
Some new sources of race-specific resistance to Xanthomonas campestris pv. campestris were identifed during screening of cabbage inbred lines and commercial F 1 hybrids against different levels of pathogen inoculum. Inbred line CR2-1 possessed a recessive gene-controlled resistance that depended on the bacterial inoculum concentration. Resistance of B. carinata accession PI 199947 to races 1, 3 and 4 controlled by Rb gene was effective against all inoculum levels. It was advised to use 10 4-10 CFU/ml concentration for initial screening of brassicas breeding material to get more reliable results. It is necessary to use susceptible standards. The plant disease reaction should start to be recorded on the 7th day after inoculation.
В результате скрининга коллекции инбредных линий и коммерческих гибридов F 1 капусты белокочанной выявлены источники расоспецифической устойчивости к Xanthomonas campestris pv. campestris. Установлено, что у линии Цр2-1 устойчивость рецессивный признак, ее проявление зависит от концентрации инокулюма. Устойчивость линии B. carinata PI 199947 к расам 1, 3 и 4, контролируемая геном Rb, проявляется независимо от инфекционной нагрузки. Для более надежного скрининга исходного селекционного материала предложено проводить инокуляцию при концентрации патогена 10 4-10 5КОЕ/мл с обязательным использованием восприимчивого стандарта и учет зараженности начинать с 7-го дня после искусственного заражения.
СОСУДИСТЫЙ БАКТЕРИОЗ КАПУСТЫ,XANTHOMONAS CAMPESTRIS PV. CAMPESTRIS,УСТОЙЧИВОСТЬ,BLACK ROT OF CABBAGE,RESISTANCE
СОСУДИСТЫЙ БАКТЕРИОЗ КАПУСТЫ,XANTHOMONAS CAMPESTRIS PV. CAMPESTRIS,УСТОЙЧИВОСТЬ,BLACK ROT OF CABBAGE,RESISTANCE
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
