Opening Address and GRDC Vision
نویسنده
چکیده
Sunflower has historically been an important crop in Central Queensland. In recent years the sunflower area in Central Queensland has been reduced due to low and variable prices and increased competition from alternate summer crops. Issues of tall persistent stubble that provides little ground cover and a lack of in-crop weed control options have also contributed to declining popularity of sunflower in an area where adoption of zero tillage practices continues to increase. However, recent improvements in farming practices have impacted favourably upon sunflower production and profitability, and while sunflower faces challenges, it is a valuable option Central Queensland farmers should retain.
منابع مشابه
Multiple mechanisms are used for growth rate and stringent control of leuV transcriptional initiation in Escherichia coli.
Expression of the Escherichia coli leuV operon, which contains three tRNA(1)(Leu) genes, is regulated by several mechanisms including growth-rate-dependent control (GRDC) and stringent control (SC). Structural variants of the leuV promoter which differentially affect these regulatory responses have been identified, suggesting that promoter targets for GRDC and SC may be different and that GRDC ...
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