Comparative life tables of the potato tuberworm, Phthorimaea operculella, on leaves and tubers of different potato cultivars.
Bottom Line: All parameters showed significant differences among tested cultivars.The highest intrinsic rate of incrase values were observed on Arinda and Baneba in the tests on leaves and tubers, respectively.The intrinsic rates of increase were significantly higher on potato leaves than on potato tubers.
Affiliation: Department of Plant Protection, Faculty of Agriculture, University of Mohaghegh Ardabili, P.O.Box 179, Ardabil,Iran firstname.lastname@example.org.Show MeSH
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Mentions: Age-specific survival rates (lx) of P. operculella on leaves and tubers of different potato cultivars are shown in Figures 1 and 2. The highest survival rates of egg, larval, and pupal stages when feeding on host plant leaves were observed on Almera, Agata, and Volvox cultivars, respectively. In the experiment on potato tubers, the highest survival rates of egg, larval, and pupal stages were observed on Baneba, Volvox, and Agata cultivars, respectively. The highest and lowest entire survival rates of individuals that developed to adulthood from the initial cohort stage were 68.9% on Volvox and 44.1% on Agria, respectively, when larvae were feeding on leaves. In the experiment on tubers, the highest and lowest entire survival rates were observed on Baneba (84.2%) and Marfona (40.6%), respectively. Among the different potato cultivars, the highest and lowest survival rates of entire development time were observed on Volvox and Agria leaves, and on Baneba and Marfona tubers, respectively. The survivorship rates on leaves were lower than those of tubers of the corresponding potato cultivar.
Affiliation: Department of Plant Protection, Faculty of Agriculture, University of Mohaghegh Ardabili, P.O.Box 179, Ardabil,Iran email@example.com.