Huseyin Onen

Seyhan/Adana, Turkey

Dünya genelinde üretim giderlerindeki artışlar (enerji, kimyasal maddeler ve işçilik maliyetleri vb.), ortaya çıkan jeopolitik sorunlar, iklim değişikliğinin olası etkileri gibi hususlar ayçiçeği üretimini önemli düzeyde etkilemektedir. Bu durum Türkiye'nin en önemli bitkisel yağ kaynağı olan ayçiçeği ve ayçiçeğinden elde edilen ürünlerin fiyatları...

Önen, H. 2021. YABANCI OTLARIN YAŞAM ÖYKÜSÜ (GELİŞİM, ÜREME VE ADAPTASYON) STRATEJİLERİ, 9. Bölüm. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (48 sayfa). Adana, DOI: 10.13140/RG.2.2.20971.31526 -----------------------------------------------------------------------------------------...

Background The invasive alien plant species exert significant economic and ecological impacts in the introduced ranges. The occurrence reports of newly introduced species and assessing their potential spread are important for halting their future spread. Methods The presence of Ipomoea tricolor Cav. (Convolvulaceae) in Turkey is confirmed through...

Önen, H. 2021. YABANCI OTLAR VE KÜLTÜR BİTKİLERİNİN FENOLOJİK GELİŞİM AŞAMALARI, 8. Bölüm. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (40 sayfa). Adana, DOI: 10.13140/RG.2.2.13298.58569/2 -----------------------------------------------------------------------------------------------...

Önen, H. 2021. TOHUM (DİASPOR) BANKASI: TOPRAKTA YABANCI OT TOHUM REZERVİ, 7. Bölüm. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (32 sayfa). Adana, DOI: 10.13140/RG.2.2.36525.77281 -------------------------------------------------------------------------------------------------------...

Önen, H. 2021. YABANCI OTLARIN ÜREME BİYOLOJİSİ: Seksüel (Generatif) Üreme-II, 5. Bölüm, 3.Kısım. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (48 sayfa). Adana, Doi: 10.13140/RG.2.2.33383.16801/1 ----------------------------------------------------------------------------------------...

Önen, H. 2021. YABANCI OTLARIN ÜREME BİYOLOJİSİ: Seksüel (Generatif) Üreme-I, 5. Bölüm, 2.Kısım. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (51 sayfa). Adana, Doi:10.13140/RG.2.2.27065.49760/2 ---------------------------------------------------- İnsan kontrolü altında bulunan tarım...

Önen, H. 2021. YABANCI OTLARIN ÜREME BİYOLOJİSİ: Aseksüel (Vejetatif) Üreme, 5. Bölüm, 1.Kısım. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (61 sayfa). Adana, Doi: 10.13140/RG.2.2.35669.96480 -------------------------------------------------------------------------------------------...

Several ground cherry (Physalis) species have attracted significant interest due to their potential use in medicines. Nonetheless, these species are invasive weeds in some regions of the world, while cultivated for food and medicinal uses in the others. Physalis angulata is cultivated for its medicinal potential, whereas P. philadelphica is grown a...

Polygonum perfoliatum L. is an aggressive vine, currently invading the Black Sea region, Turkey. However, information about the seed germination biology of this species is scanty. The objective of the current study was to determine the seed germination biology of three naturalized populations of this species. Chemical scarification with 98% sulfuri...

Önen, H. 2021. Yabancı Otların Yayılma Stratejileri, 6. Bölüm. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (41 sayfa). Adana, DOI: 10.13140/RG.2.2.29941.91362 -----------------------------------------------------------------------------------------------------------------------------...

Önen, H. 2021. Giriş, 1. Bölüm. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (s. 1-7). Adana, DOI: 10.13140/RG.2.2.15848.39684 --------------------------------------------------------------------------------------------------------------------------------------------------------------...

Önen, H. 2021. Herbolojinin Tarihi Gelişimi, 3. Bölüm. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (s. 28-75). Adana, DOI: : 10.13140/RG.2.2.16687.25768/1 -------------------------------------------------------------------------------------------------------------------------- Yabanc...

Önen, H. 2021. Yabancı Otlar ve Herboloji (Yabancı Ot Bilimi), 2. Bölüm. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (s. 8-27). Adana, DOI: 10.13140/RG.2.2.10113.99688 --------------------------------------------------------------------------------------------------------------------...

Önen, H. 2021. Yabancı Otların Sınıflandırılması, 4. Bölüm. “Herboloji (Yabancı Ot Bilimi): İlkeler, Kavramlar ve Uygulamalar / Weed Science: Theory and Practice” içinde (s. 76-114). Adana, DOI: 10.13140/RG.2.2.10952.85763 -------------------------------------------------------------------------------------------------------------------------------...

This study reports the first record of Ipomoea coccinea L. [(Convolvulaceae), red morning glory] from Turkey. The literature review revealed that this taxon has not been recorded yet for the flora of Turkey. The species was mainly observed on the embankments along the Ardeşen‐Çamlıhemşin road during 2016. It was again recorded during 2019 with a ce...

Önen H. 2014. Organik tarımda bitki koruma (herboloji). Organik tarım ders notları. Gaziosmanpaşa Üniversitesi Ziraat Fakültesi Bitki Koruma Bölümü, Tokat. DOI: 10.13140/RG.2.2.12870.29764 https://www.researchgate.net/publication/344572724_ORGANIK_TARIMDA_BITKI_KORUMA_HERBOLOJI ........................................................................

Common ragweed (Ambrosia artemisiifolia L.) is an allergenic invasive weed rapidly expanding its distribution range throughout Europe. Seed dormancy is among the most important seed adaptation traits, helping colonizing plants to avoid adverse environmental conditions. Furthermore, knowledge of seed dormancy enables to predict the seed germination...

Industrial hemp production areas in Turkey have been recently intended to increase, therefore intensive research and development activities are being conducted to achieve the goal. Introducing the hemp, which was removed from the agricultural crop rotation many years ago, into the crop rotation will bring new crop-pest interactions to the agenda. T...

Common ragweed (Ambrosia artemisiifolia L.) is an invasive species, and is currently spread in different habitats over several regions in Turkey. However, no information exists on the seed germination biology of Turkish populations. Therefore, the seed germination niche (upper and lower limits of environmental conditions for seed germination) was d...

Standardized tools are needed to identify and prioritize the most harmful non-native species (NNS). A plethora of assessment protocols have been developed to evaluate the current and potential impacts of non-native species, but consistency among them has received limited attention. To estimate the consistency across impact assessment protocols, 89...

This article presents new records of fungi and downy mildews in Turkey on different weeds of agrophytocoenosis. These records include Plectosphaerella alismatis (Oudem.) A.J.L. Phillips, Carlucci & M.L. Raimondo (on Alisma plantago-aquatica L.), Pyricularia grisea Sacc. (on Setaria viridis (L.) P. Beauv.), Phakopsora artemisiae Hirats. (on Artemisi...

To better manage invasive populations, it is vital to understand the environmental drivers underlying spatial variation in demographic performance of invasive individuals and populations. The invasive common ragweed, Ambrosia artemisiifolia, has severe adverse effects on agriculture and human health, due to its vast production of seeds and allergen...

Citrus is an important export commodity, mostly grown on Mediterranean and Aegean coasts of Turkey. Weeds are hidden foes impairing citrus productivity. Limited knowledge of weed distribution and factors affecting the distribution are among major hurdles in successful weed management. In this study, weed flora of citrus orchards and factors affecti...

Burcucumber (Sicyos angulatus L.) is a highly invasive vine that has become naturalized in the humid Black Sea region of Turkey, but previous to this study there was no information on the germination biology of this weed. The germination biology of three naturalized populations of burcucumber from the Black Sea region was studied in laboratory and...

Species distribution models (SDM) are increasingly being used at regional and global scales to predict the invasive species' distribution under prevailing and future climatic conditions. These models are mostly restricted to regional settings while predicting species distribution for a particular region. However, restricting SDMs to regional scales...

Two Solanaceae invasive plant species (Physalis angulata L. and P. philadelphica Lam. var. immaculata Waterfall) infest several arable crops and natural habitats in Southeastern Anatolia region, Turkey. However, almost no information is available regarding germination biology of both species. We performed several experiments to infer the efects o...

Niche distribution models accurately predict the potential distribution range of invasive plants into new habitats based on their climatic requirements in the native regions. However, these models usually ignore the marginal habitats which can limit the distribution of exotic plants. We therefore tested the seedling survival, growth and nutrient ac...

Maize (Zea mays L.) is widely cultivated in Black Sea and Marmara regions of Turkey. European Corn Borer (ECB) damages the maize crop in both regions. Recently, numerous invasive plant species have been observed in agricultural areas, abandoned lands and along roadsides of both regions. The objective of the current study was to determine whether...

Turkey has a long history of floristic research and hosts some 12000 plant species. However, there have been much less works concentrated on tracking the alien plant species in the country. A recent study has identified 340 alien taxa in the country, which is comparatively much less than rest of the Europe. New species are being identified for the...

Lentil (Lens culinaris Medik.) is among the oldest domesticated crops in the world and has an important role in human and animal nutrition. Lentil is widely grown in Southeastern Anatolia Region, Turkey. Broomrapes are the family of parasitic plants, which threaten the production of grain legumes globally. Several members of broomrapes infest the r...

Common ragweed (Ambrosia artemisiifolia L.) is a notorious invasive plants of the world which poses severe agricultural, economic and human health impacts. It is currently infesting different habitats such as agriculture, roadsides, abandoned lands in the country and suspected as a serious hazard to sunflower production and human health. Additional...

Plant invasion around the world is creating serious environmental, ecological and agricultural concerns. Mile-a-minute weed [Persicaria perfoliata (L.) H. Gross] is an invasive vine and colonizes open and warm areas, along the edges of woods, wetlands, stream banks, roadsides, and sometimes cultivated fields. Excessive Mile-a-minute weed invasion h...

Bu araştırmada, Tokat ili bağcılık yapısı ve üreticilerin yabancı otlarla mücadele konusundaki davranışlarını belirlemek amaçlanmıştır. Anket çalışması, Tokat Merkez, Erbaa, Niksar, Pazar, Turhal ve Zile ilçelerinde bağcılıkla uğraşan 100 üretici ile yüzyüze görüşülerek gerçekleştirilmiştir. Anket çalışmasında üreticilere, üretici profili, işletme...

Globalization have improved trade activities across the continents however, created several serious problems. Rapid spread and establishment of invasive alien species (IAS) through global trade are important issue being addressed globally. European Union, recently agreed to increase the number of IAS of concern. Turkey, on the other hand have made...

Bur cucumber (Sicyos angulatus L., SIYAN) is a troublesome invasive vine. Seeds of the plant possess a water-impermeable,hard seed coat exhibiting physical dormancy. Seed dormancy is employed by the invasive plants for persistence in soil seed bank, seedling recruitment and avoiding unfavorable environmental conditions. The seed dormancy differe...

Invasive plants are recognized for their impressive abilities to withstand adverse environmental conditions however, all invaders do not express the similar abilities. Therefore, survival, growth, nutrient uptake and fecundity of two co-occurring, invasive Physalis species were tested under water and salinity stresses, and different soil textures i...

Changing climatic conditions and curious nature of human beings lead to the extinction of many plant species annually. However, ever increasing population of globe demands for discovering new species and a considerable number of species are being discovered. Ruthless use of recently identified species for their edible, industrial and medicinal u...

Bur cucumber (Sicyos angulatus L., SIYAN) is a troublesome invasive vine. Seeds of the plant possess a water-impermeable,hard seed coat exhibiting physical dormancy. Seed dormancy is employed by the invasive plants for persistence in soil seed bank, seedling recruitment and avoiding unfavorable environmental conditions. The seed dormancy differe...

Polygonum and Rumex genera of Polygonaceae family contain numerous noxious weed species in agricultural habitats. The current study was aimed to determine the host preference of G.polygoni feeding on different weed species of Polygonum and Rumex genera by monitoring its biological characteristics. Adults of G.polygoni and weed species i.e., Polygon...

Field scale spatial variability of soil properties, crop quality parameters and yield are needed to evaluate the efficiency of management practices in crop production. The purpose of this study was to determine the magnitude of field variability in soil properties, corn (Zea mays L.) quality parameters and yield, and to characterize their spatial s...

Increased incidences of exotic plant invasion are being reported throughout the world in recent years. These plants compete with agricultural crops, reduce native biodiversity, alter nutrient cycles and incur heavy economic , ecological and environmental costs. The plant invasion studies are extremely limited in Turkey and almost no study has been...

Intensive trade, transport and travel activities across different geographic regions are prime source of introduction and spread of alien plant species. The role of roadsides in the long distance transport and spread of alien plants has been well explored whereas, railways are less considered in this context. Therefore, current survey was aimed to...

Invasive plants undergo adaptive and evolutionary changes in non-native habitats for a successful establishment. Increased incidences of two tropical ground cherry species (Physalis angulata L. and Physalis philadelphica Lam. var. immaculate Waterfall) have been reported in the irrigated field crops of semi-arid regions in Turkey. As both weeds are...

Common ragweed (Ambrosia artemisiifolia L.) is noxious invader causing severe pollen allergies. Ragweed has extended its range over a considerable portion of the Turkey after its first record in 1998. Ragweed infestation in agricultural areas (particularly in sunflower fields) has recently been reported. The plant has become a detrimental threat to...

The biological invasions on global and regional scales present severe ecological, agricultural and health concerns resulting in considerable economic losses. However, absence of the reliable data on the occurrence of invasive species results in great challenges for their management. Moreover, lack of reporting the first occurrence of exotic species...

Toprak özellikleri, iklim, kültür bitkisi, uygulanan kültürel iĢlemler ve yabancı ot kontrolü vb faktörlerin etkisiyle yabancı otlar heterojen bir dağılım gösterirler. Bu nedenle baĢarı ile idare edilebilmeleri için öncelikle bölgeye hatta bahçeye özel yabancı otlanma durumunun bilinmesi gerekir. Bu çalıĢmada antepfıstığı bahçelerinde sorun olan ya...

Rapid increase and associated negative impacts of invasive alien plants (IAPs) are being increasingly observed around the world. Chemicals are mostly used to manage these plants however, labor requirements, high cost and environmental concerns have necessitated the development of alternative management options. The environmentally safe management o...

Common ragweed (Ambrosia artemisiifolia L.) is a noxious invader, spread almost over whole Europe. Although extensive research on the biology, population dynamics, management options, pollen and seed production etc. have been conducted in other parts of world, limited literature is available for Turkey. The plant was firstly reported in 1998, and r...

Technological advancements have shortened the continent boundaries in the recent era of globalization. Rising trend of internet trade (E-commerce) has opened a new pathway for the transport and introduction of invasive plants to new geographic zones in the world. This study was conducted to assess the role of internet trade as a pathway on plant in...

Soil variability, heterogeneity in soil seed bank and/or agricultural practices lead to patchy distribution of weeds within a region. This study was conducted to determine the problematic weed species and their densities with respect to soil properties in the crop production areas of Çumra plain in Konya province. The study area was divided into 1×...

Ragweed (Ambrosia artemisiifolia L.) originating from North America is a notorious invader, suspected as a potential threat of crop production and human health in Turkey. It produces enormous amounts of allergenic pollens causing seasonal allergies in exposed human populations. Successful management of invasive plants depends upon the better unders...

Significant differences can be observed among weed species infesting agricultural lands in the same region depending upon the land management and variability in soil characteristics. This study was conducted in Kazova plain that contains alluvial lands formed from the sediments deposited by YeĢilırmak river and colluvial lands formed over limestone...

Edaphic factors are the key determinant of plant species abundance at regional scales due to the intimacy of plant-soil interactions. The current survey was conducted in 2013 to determine the role of edaphic factors in shaping weed communities of northern Amasya Province. Study areas was divided into 500×500 m square grids and the surveys were cond...

The distribution range of invasive plants provide an overview of the invasion success at a given time and space. However, current distribution data are generally scarce at regional and landscape scales. Prediction of potential distribution ranges of invasive plants through niche-based models using available distribution data, climate requirements o...

Oriental false wheatgrass (Eremopyrum orientale (L.) Jaubert & Spach) is a grass weed infesting cereal and widely distributed in marginal areas of Turkey including Niğde Province having problems of salinity and boron toxicity. Growth behavior of the plant was observed in greenhouse experiments under salinity (NaCl), Boron (B) and Cadmium (Cd) stres...

The increasing number of Invasive Alien Species (IAS) pose sever threats to natural ecosystems, agricultural lands, biodiversity and human health throughout the world. Early Detection, Monitoring and Information Systems (EDMIS) play a key role in reporting the new species at regional scales. This study deals with the development of monitoring and i...

This study was conducted in 2013 vegetation period to determine the weed species distribution and their density interfering with different agricultural crops grown in Suluova and Merzifon plains of Amasya province. Study areas were divided into 500×500 m square grids and 137 (Suluova) and 76 (Merzifon) sites were surveyed at almost on the corners o...

Rapid increase in the colonization of non-native plants and associated threats have necessitated the development of alternative, eco-friendly management options. Common ragweed (Ambrosia artemisiifolia L.) is a North-American invasive alien plant established in in different regions of Turkey and started to create economic, ecological and health con...

Invasive plants can exert negative effects on native plant communities and biodiversity. Cutleaf groundcherry (Physalis angulata L.) and Mexican groundcherry (Physalis philadelphica Lam. var. immaculata Waterfall) are two annual invasive plants currently invading agricultural and natural habitats in South and South-eastern Anatolia regions of Turke...

This study was aimed at determining the problems faced in weed management of fruit nurseries, knowledge of nursery owners regarding weed management and solutions for weed management in Tokat province. Face-to-face survey was completed with 40 persons in the study region. Survey was conducted in the Merkez, Turhal, Pazar, Erbaa and Niksar districts...

Weeds cause significant yield and quality losses, host diseases and pests and increase labor costs, therefore considered among the most important limiting factors in fruit nurseries. This work was aimed to determine the prevalence and densities of weeds in Tokat Province, an important fruit and nursery production center of Turkey. Sixty three weed...

Weeds in the fruit seedling and sapling growing areas of Tokat province are controlled through hoeing and herbicide application. Errors in herbicide application affect the seedlings therefore hoeing is generally preferred for weed control in the region. The number of hoeing to manage weeds in nurseries vary from 7 to 12. Therefore, weed control an...

Antepfıstığı, Gaziantep ilinde meyve üretimi bakımından ilk sırada yer almaktadır. Antepfıstığı üretimi sürecinde karĢılaĢılan sorunlardan birisi de yabancı otlardır. Ancak, antepfıstığı bahçelerinde sorun olan yabancı otlara iliĢkin sınırlı sayıda çalıĢma bulunmaktadır. Bu çerçeveden Gaziantep ili ve çevresinde antepfıstığı bahçelerinde sorun olan...

Common ragweed is a troublesome allergenic invader and noxious weed of several crops. Despite extensive research to understand the factors affecting its invasion, the role of environmental stresses and soil types on survival and growth is poorly understood. The objective of this study was to determine the effects of drought, salinity, and soil type...

Common ragweed invasion poses serious risks to human health, biodiversity and agricultural production throughout the world. Although ragweed has an enormous potential to expand its range in Turkey, studies on ragweed have only concentrated on the Black Sea region. An exploratory survey was conducted to observe the level of ragweed occurrence on the...

This study was aimed at detection of virusin bur cucumber (Sicyos angulatus L.) collected from Black Sea region. Double antibody sandwich enzyme-linked immuno sorbent assay (DAS-ELISA) was used to test the 11 leaf samples for the presence of following viruses; Cucumber Mosaic Virus (CMV), Tobacco Mosaic Virus (TMV), Tomato Mosaic Virus (ToMV), Wate...

This study was aimed at detection of virusin bur cucumber (Sicyos angulatus L.) collected from Black Sea region. Double antibody sandwich enzyme-linked immuno sorbent assay (DAS-ELISA) was used to test the 11 leaf samples for the presence of following viruses; Cucumber Mosaic Virus (CMV), Tobacco Mosaic Virus (TMV), Tomato Mosaic Virus (ToMV), Wate...

Toprağın fonksiyon gösterme kapasitesi olarak bilinen toprağın kalitesinin tanımı ve önemini açıklayan bir bilgi notudur.

Salinity and high boron concentration soils are important problems constrain the agricultural productionin arid and semi-arid regions of the world. Considering the significant high spatial variation of salinityand boron concentration in the use of agricultural production and improvement of the problems isrequired in terms of time, labor and cost ef...

Dünyanın özellikle kurak ve yarı-kurak bölgelerinde tuzluluk ve yüksek bor içeriği tarımsal üretimi sınırlandıran önemli sorunlardır. Her iki sorunda arazi içerisinde önemli düzeyde yüksek değişkenliğe sahip olduğundan, toprakların üretimde kullanımları ve iyileştirilmelerinde bu değişkenliğin dikkate alınması zaman, iş gücü ve maliyet açısından zo...

The current works on invasive plants are not sufficient to cope with the pace of biological invasions in Turkey. Rapid and intense invasion of IAPs in different habitats due to the coupled effects of climate change and lack of interest is expected in future resulting in severe ecological and economic losses. Some of the endemic endangered species a...

Different living organisms having invasive characteristics pose severe threats to ecosystems, biodiversity, environment, human and animal health and economy. Moreover, biological invasions are being considered as the greatest threat to biodiversity after climate change and habitat defragmentation. Among invasive species, plants are of prime importa...

Sicyos angulatus L. Cucurbitaceae (Kabakgiller) familyasına dâhil sarılıcı/tırmanıcı bir sarmaşıktır. Bitki otsu formda ve tek yıllık olup yılın soğuk aylarında tamamen donarak ölmektedir. Üremesi tohumladır. S. angulatus tam veya kısmen güneş alan ve nemli koşulları tercih etmektedir. Bitki tipik olarak yazları ılıman ya da sıcak ve yağışlı bölgel...

Bidens frondosa L. (Devil's beggartick) is an annual species generally pioneering diverse range of habitats, agricultural and non-agricultural areas. The plant was initially reported in 2007 from North Eastern Anatolia Region of Turkey. After the first record; no efforts have been made to map the current distribution of the plant in the country. Th...

İstilacı yabancı otlar, gelişme ve üremeleri üzerinde herhangi bir çevre baskısının bulunmayışı nedeniyle, yeni taşındıkları bölgelere yerleşerek kısa süre içerisinde salgın oluşturacak düzeye ulaşmaktadırlar. Yayılışları genellikle tarımsal alanlarla sınırlı kalmayıp yol kenarları, boş alanlar, çayır mera ve sulak alanları istila etmektedirler. Ya...

Phytolaca americana (Pokeweed, Phytolaccacea) is a perennial plant of Pokeweed family reproducing by seeds and can also easily grow by suckers. P. americana grows to 1 to 3 meters high having steep and thick stems. The plant has an extremely fast growing and spreading root. P. americana causes significant losses to agricultural areas in many countr...

Commelina communis L. (Asiatic Day flower; Commelinaceae) is an annual herbaceous species. C. communis prefers humid areas receiving partial sunlight, light textured (sandy or loam) and nutrient rich soils for its growth and development. Nonetheless, it can successfully adapt to a wide range of ecological and climatic conditions. The plant was firs...

The increasing number of invasive plants throughout the world has been creating serious ecological and economical concerns. The knowledge of biological and ecological requirements of these plants is the key factor for their successful management. Abiotic stresses such as drought and salinity are the most important factors limiting the invasion of p...