Long-Time Trends in Grain Yields of Five Rice Varieties1
- C. Roy Adair,
- E. M. Cralley and
- T. H. Johnston2
The average yields of Fortuna increased each 7-year period of the 28 years. The 7-year average yields of the 4 varieties susceptible to diseases present during the period varied according to prevalence or control of specific diseases. White tip control appears to be necessary to get a maximum response from nitrogen fertilizer in susceptible varieties. Short or long term yields may be a poor basis for predicting comparable yields of rice varieties that differ in disease reaction.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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