'Barley harvest' in the Bible

So Naomi returned, and with her Ruth the Moabitess, her daughter-in-law, who returned from the land of Moab. And they came to Bethlehem at the beginning of barley harvest.

So she stayed close by the maids of Boaz in order to glean until the end of the barley harvest and the wheat harvest. And she lived with her mother-in-law.

Then he gave them into the hands of the Gibeonites, and they hanged them in the mountain before the Lord, so that the seven of them fell together; and they were put to death in the first days of harvest at the beginning of barley harvest.