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Photoperiod Sometimes Influences Common Bacterial Blight Disease Of Common Beans, Mohamed F. Mohamed, Dermot P. Coyne
Photoperiod Sometimes Influences Common Bacterial Blight Disease Of Common Beans, Mohamed F. Mohamed, Dermot P. Coyne
Department of Agronomy and Horticulture: Faculty Publications
Common bacterial blight, incited by Xanthomonas campestris pv. phaseoli (Smith) Dye (Xcp), is a serious disease of common beans (Phaseolus vulgaris L.). Three experiments were conducted twice in growth chambers at 26 ± 1C under short (10 hours light/14 hours dark) and long (16 hours light/8 hours dark) photoperiods to determine the influence of these photoperiods, flower bud removal, pod development, and pre- and postinoculation photoperiods on the reaction of common beans to Xcp. In one test, ‘PC-50’ (susceptible; S) flowered earlier and was more susceptible to Xcp under the short photoperiod than under the long photoperiod. …