EFFECT OF DIFFERENT  POPULATION  DENSITY  OF  ROOT  KNOT NEMATODE ON COMMON BEAN AND COWPEA PLANTS IN THE GREEN  HOUSE

T. Al-Khafaji, Riyadh

	EFFECT OF DIFFERENT POPULATION DENSITY OF ROOT KNOT NEMATODE ON COMMON BEAN AND COWPEA PLANTS IN THE GREEN HOUSE
The Iraqi Journal of Agricultural Science
Article 1, Volume 42, Issue 2, 2011, Pages 80-87
Author
Riyadh T. Al-Khafaji
Abstract
This study was conducted in the / Spring season / 2010 at green house of Plant Protection Department, Agriculture College, University of Baghadad under temperature (25 + 2 Cْ ), to evaluate the effect of different levels of root - knot nematodes inoculum (500, 1000, 5000, 10000 nematode juvenile / pot + the control treatment ). Growth shoot parameters (the plant height, Foliar weight (fresh weight ), root weight ( fresh weight ) and pod weight of common bean ( Local variety ) and cowpea (Local variety). Results was recordes After 128 days from planting the addition of 500 nematode juvenile / pot caused an increase in plant height, foliar , root system (fresh weight) and pods fresh weight for common bean , while it caused decrease in plant height, foliar, root system weight , and pods weight compared to control treatment. An increase in inoculums levels of 1000 nematode juvenile / pot oncommon bean caused increase in shoot system, and root system weight, decrease in plant height and pod weight and on cowpea caused decrease in plant height, green system, root system and pod weight. An Increase 5000 and 10000 nematode juvenile / pot caused on common bean an decrease in plant height, green system, and pod weight, increase in root system and on cowpea caused decrease in plant height, foliar( fresh weight), root system and pod weight. Results of the nematode inoculums level of 500, 1000, 5000 and 10000 nematode juvenile / pot on cowpea caused an increase in shoot (fresh weight), root system, and pods weight .

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