Is bushel a word in the Scrabble Dictionary

Yes, bushel is playable

...and is worth 13 points.

Found in the following dictionaries

Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)

"Bushel" Definition

noun

A container with the capacity of a bushel.
A unit of volume or capacity in the British Imperial System, used in dry and liquid measure and equal to 2,219.36 cubic inches or 36.37 liters. See Table at measurement.
A unit of volume or capacity in the U.S. Customary System, used in dry measure and equal to 4 pecks, 2,150.42 cubic inches, or 35.24 liters.
Informal A large amount; a great deal: We have bushels of time, so relax.
Any of various units of dry capacity .

verb-transitive

To alter or mend (clothing).