Fig. 9. Average bread wheat and durum wheat yields in on-farm trials conducted in the Yaqui Valley of Sonora, Mexico. Data from K.D. Sayre (unpublished data, 1999).
Fig. 9. Average bread wheat and durum wheat yields in on-farm trials conducted in the Yaqui Valley of Sonora, Mexico. Data from K.D. Sayre (unpublished data, 1999).