| Titles |
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English :
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Susceptibility of three maize cultivars to leafhopper infestations and effect of potassium fertilizer levels on leafhOppers
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Arabic :
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حساسية ثلاثة اصناف من نباتات الذرة للإصابة بنطاطات الأوراق وتأثير التسميد البوتاسي على التعداد
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| Abstract |
Susceptibility of the three maize cultivars (Cross 10, Bashayer 13 and Watania 4) to leafhopper infestations was evaluated at El-Mansoura district, Dakahlia Governorate throughout 2002 and 2003 seasons. The obtained results cleared that the population density of Empoasca decipiens (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 fertilization significantly influenced 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 |
2006
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| Pages |
302-314
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| Availability location |
(معهد بحوث وقاية النباتات)7ش نادى الصيد دقى- جيزة.
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
الزقازيق
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| serial title |
المجله المصرية للعلوم التطبيقية
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| ISSN |
1110-1571
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| Author(s) from ARC |
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| Agris Categories |
Protection of plants - General aspects
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AGROVOC
TERMS |
Censuses.
Cicadellidae.
Infestation.
Maize.
Pest resistance.
Potash fertilizers.
Varieties.
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| Publication Type |
Journal
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