Hussain, H., Nasr, M. (2015). SUSCEPTIBILITY OF SOME WHEAT AND RICE VARIETIES TO Sitophilus oryzae (L.) AND Rhizopertha dominica (F.) INFESTATION. Journal of Plant Protection and Pathology, 6(3), 549-554. doi: 10.21608/jppp.2015.53342
H. B. H. Hussain; M. E. H. Nasr. "SUSCEPTIBILITY OF SOME WHEAT AND RICE VARIETIES TO Sitophilus oryzae (L.) AND Rhizopertha dominica (F.) INFESTATION". Journal of Plant Protection and Pathology, 6, 3, 2015, 549-554. doi: 10.21608/jppp.2015.53342
Hussain, H., Nasr, M. (2015). 'SUSCEPTIBILITY OF SOME WHEAT AND RICE VARIETIES TO Sitophilus oryzae (L.) AND Rhizopertha dominica (F.) INFESTATION', Journal of Plant Protection and Pathology, 6(3), pp. 549-554. doi: 10.21608/jppp.2015.53342
Hussain, H., Nasr, M. SUSCEPTIBILITY OF SOME WHEAT AND RICE VARIETIES TO Sitophilus oryzae (L.) AND Rhizopertha dominica (F.) INFESTATION. Journal of Plant Protection and Pathology, 2015; 6(3): 549-554. doi: 10.21608/jppp.2015.53342
SUSCEPTIBILITY OF SOME WHEAT AND RICE VARIETIES TO Sitophilus oryzae (L.) AND Rhizopertha dominica (F.) INFESTATION
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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