Effect of harvesting time on yield and quality of carrot

Abstract

Abstract : An experiment was carried out to evaluate the effect of harvesting time on the growth and yield of carrot in the research field of the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during November 2006 to May 2007. The experiment consisted of four harvesting times viz., 75, 90, 105, and 120 days after sowing. The experiment was laid out in Randomized Complete Block Design with three replications. All the tested parameters were significantly influenced by different days to harvesting. The maximum individual root weight (144.05g) and root yield (31.68 t/ ha) of carrot were obtained at 120 days of harvesting and minimum at 75 days of harvesting. The percentage of cracking (6.07) and rotting of carrot root (9.61) were lower in early harvest and it was gradually increased with delay of harvesting. The root yield, beta- carotene content, total sugar content and dry matter content of carrot were positively correlated but ascorbic acid content was negatively correlated with days to harvesting.