Symbiosis of mycorrhizal fungi with Rubus spp., in four farms of the municipality of Pamplona, Norte de Santander

Abstract

Introduction− The blackberry crop is part of the prioritized productive chains in Norte of Santander, however, there are no research results on the benefits of Arbuscular Mycorrhizal Fungi (AMF) and the level of natural colonization of these with Rubus sp. Objective− To determine the levels of colonization and mycorrhization of AMF in commercial varieties of blackberry and wild species of Rubus sp. in areas of the municipality of Pamplona Norte de Santander Methodology− This work was carried out in the Sabaneta Baja, Sabaneta Alta and San Francisco veredas of the municipality of Pamplona, sampling four farms. Root samples were collected from commercial blackberry crops and neighboring wild species to evaluate the percentage of colonization and mycorrhization by AMF. ANOVAS were carried out using the SPSS statistical package. Results− High levels of AMF symbiosis were found in the three commercial varieties of blackberry (colonization between 92 to 98%) and in the three species of Rubus sp. (colonization between 71 to 84%), as well as the presence of mycorrhizal structures of AMF in blackberry varieties and native species. Conclusions− The biological variables of the AMF did not vary statistically between the commercial varieties, or wild species, but did between the different farms and in the variety x farm interaction for the commercial varieties. The biological variables of the AMF in the commercial varieties differed from the wild species located on the same farm.