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Combining ability and heterosis in sunflower ( helanthus annuus L.) [electronic resource].

By:

Mahmoud, A. M

Language: English Summary language: Arabic Description: p.551-566Other title:

القدرة على الائتلاف وقوة الهجين فى دوار الشمس [Added title page title]

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Minia journal of agricultural research and development, 2007 v. 27 (3) [electronic resource].

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In: Minia Journal of Agricultural Research and Development 2007.v.27(3)Summary: Twelve hybrids developed from crossing between three CMS lines (AI, A2 and A3) with four restorer lines (Rf-4, Rf-5, Rf-6 and Rf-7) as well as their parents and one check variety were grown in clay and sandy soil under Middle Egypt condition. The results revealed that, the yielding potentiality for all genotypes under clay soil was higher than under sandy soil The hybrid Al x Rf-4 recorded the highest achene yield I plant under both of clay and sandy soil (86.03 add 27.27 g I plant, respectively). The mean of oil percentage for all genotypes was higher under sandy soil than clay soil.

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Twelve hybrids developed from crossing between three CMS lines (AI, A2 and A3) with four restorer lines (Rf-4, Rf-5, Rf-6 and Rf-7) as well as their parents and one check variety were grown in clay and sandy soil under Middle Egypt condition. The results revealed that, the yielding potentiality for all genotypes under clay soil was higher than under sandy soil The hybrid Al x Rf-4 recorded the highest achene yield I plant under both of clay and sandy soil (86.03 add 27.27 g I plant, respectively). The mean of oil percentage for all genotypes was higher under sandy soil than clay soil.

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