The Influence of Plant Density upon Corn Salad (Valerianella olitoria L.) Production, in Protected Culture

  • Alexandru Silviu APAHIDEAN
  • Jolan SZABO
  • Dănuț MÄ‚NIUÈšIU
  • Rodica SIMA
  • Alexandru Ioan APAHIDEAN
  • Eniko LACZI
Keywords: corn salad, cultivar, density, green vegetables, protected culture


Corn salad (Valerianella olitoria), is part of green vegetables group and is used fresh or insalads. It contains high quantities of vitamins A and B1, minerals like Ca, Mg, K, Fe, Zn,carbohydrates and it is an important source of fibres. It can be grown in open field (in autumn andspring) by direct sowing, and also in protected spaces (in short day conditions) by seedlings. Plantdensity has a direct influence upon production. During the present study, conducted at Cluj-Napoca(Romania), in 2011, in early protected culture, three cultivars were used: D’Olanda, Madarsalata, Cornsalad. In order to produce seedlings, three, five and seven seeds/cube where used and the planting wasdone with 10 and 15 cube/m2. The experiment had multiple factors and 18 experimental variantsresulted. The obtained yield was higher at Corn salad cultivar, when there were used seven seeds/cubeand there were planted 15 cubes/m2