Establishment of Some Technological Sequences for Medium-Long Fruit Cucumbers Cultivated in Greenhouses

SUMMARY In the experiment effectuated in 2007, at the Unive rsity of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, in a “Venlo” type greenhouse, the plant density and fructification managing on half long fruit cucumber s yield were studied. Observations regarding early and total yield as well as fruit co mmercial quality have been done. In the experience was used Alamir F 1, a cucumber hybrid produced by Dutch Nunhems company. A bifactorial experience was organized: Factor A ‐ pl ant density with 2 graduations: a 1 ‐ 16000 plants/ha; a2 ‐ 24000 plants/ha; and Factor B ‐ fructification m anaging with 2 graduations: b 1 ‐ fructification on main steam; b 2 ‐ fructification on main steam and on fruit bearin g springs. Variants with 24000 plants/ha density recorded yiel d increases about 52.4% for early yield and 44.3% for total yield comparative with variants with 16000 plants/ha density. Fructification managing influenced both early and t otal yield, differences of production between variants with fructification on main stem a nd on fruit bearing springs given the control (fructification on main stem) were signific ant respectively very significant. The combined influence of both factors influenced both early and total yield, the best results were obtained by variants with 24000 plants/ha irrespect ive of the fructification managing. Commercial quality of fruits was not significantly influenced neither by plant density nor fructification managing, the percent of first quali ty fruits from the total was between 68.94% and 74.72%.