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NEMA 508 NEMATODE ECOLOGY                                                                                  (2L +1P) II

Objective
  To understand the life of plant parasitic nematodes in their environment; their survival strategies, and how to exploit these for their control.

Theory

UNIT I
  Definition and scope; components of  environment; evolution of  nematodes; ecological classification, prevalence, distribution and dispersal of nematodes.

UNIT II
  Role of nematodes in the food web; habitat and niche characteristics; community analysis, ecological indices, population estimation models

UNIT III
  Effects of abiotic and biotic factors on nematodes; Environmental extremes and nematode behaviour, survival strategies in nematodes and nematodes as bioindicators.

UNIT IV
  Modeling population dynamics and relations with crop performance; ecological considerations in nematode management, data interpretation and systems simulation.

UNIT V
  Impact of climate change on nematode pest problem.

Practicals
  Study of nematode fauna in varied agro-ecological systems, community analysis of nematode populations, laboratory exercises on influence of abiotic factors on movement and hatching, green- house experiments on effect of abiotic factors on nematode populations and plant growth.

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