African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Analysis of the degree of cross-fertilization and auto-fertility and their impact on breeding faba bean (Vicia faba L.) cultivars grown in Sudan

Seif Gasim1*, Awadalla Abdelmula1 and Jamal Khalifa2
  1Deparment of Agronomy7, Faculty of Agriculture, University of Khartoum, 13314, Shambat, Sudan. 2Hudeiba Research station, Agricultural Research Corporation, Wad Medani, Sudan.  
Email: [email protected]

  •  Accepted: 22 July 2011
  •  Published: 12 December 2011

Abstract

 

In faba bean, the degree of cross-fertilization and auto-fertility is a crucial character in any breeding program. The degree of cross- and auto-fertility of four faba cultivars were assessed at three locations in Sudan, using hilum colour as a morphological marker. The variation between the cultivars and between locations for the degree of cross-fertilization was extremely small, which ranged from 10.6 to 12.7%. The degree of auto-fertility was high in the four cultivars, reaching up to 88%, therefore, line cultivar could be produced. As line cultivar has a risk of low yield stability, the search for plant traits that attract pollinating insects could contribute to increase cross-fertilization and as a result heterosis could be used for the improvement of cultivars. Otherwise, the floral biology of the bean plant should be manipulated towards full autogamy.

 

Key wordsVicia faba L., breeding, cross-fertilization, auto-fertility, line cultivar, bee pollinator.