Published in Scientific Papers. Series B, Horticulture, Vol. LXVIV, Issue 2
Written by Valko NESHEV
Common bean is a traditional grain legume crop in Bulgaria. It is mostly grown and used worldwide for its edible seeds. The genebank at IPGR-Sadovo preserves a large number and diverse collection of Phaseolus vulgaris L. Biotic and abiotic stress factors are causing significant yield and quality losses in common beans. The study aims to investigate accessions by biological, morphological, and agronomic traits and to select genotypes with diseases and drought resistance. For the current study, 26 accessions of local and foreign origin were used. Most of them are traditional varieties. The biometry and phenology analyses follow the Descriptors for Phaseolus vulgaris of IBPGR (1982). Observations on resistance to bacterial disease symptoms, caused by the pathogen, Xanthomonas campestris pv. Phaseoli were made using the CIAT scale (1987). The accessions were grown under nonirrigated conditions and the drought tolerance was recorded. The study gives valuable preliminary information for the common bean collection's biological potential about climate change. The investigation will be continued as a complex evaluation in the next experimental years.
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