Victorian wheat yield trends, 1898-1977
O'Brien, L.
Victorian wheat yield trends, 1898-1977 - 1982 - Printed
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.
English
Crop losses
Disease resistance
Economics
Varieties
Victoria
Yield components
Yield factors
Yield forecasting
Wheat
Yields
Victorian wheat yield trends, 1898-1977 - 1982 - Printed
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.
English
Crop losses
Disease resistance
Economics
Varieties
Victoria
Yield components
Yield factors
Yield forecasting
Wheat
Yields