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POPULATION DENSITY OF ROOT-KNOT NEMATODE Meloidogyne javanica ON CUCUMBER PLANT AND SOME METHODS OF CONTROL | ||
| Mesopotamia Journal of Agriculture | ||
| Article 8, Volume 38, Issue 0, 2010, Pages 34-39 PDF (0 K) | ||
| DOI: 10.33899/magrj.2010.36258 | ||
| Author | ||
| Sulaiman N.Ami | ||
| Abstract | ||
| The results revealed that the interaction between region of survey and period of taking samples was significant on the population density of root-knot nematode M.javanica,which reached it's maximum level (1264 nematode stage / 200gm soil) in soil of khabat field in september,then declined to it's minimum level (121 nematode stage / 200gm soil) in soil of koshtapa field in may.Three treatments were applied for controlling root –knot nematode M. javanica on cucumber plant cv. Babylon included vydate (24%) in its liguid formula and two biocotrol agents included Trichoderma harziaum and Bacillus thuringinesis as a single,two fold and triple treatments after joining with each other.The results indicated that all treatments improved some growth criteria of cucumber plants ( length and weight of shoots and roots ) and reduced some infection criteria (number of root –knots,root-knot index,nematode population density and its rate of reproduction ).It was also noted that treatment effects increased after joining them with each other,i.e the triple treatment which represented of applying two biocontrol agents after 15 days of vydate application was the best one. | ||
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