Abstract
Wheat breeding continues to be an important component of agricultural innovations in the Great Plains region of the US. This paper reviews Oklahoma’s wheat breeding program over the past several decades with an emphasis on the economic aspects and planning of future breeding strategies. Over the past century, Oklahoma’s wheat yields have increased but the productivity gains have been offset in part due to increased yield variability. The shift to improved wheat varieties has resulted in increased susceptibility to plant disease and pest pressure. While a few varieties introduced over the past few decades have dominated the wheat seed market, recent trends indicate producers are adopting a more diverse range of wheat varieties. Producers’ concerns have expanded beyond demands for high yielding varieties to include more market oriented needs to increase protein content and test weight. This paper identifies several key policy instruments that Oklahoma stakeholders and policy makers should consider when planning future breeding strategies. A critical need is to assist Oklahoma producers in adapting to climate change by developing drought and heat resistant wheat varieties. Marketing new varieties would be improved and revenue increased if more innovative pricing structures were adopted to better align producers’ willingness to pay with seed development costs, which could then be re-invested in breeding. Research budgets, which have remained stagnant in real terms, will need to be increased to adequately address producers’ needs into the 21st century.
Highlights
IntroductionWheat is one of the main staple foods for feeding human populations throughout the world [1]
Wheat is one of the main staple foods for feeding human populations throughout the world [1].Global wheat demand is expected to increase by an estimated 70 percent over the few decades (2020–2050) as human population pressure and rising income levels dramatically increase household consumption [2]
The following is a review of the legacy of wheat varieties that have been developed several decades
Summary
Wheat is one of the main staple foods for feeding human populations throughout the world [1]. Global wheat demand is expected to increase by an estimated 70 percent over the few decades (2020–2050) as human population pressure and rising income levels dramatically increase household consumption [2]. Even with anticipated productivity gains from the introduction of new technology, future wheat supply will have difficulty keeping pace with demand due to external factors such as climate change and shifts in consumer preferences towards starch based foods [4,5,6,7]. The prolonged growing season of winter wheat makes it susceptible to climate change through increased exposure to extreme weather events. In the Southern Plains of the US, additional freezing episodes in the fall, and winter and greater heat stress in the summer, are expected to have an overall negative effect on wheat yield [8]
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