Modern commercial orchards are increasingly adopting trees of SNAP architectures (Simple, Narrow, Accessible, and Productive) as the fruits on such are, in general, more easily reachable by human or robotic harvesters. This article presents a methodology that utilizes three dimensional (3D) digitized computer models high-density pear cling-peach trees, fruit positions to quantify linear reachab...

For robotic harvesting of sweet-pepper fruits in greenhouses a sensor system is required to detect and localize the fruits on the plants. Due to the complex structure of the plant, most fruits are (partially) occluded when an image is taken from one viewpoint only. In this research the effect of multiple camera positions and viewing angles on fruit visibility and detectability was investigated....

Japanese plums are classified as climacteric; however, some economically important cultivars selected in California produce very little ethylene and require long ripening both "on" and "off" the tree to reach eating-ripe firmness. To unravel the ripening behavior of different Japanese plum cultivars, ripening was examined in the absence (air) or in the presence of ethylene or propylene (an ethy...

Winter and summer pruning are widely applied processes in all fruit trees, including in peach orchard management. This study was conducted to determine the effects of summer prunings (SP), as compared to winter pruning (WP), on shoot length, shoot diameter, trunk cross sectional area (TCSA) increment, fruit yield, fruit quality, and carbohydrate content of two early ripening peach cultivars ("E...

The aim of this research was to determine the optimal harvest time based on variations in brondolan days through parameters free fatty acid content (ALB) and water smallholder oil palm plantations. This study applied a factorial randomized block design (RAK) method consisting 2 factors, namely treatment trees with planting age 10 years replications. Observation include referring quality standar...

Seasonal changes in °Brix and °Brix/% acid ratio of Florida early season oranges and California 'Washington Navel' oranges were fitted by linear models. The constant term varied with different climatic conditions. The rate of Florida Agricultural Experiment Station Journal Series No. N-00240. Froc. Fla. State Hort. Soc. 103: 1990. change was 0.0256 °Brix/day and 0.0735 ratio/day for Florida ear...

The study of changes of nutritional value of fruit during the ripening process can help estimate the optimal date for fruit harvesting to achieve the best quality for direct consumption and further utilization. The aim of this study was to monitor the changes of chemical composition of medlar fruit (Mespilus germanica L.) measured at five various ripening stages including 134, 144, 154, 164 and...

An assessment of the oil palm plantation management and fruit supply, under the Indian contract-growers scheme was conducted in this study. Data was collected from about 96 plantations on the age of plantation, size of plantation, cost of establishment, maintenance practices and cost , yield of fresh fruit bunches, profitability of the scheme for the farmers and so on. It was observed that most...

Abstract. Detecting immature green citrus at an early stage for yield forecasting can help growers expect how many fruit they can harvest at the end of the year. Also, it can provide an in-field spatial variability of fruit that can be used for providing site-specific management of citrus trees to increase yield and profit. Yield forecasting using the machine vision technology has been a promis...

abstract- mechanical damage degrades fruit quality in the chain from production to the consumption. damage is due to static, impact and vibration loads during processes such as harvesting, transportation, sorting and bulk storage. in the present study finite element (fe) models were used to simulate the process of static bruising for apple fruits by contact of the fruit with a hard surface. thr...