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Preferential influence of wheat genotypes on the distribution pattern and population dynamics of cereal aphids and their natural enemies in Peshawar Valley
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نویسنده
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ali s. ,khalid s. ,ali s. ,akhtar k. ,khan m.s. ,ali a. ,samad a. ,hussain s. ,fahad s. ,khan f.
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منبع
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pakistan journal of zoology - 2015 - دوره : 47 - شماره : 1 - صفحه:223 -233
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چکیده
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An experiment was conducted to study the population density of cereal aphids and their natural predators under the effect of different wheat varieties. ten local wheat varieties were laid in the rcbd design having four replications,each having 2 sub-plots at the new developmental farm,khyber pakhtunkhwa agricultural university,peshawar (ndf,kp-aup). data for the aphid population pattern,their predators,aphid parasitoids,and ultimate losses to grain yield and biomass were recorded. moreover,population distribution pattern on different plant parts was also studied. result indicated that saleem-2000 appeared to be the resistant cultivar having minimum aphid infestation (4.65) before booting stage,due to maximum beetle population (0.15). however,after the booting stage,pirsabak-2004 received the maximum aphid infestation (2.90) due to minimum beetle population plant-1 (0.08). moreover,r.padi and s.avenaee are the dominant species of aphids during vegetative and reproductive crop stages,respectively. higher grain yield losses (31.12%) under aphid infestation over the control were recorded in ghaznavi- 98 while fakhr-e-sarhad (0.74%) showed minimal yield losses. copyright © 2015 zoological society of pakistan.
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کلیدواژه
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Aphid infestation; Booting stage; Parasitoids; Predators; Wheat (Triticum aestivum L.); Yield losses
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آدرس
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insect chemical ecology lab,college of plant science and technology,huazhong agricultural university, China, department of plant protection,university of agriculture, Pakistan, insect chemical ecology lab,college of plant science and technology,huazhong agricultural university, China, department of plant protection,amir muhammad khan campus mardan,university of agriculture, Pakistan, department of plant protection,amir muhammad khan campus mardan,university of agriculture, Pakistan, college of horticulture and forestry sciences,huazhong agricultural university, China, national key laboratory of crop genetic improvement,college of plant science and technology,huazhong agricultural university, China, national key laboratory of crop genetic improvement,college of plant science and technology,huazhong agricultural university, China, national key laboratory of crop genetic improvement,college of plant science and technology,huazhong agricultural university, China, national key laboratory of crop genetic improvement,college of plant science and technology,huazhong agricultural university, China
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Authors
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