title: Antixenosis and Antibiosis Resistance in Rice Cultivars against Chilo suppressalis (Walker) (Lepidoptera: Crambidae).
abstract: The striped stem borer, Chilo suppressalis (Walker) (Lepidoptera: Crambidae), is an important pest afflicting rice in most rice-growing countries in the world. Deliniating the categories of resistance in rice genotypes under field conditions could be helpful in managment of this pest. Two categories of resistance, antixenosis and antibiosis, were examined in ten popular and diverse rice genotypes of different origin that had been selected for their resistance to the striped stem borer in a previous study. Significant differences were found between genotypes for the number of egg masses, number of eggs, preference index, larval and pupal weight, larval development time, larval survival rate, larval mine length, and leaf trichome density. It was found that the rice genotypes Novator, A7801, and Nemat had the more pronounced antixenosis-type resistance, whereas AB1 and Shirodi had better antiobiosis-type resistance. Interestingly, the rice genotype AN-74 for which Nemat is the parental line showed both types of resistance and could be effectively used in an integrated pest management of the rice striped stem borer.
authors.affiliation: Dept of Plant Protection, Faculty of Agricultural Science, Univ of Mohaghegh Ardabili, Ardabil, Iran.|Rice Research Institute of Iran, Mazandaran Branch, Agricultural Research, Education and Extension Organization (AREEO), Amol, Iran.
authors.forename: M A
authors.initials: MA
authors.lastname: Tabari
authors.affiliation: Dept of Plant Protection, Faculty of Agricultural Science, Univ of Mohaghegh Ardabili, Ardabil, Iran.
authors.forename: S A A
authors.initials: SAA
authors.lastname: Fathi
authors.affiliation: Dept of Plant Protection, Faculty of Agricultural Science, Univ of Mohaghegh Ardabili, Ardabil, Iran.
authors.forename: G
authors.initials: G
authors.lastname: Nouri-Ganbalani
authors.affiliation: Rice Research Institute of Iran, Mazandaran Branch, Agricultural Research, Education and Extension Organization (AREEO), Amol, Iran. amoumeni@areeo.ac.ir.
authors.forename: A
authors.initials: A
authors.lastname: Moumeni
authors.affiliation: Dept of Plant Protection, Faculty of Agricultural Science, Univ of Mohaghegh Ardabili, Ardabil, Iran.
authors.forename: J
authors.initials: J
authors.lastname: Razmjou
mesh_terms: D000818:Animals; D000898:Antibiosis; D005838:Genotype; D007814:Larva; D007915:Lepidoptera; D009036:Moths; D012275:Oryza / Q000235:genetics*; D010572:Pest Control, Biological
keywords: Oryza sativa; morphological characteristics; pest management; plant resistance; striped stem borer