2022 APSA Cucurbinars - Thank God It's Friday - Session 3 - Cucumber 30 September 2022 / 2:00 pm - 4:00 pm

APSA is happy to announce a brand new webinar series consisting of 6 sessions covering Cucurbit crops in Asia and Pacific Region (Watermelon, Melon, Bitter gourd, Cucumber, Pumpkin & Squash and other gourds). Each session is to be held on Friday each month from July to December 2022 at 14.00 - 16.00 hrs Bangkok time (ICT/GMT+7). 


2022 APSA Cucurbinars - Thank God It's Friday
Session 3 - Cucumber
30 September 2022 / 2:00 pm - 4:00 pm (GMT+7)

14.00 – 14.05

Opening of the Webinar
Dr G. Radhakrishnan,Member, APSA R&D Advisory Group

14.05 – 14.10

New variety releases or endorsements

14.10 – 14.35

“Occurrence and status of seedborne viruses infecting cucurbit in Indonesia”
Dr Sri Hendrastuti Hidayat, Professor of phytopathology / plant virology, expert in horticultural crops’ diseases, Bogor Agricultural University, Indonesia

14.35 – 14.45

Discussion and Q&A Session

14.45 – 15.10

“Breeding for climate resilient cucumber” 
Dr Tusar K Behera, Director, Indian Institute of Vegetable Research, Varanasi, India

15.10 – 15.20

Discussion and Q&A Session

15.20 – 15.45

“Genetic basis of downy mildew resistances in cucumber”
Dr. Yiqun Weng, Research Geneticist, USDA-ARS, Vegetable Crops Research Unit, Horticulture Department, University of Wisconsin, USA

15.45 – 15.55

Discussion and Q&A Session

15.55 – 16.00

Closing remarks
Dr G. Radhakrishnan,Member, APSA R&D Advisory Group
Promotion of the Cucurbinars TGIF Session 4 by APSA Secretariate


Dr Sri Hendrastuti Hidayat
Professor of phytopathology / plant virology, expert in horticultural crops’ diseases|
Bogor Agricultural University, Indonesia

Prof. Sri Hendrastuti Hidayat is based at IPB University in Bogor, Indonesia. She received her PhD degree from University of Wisconsin, Madison, USA and since then she has worked in the area of plant pathology.  Most recently she is working on viral diseases affecting horticultural crops including banana, papaya, chilli pepper, garlic and shallot.  She teaches training programs and many courses for undergraduate and postgraduate students at Department of Plant Protection, Faculty of Agriculture.  She is actively engaged in international research collaborations, among others with University of Queensland-Australia, World Vegetable Research-Taiwan, Washington State University-USA and Sungkyunkwan University-South Korea 

Dr Tusar K Behera
Indian Institute of Vegetable Research, Varanasi, India

Born at village Brahmapur, Dist. Balasore, Odisha and graduated from OUAT-Bhubaneswar, Odisha and Ph. D. from Indian Agricultural Research Institute, New Delhi and Post-Doctoral Fellowship programme at University of Wisconsin, USA. Presently he is working as the Director, ICAR-Indian Institute of Vegetable Research. Before joining as Director, he worked as scientist to principal scientist in Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, New Delhi. He also served as the Professor in the Discipline of Vegetable Science, P G School, IARI and Nodal Officer, ICAR-IARI-Jharkhand, Hazaribag.  

Prof. Behera is associated in breeding 23 varieties and hybrids in brinjal, cucumber and gourds those are released through CVRC and State Seed Sub-committee for Variety Release and Notification; few of them licensed to Pvt seed Companies. He isolated gynoecious lines in bitter gourd from its feral form, Momordica charantia var muricata and introgressed gy-1 gene into commercial cultivars bitter gourd those are licensed to Pvt. Seed companies through MOU. 
He introgressed gynoecious trait (F locus) in Indian cucumber using marker assisted back cross breeding (MABC). A bitter gourd variety, Pusa Rasdar developed by him is exclusively suitable for protected cultivation. He guided 12 Ph. D and 2 M.Sc. students at P.G School, IARI, New Delhi. He served as chairman of the sub-committee to develop post graduate course curriculum on Horticulture for IM-ACRE programme of Myanmar and ANASTU, Afghanistan. He published 125 peer reviewed research papers, edited 3 Books and written 15 book chapters and 7 training manuals. 
He was deputed to USA, Australia, France, Russia, Thailand, Libya for academic assignments. He was the member of XI Five Year plan for Horticulture, Plantation Crops and Organic Farming, RAC (ICAR-DMR, Solan & BAU, and Bhagalpur) and Institute Management Committee of ICAR-IIHR, Bengaluru, ICAR - CCARI, Goa, ICAR-CIAH, Bikaner and ICAR-DOGR, Pune. He also served as FAO International Consultant in Vegetable Breeding at Libya 2010. Presently, he is the member of Board of Management of Dr Y.S. Parmar UH&F, Solan, H.P. and Academic Council of Dr. Y.S.R. Horticultural University, Andhra Pradesh.
He is fellow of Fulbright-Nehru Academic and Professional Excellence (USIEF), National Academy of Agricultural Sciences (NAAS), Indian Society of Plant Breeding and Genetics (ISGPB), Indian Academy of Horticultural Science (IAHS), Indian Society of Vegetable Science (ISVS)
He has been conferred with several Awards including XXth Hari Krishna Shastri Memorial Award (2019), Best Teacher Award for Higher Education (2018), Dr Biswajit Choudhury Memorial Award (2018), Dr Kirti Singh Gold medal (2016), Fulbright-Nehru Academic and Professional Excellence Fellowship (2015), Hooker Award (2010), DBT Associateship (2006), Dwarka Nath Memorial Medal (2000)
He is presently associated as the Secretary of Indian Society of Vegetable Science (ISVS), President of Association for Promotion of Innovations in Vegetables (APIV) and member of the EC of Indian Academy of Horticultural Science (IAHS). He also served as Editor of HSI (2011-19), Agricultural Research Journal (from 2016) and Indian Society of Agricultural Sciences (2012-16), Assistant Editor of CGCR, USA (from 2008) and Treasurer of HSI (2015-18). 

Dr. Yiqun Weng
Research Geneticist, USDA-ARS, Vegetable Crops Research Unit, Horticulture Department
University of Wisconsin, USA

Dr. Yiqun Weng is a Research Geneticist in the Vegetable Crops Research Unit of USDA-ARS, and Professor, Horticulture Department, University of Wisconsin Madison. He is the principal investigator leading the Cucumber Improvement Program aiming to understand the genetic basis of traits important for growers and customers and to develop enhanced germplasm using classical and biotechnological approaches. Current research interests in his program include: 1) Developing genetic and genomic resources and molecular tools to accelerate traditional cucumber breeding. 2) Exploring and transferring useful genes in cucumber relatives. 3) Understanding chromosome evolution, domestication, and selection during cucumber crop evolution.

Genetic Basis of Downy Mildew Resistance in Cucumber
Yiqun Weng, USDA-ARS Vegetable Crops research Unit, Horticulture Department, University of Wisconsin, Madison, WI 53706, USA

The downy mildew (DM) caused by the obligate biotrophic oomycete Pseudoperonospora cubensis is among the most devastating foliage diseases of cucumber and other cucurbits worldwide. At present, control of DM in cucumber production in the US relies heavily on spray of fungicides, which reduces profit margin and is of environmental concern. The DM pathogen populations are prone to develop resistance to fungicides. Deployment of host resistance is a critical component of integrated pest management of DM. Over the last decade, extensive studies on the genetic basis of DM resistance have revealed complex and diverse genetic and molecular mechanisms of DM resistances in cucumber. In this talk, I will give a brief historical review of genetic studies of DM resistance and summarize genes and quantitative trait loci (QTL) identified so far in cucumber. I will then present recent work in fine mapping and cloning of major-effect QTL in several well characterized resistance sources including WI2757, PI 197087, PI 197088, and PI 330628 (WI7120) with emphasis on dm1 (staygreen), the composite dm4.1 locus (four subQTL), dm5.2, and dm5.3. I will also discuss the use of crop wild relatives (CWR) in cucumber breeding for DM resistance.


Iowa, USA UTC -05:00 02:00 – 04:00
Israel, Jordan, Lebanon, Syria UTC +02:00 10:00 - 12:00
Kuwait, Turkey UTC +03:00 11:00 - 13:00
Iran UTC +03:30 11:30 – 13:30
Pakistan UTC +05:00 12:00 - 14:00
India, Sri Lanka UTC +05:30 12:30 – 14:30
Nepal UTC +05:45 12:45 – 14:45
Bangladesh, Krygyztan UTC +06:00 13:00 - 15:00
Myanmar UTC +06:30 13:30 - 15:30
Cambodia, Indonesia, Laos, Thailand, Vietnam UTC +07:00 14:00 - 16:00
China, Chinese Taipei, Hong Kong-China, Malaysia, Philippines, Singapore UTC +08:00 15:00 - 17:00
Japan, South Korea UTC +09:00 16:00 - 18:00
Australia (Canberra) UTC +11:00 17:00 - 19:00
New Zealand (Wellington) UTC +13:00 19:00 - 21:00