Citrus scion/rootstock combinations show tolerance to huanglongbing

Scientists studied tolerance to huanglongbing under field conditions in trees of commercial citrus scion/rootstock combinations. All trees showed symptoms of HLB and tested positive for the Candidatus Liberibacter asiaticus bacterium by 20 months after planting. However, all trees continued to grow and showed increasing fruit production. 'Sugar Belle/Sour Orange', 'Tango/Kuharske' and 'Temple/ Cleopatra' exhibited the greatest growth rates and canopy volumes.

Source: ScienceDaily Headlines - March 28, 2016 Category: Science Source Type: news