scholarly journals 537 Impacts of Farming Systems and Soil Characteristics on Processing Tomato Fruit Quality

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 488B-488
Author(s):  
Giuseppe Colla ◽  
Jeff Mitchell ◽  
Durga Poudell
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Farming Systems ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Conventional System ◽  
Organic System ◽  
Low Input ◽  
Solids Content

A 2-year field study was conducted within the Sustainable Agriculture Farming Systems Project at the Univ. of California, Davis, to evaluate the effects of long-term conventional (CONV), low-input (LOW), and organic (ORG) production practices on processing tomato fruit mineral composition and quality. To establish relationships between soil chemical properties, soil water content, fruit mineral composition, and quality, this study characterized soil chemical properties and monitored soil water content through each tomato season. Soil total C, N, soluble P, exchangeable Ca, K,and Na were higher in the organic system than in the conventional system. Higher soil electrical conductivity was found in the CONV system compared to the other systems. Low input plots had soil characteristics intermediate to the other farming systems. Marketable and unmarketable yields were similar among the farming systems. Fruit N and Na were lower in the organic and low-input systems than in the conventional system. Fruit P and Ca contents were higher in the organic system than in the conventional system as a result of 11 years of manure applications. Soluble solids content, titrable acidity, color, and soluble solids yield were lower in 1998 in the organic system than in the conventional system, while no differences were found in 1999. Soil water content during the ripening stage was the major factor affecting the soluble solids content of the organic system. In the low input and conventional systems soluble solids content was most related to soil exchangeable Ca and EC, respectively.

scholarly journals 450 Impacts of Alternative Cropping Systems on Soil Physical Properties, Crop Productivity and Quality, and Water Management in California's Sacramento Valley

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 522B-522
Author(s):  
J.P. Mitchell ◽  
G. Colla ◽  
B.A. Joyce ◽  
L.M. Huyck ◽  
W.W. Wallender ◽  
...  
Keyword(s):  
Cropping Systems ◽  
Farming Systems ◽  
Water Holding Capacity ◽  
Water Infiltration ◽  
Soluble Solids ◽  
Conventional System ◽  
Organic System ◽  
Low Input ◽  
Sacramento Valley ◽  
Water Holding

The Sustainable Agriculture Farming Systems (SAFS) Project was established in 1988 to study the transition from conventional to low-input and organic farm management in California's Sacramento Valley. We evaluated the effects of these alternative farming systems on soil compaction, water-holding capacity, infiltration, and water storage in relation to tomato yield and fruit quality within the SAFS cropping systems comparison 10 years after it had been established. Soil bulk density (0-15, 15-30, 30-45, and 45-60 cm) was not significantly different among the farming systems. In situ water-holding capacity at 24, 48 and 72 h after water application was significantly higher in the organic system at all times and depths except 45-60 cm. Cumulative water infiltration after 3 h in the organic and low-input cover crop-based plots was more than twice that of the conventional system. The more rapid infiltration in the low-input and organic systems resulted in increased total irrigation needs, more water stored in the soil profile throughout the 30 days before harvest, and lower fruit soluble solids and titratable acidity in these systems relative to the conventional system. Yields were not significantly different in the organic, low-input, and conventional systems during either 1997 or 1998.

scholarly journals Postharvest quality of strawberry fruits produced in organic and conventional systems

2011 ◽  
Vol 29 (4) ◽  
pp. 577-583 ◽  
Author(s):  
Letícia KP Camargo ◽  
Juliano Tadeu V de Resende ◽  
Tânia T Tominaga ◽  
Sonia Maria Kurchaidt ◽  
Cristhiano K Camargo ◽  
...  
Keyword(s):  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Conventional System ◽  
Organic System ◽  
Camino Real ◽  
Sensorial Attributes ◽  
Solids Content ◽  
Conventional Systems

The aim of this study was to determine some physicochemical characteristics of fruits of eight strawberry cultivars (Aromas, Camino Real, Campinas, Dover, Oso Grande, Toyonoka, Tudla-Milsei and Ventana) cultivated in organic and conventional systems. The evaluated characteristics were soluble solids (SS), titratable acidity (TA), SS/AT ratio and anthocyanins. Evaluated sensory characteristics were flavor and appearance. The cultivars had a differential performance between themselves and among the systems for the evaluated characteristics. Generally, the conventional system produced fruit with higher levels of soluble solids and, organic system produced higher concentrations of anthocyanins. The fruits of the cultivar Toyonoka had the best soluble solids content in both systems and the anthocyanins content of 'Tudla-Milsei' and 'Camino Real' were proeminent in comparison to the other cultivars. The fruits from the organic system of production were preferred by judges on the sensorial attributes. The highest notes were given to the appearance of the cultivar Ventana in the conventional system and 'Tudla-Milsei' in the organic system.

scholarly journals Prediction of water content and soluble solids content of ‘manalagi’ apples using near infrared spectroscopy

2021 ◽  
Vol 922 (1) ◽  
pp. 012062
Author(s):  
K Kusumiyati ◽  
Y Hadiwijaya ◽  
D Suhandy ◽  
A A Munawar
Keyword(s):  
Infrared Spectroscopy ◽  
Water Content ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Quality Attributes ◽  
Soluble Solids ◽  
Coefficient Of Determination ◽  
Soluble Solids Content ◽  
Orthogonal Signal Correction ◽  
Solids Content

Abstract The purpose of the research was to predict quality attributes of ‘manalagi’ apples using near infrared spectroscopy (NIRS). The desired quality attributes were water content and soluble solids content. Spectra data collection was performed at wavelength of 702 to 1065 nm using a Nirvana AG410 spectrometer. The original spectra were enhanced using orthogonal signal correction (OSC). The regression approaches used in the study were partial least squares regression (PLSR) and principal component regression (PCR). The results showed that water content prediction acquired coefficient of determination in calibration set (R2cal) of 0.81, coefficient of determination in prediction set (R2pred) of 0.61, root mean squares error of calibration set (RMSEC) of 0.009, root mean squares of prediction set (RMSEP) of 0.020, and ratio performance to deviation (RPD) of 1.62, while soluble solids content prediction displayed R2cal, R2pred, RMSEC, RMSEP, and RPD of 0.79, 0.85, 0.474, 0.420, and 2.69, respectively. These findings indicated that near infrared spectroscopy could be used as an alternative technique to predict water content and soluble solids content of ‘manalagi’ apples.

scholarly journals Soil physico-hydraulic properties under organic conilon coffee intercropped with tree and fruit species

2017 ◽  
Vol 52 (7) ◽  
pp. 539-547 ◽  
Author(s):  
Gustavo Soares de Souza ◽  
Danielle Inácio Alves ◽  
Maurício Lima Dan ◽  
Julião Soares de Souza Lima ◽  
Abner Luiz Castelão Campos da Fonseca ◽  
...  
Keyword(s):  
Water Content ◽  
Bulk Density ◽  
Soil Water ◽  
Soil Water Content ◽  
Hydraulic Properties ◽  
Penetration Resistance ◽  
Native Forest ◽  
Organic System ◽  
Peach Palm ◽  
Fruit Species

Abstract: The objective of this work was to evaluate the cultivation effects of organic conilon coffee (Coffea canephora) intercropped with tree and fruit species on soil physico-hydraulic properties. Conilon coffee managements in the organic system were: T1, full-sun monoculture; T2, T3, T4, and T5, intercropping with peach palm (Bactris gasipae), gliricidia (Gliricidia sepium), banana (Musa sp.), and inga (Inga edulis), respectively; and T6, an area of secondary native forest used as a control. The evaluated soil physico-hydraulic properties were: bulk density, porosity, plant-available water capacity, soil-penetration resistance, soil-water content, soil temperature, and least limiting water range. Conilon coffee intercropped with peach palm and gliricidia resulted in lower soil bulk density and penetration resistance, and in higher total porosity, microporosity, and soil-water content. Organic coffee shaded with peach palm and gliricidia improve the soil physico-hydraulic quality, in comparison with the soil under monoculture in full sun and with the soil of secondary native forest.

scholarly journals Physical–Chemical Composition and Quality Related Changes in “Ruaner” Pear (Pyrus ussuriensis) During Freezing–Thawing Period

Molecules ◽  
2019 ◽  
Vol 24 (14) ◽  
pp. 2611
Author(s):  
Yulian Liu ◽  
Yuxia Wu ◽  
Fei Che ◽  
Zhimin Zhang ◽  
Baihong Chen
Keyword(s):  
Chemical Composition ◽  
Water Content ◽  
Soluble Sugars ◽  
Total Flavonoid ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Soluble Solids Content ◽  
Physical Chemical ◽  
Postharvest Ripening ◽  
Solids Content

“Ruaner” pear (Pyrus ussuriensis Maxim.) is a fruit crop that is frequently served frozen in China. It is a typical postharvest ripening fruit that needs to ripen after harvest before it can be eaten, and freezing–thawing is one way that pears are treated during postharvest ripening. In order to study the physical–chemical composition and quality-related changes in “Ruaner” pears that result the freezing–thawing period, “Ruaner” pears were kept in a freezer (−20 °C) for 7 days, after which they were transferred to room temperature for thawing. The color of the peel of the “Ruaner” pears changed from yellow-green to yellow and then brown. The chlorophyll content and titratable acidity (TA) decreased significantly throughout 0–12 h period. The carotenoid content tended to rise and then decrease, peaking at 3 h after thawing (HAT), while the soluble solids content (SSC), firmness, total phenolic content, and total flavonoid content all generally decreased. The composition of soluble sugars and organic acids was examined in “Ruaner” pears, and the major soluble sugars were fructose and glucose, with citric acid being the most abundant organic acid. The data suggest that freezing–thawing significantly changes firmness, water content, SSC, and TA in “Ruaner” pears. At 3–4 HAT, “Ruaner” pears have moderate hardness, high water content, low acid content, and higher total phenolic, total flavonoid, and soluble solids content. Therefore, 3–4 HAT is the best time for pears in terms of both table and processing quality.

Consequences of rainfall during summer - autumn fallow on available soil water and subsequent drainage in annual-based cropping systems

2006 ◽  
Vol 57 (3) ◽  
pp. 281 ◽  
Author(s):  
P. J. Dolling ◽  
I. R. P. Fillery ◽  
P. R. Ward ◽  
S. Asseng ◽  
M. J. Robertson
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Root Zone ◽  
Plant Cover ◽  
Farming Systems ◽  
Growing Season ◽  
Soil Water Storage ◽  
Fallow Period ◽  
Water Accumulation

This paper investigates factors controlling soil water content changes during the non-growing summer–autumn season or fallow (December–May) in annual farming systems in southern Western Australia. This was achieved by examining variation in available soil water storage to a depth of 1.0–1.5 m at 3 sites within 13 seasons. Reasons for the variation were examined using the Agricultural Production Systems Simulator (APSIM). This paper also investigated whether water accumulation during the summer–autumn period (fallow) contributed to drainage during the following growing season (May–November). This was achieved by determining the relationship between soil water content at the end of the fallow period (1 May) and the amount of drainage below 2.5 m by using APSIM coupled to historical weather records at 3 locations. At the end of the fallow, 24 mm (or 25%) of rain falling during the fallow was retained in the soil. Evaporation was the main loss of soil water during fallow periods (mean of 60 mm). Other losses included transpiration from plant cover (mean of 12 mm) and drainage below the root zone and runoff (combined mean of 13 mm). Evaporation and transpiration losses of soil water were concentrated in the surface 0.3 m. The use of APSIM to determine changes in the soil water content during the fallow indicated the importance of plants to soil water losses, the potential for higher evaporation than previously reported, and the possibility of an extended period (4–6 weeks) of drainage in sandy soils after large rainfall events (>50 mm). Soil water accumulation during the fallow period had a significant effect on simulated drainage under wheat in the following growing season. By the end of fallow there was limited ability of the soil to store water before drainage occurred due to rainfall during the fallow and the small soil water deficit under annual farming systems (1–67 mm). A 1-mm increase in soil wetness at the end of the fallow resulted in a 0.7–1-mm increase in simulated drainage during the growing season.

scholarly journals Curcumin-Based Photodynamic Sterilization for Preservation of Fresh-Cut Hami Melon

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2374 ◽  
Author(s):  
Yilin Lin ◽  
Jiamiao Hu ◽  
Shiyang Li ◽  
Siti Sarah Hamzah ◽  
Huiqin Jiang ◽  
...  
Keyword(s):  
Water Content ◽  
Sensory Quality ◽  
Fruits And Vegetables ◽  
Soluble Solids ◽  
Control Group ◽  
Escherichia Coli O157 ◽  
Soluble Solids Content ◽  
Illumination Time ◽  
Fresh Cut ◽  
Solids Content

Fresh-cut fruits and vegetables are the main sources of foodborne illness outbreaks with implicated pathogens such as Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes. This study aimed at investigating the influence of two key parameters (concentration of curcumin and illumination time) on the effects of curcumin-based photodynamic sterilization on the preservation of fresh-cut Hami melons. The results indicated that illumination with 50 μmol/L curcumin for 60 min using a blue LED lamp reduced the total aerobic microorganism count by ~1.8 log CFU/g in fresh-cut Hami melons. Besides this, the effects of photodynamic sterilization on the soluble solids content, color, water content, firmness, and sensory indices of the fresh-cut Hami melons were also evaluated. Compared to the control group, photodynamic sterilization can effectively delay the browning rate and maintain the luminosity, firmness, water content, and soluble solids content of fresh-cut Hami melon. The sensory quality was indeed preserved well after 9 days of storage in a fridge. These results showed that photodynamic sterilization is an effective and promising technology to prolong the shelf life of fresh-cut Hami melons.

SOIL WATER CONTENT AFFECTS THE AVAILABILITY OF PHOSPHATE

1985 ◽  
pp. 185-189
Author(s):  
M.C.H.Mouat Pieter Nes
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Soil Solution ◽  
Equivalent Reduction

Reduction in water content of a soil increased the concentration of ammonium and nitrate in solution, but had no effect on the concentration of phosphate. The corresponding reduction in the quantity of phosphate in solution caused an equivalent reduction in the response of ryegrass to applied phosphate. Keywords: soil solution, soil water content, phosphate, ryegrass, nutrition.

Effect of inter-row cultivation on soil carbon dioxide emission in a peach plantation

2010 ◽  
Vol 59 (1) ◽  
pp. 157-164 ◽  
Author(s):  
E. Tóth ◽  
Cs. Farkas
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Carbon Dioxide Emission ◽  
Nutrient Content ◽  
Soil Disturbance ◽  
Biological Properties ◽  
Soil Tillage ◽  
Favourable Effect ◽  
Volumetric Soil Water Content

Soil biological properties and CO2emission were compared in undisturbed grass and regularly disked rows of a peach plantation. Higher nutrient content and biological activity were found in the undisturbed, grass-covered rows. Significantly higher CO2fluxes were measured in this treatment at almost all the measurement times, in all the soil water content ranges, except the one in which the volumetric soil water content was higher than 45%. The obtained results indicated that in addition to the favourable effect of soil tillage on soil aeration, regular soil disturbance reduces soil microbial activity and soil CO2emission.

Evaluation of a Multi-Rod Probe Performance for Accurate Measurements of Soil Water Content

2020 ◽  
Author(s):  
Justyna Szerement ◽  
Aleksandra Woszczyk ◽  
Agnieszka Szyplowska ◽  
Marcin Kafarski ◽  
Arkadiusz Lewandowski ◽  
...  
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content
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