02034nas a2200169   4500008004100000020001400041245013000055210006900185260000800254300001200262490000700274520137600281653002201657100002401679700002601703856013501729       2012                        eng d  a1021-278700aSUSCEPTIBILITY OF SIX VARIETIES OF RICE TO THE INFESTATION OF RICE WEEVIL, SITOPHILUS ORYZAE (L.) (COLEOPTERA: CURCULIONIDAE)0 aSUSCEPTIBILITY OF SIX VARIETIES OF RICE TO THE INFESTATION OF RI  cJul  a163-1680 v213 aThe susceptibility of six varieties of rice, Oryza sativa, viz. Lata, Minicate, Nazersail, Parija, Kalijira and Kataribhog, to the infestation of the rice weevil, Sitophilus oryzae (L.), was studied on the basis of population build up under an ambient condition (28 [plus or minus] 4[degree]C and 70 [plus or minus] 4 % RH) of the laboratory. The mean weights of each grain of the above six rice varieties were 16.9, 16.1, 11.43, 13.87, 6.23 and 9.77 mg, respectively; mean lengths were 6.47, 6.56, 5.37, 5.38, 4.22 and 4.92 mm, respectively; mean widths were 2.45, 2.03, 2.05, 2.17, 1.6 and 1.9 mm, respectively; and moisture contents were 11.55, 10.75, 11.6, 12.71, 11.85, and 12.1 per cents, respectively. As far as the number of emerging adults is concerned, the weevil showed the highest number (695) in Nazersail on the 16th week, Lata (755) on the 18th week, Minicate (654) on the 16th week, Parija (482) on the 20th week, Kalijira (402) on the 20th week, and Kataribhog (456) on the 20th week. The mean numbers of the adult weevils in the above six varieties after 22 weeks of rearing were 425, 410, 351, 387, 357 and 400, respectively and was statistically significant at 5% level. The degree of susceptibility of the rice varieties to the rice weevils from the highest to lowest susceptibility was - Lata > Nazersail > Minicate > Pariza > Kataribhog > Kalijira.10aSitophilus oryzae1 aKhan, Humayun, Reza1 aHalder, Polash, Kanti  uhttps://weevil.myspecies.info/susceptibility-six-varieties-rice-infestation-rice-weevil-sitophilus-oryzae-l-coleoptera-curculionid