Györgyi Biró

• Master of Science
• University of Debrecen

This study investigates the impact of NPK fertilizer levels on arbuscular mycorrhizal fungal (AMF) colonization in maize roots under irrigated and non-irrigated conditions. The objective is to optimize fertilizer application to enhance AMF colonization and maize growth. A split-plot experimental design with two NPK fertilizer levels and control is...

A közönséges vagy európai mogyoró (Corylus avellana) Magyarországon őshonos cserje. Egyik jól ismert betegsége az a lisztharmat, amely rendszerint a levelek fonákán fejleszti telepe­it és az új fertőzéseket eredményező, egysejtű konídium-tömegét. Az áttelelésre készülve a gomba apró, barna-fekete színű, gömbszerű, zárt termőtesteket képez. A közelm...

Chemical plant protection began to develop rapidly after the II. World War and became a defining factor of agriculture. However, it soon became clear that these substances also have very serious dangers. Under its influence, the most dangerous substances began to be withdrawn. However, their complete withdrawal does not seem to be professionally ju...

Sclerotinia sclerotiorum, which causes white mold, is a widespread pathogen. In 2020, a new host plant of this fungus, the wa tercress (Nasturtium officinale) was identified in Hungary in an aquaponic system. During the cultivation of watercress S. sclerotiorum was detected on the plant, the fungus caused a 30% yield loss. Fungicides should not be...

Macrophomina phaseolina and Sclerotinia sclerotiorum are two significant fungal pathogens of sunflower. M. phaseolina causes charcoal rot and ashy stem blight in several important crop species. Sclerotinia sclerotiorum causes white mold disease which can occur as middle stalk rot, head rot and premature plant death. Due to the wide host range of th...

Watercress (Nasturtium officinale) is an aquatic dicotyledonous vegetable belonging to Brassicaceae (Aiton 1812). Watercress was grown in an aquaponic system on fired clay ball medium at the Aquaponic Research Station of the University of Debrecen, in the city of Debrecen (Hungary). During January 2020, 3-month-old plants showed symptoms in aquapon...

A fehérpenészes rothadást okozó Sclerotinia sclerotiorum gomba világszerte széles körben elterjedt kórokozó. Magyarországon 2020-ban egy új gazdanövénye került beazonosításra, a vízitorma (Nasturtium officinale). A vízitorma akvapóniás rendszerben történő termesztése során detektáltak S. sclerotiorum gombát a növényen, ami 30%-os termésveszteséget...

2021 novemberében Keszthely térségében: Cserszegtomaj, Keszthely, Ajka és Csabrendek helyiségekben lisztharmattal fertőzött európai mogyoró (Corylus avellana) leveleket gyűjtöttünk be. A morfológiai tulajdonságai alapján az Erysiphe genusba (Erysiphe sect. Microsphaera) tartozónak találtuk a kórokozót. Ez a faj a magyar szakirodalomban mogyoróról e...

Plant diseases caused by phytoplasmas have increasing importance worldwide. „Candidatus Phytoplasma prunorum” (formerly: European stone fruit yellows phytoplasma; ESFY) has now become the biggest problem in apricot growing in many European countries. In the early 2000s, symptoms of the disease began to be experienced en masse by apricot growers in...

The main goal of this research was to investigate the effects of corn smut (Ustilago maydis DC. Corda) infection on the morphological (plant height, and stem diameter), and biochemical parameters of Zea mays L. plants. The biochemical parameters included changes in the relative chlorophyll, malondialdehyde (MDA), and photosynthesis pigments’ conten...

A hazai szójatermesztés jelentősége a felhasználás és takarmányfehérje szempontjából meghatározó, amelyet az is befolyásol, hogy állattenyésztésünk a fajösszetétel tekintetében (sertés és baromfi) ugyancsak a szójára utalt. A világ szója termésének 70%-a GM növény, az USA-ban ez 50%, Brazíliában és Argentínában 16-16%. Magyarország 4-600 ezer t/év...

One of the most important conditions of high quality fruit production is the early detection of phytopathologycal infections. Themost dangerous disease of peach (Prunus persica) is the Taphrina deformans, which causes serious damages mainly in the years where theweather condition is cool and wet. In this study, healthy and naturally diseased leaves...

Fusarium graminearum is one of the most significant arable pathogen in Hungary, and various types of trichothecene mycotoxins (mostly DON, deoxynivalenol) are detected most commonly in cereals (Biró et al., 2011). Fusarium infection and mycotoxin production could not be eliminated, and infected maize by Fusarium sp. cannot be exploited as food, see...

By guess, annual volume of milk whey is 185–190 million tons and this volume probably will increase next years. Whey has significant biochemical oxygen demand due to its high organic matter content so whey as sewage is one of the most pollutant by-products in the food industry. Apart from environmental pollution, benefit of several whey constituent...

In Hungary the renewable energy utilization is planned to achieve 13% by 2020. Biogas production is one of the fields with the largest energy potential. Achieving high efficiency during continuous production despite the mixed and variable composition of input materials is the most common problem which the newly built biogas plants using agricultura...

The Fusarium fungi hazards the grain quality of cereals, therefore significantly affects their utilization as animal feed or consumable product. The Fusarium can decrease the quality of wheat in different ways: decreases the germination capability, causes visible discoloration, mould may appear, reduces the dry material and nutrient content of the...

Last year intense rainfalls and moisture conditions were beneficial for the Fusarium sp. in Hungary. Fusarium strains decrease cereal quality (for example maize), furthermore may cause yield loss. Due to the toxin production, the fungi have a dangerous animal and human pathogen effect (Placinta et al., 1999).The effects of the Fusarium infection an...

The utilisation of composts depends on their maturity and stability. A great part of the determination methods can be set in laboratory and needs complicated sample preparation. The aim of this paper was introduce an effective and fast method which based on the different reflectance of the different organic compounds.During our research we examined...

A Fusarium penészgombák veszélyeztetik a gabonafélék szemtermésének minőségét, ez jelentősen befolyásolja élelmezési és takarmányozási célra, valamint vetőmagként való felhasználásukat. Ezek a penészgombák többféle módon ronthatják a gabona minőségét. Csökkentik a csírázóképességet, szemmel látható elszíneződést, penészedést okoznak. Hatásukra csök...

In Hungary the renewable energy utilisation is planned to achieve 13% by 2020. Biogas production is one of the fields with the largest energy potential. Achieving high efficiency during continuous production despite the mixed and variable composition of input materials is the most common problem which the newly built biogas plants using agricultura...

The research takes place in a biogas plant based on mixed agricultural composition in Nyírbátor. The problem is the seasonal, periodical and optional changes of the input materials. The aim of the research is to apply a relative new FOS/TAC method as process control in the biogas plant. Input materials determine the composition of the examined subs...

In 2008 Hungarian government approved the Renewable Energy Strategy which targets the increase of biogas production to 6,1 % by 2020. Biogas production rate was only 0,8 % in 2006. Hungarian agricultural biogas is based mainly on agricultural waste, by-products and residues. The recovery of digested biogas endproduct for agriculture conserves and r...

In Hungary the mycotoxin is a great problem, because there are many natural toxins in wheat and maize. These cereals can be found onconsiderable proportion of the country’s sowing area, and they are deterministic food for the population. The direct human and animalutilization of the contaminated cereals mean a serious risk in the food chain. In Hun...