TY  - JA
AU  - O'Brien,L.
TI  - Victorian wheat yield trends, 1898-1977
PY  - 1982///
KW  - Crop losses
KW  - Disease resistance
KW  - AGROVOC
KW  - Economics
KW  - Varieties
KW  - Victoria
KW  - Yield components
KW  - Yield factors
KW  - Yield forecasting
KW  - Wheat
KW  - Yields
N2  - The history of wheat breeding in Victoria is described in terms of a study of yield trends between 1898 and 1977. The major trend was a decline in yield upto 1900 followed by a gradual increase to the present time. The halt of the yield decline in 1900 coincided with the introduction of fallowing and the use of superphosphate. The relative performances of a range of cv. were expressed asa percentage of the yield of cv. Olympic; the recently released cv. Egret and Condor were most productive, yielding 108% of Olympic. It was concluded that 33%of the overall improvement in yield observed since 1898 could be attributed to the introduction of new cv
T2  - Journal of the Australian Institute of Agricultural Science
ER  -