Submitted to: Grain Legumes
Publication Type: Popular Publication
Publication Acceptance Date: 5/1/1997
Publication Date: N/A
Citation: N/A Interpretive Summary: Winter grain legumes have potential for increased yields and earlier and more efficient harvest. However, the germplasm for these projected improvements is not currently available. In this paper we describe the important factors for winter survival by grain legumes planted in the fall and the means for efficient screening tests for identification of tolerant or resistant germplasm. Other aspects of winter survival by grain legumes is discussed.
Technical Abstract: Frost is a major factor in the use of winter grain legumes. In this review of the problem we discuss the importance of the means that grain legumes have for overcoming the problems induced by cold temperatures. The means to overcome frost include escape and tolerance or resistance. Screening methods for developing germplasm with resistance to frost include controlled environment evaluations at critical temperatures and durations. Molecular markers for the resistance genes would be of benefit to geneticists and breeders attempting to develop hardy germplasm. It was concluded that overcoming climatic stresses from cold temperatures during winter seasons is necessary for expanded production and for realizing expected yield benefits.