Laboratory Sensitivity Study of Two Cultivars of Strawberry (Fragaria x ananass) Fruit to Bruising
Journal Title: Journal of Agricultural Machinery - Year 2013, Vol 3, Issue 1
Abstract
In the present research, susceptibility of two strawberry cultivars (Selva and Gavita) to bruising was studied. Individual fruits were subjected to impact and compressive forces. Impact forces were applied through dropping the fruits from predetermined heights as well as pendulum. Bruising volume was considered as damage index. In both methods bruising severity was increased as a function of impact energy. Dropped fruits were showed higher bruising volume than those of fruits impacted by pendulum for similar energy levels. Increasing energy level by a factor of four (from 0.022 to 0.082 J) caused the bruise volume to increase by a factor of three (from 46 to 134.5 mm3). Increasing drop height from 18 cm (0.026 J) to 54 cm (0.079 J) caused the bruise volume to increase up to 35%. Bruise severity due to compression force was higher than those of obtained from other tests. Doubling the loading time from 2 to 4 seconds showed no significant difference in bruise volume. Although Gavita variety had greater sensitivity to bruising than Selva variety, the effect of variety was significant only in impact test with pendulum tester.
Authors and Affiliations
S. Aliasgarian Najafabadi,H. R. Ghasemzadeh,M. Moghaddam,
Keywords
Related Articles
- EP ID EP717679
- DOI -
- Views 22
- Downloads 0
Developing the Computational Simulator to Control the Ventilation Condition of Poultry House and Optimize the Production
IntroductionIn livestock and specifically poultry houses, controlling the internal environment conditions is a key factor to increase animal productivity and prevent their casualties. Controlling the atmospheric conditio...
Rheological properties of strawberry fruit coating with methylcellulose
Introduction: The maintenance of the quality of fresh products is still a major challenge for the consumers. The most important quality attributes contributing to the marketability of fresh fruit include appearance, colo...
Optimization and Analysis of a λ-Formed Straight Line Linkage for Design of Reversible Disk Plow.
Disk plows are one of the most important tillage tools. Two way (reversible) disk plows can perform continues plowing. So they can save time and costs and hence improve overall efficiency. In this study, a “two-way” disk...
Grain Physical Properties of Some Sunflower Cultivars Influenced by Water Deficit Stress
In order to investigate the water deficit impact on physical characteristics of seed in four sunflower hybrids (Azargol, Allstar, Hysun 33 and Hysun25), under three irrigation regimes (irrigation after 50, 100 and 150 mm...
Fabrication and evaluation of variable rate fertilizer system
Introduction: In conventional farming, the soil and crop are considered uniform in different locations of the farm and the fertilizers are applied according to the average of soil needs with an additional percentage for...