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Cannabis is an herbaceous species of the Cannabaceae family and is native to the Himalayas. It contains hundreds of metabolites with potential bioactivity, including cannabinoids, terpenes, and flavonoids. The objective of this experiment was to evaluate the yield and the cannabidiol (CBD) and tetrahydrocannabinol (THC) content of medicinal cannabis (variety Cherry Oregon) in two localities of the Ecuadorian highlands. A Randomized Complete Block Design with four treatments and four replications was carried out. Treatment 1 was maintained with natural light, treatment 2 received 16/8 photoperiod (16 hours light, 8 hours dark) for one week, treatment 3 received 16/8 photoperiod for two weeks, and treatment 4 received 16/8 photoperiod for 3 weeks. In the locality 1, treatment 4 showed better values of plant height, dry biomass, biomass yield per plant and greater biomass yield per m2, in both cycles. In the locality 2, the treatments were statistically similar in all variables in both cycles, but a trend where treatment 4 presented higher values compared to the rest of the treatments was observed. The THC and CBD contents for the treatments and cycles ranged between 0.06% and 0.51%, and between 13.76% and 15.29% respectively in both localities. Finally, the results obtained agree with what is reported in the variety's technical sheet, and the THC content does not exceed the maximum value allowed by Ecuadorian regulations.

Maize (Zea maysL.) germplasm from the Ecuadorian Higlands has low tolerance to inbreeding especially in starchy cultivars. To create competitive varieties at the commercial level it is necessary to identify outstanding progenitor lines by early testing. The purpose of this research was to evaluate the yield potential of S1linesof black corn by early testing. The experiment was conducted at the “Tunshi” Experiment Station, Licto parish, Chimborazo province, Ecuador using a complete random block design with four replications. Twenty-four treatments were evaluated, each consisting of an S1line of black corn. Agronomic traits were registered and the percentage of inbreeding depression was calculated. The lines presented statistical differences (P ≤ 0.05) in the variables days to male and female flowering, plant height, ear height, leaf disease, ear length, weight of 100 kernels and grain yield. All the variables showed inbreeding depression, except days to male flowering, which presented a low increase. Lines 16, 15 and 22 were the most productive with yields of 2.00; 2.08 and 1.95 t ha-1respectively. These resultsallow to select lines with less depressive effects on yield produced by inbreeding, and to continue with the improvement processes of black maize.

The province of Tungurahua is well known for the production of deciduous fruit trees in Ecuador, however, its production is impacted by some issues that affect productivity. The purpose of this investigation was to conduct a diagnosis of the production system of deciduous fruit trees in 6 locations in Tungurahua province. Surveys were carried out to obtain information on 117 production units (farms). A regression model was used to determine the relationship between the variables and their incidence in the production system. The results showed that peach (Prunus persica) is the fruit crop with highest yield (16.19 t ha-1), followed by apple (Malus domestica) (13.36 t ha-1) and pear (Pyrus communis) (13.15 t ha-1). Apple cultivars Emilia and Golden Delicious, cv. Uvilla of pear and Conservero Amarillo of peach were the most cultivated in Tungurahua. The main factors that influenced the farmer income were: Land area used for cultivation, reason for growing fruit trees, age of the producer, fruit selection and type of production. It is necessary to advocate to expand the cultivated land area of these fruit crops in order to satisfy local demand and compete with imports of these fruits.