The October contract of mustard seed on the NCDEX ended nearly 1% lower today because of expectations of higher stocks of the oilseed this season. The October contract ended at 3,744 rupees per 100 kg, down 0.9% from previous close. Inventories of mustard seed in February next year are estimated higher because of lower crushing due to sluggish exports in the oilseed year. In February this year, closing stocks of mustard seed from the old crop were estimated at 250,000 tonne.