Cytological Observations on Nodules,Nodule-Like Structures and Crown Galls on the Roots of Phaseolus vulgaris Detection of Xanthomonas axonopodis pv. phaseoli and Xanthomonas fuscans subsp. fuscans on common bean seeds The overwintering ability of Xanthomonas axonopodis pv. phaseoli and Xanthomonas fuscans subsp. fuscans in soil and plant debris THE PATHOGEN AND CONTROL OF KIDNEY BEAN WILT DISEASE Etiology of Thick Liquid Disease Fruit of Ziziphus jujuba Mill. ‘Zhanhua Dongzao‘ and Its Control Etiology of Thick Liquid Disease Fruit of Ziziphus jujuba Mill. ‘Zhanhua Dongzao‘ and Its Control Mobilization of potassium from Soils by rhizobium phaseoli Selection of Reference Genes from Sesame Infected by Macrophomina phaseolina