Nong ye ke xue yu ji shu, 2010, Vol.4 (4), p.26-36
2010
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Details
- Autor(en) / Beteiligte
- Titel
- Modelling Agronomically-Suitable Sowing Date in Relation to the Risk of Frost Damage and Heat Stress of Wheat in Southern New South Wales, Australia
- Ist Teil von
- Nong ye ke xue yu ji shu, 2010, Vol.4 (4), p.26-36
- Erscheinungsjahr
- 2010
- Quelle
- EZB Electronic Journals Library
- Beschreibungen/Notizen
- Sowing time of wheat in south eastern Australia varies from autumn to early winter, depending on the seasonal ＇break＇. Wheat yields are often reduced by frost damage at flowering time and by heat-and/or water-stress during grain filling. Selecting suitable varieties for specific sowing times is a complex decision farmers make because these varietal phenology and climate risks have to be assessed together. In order to help farmers make decisions, they need tools that simulate and analyse agronomically-suitable sowing dates （ASSD） for a given variety of wheat. The hypothesis underlining this study is the integration of a wheat phenology model with historical climate data is an effective approach to modelling the ASSD of current varieties used in the wheat growing areas of Southern NSW. The parameters of the wheat phenology model were based on data from five years of field experimentation across 15 sites. Data from four sites were used to examine varietal suitability in relation to sowing time and its associated