7th International Cereal Nematodes Symposium at New Delhi, India to combat nematode problems in cereal crops

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Uma Rao, Tushar K. Dutta, Vishal S. Somvanshi and Abdelfattah A. Dababat contributed to this story.

Participants of the 7th International Cereal Nematodes Symposium at New Delhi, India, November 3-6, 2019

Fifty delegates from across the globe recently gathered at the 7th International Cereal Nematode Symposium in New Delhi, India to discuss the spread of cereal nematodes, strategies to lessen their impact on crops and ways to boost international collaboration on research.

Nematodes, microscopic plant parasites that include the Heterodera species of cereal cyst nematode and the Pratylenchus species of root lesion nematodes, are widespread in wheat production systems throughout West Asia, North Africa, parts of Central Asia, northern India, and China, and pose a grave economic problem for wheat production systems globally.

The International Maize and Wheat Improvement Center (CIMMYT) and the Turkish Ministry of Agriculture and Forestry have been working over the last 12 years —  in collaboration with the International Center for Agriculture in the Dry Areas (ICARDA), national program partners, and research institutions in Australia and Europe – to understand the importance and distribution of these species of cereal nematodes, as part of the ICARDA-CIMMYT Wheat Improvement Program (ICWIP).  

“Because cereals are the staple food for the majority of the world’s population, cereal nematodes pose an enormous threat to global food security,” said Abdelfattah Dababat, leader of CIMMYT’s Soil Borne Pathogens Program.

“The symposium allows scientists from around the world to share their findings, lessons and strategies to combat this threat.”

The symposium, organized by ICWIP and hosted by the Division of Nematology at the ICAR- Indian Agricultural Research Institute (IARI), was held November 3-6 at New Delhi’s National Agricultural Science Complex. The conference was inaugurated by Dr. Trilochan Mohapatra, Director General of ICAR & Secretary DARE, Government of India. It included sessions on the global status and distribution of cereal nematodes, their economic importance and population dynamics, management strategies both with and without using host resistance, the genomes and parasitism genes of cereal nematodes, and the use of molecular tools for cereal nematode research.

Among the notable global developments shared, highlights included the following.

  • Scientists from Turkey, Syria, Iran and Israel described the distribution and management status of Heterodera spp. in their region.
  • Hendrika Fourie from South Africa’s North West University, and colleagues, discussed the nematode problems in South Africa.
  • Rebecca Zwart and Senior Research Scientist Grant Hollaway, from the University of Southern Queensland, Australia, presented findings on the Pratylenchus menace in wheat in Australia.
  • Uma Rao, a co-organizer of the symposium from IARI, and colleagues, discussed the deployment of molecular tools to manage the problem of the Meloidogyne graminicola nematode in rice-wheat cropping systems.   
  • Richard Sikora, from the University of Bonn, Germany, summarized the current challenges in nematology, especially pertaining to wheat and maize, and reiterated the need for new technologies and management approaches for the small- and medium-sized farms of the future. He also highlighted the role of remote sensing in detecting nematode diseases.
  • A.K. Singh, Joint Director of Research at IARI gave a formal presentation on molecular breeding of Basmati rice.

Trilochan Mohapatra, Director General of ICAR & Secretary Dare, and Arun K. Joshi from CIMMYT’s India office were among the other distinguished speakers. 

Following the symposium, participants observed nematode-related research work underway at IARI’s Division of Nematology, the largest nematology center in India. They also visited the IARI museum and the institute’s Division of Entomology.

Symposium supporters include CIMMYT, the CGIAR Research Program On Wheat, the Indian Council of Agricultural Research (ICAR), the Borlaug Institute for South Asia (BISA), the Indian Agricultural Research Institute (IARI), the Republic of Turkey’s Ministry of Food, Agriculture and Livestock, Corteva, Syngenta, and the Plant Breeders Union of Turkey (BISAB). Previous symposiums have been held in Turkey, Austria, China and Morocco.

Release of the Abstract book during 7th International Cereal Nematodes Symposium at New Delhi, India, November 3-6, 2019

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