Butler, D R and Jadhav, D R (1991) Requirements of leaf wetness and temperature for infection of groundnut by rust. Plant Pathology, 40 (3). pp. 395-400.
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Abstract
Experiments are described to quantify the effects of temp. and duration of leaf wetness on infection of groundnut by Puccinia arachidis. After inoculation, a min. period of leaf wetness, m, was necessary for infection. When leaf wetness duration was >m, lesion density increased with increasing wetness duration to an asymptote, Dmax. The principal effects of temp. were on m and Dmax. The value of m decreased linearly from 6 h, as temp. increased from 15 to 25°C and increased slightly at temp. >25°. Dmax increased with temp. from zero at 8° to a max. at 22°, and decreased to zero again at c. 30°. The experimental results were used to produce a set of curves relating an infection index to leaf wetness duration at different temp. The implications for infection of groundnut crops are discussed in relation to the climate at Patancheru in southern India.
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Mandate crops > Groundnut |
| Depositing User: | Library ICRISAT |
| Date Deposited: | 15 Sep 2011 03:30 |
| Last Modified: | 15 Sep 2011 03:30 |
| URI: | http://oar.icrisat.org/id/eprint/1467 |
| Official URL: | http://dx.doi.org/10.1111/j.1365-3059.1991.tb02396... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | UNSPECIFIED |
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