Rain-induced cherry fruit cracking is one of the most important problems in the cherry industry, and its occurrence causes significant economic losses. Sweet cherry (Prunus avium [L.] L.) is a non-climacteric fruit affected by both abscisic acid (ABA) and methyl jasmonate (MeJA) during development. The objective of this study was to evaluate the effect of these phytohormones on cracking susceptibility and quality parameters of sweet cherry fruit ('Bing'), located in the central region of Chile. During two seasons, independent pre-harvest applications of ABA (0.1 mM) and MeJA (0.4 mM) or both combined, at fruit developmental stages of fruit set or fruit color change, significantly reduced the number of mature cracked fruit after 6 h of immersion in water (p < 0.05). In both seasons the combinations of ABA and MeJA applied at fruit set reducing cracking index in an 87% compared to the control without compromising the weight or the diameter of the fruits. Moreover, in the second season ABA and MeJA applications at fruit set increased fruit firmness (11% and 6% respectively) and fruit color parameters regardless of the fruit stage at application, although slight decreases in soluble solids content were observed in most of the treatments.
La agricultura urbana promueve el cultivo de hortalizas en la ciudad; sin embargo, se requiere germinar semillas para obtener plántulas que permitan iniciar con esta práctica una forma sostenible, sustentable y práctica.
Los estudios de caso se destacan como una metodología de pedagogía activa en la cual los estudiantes, si son orientados de manera adecuada, pueden tener un aprendizaje experiencial y significativo. El objetivo del presente artículo discute la importancia del método de caso como estrategia pedagógica para la formación gerencial e incluye una serie de pautas acerca de cómo escribir el material y como desarrollarlo dentro de un contexto de clase. Por último, se concluye que la casuística es una posibilidad pedagógica para que los estudiantes aprendan y comprendan de mejor forma las enseñanzas gerenciales frente a las tradicionales y dogmáticas que aún persisten en algunas escuelas de negocios.
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