Yield Stability Across Sowing Dates: How To Pick A Winner In Variable Seasons?

GRDC - Felicity Harris and Hongtao Xing (NSW Department of Primary Industries, Wagga Wagga), David Burch (NSW Department of Primary Industries, Condobolin), Greg Brooke (NSW Department of Primary Industries, Trangie), Darren Aisthorpe (Department of Agriculture and Fisheries, Queensland), Peter Matthews (NSW Department of Primary Industries, Orange) and Rick Graham (NSW Department of Primary Industries, Tamworth).

Type: Research Paper
Knowledge level: Advanced

Farm Table says:

The authors of this paper note in the conclusion: "There were significant interactions between G × E × M, whereby genotypic responses to sowing date varied across sites in the NGR, and within seasons for varieties with varied phenology patterns. These findings indicate that the varieties tested are not broadly adapted to environment or management, and as such there is scope for growers to optimise grain yield through variety selection and management of sowing date by considering phenology responses and target OFPs." Please access the full paper via the link below if this research interests you.

The take home messages from this GRDC funded research are below. Please access the full paper via the link below for methodology, references, acknowledgements and discussion.

Take key messages from the paper include:

  • Match optimal flowering period to growing environment to maximise grain yield potential.
  • One variety doesn’t fit all; there are no commercially available varieties that are broadly adapted across a wide range of sowing times or growing environments.
  • Optimising variety phenology and sowing time combinations achieves grain yield stability across a wide sowing window.
  • Probability of sowing opportunities will influence variety choice and sowing time decisions.

2020 - Australia - GRDC - Felicity Harris and Hongtao Xing (NSW Department of Primary Industries, Wagga Wagga), David Burch (NSW Department of Primary Industries, Condobolin), Greg Brooke (NSW Department of Primary Industries, Trangie), Darren Aisthorpe (Department of Agriculture and Fisheries, Queensland), Peter Matthews (NSW Department of Primary Industries, Orange) and Rick Graham (NSW Department of Primary Industries, Tamworth).
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