Journal of Crop Protection
Journal of Crop Protection
JCP
Agriculture
http://jcp.modares.ac.ir
1
admin
2251-9041
2251-905X
en
jalali
1391
12
1
gregorian
2013
3
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2
1
online
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Does leaf pubescence of wheat affect host selection and life table parameters of Sipha maydis (Hemiptera: Aphididae)?
The influence of leaf pubescence of three wheat cultivars (Pishtaz, Ghuds and Falat) on preference and biological parameters of <em>Sipha maydis</em> (Passerini) was investigated under greenhouse conditions (25 ± 2 °C, 70 ± 10% RH and 14: 10 h (L: D) photoperiod). The results showed that Pishtaz had a greater density of trichomes compared to the other cultivars. In the preference test with whole plant, the number of aphids on Pishtaz was significantly greater than that on other cultivars at 48 hrs after infestation. Similarly, in the preference test on leaves, the numbers of attracted aphids per leaf was highest on Pishtaz. In the life table study, there was no significant difference of intrinsic rate of natural increase (<em>r<sub>m</sub></em>) among the three studied cultivars but it was highest on Pishtaz (0.187 /day). Aphids’ net reproductive rate, doubling time, mean generation time and finite rate of increases did not show significant differences between the tested cultivars. According to our results, leaf surface pubescence of wheat is not an effective resistance mechanism against <em>S.</em> <em>maydis</em>.
Wheat cultivars,Sipha maydis,Plant resistance,: trichomes
81
92
http://jcp.modares.ac.ir/browse.php?a_code=A-3-1000-4484&slc_lang=en&sid=3
Samaneh
Gholami moghadam
Samaneh
Gholami moghadam
100319475328460040211
100319475328460040211
No
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
Mojtaba
Hosseini
Mojtaba
Hosseini
100319475328460040210
100319475328460040210
Yes
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
Mehdi
Modares Awal
Mehdi
Modares Awal
100319475328460040212
100319475328460040212
No
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.