out-performed only by Cirilla (Rijk Zwaan). Lamb lettuce harvested in the spring season contained higher amounts of vitamin C, potassium and nitrates. When grown in autumn, higher contents of dry matter, phosphorus and magnesium were obtained. The chemical composition of tested cultivars was variable depending on the length of the plant growing period.
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