J. T. Vilela de Resende, R. Matos, D. Zeffa, L. Constantino, S. M. Alves, M. U. Ventura, N. C. Resende, K. Youssef
{"title":"Relationship between salicylic acid and resistance to mite in strawberry","authors":"J. T. Vilela de Resende, R. Matos, D. Zeffa, L. Constantino, S. M. Alves, M. U. Ventura, N. C. Resende, K. Youssef","doi":"10.2478/fhort-2021-0008","DOIUrl":"https://doi.org/10.2478/fhort-2021-0008","url":null,"abstract":"Abstract The two-spotted spider mite (TSSM) Tetranychus urticae is a polyphagous pest which infests several wild and cultivated species of plants worldwide. To date, this mite is the most deleterious pest attacking the strawberry plant under a protected environment. Exogenously applied salicylic acid (SA) has been found to induce resistance to biotic and abiotic stresses. Morpho-anatomical changes in strawberry leaflets and TSSM preference tests were investigated in response to SA treatment. Plants grown in a greenhouse were foliar sprayed with different concentrations of SA (0 mg · L−1, 25 mg · L−1, 50 mg · L−1, 75 mg · L−1 and 100 mg · L−1). After the third application, certain parameters including the number of glandular and non-glandular trichomes, thickness of leaflet, abaxial cell wall, adaxial cell wall, palisade and lacunous parenchyma and mesophyll were measured using scanning electronic microscopy (SEM). Two-choice and non-choice assays were employed to verify the TSSM preference. Exogenous treatment with SA promoted morpho-anatomical changes in the following parameters, namely: thickness of the leaflets, mesophyll, lacunous and palisade parenchyma, cell wall (abaxial and adaxial) and the number of glandular and non-glandular trichomes in strawberry leaflets. In general, TSSM preferred less leaflets treated with SA compared with the control in a two-choice assay. A lesser number of TSSM eggs and live females were also recorded in leaflets treated with SA compared with the control plants in no-choice assays. The values of the number of eggs and live females correlated negatively with those obtained for the morpho-anatomical traits induced by exogenous SA.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"33 1","pages":"107 - 119"},"PeriodicalIF":2.0,"publicationDate":"2021-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42391724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Morphological and biochemical variations induced by synergy of salicylic acid and zinc in cockscomb","authors":"A. Shoaib, M. Ferdosi, M. Saleem, Shabnam Javed","doi":"10.2478/fhort-2021-0006","DOIUrl":"https://doi.org/10.2478/fhort-2021-0006","url":null,"abstract":"Abstract Celosia argentea var. cristata is an edible plant mainly cultivated as an ornament for its spectacular flowering and is highly appreciated by horticulturists for its originality, unique appearance of flower and better vase life. Utilisation of plant growth regulator [salicylic acid (SA)] and mineral nutrition [zinc (Zn)] is a sustainable approach to ameliorate crop health and yield. A field experiment was performed on a randomised complete block design with 12 treatments in 36 blocks to investigate the effectiveness of the combined application of SA (50 ppm and 100 ppm) and Zn (ZnSO4: 0.5 ppm, 1.5 ppm and 2.5 ppm) as well as when each one is applied separately on vegetative, reproductive, physiochemical attributes in C. argentea var. cristata. Results analysed through Tukey's honestly significant difference (HSD) test, biplot and heat map indicated a significantly greater improvement up to 2.5 folds in the growth attributes when plants received foliar application of 100 ppm of SA combined with 2.5 ppm of Zn as compared to control group. All treatments modified the physiobiochemical responses of plants by lowering catalase (CAT) activity significantly, and enhancing photosynthetic pigments, total protein content and peroxidase (POX) and polyphenol oxidase (PPO) activities as compared to the control group. It was concluded that foliar application of SA (100 ppm) + Zn (2.5 ppm) at pre-flowering stage could be applied to obtain better growth and flower quality in cockscomb.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"33 1","pages":"79 - 90"},"PeriodicalIF":2.0,"publicationDate":"2021-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41718779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Ergül, Burcu Pelin Büyük, N. Hazrati, F. Yilmaz, K. Kazan, Nur Arslan, C. Y. Özmen, Semra Aydin, M. Bakır, N. Tan, İ. Kösoğlu, F. Çobanoğlu
{"title":"Genetic characterisation and population structure analysis of Anatolian figs (Ficus carica L.) by SSR markers","authors":"A. Ergül, Burcu Pelin Büyük, N. Hazrati, F. Yilmaz, K. Kazan, Nur Arslan, C. Y. Özmen, Semra Aydin, M. Bakır, N. Tan, İ. Kösoğlu, F. Çobanoğlu","doi":"10.2478/fhort-2021-0005","DOIUrl":"https://doi.org/10.2478/fhort-2021-0005","url":null,"abstract":"Abstract The common fig (Ficus carica L.) is a tree species and is one of the oldest fruit trees cultivated in Turkey. The Western Anatolian region of Turkey produces nearly a quarter of the total dried fig production of the world. This region also harbours a rich fig germplasm. However, so far this germplasm has remained largely uncharacterised. In this study, using 14 simple sequence repeat (SSR) primer pairs, we analysed a total of 310 fig accessions from six different regions of Anatolia. In structure analyses, Western Anatolian accessions formed a group, which was correlated with their geographical distribution. In addition, 7 identical, 36 synonymous, and 22 homonymous fig accessions were identified. In multilocus lineages (MLLs) analysis a total of 54 accessions were matched to different accessions as clone assignment. The results will facilitate future germplasm management and breeding efforts in this economically important tree species by identifying genetic diversity, genetic relations and characterising the structure of studied populations and accessions.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"33 1","pages":"49 - 78"},"PeriodicalIF":2.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42643871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Treder, A. Borkowska, W. Treder, K. Sikorska-Zimny
{"title":"Effects of supplemental lighting using HPS and LED lamps with different light spectra on growth and yield of the cucumber (Cucumis sativus L.) during winter cultivation in greenhouse","authors":"J. Treder, A. Borkowska, W. Treder, K. Sikorska-Zimny","doi":"10.2478/fhort-2021-0002","DOIUrl":"https://doi.org/10.2478/fhort-2021-0002","url":null,"abstract":"Abstract The aim of the experiment was to assess the effects of supplemental lighting of cucumber grown in greenhouse using lamps with differentiated light spectra: sodium lamps – high-pressure sodium (HPS) and light emitting diodes (LEDs). Plants (cucumber ‘Pacto’ F1) were grown in two greenhouse compartments with five light treatments: I – HPS + LED (top light with HPS LEDs as interlighting), II – only HPS as top light, III – LED R (LED chips on board (COB) type with an increased level of red band), IV – LED W (LED COB type, white), V – LED B (LED COB type with an increased level of blue spectrum). Light treatments: HPS + LEDs and HPS were grown in one greenhouse compartment and the other three light treatments: LED R (red light supplementation), LED W (without additional supplementation) and LED B (red spectrum supplementation) in the second compartment in analogous climatic conditions. The LED lamps using COB technology are known to be a very efficient source of light. Plants were cultivated from December 2018 to March 2019 in mineral wool slabs Grotop Master (100 × 15 × 10) with four plants on one mat. They were illuminated for 18 h (from 5 am to 11 pm), setting the threshold value (on and off) at 130 W. The plants were drip-irrigated with a complete nutrient solution. The irrigation was controlled based on a weighting system. The assessment of the effect of lighting on early yield and quality of cucumbers was completed after 8 weeks of cropping. It was shown that it was possible to obtain 3.59 kg from one plant during the 8-week period of evaluation by illuminating plants with sodium lamps (HPS), while using HPS and LEDs as additional illuminated inter-rows 3.89 kg. The yield of plants illuminated by LED lamps varied depending on the variant of the spectrum used and was respective for LED R, LED W and LED B, 3.30 kg, 3.90 kg and 3.25 kg. The obtained results indicated that the yield of cucumber ‘Pacto’ F1 grown with HPS lamps at top lighting and at the same time using interlighting with LED lamps was similar to LED W lamps (i.e. without additional supplementation in the range of red (LED R) and blue (LED B) light). Due to good results of LED lamps (type COB for top lighting or as interlighting) used for the cucumber supplemental lighting and high energy efficiency of LEDs, the promising future for that type of lamps compared with traditionally used HPS during winter cultivation in a greenhouse was demonstrated.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"33 1","pages":"9 - 15"},"PeriodicalIF":2.0,"publicationDate":"2021-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42774591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Demasi, M. Caser, D. Donno, S. Enri, M. Lonati, V. Scariot
{"title":"Exploring wild edible flowers as a source of bioactive compounds: New perspectives in horticulture","authors":"S. Demasi, M. Caser, D. Donno, S. Enri, M. Lonati, V. Scariot","doi":"10.2478/fhort-2021-0004","DOIUrl":"https://doi.org/10.2478/fhort-2021-0004","url":null,"abstract":"Abstract The increasing interest in healthy and natural foods has raised the attention towards uncommon or unexplored ingredients, such as edible flowers. These products are proven to be a rich source of bioactive compounds, for example, vitamins or polyphenols that play an important role in health promotion and disease prevention. However, plant species with edible flowers are numerous and most of them still need to be studied with this aim. The high species richness of North-Western Italy provides interesting perspectives in the use of wild edible flowers, which are currently underutilized, but can be a valuable food source or food supplement for healthy diets. In this framework, the phytochemical composition of 22 wild edible flowers was analysed and compared with that of four cultivated species (Borago officinalis L., Calendula officinalis L., Tagetes patula L. and Tropaeolum majus L.) to evaluate their potentiality as sources of bioactive compounds. The total polyphenol content (TPC) and antioxidant activity of the fresh flowers were assessed, together with their phenolic profiles and vitamin C content, through spectrophotometric and chromatographic analyses. The evaluated parameters varied widely among species, with Paeonia officinalis L. and Rosa pendulina L. showing the highest values of polyphenols (1,930 mg gallic acid equivalents (GAE) · 100 g−1 and 1,774 mg GAE · 100 g−1, respectively), followed by Rosa canina L. (1,397 mg GAE · 100 g−1) and Geranium sylvaticum L. (1,268 mg GAE · 100 g−1). The same species also showed the highest antioxidant activity, measured with three different assays [ferric reducing antioxidant power (FRAP), 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulfonic acid (ABTS)]. The phenolic profile differed among the studied species, with Dianthus pavonius Tausch and R. pendulina having the highest sum of detected polyphenols (2,522 mg · 100 g−1 and 2,366 mg · 100 g−1, respectively). Vitamin C was identified in all but two flowers (Allium ursinum L. and B. officinalis) and Primula veris L. had the highest amount (45 mg · 100 g−1). The study showed that wild edible flowers outperformed the cultivated species, except for T. majus, providing new insights for the use of wild edible flowers as sources of bioactive compounds.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"33 1","pages":"27 - 48"},"PeriodicalIF":2.0,"publicationDate":"2021-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47546833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The need for a coordinated action to elucidate ecological occurrence and functions of endophytic fungal communities","authors":"R. Nicoletti, F. Vinale","doi":"10.2478/fhort-2021-0003","DOIUrl":"https://doi.org/10.2478/fhort-2021-0003","url":null,"abstract":"Abstract Research concerning endophytic fungi has recently received a remarkable boost following a general trend to investigate and exploit biodiversity in all its forms, and because of the easier access to equipment and methods, which enables quicker identification procedures. The available data highlight that, besides the plant hosts, endophytes consistently interact with the other components of biocoenosis, and that the assortment of the microbial consortium is also to be considered on account of the reciprocal influence between the several species which are part of it. Unravelling these complex ecological relationships is fundamental because of possible translational applications, particularly regarding crop management. However, this requires that the available information concerning plant species, ecological contexts or functional categories of endophytes is examined fully. In this aim, a coordinated effort appears to be necessary to organise the current knowledge to increase the significance and the practical impact of new findings.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"33 1","pages":"1 - 7"},"PeriodicalIF":2.0,"publicationDate":"2021-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41787908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yaping Tang, Guoru Zhang, Tao Yang, Shengbao Yang, P. Aisimutuola, Baike Wang, Ning Li, Juan Wang, Qinghui Yu
{"title":"Biochemical variances through metabolomic profile analysis of Capsicum chinense Jacq. during fruit development","authors":"Yaping Tang, Guoru Zhang, Tao Yang, Shengbao Yang, P. Aisimutuola, Baike Wang, Ning Li, Juan Wang, Qinghui Yu","doi":"10.2478/fhort-2021-0001","DOIUrl":"https://doi.org/10.2478/fhort-2021-0001","url":null,"abstract":"Abstract Capsicum chinense Jacq. is classified under the Solanaceae family, which is an extensively consumed spice and vegetable globally. Therefore, to gain more knowledge and insight into the diversity of Capsicum chinense Jacq. metabolites, a total of 18 placental tissues from various development stages were collected and untargeted metabolomics was conducted by means of ultra-performance liquid chromatography (UPLC) and mass spectrometry (MS). Principal component analysis (PCA) analysis established the existence of distinct metabolite distribution patterns as observed at 16 days post anthesis (DPA), compared with the metabolites at 36 and 48 DPA groups, whereas there was a difference in metabolites between the orange ripening period (B) and the red ripening period (C), which intersected with each other. Furthermore, several pathways including metabolic pathways, biosynthesis of phenylpropanoids, ABC transporters, alanine, aspartate and glutamate metabolism, fatty acid biosynthesis, pentose and glucoronate pathways, secondary metabolites biosynthesis, cutin, biosynthesis of suberine and wax were significantly enriched across the fruit ripening stages. The capsaicin content was observed to be less in the early ripening stages, but gradually increased to a high concentration during the late ripening stages. In conclusion, our study findings submit a suitable approach for interpreting the biochemical variances of non-targeted metabolomics in hot pepper developmental stages, as well as offer new findings that can be applied in the development strategies in breeding of Capsicum chinense Jacq.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"33 1","pages":"17 - 26"},"PeriodicalIF":2.0,"publicationDate":"2021-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45861800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Šlosár, T. Kopta, O. Hegedűs, A. Hegedȕsová, I. Mezeyová, Mária Timoracká, J. Mezey
{"title":"Yield parameters, antioxidant activity, polyphenol and total soluble solids content of beetroot cultivars with different flesh colours","authors":"M. Šlosár, T. Kopta, O. Hegedűs, A. Hegedȕsová, I. Mezeyová, Mária Timoracká, J. Mezey","doi":"10.2478/fhort-2020-0030","DOIUrl":"https://doi.org/10.2478/fhort-2020-0030","url":null,"abstract":"Abstract This study aimed to evaluate yield parameters, antioxidant activity (AOA), total polyphenol content (TPC) and total soluble solids (TSS) in beetroot cultivars with different flesh colours. Field experiments were established at the Slovak University of Agriculture in Nitra in 2016 and 2017. Within the study, 16 beetroot cultivars were tested, including 11 red-fleshed (‘Boltardy’, ‘Boro’ F1, ‘Crosby Egyptian’, ‘Cylindra’, ‘Detroit Globe’, ‘Detroit 2’, ‘Egyptian Turnip Rooted’, ‘Opolski’, ‘Pablo’ F1, ‘Renova’ and ‘Taunus’ F1), 2 yellow-fleshed (‘Boldor’ F1 and ‘Golden’), 2 white-flesh cultivars (‘Albino’ and ‘White Detroit’) and 1 red-white fleshed cultivar (‘Chioggia’). All beetroot cultivars with red flesh colour showed higher AOA and TPC than different-coloured beetroot cultivars. The highest root yield was found in the white-fleshed beetroot cultivar ‘Albino’ (37.80–41.91 t · ha−1). The highest root weight was found in the white-fleshed beetroot cultivar ‘White Detroit’ (362.4–412.1 g). The highest AOA (819.19–972.50 mg TEAC · kg−1 d.w.) and TPC (2,387.70–2,731.00 mg · kg−1 d.w.) were found in the red-fleshed beetroot cultivar ‘Pablo’ F1. Different-coloured cultivars of beetroot were characterised by a lower content of TSS (6.4–8.8 ºBRIX) than cultivars with typical, red flesh colour (7.8–10.8 ºBRIX). Results clearly indicate that cultivar, or flesh colour, is showed as a significant factor influencing the quality of beetroot. Knowing of yield potential and quality of beetroot cultivars is important for growers as well as consumers. Results of this study indicate that white-fleshed cultivars of beetroot are characterised by high yield potential but lower quality, including lower AOA, TPC and TSS.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"32 1","pages":"351 - 362"},"PeriodicalIF":2.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45358043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Kahramanoğlu, S. Usanmaz, T. Alas, V. Okatan, Chunpeng Wan
{"title":"Combined effect of hot water dipping and Cistus creticus L. leaf extracts on the storage quality of fresh Valencia oranges","authors":"I. Kahramanoğlu, S. Usanmaz, T. Alas, V. Okatan, Chunpeng Wan","doi":"10.2478/fhort-2020-0029","DOIUrl":"https://doi.org/10.2478/fhort-2020-0029","url":null,"abstract":"Abstract This research was designed to test the combined efficacy of hot water dipping (HWD) and leaf extracts of Cistus creticus L. subsp. creticus on the storage quality of fresh Valencia oranges. Experiments were laid down according to a completely randomised design with 10 different treatments. Five replications, with five fruits in each replication, were used in the current study, and research was designed to continue for 150 days. Quality characteristics were observed with 30-days interval. The applications of this study were (1) Control [dipping in water at 25°C for 5 min]; (2) HWD at 50°C for 5 min; (3) HWD + Additives (A) [Arabic gum (0.2%), potassium sorbate (0.05%), citric acid (0.05%) and vitamin C (0.05%)] at 50°C for 5 min; (4) Additives alone at 25°C for 5 min; (5) 1.0% C. creticus leaf + HWD + A; (6) 1.0% C. creticus leaf + A; (7) 0.5% C. creticus leaf + HWD + A; (8) 0.5% C. creticus leaf + A; (9) 0.5% C. creticus leaf + HWD and (10) 0.5% C. creticus leaf. According to the results obtained, both the HWD and C. creticus, alone or in combination, were effective in preserving orange weight during storage, preventing pathogenic decay, maintaining visual quality and fruit firmness, delaying the reduction in titratable acidity, increasing ascorbic acid content and reducing respiration rate of the orange fruits. Results also suggested that the combined effect of HWD with C. creticus leaf extracts provided the highest efficacy.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"32 1","pages":"337 - 350"},"PeriodicalIF":2.0,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44687780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Thrips (Thysanoptera) associated with onion (Allium cepa L.) and Welsh onion (Allium fistulosum L.)","authors":"Marta Olczyk, M. Pobożniak","doi":"10.2478/fhort-2020-0028","DOIUrl":"https://doi.org/10.2478/fhort-2020-0028","url":null,"abstract":"Abstract We determined the abundance, species composition, sex ratio and seasonal dynamics of thrips on one cultivar of Welsh onion (Allium fistulosum) and eight cultivars of onion (Allium cepa) in South Poland within three vegetation seasons (2014–2016). Nine species of Thysanoptera were identified on A. cepa and A. fistulosum. Irrespective of the onion cultivar, Thrips tabaci was the dominant species (64.4% of all collected thrips specimens), while Frankliniella intonsa also occurred in high numbers (28.3%). Conversely, Welsh onion was most often inhabited by F. intonsa (62.7%), although T. tabaci was also numerous (28.3%). The predatory Aeolothrips intermedius accounted for 4.5% on A. cepa and 2.9% on A. fistulosum. In the most numerous species, T. tabaci, F. intonsa and A. intermedius populations were formed mainly by females. The cultivar most colonised by thrips was Kroll of A. fistulosum. The tested cultivars of A. cepa demonstrated varying degrees of attractiveness to thrips in the subsequent years. The relationship between populations of T. tabaci, F. intonsa and A. intermedius changed in the subsequent months of the growing season. In June, mainly T. tabaci and F. intonsa occurred on onion plants, while from July, the percentage shares of F. intonsa and the predatory A. intermedius in the thrips population on many onion cultivars increased. The level of attractiveness of A. cepa related to onion thrips, which is reported as a main pest of onion, varies depending on the year and cultivar.","PeriodicalId":12277,"journal":{"name":"Folia Horticulturae","volume":"32 1","pages":"319 - 335"},"PeriodicalIF":2.0,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46189194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}