You are here

main season wheat variety

Catalogue: GRDC Updates
Relationship between growth stage and accumulated uptake of nitrogen by a wheat crop, expressed as a percentage of the total uptake... Optimising N supply is difficult in western regions given the highly variable seasons. Excessive application of N may increase water use early in the growing season leading to greater water stress during flowering and grain fill, resulting in poor grain set or shrivelled grain... There was no significant effect of N rate on grain yield but the effect on protein was significant with protein increasing with rates of applied N. As for the sowing time trial, there was a negative correlation between grain yield and grain protein concentration, and Gregory did not differ from other varieties...
Related categories:
Catalogue: GRDC Updates
In response NVT took the initiative in 2010 of increasing the number of replicates of each variety at some sites and spraying two replicates with in-crop foliar fungicides to primarily control stripe rust and leaving the other two replicates unsprayed... We used some of this data (all available on the internet at www.nvtonline.com.au ) to address the issue of at what resistance rating does it become not economical to manage stripe rust... Yield responses observed in these NVT trials were generally obtained using a relatively expensive two spray program...
Related categories:

Associated key phrases