Morphological and Physiological Traits of Assistance in the Selection of High Yielding Varieties of Durum Wheat (Triticum turgidum L. spp. Durum) for the Rainfed Mediterranean Environments of Central Chile

摘要

Chile has high potential to produce quality durum wheat; however, it is not self-sufficient. It is necessary to increase durum grain yield in the Mediterranean rainfed areas which are characterized by adverse environmental conditions, mainly, water deficit. The criteria normally used by breeders to select varieties of wheat for these environments are yield under stress and early flowering. The objective of this monograph is to propose that the selection of high yielding genotypes of durum wheat, under Chilean Mediterranean rainfed conditions, be assisted by morphological and physiological traits associated with yield in order to increase its heritability.