Complementary physical and chemical treatments as an alternative to fungicide use to control postharvest decay incidence and fruit quality of Montenegrina tangerines

Cândida Raquel Scherrer Montero; Rose Beatriz Antes; Ligia Loss Schwarz; Liege Cunha dos Santos; Rinaldo Pires dos Santos; Renar João Bender

doi:10.1016/j.cropro.2010.06.014

Puparia Cleaning Techniques for Forensic and Archaeo-Funerary Studies

Insects ◽

10.3390/insects12020104 ◽

2021 ◽

Vol 12 (2) ◽

pp. 104

Author(s):

Jennifer Pradelli ◽

Fabiola Tuccia ◽

Giorgia Giordani ◽

Stefano Vanin

Keyword(s):

Sodium Hydroxide ◽

Molecular Identification ◽

Sodium Hydroxide Solution ◽

Species Level ◽

Post Mortem ◽

Molecular Analyses ◽

Chemical Treatments ◽

Wrong Identification ◽

Physical And Chemical

Diptera puparia may represent both in forensic and archaeo-funerary contexts the majority of the entomological evidence useful to reconstruct the peri and post-mortem events. Puparia identification is quite difficult due to the lack of identification keys and descriptions. In addition, external substances accumulated during the puparia permanence in the environment make the visualization of the few diagnostic characters difficult, resulting in a wrong identification. Six different techniques based on physical and chemical treatments have been tested for the removal of external substances from puparia to make identification at species level feasible. Furthermore, the effects of these methods on successful molecular analyses have also been tested as molecular identification is becoming an important tool to complement morphological identifications. The results of this study indicate that cleaning via warm water/soap, the sonication and treatment with a sodium hydroxide solution are the best methods to achieve a good quality of the samples.

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PHYSICAL AND CHEMICAL TREATMENTS ENHANCING POSTHARVEST FRUIT QUALITY IN ZUCCHINI

Acta Horticulturae ◽

10.17660/actahortic.2015.1091.17 ◽

2015 ◽

pp. 141-146 ◽

Cited By ~ 1

Author(s):

Z. Megías ◽

A. Barrera ◽

S. Manzano ◽

C. Martínez ◽

D. Garrido ◽

...

Keyword(s):

Fruit Quality ◽

Chemical Treatments ◽

Physical And Chemical

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The Efficiency of Calcium Boron and Carpox-K Sprays on Fruit Quality of Washington Navel Orange Trees

Asian Journal of Soil Science and Plant Nutrition ◽

10.9734/ajsspn/2020/v6i430095 ◽

2020 ◽

pp. 23-31

Author(s):

A. A. EL- Khwaga ◽

F. M. Abd El- Latif ◽

M. H. M. Baiea ◽

S. F. EL- Gioushy

Keyword(s):

Fruit Quality ◽

Chemical Properties ◽

Quality Parameters ◽

Navel Orange ◽

Fertilization Program ◽

Washington Navel ◽

Orange Fruit ◽

Physical And Chemical ◽

Orange Trees

This research was conducted during seasons 2018 & 2019 on nine-years-old Washington navel orange trees. These trees were grafted on Sour orange rootstock, planted at 5 x 5 meters apart, under surface irrigation conditions, in a private orchard at Manzala village, Toukh region, Qalubia Governorate, Egypt. The seven treatments were used for comparison as follows: T1-100% of chemical NPK (NPK fertilization program adopted at 5, 3 and 1 kg/tree from (NH4)2SO4, superphosphate and K2SO4, respectively) according to the Ministry of Agriculture Recommendation (Control or recommended doses RD). T2-RD+Calcium boron 2 cm3 /L; T3-RD+Calcium boron 3 cm3/L; T4-RD+Carpox-K 1g/L; T5-RD+Carpox-K 1.5g/L; T6-RD+Calcium boron 2 cm3 /L +Carpox-K 1g/L, and T7-RD+Calcium boron 3 cm3/L +Carpox-K 1.5g/L. The main goal of this investigation was directed towards increasing Washington navel orange fruit quality. The obtained data revealed that all investigated treatments increased fruit quality parameters (physical and chemical properties). However, T7- RD + Calcium boron 3 cm3 /L + Carpox-K 1.5g/L was statistically superior. On the contrary, T1- Control or recommended doses (RD) ranked statistically the lowest treatment in this concern. From the obtained results, It can be concluded that the use of RD+ Calcium boron 3 cm3 / L + Carpox-K 1.5g / L or RD+ Calcium boron 2 cm3/ L + Carpox-K 1g / L could be safely recommended under similar environmental and horticultural practises adopted in this experiment.

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Thidiazuron affects the quality of 'Gala' apples stored under controlled atmosphere

Ciência Rural ◽

10.1590/s0103-84782010000400011 ◽

2010 ◽

Vol 40 (4) ◽

pp. 813-819 ◽

Cited By ~ 1

Author(s):

Ricardo Fabiano Hettwer Giehl ◽

Ivan Sestari ◽

Ana Cristina Eisermann ◽

Auri Brackmann

Keyword(s):

Partial Pressure ◽

Respiration Rate ◽

Fruit Quality ◽

Titratable Acidity ◽

Controlled Atmosphere ◽

Full Bloom ◽

Postharvest Decay ◽

Flesh Firmness ◽

Apple Fruits

This work was carried out aiming to evaluate the effect of thidiazuron (TDZ) on the quality of 'Gala' apples stored under controlled atmosphere (CA) conditions. Plants were sprayed at full bloom with TDZ at 0, 10, 20, or 40g ha-1 (a.i.). Harvested fruits were then stored in CA with 1.0+2.5, 1.5+2.5 and 1.5+5.0 (kPa O2+kPa CO2), both at 0.5°C. In addition, the partial pressure of 1.5kPa of O2+2.5kPa of CO2 was also evaluated at -0.5°C. Higher flesh firmness and titratable acidity was obtained by applying 20 or 40g ha-1 TDZ. Furthermore, these TDZ doses decreased the respiration rate as well as the occurrence of flesh breakdown, mealiness and decay. The application of TDZ at doses ranging from 20 to 40g ha-1 maintains higher fruit quality for up to 8 months under CA. In addition, the storage of 'Gala' apples under CA with 1.0kPa O2+2.5kPa CO2 at 0.5°C results in higher flesh firmness and titratable acidity. Moreover, this CA condition reduces the incidence of flesh breakdown, mealiness and postharvest decay in 'Gala' apple fruits.

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Vegetative growth, yield, and fruit quality of guava (Psidium guajava L.) cv. Maamoura as affected by some biostimulants

BioResources ◽

10.15376/biores.16.4.7379-7399 ◽

2021 ◽

Vol 16 (4) ◽

pp. 7379-7399

Author(s):

Walid F. A. Mosa ◽

Lidia Sas-Paszt ◽

Krzysztof Górnik ◽

Hayssam M. Ali ◽

Mohamed Z. M. Salem

Keyword(s):

Fruit Quality ◽

Vegetative Growth ◽

Irrigation System ◽

Growth Yield ◽

Psidium Guajava ◽

Fruit Weight ◽

Leaf Chlorophyll ◽

Physical And Chemical ◽

Control Water

The present study was performed during two successive seasons 2019 and 2020 to investigate the effect of the soil application of fulvic acid (FA), seaweed extract (SE), and their different combinations on vegetative growth, yield, and fruit quality of six-years-old guava (Psidium guajava L.) cv. ‘Maamoura’. The trees were planted 4 × 4 m2 apart in clay soil under a flood irrigation system. They were treated three times starting from mid-March with one-month intervals with the following treatments: Control (water only), 3 and 4 g/L FA, 3 and 4 g/L SE, and their different combinations; 3 g/L FA + 3 g/L SE, 3 g/L FA + 4 g/L SE, 4 g/L FA + 3 g/L SE, and 4 g/L FA + 4 g/L SE. The results clearly showed that the application of FA or SE solely or in combinations increased shoot length and diameter, as well as leaf chlorophyll compared with the control. The treatments also increased fruit set percentage, fruit yield, and fruit physical and chemical characteristics such as fruit weight, size, TSS%, total reduced and non-reduced sugars, as well as leaf mineral content, while they decreased the fruit acidity compared with the control in the two seasons.

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Yield and fruit quality of Ziziphus jujuba L. trees as affected by preharvest foliar application of calcium and ascorbic acid

Acta Scientiarum Polonorum Hortorum Cultus ◽

10.24326/asphc.2020.5.15 ◽

2020 ◽

Vol 19 (5) ◽

pp. 151-158

Author(s):

Adel Mohamed Al-Saif ◽

Mahmoud Abdel-Aziz Ahmed ◽

Rashid Al-Obeed ◽

Ahmed Said El-Sabagh

Keyword(s):

Ascorbic Acid ◽

Fruit Quality ◽

Foliar Application ◽

Fruit Weight ◽

King Saud University ◽

Experimental Station ◽

Ziziphus Jujuba ◽

Physical And Chemical ◽

Control Water

The present study was carried out during the seasons of 2014 and 2015 at the Research and Agricultural Experimental Station, King Saud University, Saudi Arabia, to investigate the effects of foliar application of CaCl2 at 1 or 2%, Ca(NO3)2 at 0.5 or 1% and ascorbic acid at 50 or 100 ppm on yield and fruit quality of Ziziphus jujuba trees. All treatments were repeated twice (December 15 and January 15) before harvest date in both seasons. Treatments significantly improved yield and fruit physical characteristics (fruit weight, flesh weight, fruit volume, fruit length, fruit diameter and fruit firmness) in comparison to untreated control in both seasons. Fruit chemical characteristics (TSS, Acidity, total sugar contents, ascorbic acid, and total chlorophyll) were mostly improved by most tested treatments in both seasons over the control (water only). It can be concluded that foliar application with Ca(NO3)2 at 1% would be the best treatment to obtain highest yield, fruit physical and chemical composition of Z. jujuba.

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Performance of interstocks in the plant development and fruit quality of plum trees

Acta Scientiarum Agronomy ◽

10.4025/actasciagron.v41i1.39928 ◽

2019 ◽

Vol 41 (1) ◽

pp. 39928

Author(s):

João Alison Alves Oliveira ◽

Cláudio Horst Bruckner ◽

Danielle Fabíola Pereira da Silva ◽

Carlos Eduardo Magalhães dos Santos ◽

Wellington Dos Santos Soares ◽

...

Keyword(s):

Fruit Quality ◽

Block Design ◽

Plant Size ◽

Chemical Analyses ◽

Randomized Block Design ◽

Fruit Growing ◽

Lower Height ◽

Physical And Chemical ◽

Fruit Mass

The production of compact plants, which are slightly lacking in vigor and as productive as conventionally sized plants, is a trend in fruit growing. The objective of this study was to evaluate the vegetative performance and fruit quality of Gulfblaze and Reubennel plums intergrafted into two peach genotypes (UFV 186 and UFV 286). The experiment was arranged in a randomized block design using a 3x2 factorial arrangement (interstocks x cultivar) with four replications and one plant per plot. The non-intergrafted treatment was considered the control. Ten fruits were collected per plot for physical and chemical analyses. The evaluations were performed in the years 2014 and 2015. The interstock UFV 286 produced Gulfblaze trees with lower height in the two years of evaluation. When using the UFV 286 interstock, the trunk diameters were 50.2% smaller in Gulfblaze and 44.25% smaller in Reubennel than the control cultivars. Intergrafting had no influence on the fruit mass of Reubennel. In general, the peach genotypes UFV 186 and UFV 286 can be recommended as interstocks for reducing plant size in the plums studied. Intergrafting had no effect on fruit quality of Reubennel plums.

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Strand thinning of Khadrawi date palm cultivar in relation to yield and fruit quality

Bulletin of the National Research Centre ◽

10.1186/s42269-019-0234-3 ◽

2019 ◽

Vol 43 (1) ◽

Author(s):

A. R. Moustafa ◽

N. Abdel-Hamid ◽

A. Abd El-Hamid ◽

M. R. El-Sonbaty ◽

S. K. M. Abd El-Naby

Keyword(s):

Fruit Quality ◽

Date Palm ◽

Chemical Properties ◽

Fruit Weight ◽

Total Sugars ◽

Palm Fruits ◽

And Control ◽

Physical And Chemical ◽

And Chemical Properties

Abstract Background This experiment was carried out during 2015 and 2016 seasons to investigate the effect of strand thinning treatments by removing 15 and 30% of the total number of strands from the bunch center after 8 weeks from pollination (kimri stage) on productivity and fruit quality of Khadrawi date palm cultivar compared to the control (without thinning). Results The present results indicated that strand thinning by removing 30% of the total number of strands gave the lowest bunch weight and yield per palm compared to thinning 15% and control treatments during the two seasons of study. Also, removing 30% of the total number of strands improved some physical properties, i.e., fruit weight, flesh weight, fruit length, and fruit diameter than control in both seasons. All strand thinning treatments improved some chemical properties such as TSS %, total sugars %, and reducing sugars % than control (without thinning). However, both 15 and 30% strand thinning treatments had no significant effect on nonreducing sugars %, total acidity %, and tannins content in the two studied seasons. Conclusion From the obtained results, it was revealed that application of thinning treatment by removing 15 or 30% of the total number of strands from bunch center improved some physical and chemical properties of Khadrawi date palm fruits although there are no significant differences found between strand thinning at 15% and control during the second season.

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