SUSCEPTIBILITY OF SOME WHEAT AND RICE VARIETIES TO Sitophilus oryzae (L.) AND Rhizopertha dominica (F.) INFESTATION | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 9, Volume 6, Issue 3, March 2015, Page 549-554 PDF (151.61 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2015.53342 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| H. B. H. Hussain; M. E. H. Nasr | ||||
| Plant Protection Research Institute, Agricultural Research Center, Dokki, Egypt. | ||||
| Abstract | ||||
| Susceptibility of four varieties of wheat ( Egypt 1, Egypt 2, Gemmiza 11and Sids 12), and five rice varieties ( Egypt 1, Egypt 2, Giza 179, Sakha 105 and Sakha 106) for infestation by Sitophilus oryzae (L.) and Rhizopertha dominica (F.) were evaluated in the laboratory at 28 ± 1ºc and 65 ± 5 % R.H. The results showed significant differences between various wheat varieties in the growth index of S .oryzae, it was comparatively higher in the varieties Gemmiza 11 and Egypt 1 than varieties Egypt 2 and Sids 12. Also, Egypt 1 was the least susceptible to R. dominica with lowest percent of weight loss (3.80%). In case of rice varieties data revealed that, Giza 179 and Egypt 2 varieties were the least susceptible to S. oryzae by lowest values of growth index (0.38 and 0.90, respectively ) and corresponding values of weight loss (0.16 and 0.38% ,resp.), with significant differences when compared with all varieties. While, Sakha 105 variety was most resistance to R. dominica by growth index (1.27) and least value of weight loss (0.29%).A significant effect of grain moisture contents on susceptibility/resistance against S. oryzae and R. dominica . | ||||
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