PENGARUH KONSENTRASI PACLOBUTRAZOL TERHADAP PERTUMBUHAN DAN HASIL TANAMAN MENTIMUN (Cucumis sativus L.) KULTIVAR VENUS

Abstract

ABSTRACT

 

The purpose of this study was to determine the effect of concentration of paclobutrazol on the growth and yield of cucumber (Cucumis sativus L.) Cultivar Venus.The experiment was conducted in the UPTD BPBP Plumbon District Cirebon. The location is  above 17 m at high of sea level, regosol field. The time of research was conducted on April until May 2013.

The method of this experiment used to experimental method with Randomized Block Design (RBD). The treatment used were six level of, concentration paclobutrazol, there are : 0 ml/l, 0,125 ml/l , 0,250 ml/l, 0,375 ml/l, 0,500 ml/l, and 0,625 ml/l. All of the treatment four repeated time. Observed variables were plant height, number of leaves, when first flowering, number of female flowers, number of fruits, length of fruit, diameter of fruit, fruit weight per plant and fruit weight per plot.

Results showed that the concentration of paclobutrazol significantly effect plant height, number of leaves, when first flowering, number of female flowers, number of fruits, length of fruit, diameter of fruit, fruit weight per plant and fruit weight per plot. Treatment D (paclobutrazol concentration of 0,375 ml/l of water) gave the highest yield of fruit weight per plot is equal to 11,28 kg (equivalent to 23,5 ton/ha), while the lowest yield obtained on treatment A (paclobutrazol concentration of 0 ml/l of water) is equal to 9,01 kg/plot (equivalent to 18,77 ton/ha).

Keywords : Paclobutrazol, Concentration, Cucumber