Scientific Publication

Node inoculation: A quick and easy technique to screen pigeonpea for resistance to Phytophthora blight

author(s) Chand, R - Singh, C K - Singh, V - Singh, J - Sharma, M
from International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)
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Chand, R and Singh, C K and Singh, V and Singh, J and Sharma, M (2017) Node inoculation: A quick and easy technique to screen pigeonpea for resistance to Phytophthora blight. Journal of General Plant Pathology. pp. 1-4. ISSN 1345-2630

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Abstract

The petiole on pigeonpea was removed for easy, precise inoculation of node with Phytophthora drechsleri f. sp. cajani. After node inoculation, 96.0% plants were infected compared with 89.0% after stem-cut inoculation. Among various nodes inoculated on 30-day-old plants, the 5th node had the greatest relative susceptibility (90.0%), followed by the 3rd node (78.0%). This technique was validated on different cultivars (ICP 7119, Bahar, MA 6 and MAL 13), and 586 lines were successfully screened in the field, confirming the rapidity and effectiveness of the technique for resistance screening

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