Agronomía Colombiana journal continues publish-ing research articles of the domestic and international agriculture from a variety of different fields, beginning with plant breeding to food sciences, including interesting topics not only about the climate change and agroecology, but also about crop physiology and crop pro-tection. All these are essential topics for the development of agriculture and the production of food in a changing and growing world, underlining the importance of interchange scientific and technic information between many working groups and lectors in the American Continent and the world, in general. For that, the journal is integrated in different indices and databases such as Publindex (A2), SciELO, Redalyc and Scopus, among others, and all texts are free for downloading in the internet (e.g., ResearchGate and Sinab).

In this issue of Agronomía Colombiana we have 11 papers, two of them in the Plant breeding, genetic resources and molecular biology section, one about molecular characterization and Freedom to Operate analysis of maize hybrids from genetically modified and Colombian varieties, and the other about detection and genome characterization of Potato virus Y isolates infecting potato in La Unión municipality of Antioquia (Colombia).

In the Crop physiology section there are also two articles, the first study the impacts of the dry season on the gas ex-change of oil palm and interspecific hybrid (Elaeis oleifera x Elaeis guineensis) progenies under field conditions in eastern Colombia, while the second is in the area of fruits evaluating the physicochemical characteristics of black-berry fruits from four production zones of Cundinamarca, Colombia.

We have only one article in the section Crop protection, the assessment of pesticide application quality with a manual sprayer in spinach, while in the Soils, fertilization and management of water section the spatial variability of moisture and compaction in soils with different plant covers is studied. In the Agroclimatology and climate change section, the first paper evaluate the effects of land use on soil CO₂ flux in the Paramo de Guerrero, Colombia, and a second one is about the agroclimatic zoning methodology for agricultural production systems in dry Caribbean region of Colombia, while the article in the Agroecology section studied the presence of mycorrhizal fungi and a fluorescent Pseudomonas sp. in the rhizosphere of cacao in two agroecosystems and their effects on cacao seedling growth.

A network analysis of knowledge building on rural exten-sion in Colombia is the paper presented in the Economy and rural development section and this issue of Agronomia Colombina ends with a contribution to the Science and technology of food section dealing about microstruc-tural changes and the effect on myofibril proteins in yamu (Brycon amazonicus) fish meat during cold storage.