Screening techniques and sources of resistance to nematodes in cool season food legumes uri icon

abstract

  • Identification of sources of resistance in cool season legumes to cyst (Heterodera spp.), root-knot (Meloidogynespp.), and stem nematode (Ditylenchus dipsaci) is generally based on number of cysts on roots, root-knot nematodeinduced gall index, and stem nematode reproduction in shoot tissue, respectively . Various levels of resistance to cystnematodes have been detected in chickpea and pea. Resistance has also been identified in chickpea, faba bean, andpea to the root-knot nematodes . Broad based durable sources of resistance to plant parasitic nematodes are required .Basic research is needed to develop transgenic plants with resistance based on hatch stimulants, inhibitors, toxins,or repellents found in antagonistic rhizosphere microorganisms . Selection of genotypes that favor development ofbeneficial rhizosphere microorganisms or root endophytes that increase the plant resistance to nematode infectiondeserves attention

publication date

  • 1993
  • 1993