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Susceptibility of aromatic rice (Oryza sativa L.) varieties toSitophilus oryzae L. (Coleoptera: Curculionidae) |
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| รหัสดีโอไอ | |
| Creator | 1. Agbesi Kwadzo Keteku 2. Suchada Dana |
| Title | Susceptibility of aromatic rice (Oryza sativa L.) varieties toSitophilus oryzae L. (Coleoptera: Curculionidae) |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2022 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 44 |
| Journal No. | 2 |
| Page no. | 503-510 |
| Keyword | aromatic rice, insect pest infestation, Sitophilus oryzae, susceptibility, resistance |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | Aromatic rice varieties and grain types differ in their susceptibility to a Sitophilus oryzae attack during storage. Ninearomatic rice varieties (RD 6, RD 105, Chai Nat 2, RD 15, Dok Pa-yom, Nhang Mon S-4, Hom Ubon 80, RD 12, and R 258)were evaluated for their relative susceptibility to S. oryzae. ANOVA analysis of the results revealed that varieties R 258, NhangMon S-4, and RD 12 have a higher tolerance to S. oryzae infestation, while RD 6, RD 15, and Dok Pa-yom possess intermediatetolerance. Varieties RD 105, Hom Ubon 80, and Chai Nat 2 demonstrated less tolerance to S. oryzae. Egg oviposition, emergedadults, seed weight loss, damage incidence, and susceptibility index were significantly (pโค0.05) lower (9.71, 27.77, 4.23 g, 0.61,and 4.97, respectively) in R 258. The longest developmental period, 28.38 days was also found in R 258. Standardized multipleregression coefficients analysis showed that varietal susceptibility strongly dependent on the number of eggs laid and thedevelopmental period. Interspecific crossing of R 258 to RD 12 and Nhang Mon S-4 is recommended to improve their resistance.High storage protection will be required for RD 105, Hom Ubon 80, and Chai Nat 2 to preserve grain quality. |
