Breeding of Bisabolol Diploid and Tetraploid Varieties of Chamomile in Slovakia

Oravec, V.

doi:10.17660/actahortic.2007.749.11

Cited by 7 publications

(3 citation statements)

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“…The range of the confidence interval of the essential oil content shows that there are no significant differences between both varieties. Chamomile variety 'LUTEA', as tetraploid plants, must present higher content essential oil, from 1.0 to 1.2 %, into the dry raw-material (Oravec Sr. and Oravec Jr., 2007). In regard to results from the field experiment this respect has not been validated.…”

Section: Resultsmentioning

confidence: 99%

Slovak Chamomile Varieties and their Comparison of Natural Components

Саламон¹

2019

Current Perspectives on Medicinal and Aromatic Plants (CUPMAP)

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Chamomile, Matricaria recutita L., is one of the most important medicinal plants cultivated in the Central Europe. Primarily the dry flower anthodia, Chamomillae Flos, in its entirety has anti-inflammatory, antiseptic, healing, simulative, carminative, spasmolytic and sedative activity. Slovakia belongs to these European countries in which particular attention has been devoted to the research and development of chamomile in all its aspects including the breeding of this special crop. Prof. Dr. Robert Honcariv was the pioneer of medicinal plant breeding in Slovakia, and made the first selections in chamomile at the P. J. Safarik University in Kosice. The first variety 'BONA' was registered in the National Book Variety in 1984. The first tetraploid variety 'LUTEA' was accepted by the Slovak Central Control and Testing Institute in Agriculture in 1995. Both these varieties were from the old century. Their qualitative and quantitative parameters are very commonly inconvenient. On the present, the chamomile variety 'LIANKA' was bred at the University of Presov, Slovakia, between the years 2008-2013. Currently, this variety obtains the Certificate by the Community Plant Variety Office (CPVO) in Angers, France in 2018. The GC/MS results confirm earlier reports that major volatile constituents obtained from the flower inflorescences are /-/-αbisabolol (67.35 ± 2.82 %) and chamazulene (10.05 ± 1.04 %) and the low contents of /-/-α bisabolol oxides A and B (2.95 ± 0.32 %).

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Section: Resultsmentioning

confidence: 99%

Slovak Chamomile Varieties and their Comparison of Natural Components

Саламон¹

2019

Current Perspectives on Medicinal and Aromatic Plants (CUPMAP)

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“…Particularly, a selection from local landraces and polyploidy breeding are the most often used methods of varietal development and improvement for flower yield and oil in this crop. Researchers developed tetraploids through colchicine treatment to seeds in German chamomile [ 101 ]. The flower diameter and weight were higher in tetraploid cultivars [ 96 ].…”

Section: Genetic Improvementmentioning

confidence: 99%

A Comprehensive Review on Biology, Genetic Improvement, Agro and Process Technology of German Chamomile (Matricaria chamomilla L.)

Chauhan

Singh

Kumar

et al. 2021

Plants

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German chamomile (M. chamomilla) is recognized as a star herb due to its medicinal and aromatic properties. This plant is found across a wide range of climatic and soil conditions. Both the flower heads and blue essential oils of German chamomile possess several pharmacological properties of an anti-inflammatory, antimicrobial, antiseptic, antispasmodic and sedative, etc., nature, which makes it a highly sought after herb for use in many pharma and aroma industries. Chamomile tea, prepared from its flower heads, is also a well-known herbal tea for mind and body relaxation. Though it is a high-demand herb, farmers have not adopted this plant for large scale cultivation as a crop, which could improve their livelihood, due to the high cost in flower heads harvesting, loss in over mature and immature flower heads picking during harvesting, unavailability of varieties and agrotechnologies for machine harvesting, a lack of efficient process development of oil extraction and in the lack of improved stable varieties. There are many studies that have reported on the phytochemistry and pharmacological uses of chamomile, which further explore its importance in the medicine industry. Several studies are also present in the literature on its cultivation practices and plant ecology. However, studies on breeding behavior, genetic improvement, varietal development and mechanical harvesting are scarce in German chamomile. Hence, keeping in mind various aspects of farmers’ and researchers’ interest, earlier reports on taxonomy, floral biology, processing of oil extraction, active constituents, uses, agronomy, breeding challenges and opportunities in German chamomile are summarized in this review.

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“…Experimental analysis has been performed on a dataset of nearly 50 images. Oravec and Pavlovicova (2004) [19] created an application based on Local Binary Patterns (LBP) and Principal Component Analysis (PCA) algorithms for feature extraction. With the use of LBP extraction algorithm, maximum recognition rate of 100% was obtained, whereas with the use of PCA extraction algorithm, maximum recognition rate of 60% was obtained.…”

Section: Aishna Sharma Natasha Lalwani Mani Roja M Edinburghmentioning

confidence: 99%

Biometric Identification using Human Ear

2019

IJEAT

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Biometrics refers to the metrics of the human characteristics which has gained much popularity in recent times. It is a form of identification and access control. Widely used forms of biometrics are facial recognition, finger print recognition, iris recognition, etc. but the drawback is that most of these features change over time. The human ear is a cogent source of data to classify biometrically since its attributes do not change substantially as time progresses. This paper explores the field of ear biometric wherein the database images are re-sized to 128 x 256 pixels and then converted to grayscale image. Various transforms viz. Discrete Cosine Transform, Discrete Fourier Transform, Discrete Wavelet Transform are then applied to extract the features. The coefficients of the test image are compared with the coefficients of the registered database image. On comparison, Euclidean distance classifier is used to recognize the test image from the database. The database used consists of 25 subjects with 6 images per person out of which the initial 4 images are used to train the model, and the remaining 2 for testing. The outputs of various transforms were compared and the best accuracy obtained is 86% using Discrete Wavelet Transform.

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Breeding of Bisabolol Diploid and Tetraploid Varieties of Chamomile in Slovakia

Cited by 7 publications

References 0 publications

Slovak Chamomile Varieties and their Comparison of Natural Components

Slovak Chamomile Varieties and their Comparison of Natural Components

A Comprehensive Review on Biology, Genetic Improvement, Agro and Process Technology of German Chamomile (Matricaria chamomilla L.)

Biometric Identification using Human Ear

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