Effect of different initial population densities of Meloidogyne incognita on the growth of Cicer arietinum.
Studies were undertaken to determine the effect of different initial population densities (Pi = 50, 100, 250, 500, 1000, 2500, 5000, 10,000 and 15,000 J2/Pot) of Meloidogyn incognita on chikpea cv. Bandal local in a pot experiment. Plant growth, flowering and pod bearing were influenced by all the initial population densities. Increase in Pi not only resulted in proportional decrease in plant lenght, fresh weight, dry weight and pod bearing but also delayed the flowering. The highest reduction was observed at the initial population of 15000 as compared to uninoculated control. It was noticed that reduction in root fresh weight was less than shoot especially at higher initial population. Reproduction of nematode was observed inversely proportional to intial population (on 50 J2/Pot, Rf = 196.64 and 15000 J2/Pot, Rf = 3.60).
Hesamedin
R
R
Department of Plant Protection, Faculty of Agriculture, Yasuj University 75914-353, Iran. hesam18@yahoo.com
D000818:Animals; D029863:Cicer / Q000254:growth & development* / Q000469:parasitology* / Q000502:physiology; D035264:Flowers / Q000254:growth & development*; D006790:Host-Parasite Interactions; D018517:Plant Roots / Q000254:growth & development / Q000469:parasitology; D011156:Population Density; D014431:Tylenchoidea / Q000254:growth & development*