Journal article

Rate and duration of grain filling and grain nitrogen accumulation of wheat cultivars grown in different environments

JF Panozzo, HA Eagles

Australian Journal of Agricultural Research | CSIRO PUBLISHING | Published : 1999


In Australia, the period during grain filling for wheat (Triticum aestivum L.) is often associated with increasing ambient temperatures and diminishing soil moisture conditions. This can affect grain size and grain protein concentration. In this study, grain filling and nitrogen accumulation were investigated by sampling every 7 days during grain filling for 4 cultivars: Rosella, Hartog, Halberd, and Eradu. The plants were grown in trials with and without irrigation in 1991 and 1992, which were seasons with divergent temperatures and rainfall during this period. A4-term logistic function, using both days after anthesis (DAA) and growing degree days (GDD), was fitted to data to estimate maxim..

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