BEHAVIOR OF SOME FABA BEAN GENOTYPES UNDER NATURALLY OROBANCHE INFESTED SOILS

doi:10.12816/ejpb.2025.463714

BEHAVIOR OF SOME FABA BEAN GENOTYPES UNDER NATURALLY OROBANCHE INFESTED SOILS

Document Type : Original research

10.12816/ejpb.2025.463714

Abstract

Two experiments were carried out to evaluate ten faba bean genotypes under naturally infested soils with broomrape (Orobanche crenata Forsk.), at Giza Agricultural Research Station, Agricultural Research Center, Egypt during 2023/24 and 2024/25 seasons. A Randomized Complete Block Design (RCBD) with three replications was used in this study and morphological identification was measured using the recommended scales reported by the international union for protection of new varieties, descriptors. Three new genotypes (L47, L41 and L86) produced highest seed yield plant^-1 and seed yield ardab fed^-1in both seasons. These genotypes exceeded the tolerant cultivar (Misr 1) by 47.62%, 43.58% and 25.19%, respectively as mean yield of the two seasons. Two genotypes (L47 and L41) combined the superiority in seed yield and tolerance of Orobanche with a significant reduction in number and dry weight of Orobanche. The results of the heat map analysis also showed that genotype L47 had the best performance for most studied traits, suggesting that this genotype could be used as a new source in breeding programs for Orobanche tolerance. The most related traits to Orobanche tolerance were stem anthocyanin coloration, leaflet folding, flower length characters and seed yield in ardab fed^-1, so these morphological characters could be used in the faba bean breeding programs as selection markers for Orobanche tolerance.

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