Green Global
Foundation   Journal
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EFFECT OF SOWING DATE AND SPACING ON DRY MATTER PRODUCTION AND YIELD IN TROPICAL SUGAR BEET (Pages : 1 - 5)

A field experiment was conducted at the research farm of the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh from November 2011 to May 2012 with four sowing dates viz. 01 November, 15 November, 01 December and 15 December 2011 following four plant spacings viz. 50 × 25 cm, 50 × 20 cm, 40 × 20 cm and 40 × 18 cm to find out the optimum sowing date and spacing of sugar beet. Total dry matter production of sugar beet and its partitioning into root, petiole and leaf blade decreased with delay in sowing after 01 November. The highest total dry matter and root dry matter were recorded at the spacing of 50 × 20 cm, and petiole and leaf blade dry matter were recorded at the closest spacing of 40 × 18 cm when the plants were sown on 01 November. The individual root weight and root yield in sugar beet significantly decreased with delay in sowing after 15 November. The highest root weight (1154 g) and root yield (91.2 t ha-1) per plant were recorded at 165 days after emergence (DAE) from 01 November sowing at the spacing of 50 × 20 cm. Therefore, for optimum yield of tropical sugar beet in Bangladesh, the crop might be sown in early November with a spacing of 50 × 20 cm.Download