Efeito de reguladores de crescimento sobre os teores de ácido ascórbico e carboidratos solúveis de morango (Fragaria hybridus)

Several growth regulators were sprayed on strawberry plants: SADH (5000 ppm), CCC (2000 ppm), IAA (10 ppm, 3 times), GA 10 ppm, 3 times) and GA (550 ppm), Ascorbic acid, dry weight and soluble carbohydrates contents of fruits were determined. Statistically differences were not observed between treatments and control. Dry weight varied from 7.62 to 9.53%. Ascorbic acid content varied from 35.88 to 71.81 mg/100 g on fresh weight basis. Mean values of soluble carbohydrates, in grams/100 g on fresh weight basis, were total (5.58), sucrose (1.01), glucose (1.63) and frutose (1.54).Foram feitas aplicações dos seguintes reguladores de crescimento em morango (Fragarm hybridus): SADH a 5000 ppm, CCC a 2000 ppm, ATA a 10 ppm (3 aplicações), ácido giberélico a 10 ppm (3 aplicações) e 550 ppm. Análises de peso seco, ácido ascórbico e carboidratos solúveis dos frutos foram efetuadas a fim de se estudar o efeito desses reguladores de crescimento. Não foram detectadas diferenças significativas entre os diversas tratamentos e o controle. O peso seco variou de 7,62 a 9,53%. O conteúdo de ácido ascórbico variou de 35,88 a 71,81 mg/100 g de peso fresco. Os teores médios de carboidratos solúveis, expresso em g/100 g peso fresco, foram: totais (5,58), sacarose (1,01), glucose (1,63) e frutose (1,54)

INVESTIGATION OF PROCESS AND ENERGY PARAMETERS DURING HYDRAULIC SHOCK MOULDING

Subject of investigation: process of the hydraulic shock stamping and equipment for its execution. Purpose of the work: investigation of the laws of the shock moulding process and creation of a generalized mathematical model of an impact press. A mathematical model is developed for the hydraulic shock moulding process and for a device for its execution. The proposed models were used as a basis for the study of the power parameters of a hydraulic shock stamping unit. A methodology is developed for calculating the stress-deformed state of the blank material during the hydraulic shock moulding. Coefficients are determined as to the stamping capability of some sheet constructional materials. A pneumatic shock unit actuating mechanism is adopted for use. Field of application: machine building enterprisesAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio