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( Helianthus annuus L.) seedlings in response to infection by Plasmopara halstedii . Eur. J. Plant Pathol. , 102 , 401–405. Tena M. Induction of different chitinase and β-l,3-glucanase

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Laboratory studies were conducted on the acceptability of pollen grains of Ricinus communis (L.) and Helianthus annuus L. to Amblyseius zaheri Yousef and El-Borolossy, Euseius yousefi Zaher and El-Borolossy, Amblyseius lindquisti Schuster and Pritchard, Typhlodromus balanites El-Badry, Typhlodromus sennarensis El-Badry and Amblyseius cabonus (Schicha) as indicated by effect on development, survival, oviposition and life table parameters. A. zaheri and E. yousefi had a shorter developmental period on both pollen grains than A. lindquisti. Development was not completed in case of T. balanites, T. sennarensis and A. cabonus. A. zaheri and E. yousefi showed the highest oviposition rate when fed R. communis compared to H. annuus. A. lindquisti failed to lay any eggs when fed on both pollen grains. On both predator species, a diet of R. communis provided the shortest generation time (T) relatively, greatest female longevity and mean total fecundity (f) which resulted in the highest net reproductive rate (Ro) value (41.46 and 43.28 expected females per female), intrinsic rate of increase (rm = 0.279 and 0.258) and finite rate of increase (er m = 1.322 and 1.294 per day) for A. zaheri and E. yousefi respectively.

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) Regeneration of fertile plants from protoplasts of sunflower ( Helianthus annuus L.). Plant Cell Rep. 10 , 161–166. Bidney D. Regeneration of fertile plants from protoplasts of

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518 Doddamani, I. K., Patil, S. A., Ravikumar, R. L. (1997): Relationship of autogramy and self fertility with seed yield and yield components in sunflower ( Helianthus annuus L

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–196. Kádár I., 1992. A növénytáplálás alapelvei és módszerei. MTA TAKI. Budapest. Kádár I., 2001. A napraforgó ( Helianthus annuus L.) tápelemfelvétele mészlepedékes vályog csernozjom talajon. Növénytermelés. 50. 285

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synthetics from a diallel cross in sunflower ( Helianthus annuus L.). Can. J. Plant Sci. , 46 , 59--67. Heterosis, combining ability and predicted synthetics from a diallel cross in sunflower (Helianthus annuus L

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) Aminolevulinic acid-induced changes in some key physiological attributes and activities of antioxidant enzymes in sunflower ( Helianthus annuus L.) plants under saline regimes . Sci. Hortic. 142 , 143 – 148 . 4

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. Noreen , S. , Ashraf , M. ( 2010 ) Modulation of salt (NaCl)-induced effects on oil composition and fatty acid profile of sunflower (Helianthus annuus L.) by exogenous application of salicylic acid . J. Sci. Food Agric. 90 , 2608 – 2616

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Introduction Sunflower ( Helianthus annuus L.) is the third most productive oleaginous plants in the world and has an increasing economic and agronomic importance. It is an important crop in Iran, which is grown 40,000 ha

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Krishna Reddy, S. V., Husain, M. M., Kasturi, K., Reddy, B. B., Reddy, G. V. 1992: Effect of soil and foliar application of nitrogen in sunflower (Helianthus annuus) under rainfed condition. Indian J. Agron. , 37 , 863

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