1616 COUDERC (1616C) is a V. longii x V. riparia cross bred in 1882 by Georges Couderc to produce a low-vigour rootstock with high nematode and phylloxera tolerance, says Dr Richard Smart (2015, p628), who adds that 1616C is best suited to more humid soils, and brings ripening forward.


Dr Richard Smart in the Oxford Companion to Wine 4th edition ed. Jancis Robinson MW and Julia Harding MW (Oxford University Press, 2015, p628.