Vineyards: Is there a better direction for the rows in a vineyard to run: north/south? east/west?

Question

Vineyards: Is there a better direction for the rows in a vineyard to run: north/south? east/west?

Answer 1

Where I lived in Washington state they planted them so the sides were east/west (ends were north/south).  It provides more sunlight and less shadow.  If the sun rose and set at the ends it would only hit the outer most leaves.

Answer 2

For all fruits and vegetables, run the rows north to south to avoid one row shading the next.

Answer 3

yup rows run north south