EFFECT OF SPACING ON GROWTH AND YIELD OF DIFFERENT VARIETIES OF KNOL-KHOL

Abstract

The experiment was conducted at Honiculture Farm, Sher-e-Bangia Agricultural University, Dhaka, during October 20 I0 to January 2011. The experiment was consisted of two factors, viz. lour varieties of Knol-khol (White Vienna, Big Ball, UFO and Early 005) and three spacing (30 em x 15 em, 30 ern x 20 ern, 30 em x 25 em). Result revealed that different varieties significantly influenced on growth parameter and yield of knollkhol. The maximum gross yield (74.93 t/ha) was recorded from the variety White Vienna. The maximum marketable yield (55.38 tlha) of Knol-khol was also obtained from the variety White Vienna. Different spacing also influenced significantly on most of the parameters under study. The spacing 30 em x 20 em showed better performances and the highest gross yield (66.28 tlha) as well as the highest marketable yield (48.32 tlha) were obtained from this spacing. Interaction effect of different varieties and spacing had a signiticant variation on yield contributing characters and yield of Knol-khol. White Vienna and spacing 30 cm x 20 cm gave the maximum gross yield (80.26 t/ha) and also the maximum marketable yield (59.90 t/ha). So the treatment combination White Vienna with 30 em x 20 em spacing is suitable for the maximum yield of Knol-khol.