598 research outputs found
Special Section Guest Editorial: Advanced Image Processing and Applications for Smart Agricultural Systems
No full textGuest editors Yang Li and Sezai Ercisli introduce the Special Section on Advanced Image Processing and Applications for Smart Agricultural Systems
A survey of few-shot learning in smart agriculture: developments, applications, and challenges
No full textWith the rise of artificial intelligence, deep learning is gradually applied to the field of agriculture and plant science. However, the excellent performance of deep learning needs to be established on massive numbers of samples. In the field of plant science and biology, it is not easy to obtain a large amount of labeled data. The emergence of few-shot learning solves this problem. It imitates the ability of humans' rapid learning and can learn a new task with only a small number of labeled samples, which greatly reduces the time cost and financial resources. At present, the advanced few-shot learning methods are mainly divided into four categories based on: data augmentation, metric learning, external memory, and parameter optimization, solving the over-fitting problem from different viewpoints. This review comprehensively expounds on few-shot learning in smart agriculture, introduces the definition of few-shot learning, four kinds of learning methods, the publicly available datasets for few-shot learning, various applications in smart agriculture, and the challenges in smart agriculture in future development
Antibacterial activity of aqueous and methanol extracts of Althaea officinalis and Althaea cannabina from Turkey
No full textThe chemical composition of essential oil and in vitro antibacterial activities of essential oil and methanol extract of Ziziphora persica Bunge
No full textThis study was designed to examine the chemical composition of essential oil and the in vitro antibacterial activities of essential oil and methanol extracts of Ziziphora persica. The inhibitory effects of essential oil and methanol extracts of Ziziphora persica were tested against 98 laboratory strains belonging to 51 bacteria species by using disc-diffusion assay and micro-broth dilution methods, respectively. GC and GC/MS analyses revealed that the essential oil predominantly contains (+)-pulegone (79.33%), limonene (6.78%) and piperitenone (4.2%). The antibacterial test results showed that both methanol extract and in particular essential oil of Ziziphora persica had antibacterial activity against a number of bacteria tested. The lowest MIC values (7.81 mu g/ml) were obtained with the essential oil of Ziziphora persica against Bacillus dipsauri, Corynebacterium cystitidis and Corynebacterium flavescens. (c) 2006 Elsevier Ireland Ltd. All rights reserved
Antibacterial Activities of Red Colored Radish Types (Raphanus sativus L.)
No full textThe root parts of red skin colored radish cultivars cv. Antep and cv. Cherry Belle which are belongs to Raphanus sativus L. were harvested from Erzurum region of Turkey and their methanol extracts were evaluated for antibacterial activity against 52 food borne bacteria by using disc diffusion assay. Extracts had a broad-spectrum antibacterial activity against food borne bacteria in broth micro dilution bioassays. Maximum antibacterial activity was observed against Arthrobacter ilicis, Corynebacterium ammoniagenes, Enterobacter hormaechei, Kocuria rosea, Neisseria subflava, Pantoea agglomerans, Proteus vulgaris, Psychrobacter immobilis and Shigella dysenteriae. However, cv. Antep showed antibacterial activity against Bacillus sphaericus and Corynebacterium flavescens and cv. Cherry Belle showed antibacterial activity against Arthrobacter atrocyaneus as well as. These inhibitory effects are interesting in relation to the prevention of microbial contamination in many foods
IN VITRO ANTIBACTERIAL ACTIVITIES OF BLACK AND WHITE RADISHES (RAPHANUS SATIVUS L.)
No full textThe present study was conducted to evaluate the in vitro antibacterial activities of methanol extracts of white and black coloured peel taproots of two radish types belonging to Raphanus sativus L. The antibacterial activities of the extracts were tested against 100 laboratory strains belonging to 52 bacteria species by using disc diffusion assay. The results showed that methanol extract in taproots of both black and white radishes had antibacterial activity against Arthrobacter atrocyaneus, Corynebacterium ammoniagenes, Enterobacter hormaechei, Kocuria rosea, Neisseria subflava, Pantoea agglomerans, Proteus vulgaris, Psychrobacter immobilis and Shigella dysenteriae. White radish type showed antibacterial activity against Bacillus sphaericus and Corynebacterium flavescens as well. Based on results, it is possible to conclude that white radish has a stronger and broader spectrum of antibacterial activity as compared to black radish
A short review of the fruit germplasm resources of Turkey
No full textTurkey is one of the most significant and unique countries in the world from the point of view of plant genetic resources and plant diversity. Over 85 fruit species, including almost all the deciduous fruit species, most of the subtropical and some tropical fruit are grown. Matters regarding their distribution within the provinces, nomenclature, characteristics, ethnobotanical aspects and uses are discussed, as well as knowledge about the germplasm of those species of greater economic importance, namely Malus spp., Pyrus spp., Cydonia spp., Crataegus spp., Sorbus spp., Amygdalus spp., Prunus spp., Castanea sativa L., Coryllus spp., Pistacia spp., Juglans regia L., Ribes spp., Ficus spp., Morus spp., Punica granatum L., Rubus spp., Rosa spp., Fragaria spp., Cornus mas L. and Olea spp. Several tables and distribution maps of some fruit species in Turkey are included
Chemical composition of fruits in some rose (Rosa spp.) species
No full textFruits of Rosa canina. Rosa dumalis subsp. boissieri, Rosa dumalis subsp. antalyensis, Rosa villosa, Rosa pulverulenta and Rosa pisiformis were assayed for total phenolics, ascorbic acid, total soluble solids, total dry weight, total fat, fatty acids, pH, acidity, moisture, fruit colour and macro- and micro-elements. The highest total phenolic content was observed in Rosa canina (96 mg GAE/g DW). Rosa dumalis subsp. boissieri had the highest total fat content (1.85 %), followed by Rosa pulverulenta (1.8 %) and Rosa canina ( 1.78%), respectively. Nine major fatty acids were determined in rose species and of.-linolenic acid was found to be dominant for all species. Total soluble solids, total dry weight. moisture and ascorbic acid contents of rose species varied from 29.42% (Rosa villosa)-37.33% (Rosa dumalis subsp. boissieri), 33.85% (Rosa rillosa)-40.35% (Rosa dumalis subsp. boissieri), 59.65% (Rosa dumalis subsp. boissieri)-66.15% (Rosa dumalis) and 727 mg/100 a FW (Rosa villosa) and 943 mg/100 g FW (Rosa (dumalis subsp. boissieri), respectively. Nitrogen and mineral compositions of the rose species. e.g. N. P, K, Ca and Mg, were (averagely): 1.26%, 513 mg/100 g DW, 639 mg/100 g DW, 196 mg/100 g DW and 114 ma/100 g DW. respectively. The present study shows that the native rose genotypes are extremely rich sources of phenolics, carbohydrates and ascorbic acid. demonstrating their potential use as a food or food additive. (c) 2007 Elsevier Ltd. All rights reserved
Apricot culture in Turkey
No full textTurkey is divided into nine agro-ecological regions with mountainous terrain in the periphery, a relatively flat central plateau and a narrow coastal strip. This country has diverse environment with mountains, valleys, plains and numerous rivers and lakes. Over a quarter of the country is covered with forests and woodlands. This results in marked variations in climate and vegetation around the country. Turkey and Iran (Iran Plateau) are centers of origin and diversity of many fruit species, such as apple, pear, cherry, rose, walnut, cornelian cherry, almond and more. Stone fruits comprise 20.0% of the total fruit production in Turkey, and apricot ranks first among stone fruits. Apricot can be grown in all regions of Turkey, except in the Eastern Black Sea Region and in the high plateaus of the East Anatolian Region. Turkey is a leading producer in both in fresh and dried apricots in the world. Although the percentage share of the fresh apricot trade is not significant, Turkey can enlarge this potential in the near future
- …
