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Crotalaria pumila Ort. is a legume native to Mexico with little information about its forage potential based on its profile of accumulation during the summer, so a study was carried out with the aim of determining the total yield and the yield by component during 2021 to generate base information to decide regarding the possibility of the species as a forage species. In an area with spontaneous C. pumila, nine weekly samplings were carried out, in which we determined the total yield and yield by components: leaf, stem, flower, and pods, their proportional contribution to the total and number per plant and plant height. The statistical analysis was for a completely randomized design with three repetitions, the independent variable was the number of days elapsed in the summer. As the summer progressed, total and pod yields increased (p< 0.05), stem yield remained constant (p> 0.05), and leaf yield (p< 0.05) and the number of leaves per plant decreased, the increase in pod yield occurred with an increase (p< 0.05) in the number of pods per plant. The high pod yield made it possible to ensure a natural reseeding of C. pumila. The total yield ranged from 9 to just over 20 t ha-1. The conclusion is that based on the total yield, Crotalaria pumila can be a forage species option. [ABSTRACT FROM AUTHOR]

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Extracts made by alcoholic maceration, showed the greatest inhibition of the growth of the P. clavispora fungus with respect to water maceration or infusion. In bioassays with alcoholic extracts concentrated with rotary evaporator and filtered, extracts of jaral (Cistus sp.), olives (Bidens odorata Cav.), Mesquite (Prosopis laevigata Humb. & Bonpl. Ex Willd.), paradise (Melia azedarach L.), olive tree (Olea europaea L.), trompillo (Solanum eleagnifolium Cav.), lantana (Lantana sp.), rosemary (Rosmarinus sp.), rue (Ruta graveolens L.), venadilla (Bursera simaruba (L.) SARG.), cow tongue (Rumex crispus L.) and Australian eucalyptus (Corymbia (=Eucalyptus) gummifera (Gaertn.) Hill & Johnson) showed fungal growth reductions, greater than 90%. In the field, extracts of red eucalyptus plants (Eucalyptus camaldulensis) and Australian eucalyptus (Corymbia gummifera) showed less damage than chemical synthesis fungicides evaluated. The foregoing indicates that the use of these extracts is feasible in the control of the P. clavispora fungus, reducing the environmental impact. [ABSTRACT FROM AUTHOR]

Copyright of Revista Mexicana de Ciencias Agrícolas is the property of Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to determine the possible use of guayabilla (Psidium guineense) and myrtle (P. sartorianum) in innovation for the generation of food products, the physicochemical properties of fruits of these species were compared with those of guava (Psidium guajava). For this, five wild fruit collection sites were selected in the municipality of Talpa, Jalisco. The hypothesis was that the levels of citric acid and ripening index could be higher in guayabilla and myrtle, while the sugar content could be higher in guava. The experimental design used was a completely randomized one with a number of fruits that varied depending on the trees of the species present in each site. The obtained means were compared by the Tukey test p= 0.05. The acidity observed in mature fruits of Psidium sartorianum and Psidium guineense ranged between pH 2.84 to 3.21, while in guava a pH of 4.13 (less acidic) was observed. The titratable acidity obtained was congruent with the pH, since at lower values of titratable acidity correspond the lower pH values. Despite the acidity of the fruits of Psidium sartorianum, one of the collection sites showed a total soluble solids index (7.4 °Brix) higher than that of guava (5.32 °Brix). The ripening index was higher for guava, in contrast to the low values found in Psidium guineense and Psidium sartorianum. Finally, Psidium guajava presented larger fruits than the two-wild species. [ABSTRACT FROM AUTHOR]

Copyright of Revista Mexicana de Ciencias Agrícolas is the property of Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)