EFFECT OF FERTILIZERS AND RIPEN-iS ON THE FRUIT SET AND YIELD OF CUCUMBER (Cuewnis sativus L.)

Abstract

A field experiment was conducted at the Horticultural Research Farm of Shcr-e-L3angla Agricultural University. Dhaka, during April to July 2006 to study the effects of' fertilizers and Ripen-b on the fruit set and yield of cucumber. The experiment was laid out in a Randomized Complete Block Design (RCJ3D) with three replications. The experiment consisted two factors viz. i) Fertilizers (control. 30 ton cow dung. 15 ton poultry litter, ISO kg Urea, 125 kg TSP and 100 kg MP per hectare, respectively) ii) Ripen-iS (0, 150, 300 and 450 ppm, respectively). The individual and combined effects of fertilizers and growTh regulator (Ripen-15) on fruit set and yield of cucumber plants were studied. The individual and combined effects of fenilir (organic and inorganic) and growth regulator (Ripen-IS) on fruit set and yield of cucumber was found significant. Individually Inorganic fertilizer (Urea @ 150 kg/ha, TSP @ 125 kg/ha and MP @ 100 kg/ha) and 300 ppm "Ripen-I 5"gave the maximum nuniber(malc-59.47 and female- 17.65) of flowers, highest number of fruits (15.34), highest fruit length( 16.30cm). highest fruit diameter (5.69cm), highest fruit weight(412.90g), highest fruit weight per plant (4.78kg) and the highest yield (52.6411ha). In case of' plant growth regulators 300 ppm Ripen-1 5 the maximum number (maie-59.47 and female-17.65) of flowers, highest number of fruits (11.33), highest fruit length (15.33cm). highest fruit diameter (4.80cm). highest fruit weight (302.90g), highest fruit weight per plant (3.27kg) and the highest yield (35.15tJha) The treatment combination of inorganic fertilizer (Urea @ 150 kg/ha, TSP @ 125 kg/ha and MP @ 100 kg/ha) + 300 ppm "Ripen-IS" gave the maximum (male-63.33 and fernale-20.33) number of flowers per plant, highest number of fruits per plant (18.24), highest (17.27 cm) fruit length highest fruit diameter (6.1 em). highest fruit weight (433.3 g), highest fruit weight per plant (5.56 kg) and the highest yield (61.70 tIha).