How much barley did Boaz put in Ruth's veil?

Six measures

Bring the vail that thou hast upon thee, and hold it. And when she held it, he measured six measures of barley, and laid it on her: and she went into the city. Ruth 3:15

(The New King James Version translates "six measures" as "six ephahs". If that is correct, then Boaz poured about 288 pounds (131 kg) into Ruth's shawl. She must have been in pretty good shape to carry so much weight. )