TY - BP AU - Pietragalla,J. AU - Pask,A. TI - Chapter 18. Grain yield and yield components SN - 978-970-648-182-5 PY - 2012/// CY - Mexico, DF (Mexico) PB - CIMMYT KW - AGROVOC KW - Grain KW - Yields KW - Yield components T2 - Physiological breeding II : a field guide to wheat phenotyping ER -