The use of methyl jasmonate has demonstrated its efficiency to extend the vase life of cut flower... more The use of methyl jasmonate has demonstrated its efficiency to extend the vase life of cut flowers. The objective of this study was to evaluate the effect of methyl jasmonate associated with storage at low temperatures on the postharvest quality of Rosa cv. Avalanche stems. The treatments consisted of 125, 250, 500 and 1000 μM of methyl jasmonate, besides the control with distilled water. The flower buds were sprayed with 4 mL of the solution, according to the treatments, and then kept in a cold chamber (1 °C) for periods of 2 and 6 days. Subsequently, the stems were taken to the postharvest laboratory at a temperature of 16 °C. Better quality, higher fresh weight and water absorption were observed in flower stems stored for 2 days. The application of methyl jasmonate caused less turgescence and greater darkening of roses. It was possible to conclude that two days is the best storage time at 1 °C and the use of methyl jasmonate does not maintain the quality of roses cv. Avalanche af...
The manipulation of the intensity and spectral quality of the solar radiation in plant growing is... more The manipulation of the intensity and spectral quality of the solar radiation in plant growing is done by using neutral or color shading nets. Although it can cause changes in plant development, it is not known the effect on post harvest quality when these shade cloths are used. Thus, the objective was to evaluate the effects of nets of different shading levels and spectral quality in alpinias 'Jungle King' and 'Jungle Queen' post-harvest quality. Flower stems stemmed crop under black shade cloths, with 30% and 50% shading, and blue and red nets with 50% of shading were maintained at the ambient temperature of 23°C for 15 days. The experimental design was distributed in a completely randomized way, totaling eight treatments of 4 replicates and two flower stems per plot. Evaluations of water uptake, relative fresh weight and quality through a scale of notes given by three evaluators were performed every two days, while reviews of the color of the bracts brightness par...
The use of methyl jasmonate has demonstrated its efficiency to extend the vase life of cut flower... more The use of methyl jasmonate has demonstrated its efficiency to extend the vase life of cut flowers. The objective of this study was to evaluate the effect of methyl jasmonate associated with storage at low temperatures on the postharvest quality of Rosa cv. Avalanche stems. The treatments consisted of 125, 250, 500 and 1000 μM of methyl jasmonate, besides the control with distilled water. The flower buds were sprayed with 4 mL of the solution, according to the treatments, and then kept in a cold chamber (1 °C) for periods of 2 and 6 days. Subsequently, the stems were taken to the postharvest laboratory at a temperature of 16 °C. Better quality, higher fresh weight and water absorption were observed in flower stems stored for 2 days. The application of methyl jasmonate caused less turgescence and greater darkening of roses. It was possible to conclude that two days is the best storage time at 1 °C and the use of methyl jasmonate does not maintain the quality of roses cv. Avalanche af...
The use of methyl jasmonate has demonstrated its efficiency to extend the vase life of cut flower... more The use of methyl jasmonate has demonstrated its efficiency to extend the vase life of cut flowers. The objective of this study was to evaluate the effect of methyl jasmonate associated with storage at low temperatures on the postharvest quality of Rosa cv. Avalanche stems. The treatments consisted of 125, 250, 500 and 1000 μM of methyl jasmonate, besides the control with distilled water. The flower buds were sprayed with 4 mL of the solution, according to the treatments, and then kept in a cold chamber (1 °C) for periods of 2 and 6 days. Subsequently, the stems were taken to the postharvest laboratory at a temperature of 16 °C. Better quality, higher fresh weight and water absorption were observed in flower stems stored for 2 days. The application of methyl jasmonate caused less turgescence and greater darkening of roses. It was possible to conclude that two days is the best storage time at 1 °C and the use of methyl jasmonate does not maintain the quality of roses cv. Avalanche af...
The manipulation of the intensity and spectral quality of the solar radiation in plant growing is... more The manipulation of the intensity and spectral quality of the solar radiation in plant growing is done by using neutral or color shading nets. Although it can cause changes in plant development, it is not known the effect on post harvest quality when these shade cloths are used. Thus, the objective was to evaluate the effects of nets of different shading levels and spectral quality in alpinias 'Jungle King' and 'Jungle Queen' post-harvest quality. Flower stems stemmed crop under black shade cloths, with 30% and 50% shading, and blue and red nets with 50% of shading were maintained at the ambient temperature of 23°C for 15 days. The experimental design was distributed in a completely randomized way, totaling eight treatments of 4 replicates and two flower stems per plot. Evaluations of water uptake, relative fresh weight and quality through a scale of notes given by three evaluators were performed every two days, while reviews of the color of the bracts brightness par...
The use of methyl jasmonate has demonstrated its efficiency to extend the vase life of cut flower... more The use of methyl jasmonate has demonstrated its efficiency to extend the vase life of cut flowers. The objective of this study was to evaluate the effect of methyl jasmonate associated with storage at low temperatures on the postharvest quality of Rosa cv. Avalanche stems. The treatments consisted of 125, 250, 500 and 1000 μM of methyl jasmonate, besides the control with distilled water. The flower buds were sprayed with 4 mL of the solution, according to the treatments, and then kept in a cold chamber (1 °C) for periods of 2 and 6 days. Subsequently, the stems were taken to the postharvest laboratory at a temperature of 16 °C. Better quality, higher fresh weight and water absorption were observed in flower stems stored for 2 days. The application of methyl jasmonate caused less turgescence and greater darkening of roses. It was possible to conclude that two days is the best storage time at 1 °C and the use of methyl jasmonate does not maintain the quality of roses cv. Avalanche af...
Uploads
Papers by Mariane O Maia