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Agrotechnology
Migration study of legume-symbiosis bacteria (Rhizobia) away from host plant zone
3rd International Conference on Agriculture & Horticulture
October 27-29, 2014 Hyderabad International Convention Centre, India

Alka Panwar, Y K Sharma, Manoj Sharma, R S Meena, O P Aishwath, Sharda Choudhary and Geetika Jethra

Scientific Tracks Abstracts: Agrotechnol

Abstract:

Many leguminous plants are able to utilize atmospheric nitrogen through an association with Rhizobia bacteria that are hosted by the root system of certain nitrogen plants. An experiment was conducted to study the migration of root nodulating bacteria from their host by different ways such as air, water, etc. The samples were collected from different ways and distances from legume growing site viz; 100, 150 and 200 meters. Five root nodulating bacteria from samples were isolated by using yeast extract mannitol agar media with congo red dye. These isolates were further characterized on the basis of morphological, biochemical characters and tested for symbiosis and nodulation on legume plants in laboratory. The results revealed that three isolates were authenticated for symbiosis with legumes and nodulation. M-2 from stagnant water, 150 m away from host plant site isolate developed nodulation on Trigonella foenum-graecum and M-3 from air, 100m away from host plant site developed nodules on Trifolium alexandrinum while one isolate M-5 from running water, 200 m away from host plant site developed nodules on Vigna radiate. Hence, running water and air are important sources for migration of root nodulating bacteria from one place to another. Keywords: Legume, migration, Rhizobium, Trifolium alexandrinum, Trigonella foenum-graecum, Vigna radiate.

Biography :

Alka Panwar has completed her PhD at the age of 27 years from Bhagwant University and MSc studies from M.D.S University, Ajmer. She is the Senior Research Fellow of National Research Centre on Seed Spices, under DUS Project. She has published more than 10 papers in reputed journals and has been serving as a life member of Society of Applied Biotechnology. More than 10 national and international conferences and seminars attended and more than 5 trainings attended.