| Titles |
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English :
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susceptibility of three maize cultivars to leafhopper infestatiun and effect of potassiun levels on leaf hoppers
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Arabic :
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حساسية ثلاثة أصناف من نباتات الذرة للإصابة بنطاطات الأوراق وتأثير مستويات التسميد البوتاسي على تعداد نطاطات الأوراق
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| Abstract |
Suseptibility of the three maize cultivars (Cross 10, Bashayer 13 and Watania 4) to leafhopper infestations was valuated at El-Mansoura district, Dakahlia Governorate thoughout 2002 and 2003 seasons. The obtained results cleared that the population density of Empoasca decedens (Paoli), Balclutha hortensis (Lindb), Cycadulina chinai (Ghauri) and Empoasca decedens (Paoli) recorded two peaks on each cultivar during each season of study. The Cross 10 cultivar was comparatively susceptible to leafhopper infestations and harboured high numbers of E. decipiens followed by Bashayer 13 and Watania 4 cultivars during the two studied seasons. In case of B. hortensis, C. chinai and E. decedens the same trend was found during the two studied seasons. the potassium ferilization significanty influenced between population density of E. decipiens, B. hortensis, C. chinai and E. decedens under the four tested potassium fertilization levels of 0, 50, 100 and 150 kg/Fed. during the two studied seasons. However, the levels of 50, 100 and 150 kg/Fed. had a range from 4.36 to 49.34% of leafhopper populations reduction in comparison with the control treatment during 2002 and 2003 seasons. This reduction may be due to the variance in epidermal thickness which varied from 5.29 to 6.14 micron as response to the variance on potassium levels from zero to 150 kg/Fed.
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| Publication year |
2002
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| Author(s) from ARC |
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| Agris Categories |
Pests of plants
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AGROVOC
TERMS |
Censuses.
Cicadellidae.
Infestation.
Maize.
Potassium.
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| Publication Type |
Journal
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