Spectral quality of photo-selective nets improves phytochemicals and aroma volatiles in coriander leaves (Coriandrum sativum L.) after postharvest storage

Coriander (Coriandrum sativum L.) is one of the herbs which is used for medicinal and food purposes. In the present study the levels of selected metals in coriander leaves were determined in the samples collected from four different farmlands (Sebeta, Mekanisa, Holeta and Gefersa) in Ethiopia where its cultivation is common. The levels of metals were determined after digestion of samples with the mixture of 4 mL of HNO3 and 4 mL of HClO4 at 300 oC for 3:00 hours by flame atomic absorption spectrometry. The optimized wet digestion method for coriander leaves analysis was validated through the recovery experiment and a good percentage recovery was obtained (93.2-101%). The levels of metals were found in the range Ca, 2319–3503 mg/kg; Zn, 33.4–54.8 mg/kg and Cr, 5.55-9.86 mg/kg while the trace metals Cu, Ni, Cd and Pb were too low to be detected. The results indicated that Ethiopian coriander is a good source of essential metals and free from the toxic metals Pb and Cd. A statistical analysis of variance (ANOVA) at 95% confidence level indicated that there is significant difference (p < 0.05) in the levels of all detected metals between the four sample means. The Pearson correlation was used to predict the dependence of metal levels on one another. The levels of the metals determined in this study compared well with those reported for coriander leaves from some other parts of the world.

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Influence of Organic and Inorganic Fertilizers on Coriander (Coriandrum sativum L.) Agronomic Traits, Essential Oil and Components under Semi-Arid Climate

Agronomy ◽

10.3390/agronomy11071427 ◽

2021 ◽

Vol 11 (7) ◽

pp. 1427

Author(s):

Gulen Ozyazici

Keyword(s):

Essential Oil ◽

Seed Yield ◽

Harvest Index ◽

Agronomic Traits ◽

Climatic Conditions ◽

Coriandrum Sativum ◽

Inorganic Fertilizers ◽

Yield And Quality ◽

Biological Yield

Environmental contamination and the excessive use of inorganic fertilizers resulting in stagnant yields of field crops which necessitate the utilization of combined fertilization approach under changing climatic conditions. Current study was aimed to clarify the influence of several fertilizer sources (chemical, organic, organomineral fertilizers) on yield and quality of coriander (Coriandrum sativum L.). The results revealed that the fertilizer sources significantly affected the yield of coriander cultivars. The absence of “Year x Variety x Fertilizer Type” interactions for any of the noted parameters signaled that the detected “Variety x Fertilizer Type” interactions were constant regardless of the year factor. The recorded values of traits according to fertilizer sources different for the plant height from 61.85 to 69.67 cm, number of branches from 5.98 to 7.71 (piece/plant), number of umbels per the main umbel from 5.62 to 7.18 pieces, seed yield from 1.06 to 1.66 t/ha, the biological yield from 4.29 to 5.70 t ha−1, harvest index from 25.29 to 29.41%, essential oil ratio from 0.29 to 0.33%, and essential oil yield from 3.1 to 5.6 L ha−1. Erbaa variety was observed to be superior over the rest of the varieties producing the maximum values of 6.5 L ha−1 of essential oil, 0.36% essential oil content, 30.9% harvest index, 1.81 t/ha seed yield, and 5.9 t ha−1 biological yield with the treatment of chemical fertilizers.

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19.1: Synthesis and Spectral Quality of Flexible Display Dichroic Dye Polarizer

SID Symposium Digest of Technical Papers ◽

10.1002/sdtp.14402 ◽

2021 ◽

Vol 52 (S1) ◽

pp. 126-126

Author(s):

Xiaolian Li ◽

Rouchen Pan

Keyword(s):

Spectral Quality ◽

Flexible Display ◽

Dichroic Dye

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Postharvest storage quality of citrus fruit treated with a liquid ferment of Chinese herbs and probiotics

Scientia Horticulturae ◽

10.1016/j.scienta.2019.03.030 ◽

2019 ◽

Vol 255 ◽

pp. 169-174 ◽

Cited By ~ 3

Author(s):

Li Wang ◽

Tiao Ning ◽

Xiaoling Chen

Keyword(s):

Citrus Fruit ◽

Chinese Herbs ◽

Storage Quality ◽

Postharvest Storage

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Integration of Satellite Data with High Resolution Ratio: Improvement of Spectral Quality with Preserving Spatial Details

Sensors ◽

10.3390/s18124418 ◽

2018 ◽

Vol 18 (12) ◽

pp. 4418 ◽

Cited By ~ 4

Author(s):

Aleksandra Sekrecka ◽

Michal Kedzierski

Keyword(s):

High Ratio ◽

Data Sets ◽

Spectral Quality ◽

Local Statistics ◽

Panchromatic Image ◽

Urbanized Area ◽

Fusion Methods ◽

Spatial Quality ◽

Different Levels

Commonly used image fusion techniques generally produce good results for images obtained from the same sensor, with a standard ratio of spatial resolution (1:4). However, an atypical high ratio of resolution reduces the effectiveness of fusion methods resulting in a decrease in the spectral or spatial quality of the sharpened image. An important issue is the development of a method that allows for maintaining simultaneous high spatial and spectral quality. The authors propose to strengthen the pan-sharpening methods through prior modification of the panchromatic image. Local statistics of the differences between the original panchromatic image and the intensity of the multispectral image are used to detect spatial details. The Euler’s number and the distance of each pixel from the nearest pixel classified as a spatial detail determine the weight of the information collected from each integrated image. The research was carried out for several pan-sharpening methods and for data sets with different levels of spectral matching. The proposed solution allows for a greater improvement in the quality of spectral fusion, while being able to identify the same spatial details for most pan-sharpening methods and is mainly dedicated to Intensity-Hue-Saturation based methods for which the following improvements in spectral quality were achieved: about 30% for the urbanized area and about 15% for the non-urbanized area.

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