Crop physiology response to fungicides by cultivars differing in foliar disease resistance
1993
Williams, J.H. | Waliyar, F. | Subrahmanyam, P.
Crop growth rate, pod growth rate, and partitioning were all influenced by both the variety and the chemical control of the foliar diseases in groundnut. The increased green leaf area duration associated with resistance was similar to that obtained by fungicide spray on a susceptible line. Variations in green leaf area duration were related to pod growth rate for susceptible lines but not for resistant lines. High partitioning and resistance to rust were not mutually exclusive, but differences in susceptibility to the leafspots seem negatively associated with the partitioning. Green leaf area duration data showed that lines previously not considered to have resistance to leaf spots differed in their susceptibility to these diseases, having higher yield because of moderate protection of the canopy
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