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recent incursion of the barley disease ramularia has not been fully delimited around the areas of confirmed occurrence. as this disease can spread through infected seed, growers in these regions will need information on the relative risk of saving seed for planting the following year. other regions that currently have had no positive recordings will need to be surveyed to ensure that these areas are currently free from ramularia. ramularia in the northern hemisphere and new zealand has recently increased in pathogen aggressiveness, decreased in fungicide sensitivity and caused epidemics in germany. determining the occurrence of ramularia across the australian grain belt will inform the level of disease management options required including seed hygiene, fungicide and pre-breeding investments.
falling number fn is a global industry standard used to quantify detrimental pre-harvest sprouting phs in wheat, as early release from seed dormancy leads to significant effects on end product quality. however, a low falling number can also be caused by the trait of late maturity alpha-amylase lma, with some wheats having a genetic predisposition to accumulate low levels of starch digesting enzymes during grain filling in the absence of sprouting. lma susceptibility is currently a classification criterion for milling wheat in australia. due to the cost involved in the current lma susceptibility screen, it is currently employed at a late phase in the breeding pathway of australian wheat breeding programs, which significantly restricts genetic gains for yield and other traits in australian wheat varieties.
falling number fn is a global industry standard used to quantify detrimental pre-harvest sprouting phs in wheat, as early release from seed dormancy leads to significant effects on end product quality. however, a low falling number can also be caused by the trait of late maturity alpha-amylase lma, with some wheats having a genetic predisposition to accumulate low levels of starch digesting enzymes during grain filling in the absence of sprouting. lma susceptibility is currently a classification criterion for milling wheat in australia.