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Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Mala-Maria STAVRESCU-BEDIVAN, Emilia Brîndușa SĂNDULESCU, Cătălin Mihai CROITORU, Roxana Maria MADJAR, Oana-Alina BOIU-SICUIA, Gina VASILE SCĂEȚEANU

In the protected area Natural Park Comana located in Giurgiu County, a survey was carried out between April and June 2021, in order to analyze the water quality related to the aquatic diversity. In the samples collected from Comana Pond, several representatives belonging to four kingdoms were identified: Bacteria (blue-green algae, bacteria), Protista (single-celled and colonial green algae, diatoms, euglenoid flagellates, ciliates), Plantae (filamentous green algae, aquatic freshwater plants) and Animalia (European perch, rudd, pike, Prussian carp). Plankton organisms Achromatium sp., Merismopedia sp., Spirilla sp., Spirulina sp. (bacteria); Gomphonema sp., Melosira sp., Paramecium caudatum (chromists); Desmococcus sp, Ulothrix sp., Volvox sp. (chlorophyte green algae) and also the parasitic nematode Philometroides sanguineus were mentioned for the first time in the Comana Pond. A biometric analysis was performed on a total number of 91 Carassius gibelio individuals and negative pattern of growth and also a fish well-being were postulated. The parasite P. sanguineus was detected in the caudal fin of two Prussian carp individuals. Water samples were collected from 7 sampling points (SP) and were subjected to physico-chemical analysis. It were determined the following parameters: pH, electrical conductivity (EC), total hardness (TH), chemical oxygen demand (COD), phosphate phosphorus (P-PO43-), nitrate nitrogen (N-NO3-), nitrite nitrogen (N-NO2-). Generally, it was concluded that Comana Pond is a dynamic ecosystem that meets favorable conditions for the growth and development of aquatic organisms.

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APHICIDAL AND REPELLENT ACTIVITIES OF PLANT EXTRACTS FROM Hertia cheirifolia L. AND Marrubium deserti de Noé

Written by Farouk AMAMRI, Salim LEBBAL, Toufik BENHIZIA, Azzeddine ZERAIB
Pages 9 to 13

[Abstract][Full article][Citation]


FIRST DESCRIPTION OF Cypripedium AND Cypripedium calceolus var. citrina B. HERGT IN ROMANIA: MORPHOLOGY, POLLINATION AND CONSERVATION STATUS

Written by Nora Eugenia D.G. ANGHELESCU, Hajnalka KERTÉSZ, Lori BALOGH, Mihaela BALOGH, Hajnal PATAKI, Mihaela Ioana GEORGESCU, Sorina Aurelia PETRA, Florin TOMA
Pages 14 to 28

[Abstract][Full article][Citation]

D.G. ANGHELESCU N.E., KERTESZ H., BALOGH L., BALOGH M., PATAKI H., GEORGESCU M.I., PETRA S.A., TOMA F. 2021, FIRST DESCRIPTION OF Cypripedium AND Cypripedium calceolus var. citrina B. HERGT IN ROMANIA: MORPHOLOGY, POLLINATION AND CONSERVATION STATUS . AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 14-28.


STUDY ON DESIGNING MUNICIPAL TECHNICAL NETWORK MAPS FOR AN AGRICULTURAL COMPANY WITH THE HELP OF A GIS

Written by Jenica CĂLINA, Aurel CĂLINA
Pages 29 to 38

[Abstract][Full article][Citation]

CALINA J., CALINA A. 2021, STUDY ON DESIGNING MUNICIPAL TECHNICAL NETWORK MAPS FOR AN AGRICULTURAL COMPANY WITH THE HELP OF A GIS. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 29-38.


IN VITRO LIQUID CULTURE OF Stevia rebaudiana Bert. FOR MASS PROPAGATION

Written by Corina CĂTANĂ, Paula BOBOC (OROS)
Pages 39 to 46

[Abstract][Full article][Citation]

CATANA C., BOBOC (OROS) P. 2021, IN VITRO LIQUID CULTURE OF Stevia rebaudiana Bert. FOR MASS PROPAGATION . AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 39-46.


OPTIMIZATION OF ULTRASOUND-ASSISTED EXTRACTION OF POLYPHENOLS FROM HONEYSUCKLE (Lonicera caprifolium)

Written by Luminița DIMITRIU, Daniel PREDA, Diana CONSTANTINESCU-ARUXANDEI, Florin OANCEA, Narcisa BĂBEANU
Pages 47 to 55

[Abstract][Full article][Citation]

DIMITRIU L., PREDA D., CONSTANTINESCU-ARUXANDEI D., OANCEA F., BABEANU N. 2021, OPTIMIZATION OF ULTRASOUND-ASSISTED EXTRACTION OF POLYPHENOLS FROM HONEYSUCKLE (Lonicera caprifolium). AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 47-55.


EFFECTS OF LEAD ACCUMULATION ON PHYSIOLOGICAL PARAMETERS AND NUTRITIONAL ELEMENTS IN SAFFLOWER (Carthamus tinctorius L.) SEEDLINGS

Written by Muhittin DOGAN, Serap SAHIN YIGIT, Gulcan CINAR
Pages 56 to 62

[Abstract][Full article][Citation]

DOGAN M., SAHIN YIGIT S., CINAR G. 2021, EFFECTS OF LEAD ACCUMULATION ON PHYSIOLOGICAL PARAMETERS AND NUTRITIONAL ELEMENTS IN SAFFLOWER (Carthamus tinctorius L.) SEEDLINGS. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 56-62.


THE USE OF UAVS: DEVELOPMENT, PERSPECTIVES AND APPLICATION

Written by Olha DOROSH, Yevhen BUTENKO, Hryhorii KOLISNYK, Andriy DOROSH, Iryna KUPRIIANCHYK
Pages 63 to 71

[Abstract][Full article][Citation]

DOROSH O., BUTENKO Y., KOLISNYK H., DOROSH A., KUPRIIANCHYK I. 2021, THE USE OF UAVS: DEVELOPMENT, PERSPECTIVES AND APPLICATION. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 63-71.


SEROPREVALENCE OF Neospora caninum AND Toxoplasma gondii INFECTIONS IN A DAIRY CATTLE FARM FROM SOUTH-EAST OF ROMANIA

Written by Vasilica GOTU, Daniela POREA, Mădălina SITEAVU, Mariana IONIȚĂ, Ioan Liviu MITREA
Pages 72 to 76

[Abstract][Full article][Citation]

GOTU V., POREA D., SITEAVU M., IONITA M., MITREA I.L. 2021, SEROPREVALENCE OF Neospora caninum AND Toxoplasma gondii INFECTIONS IN A DAIRY CATTLE FARM FROM SOUTH-EAST OF ROMANIA. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 72-76.


CONTRIBUTIONS REGARDING THE STUDY OF GENOTYPE-ENVIRONMENT RELATIONSHIP TO SOME CYCLIC WHEAT COMBINATIONS

Written by Paula IANCU, Marin SOARE, Ovidiu PĂNIȚĂ
Pages 77 to 82

[Abstract][Full article][Citation]

IANCU P., SOARE M., PANITA O. 2021, CONTRIBUTIONS REGARDING THE STUDY OF GENOTYPE-ENVIRONMENT RELATIONSHIP TO SOME CYCLIC WHEAT COMBINATIONS . AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 77-82.


EXPERIENCE OF LAND USE DEVELOPMENT PLANNING AT THE LOCAL (MUNICIPAL) LEVEL IN THE EUROPEAN UNION

Written by Natallia KAPINOS, Viktor GONCHAROV, Olena RYBINA, Nataliia PROKOPENKO
Pages 83 to 91

[Abstract][Full article][Citation]

KAPINOS N., GONCHAROV V., RYBINA O., PROKOPENKO N. 2021, EXPERIENCE OF LAND USE DEVELOPMENT PLANNING AT THE LOCAL (MUNICIPAL) LEVEL IN THE EUROPEAN UNION. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 83-91.


INTERIOR PROFILE OF YOUNG PIGS OF DIFFERENT GENOTYPES AND THE USE OF ITS COMPONENTS FOR EARLY PREDICTION OF QUANTITATIVE CHARACTERS

Written by Viktor KHALAK, Anna HORCHANOK, Oksana KUZMENKO, Lyudmila LYTVYSCHENKO, Nаtaliia PRYSIAZHNIUK, Alexander BORDUN
Pages 92 to 98

[Abstract][Full article][Citation]

KHALAK V., HORCHANOK A., KUZMENKO O., LYTVYSCHENKO L., PRYSIAZHNIUK N., BORDUN A. 2021, INTERIOR PROFILE OF YOUNG PIGS OF DIFFERENT GENOTYPES AND THE USE OF ITS COMPONENTS FOR EARLY PREDICTION OF QUANTITATIVE CHARACTERS . AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 92-98.


CONTRIBUTION TO THE STUDY OF THE PHYSICO-CHEMICAL QUALITY OF THE SURFACE WATER OF THE RIVER SEYBOUSE

Written by Mazouz KHEROUF, Ammar MAOUI
Pages 99 to 105

[Abstract][Full article][Citation]

KHEROUF M., MAOUI A. 2021, CONTRIBUTION TO THE STUDY OF THE PHYSICO-CHEMICAL QUALITY OF THE SURFACE WATER OF THE RIVER SEYBOUSE. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 99-105.


GENOTYPE - ENVIRONMENT INTERACTION IN QUANTITATIVE TRAITS FORMATION IN WHITE LUPINE (Lupinus albus L.) ACCESSIONS

Written by Valentin KOSEV, Natalia GEORGIEVA
Pages 106 to 115

[Abstract][Full article][Citation]

KOSEV V., GEORGIEVA N. 2021, GENOTYPE - ENVIRONMENT INTERACTION IN QUANTITATIVE TRAITS FORMATION IN WHITE LUPINE (Lupinus albus L.) ACCESSIONS. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 106-115.


FUNCTIONAL BIOPRODUCT "FucoSTEM" - EVALUATION OF THE PRODUCT ON ORGANOLEPTIC, PHYSICOCHEMICAL, BIOCHEMICAL AND MICROBIOLOGICAL INDICATORS

Written by Kamelia LOGINOVSKA, Nikolay SOLAKOV, Maria DONEVA, Alexandar VALCHKOV
Pages 116 to 121

[Abstract][Full article][Citation]

LOGINOVSKA K., SOLAKOV N., DONEVA M., VALCHKOV A. 2021, FUNCTIONAL BIOPRODUCT "FucoSTEM" - EVALUATION OF THE PRODUCT ON ORGANOLEPTIC, PHYSICOCHEMICAL, BIOCHEMICAL AND MICROBIOLOGICAL INDICATORS . AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 116-121.


ANALYSIS OF THE SPECIES COMPOSITION OF PREVAILING PESTS OF Araliaceae JUSS. IN KYIV, UKRAINE

Written by Anastasiya MOROZKO, Olena KOLESNICHENKO, Natalia PUZRINA
Pages 122 to 128

[Abstract][Full article][Citation]

MOROZKO A., KOLESNICHENKO O., PUZRINA N. 2021, ANALYSIS OF THE SPECIES COMPOSITION OF PREVAILING PESTS OF Araliaceae JUSS. IN KYIV, UKRAINE. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 122-128.


Lindernia dubia (L.) PENNELL: A NEW INVASIVE IN THE ROMANIAN BANAT

Written by Alina NEACȘU, Ilinca IMBREA, Alina LAȚO, Gicu-Gabriel ARSENE
Pages 129 to 135

[Abstract][Full article][Citation]

NEACSU A., IMBREA I., LATO A., ARSENE G.G. 2021, Lindernia dubia (L.) PENNELL: A NEW INVASIVE IN THE ROMANIAN BANAT. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 129-135.


INCREASING THE IMMUNIZING VALUE OF A Clostridium septicum STRAIN

Written by Elena NEGRU, Horia DINU, Anca BULGARU, Dragoş LUPU, Mihai DANEŞ, Maria Rodica GURĂU, Doina DANEŞ
Pages 136 to 141

[Abstract][Full article][Citation]

NEGRU E., DINU H., BULGARU A., LUPU D., DANES M., GURAU M.R., DANES D. 2021, INCREASING THE IMMUNIZING VALUE OF A Clostridium septicum STRAIN. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 136-141.


HYDRODYNAMIC OBSERVATIONS ON MICROPLASTIC ABUNDANCES AND MORPHOLOGIES IN THE DANUBE DELTA, ROMANIA

Written by Iulian POJAR, Laura TIRON DUŢU, Cornel Ioan POP, Florin DUŢU
Pages 142 to 149

[Abstract][Full article][Citation]

POJAR I., TIRON DUTU L., POP C.I., DUTU F. 2021, HYDRODYNAMIC OBSERVATIONS ON MICROPLASTIC ABUNDANCES AND MORPHOLOGIES IN THE DANUBE DELTA, ROMANIA . AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 142-149.


THE USE OF DAIRY COWS OF FRENCH BREEDING IN THE CONDITIONS OF UKRAINE

Written by Tetiana POLISHCHUK, Elena KARATIEIEVA, Vladyslava BONDARENKO, Inna DATSUK
Pages 150 to 159

[Abstract][Full article][Citation]

POLISHCHUK T., KARATIEIEVA E., BONDARENKO V., DATSUK I. 2021, THE USE OF DAIRY COWS OF FRENCH BREEDING IN THE CONDITIONS OF UKRAINE. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 150-159.


VARIATION OF PHOTOSYNTHETIC PIGMENTS AND Chl/Car RATIO IN WHEAT IN RELATION TO FERTILIZATION RATE

Written by Florin SALA
Pages 160 to 169

[Abstract][Full article][Citation]

SALA F. 2021, VARIATION OF PHOTOSYNTHETIC PIGMENTS AND Chl/Car RATIO IN WHEAT IN RELATION TO FERTILIZATION RATE. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 160-169.


THE WATER FOOTPRINT IN CONTEXT OF CIRCULAR ECONOMY

Written by Mirela Alina SANDU, Ana VÎRSTA
Pages 170 to 177

[Abstract][Full article][Citation]

SANDU M.A., VIRSTA A. 2021, THE WATER FOOTPRINT IN CONTEXT OF CIRCULAR ECONOMY. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 170-177.


A PRELIMINARY EVALUATION OF WATER QUALITY RELATED TO AQUATIC ORGANISMS IN COMANA POND

Written by Mala-Maria STAVRESCU-BEDIVAN, Emilia Brîndușa SĂNDULESCU, Cătălin Mihai CROITORU, Roxana Maria MADJAR, Oana-Alina BOIU-SICUIA, Gina VASILE SCĂEȚEANU
Pages 178 to 188

[Abstract][Full article][Citation]

STAVRESCU-BEDIVAN M.M., SANDULESCU E.B., CROITORU C.M., MADJAR R.M., BOIU-SICUIA O.A., VASILE SCAETEANU G. 2021, A PRELIMINARY EVALUATION OF WATER QUALITY RELATED TO AQUATIC ORGANISMS IN COMANA POND. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 178-188.


POSTBIOTICS: A SOLUTION TO PROTECT TROPICAL FRUITS TOWARDS POSTHARVEST ADULTERATION

Written by Gabriela Nicoleta TENEA
Pages 189 to 196

[Abstract][Full article][Citation]

TENEA G.N. 2021, POSTBIOTICS: A SOLUTION TO PROTECT TROPICAL FRUITS TOWARDS POSTHARVEST ADULTERATION. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 189-196.


CONTROL OF WEEDS IN AGROPHYTOCENOSIS OF WINTER WHEAT DEPENDING ON SOIL TREATMENT AND FERTILIZATION SYSTEM

Written by Oleksiy TSYUK, Mykola MYROSHNYCHNKO, Yaroslaw TSVEY, Viktoriia MELNYK
Pages 197 to 202

[Abstract][Full article][Citation]

TSYUK O., MYROSHNYCHNKO M., TSVEY Y., MELNYK V. 2021, CONTROL OF WEEDS IN AGROPHYTOCENOSIS OF WINTER WHEAT DEPENDING ON SOIL TREATMENT AND FERTILIZATION SYSTEM. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 197-202.


CORRELATION OF EFFECTS OF THE GENERAL COMBINATION ABILITY AND THE SIGN OF THE DURATION OF THE SPRING-HILLING PERIOD IN SPRING BARLEY VARIETIES

Written by Volodymyr VASCHENKO, Oleksandra SHEVCHENKO, Aleksandr VINYUKOV, Olga BONDAREVA
Pages 203 to 208

[Abstract][Full article][Citation]

VASCHENKO V., SHEVCHENKO O., VINYUKOV A., BONDAREVA O. 2021, CORRELATION OF EFFECTS OF THE GENERAL COMBINATION ABILITY AND THE SIGN OF THE DURATION OF THE SPRING-HILLING PERIOD IN SPRING BARLEY VARIETIES. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 203-208.


EFFECT OF BIOGAS DIGESTATE ON GROWTH AND SOME POTENTIAL TOXIC ELEMENT CONCENTRATIONS OF WHEAT

Written by Cennet YAYLACI, İbrahim ERDAL
Pages 209 to 217

[Abstract][Full article][Citation]

YAYLACI C., ERDAL I. 2021, EFFECT OF BIOGAS DIGESTATE ON GROWTH AND SOME POTENTIAL TOXIC ELEMENT CONCENTRATIONS OF WHEAT. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 209-217.


TREE SPECIES DIVERSITY IN TWO SMALL CITIES OF KYIV REGION, UKRAINE

Written by Olha ZIBTSEVA
Pages 218 to 227

[Abstract][Full article][Citation]

ZIBTSEVA O. 2021, TREE SPECIES DIVERSITY IN TWO SMALL CITIES OF KYIV REGION, UKRAINE. AgroLife Scientific Journal, Volume 10, Number 2, ISSN 2285-5718, 218-227.


Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Anastasiya MOROZKO, Olena KOLESNICHENKO, Natalia PUZRINA

For the first time in Kyiv, Ukraine, the insect pest complex is studied of six open-ground woody plants of Araliaceae Juss. (Eleutherococcus senticosus (Rupr. et Maxim.) Maxim., Eleutherococcus sessiliflorus (Rupr. & Maxim.) S. Y. Hu., Hedera helix L., Aralia cordata Thunb., Aralia elata (Miq.) Seem., Kalopanax septemlobus (Thunb.) Koizd.). We monitored collections of the three botanical gardens in the city, and qualitatively and quantitatively analyzed the diversity of pests. Five insect species were found that damaged the vegetative and generative organs of plants over the vegetative season: Sciaphobus squalidus Gyll., Cteniopus flavus Scop., Aphis fabae Scop., Cetonia aurata L., Pulvinaria Targ. Four different trophic groups of insects damaged the aboveground plant parts, causing injuries to the assimilation apparatus, young shoots, buds, and generative organs, respectively. The phytophages and their impact on the plants varied depending on the species, aggressive behavior, and the plants’ reactions to injury.

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Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Farouk AMAMRI, Salim LEBBAL, Toufik BENHIZIA, Azzeddine ZERAIB

The black bean aphid Aphis fabae constitutes a dangerous pest. The use of pesticides provokes undesirable effect on the environment and the human health. Thus, the research for methods with low negative secondary effect becomes very important. The purpose of this study is the screening of the aphicidal activity of extracts from Marrubium deserti and Hertia cheirifolia. Moreover, the effect of the same treatments was tested on the orientation of A. fabae.
Through our study, ANOVA revealed significant differences between the studied essential oils. Those of H. cheirifolia with a concentration of 10000 ppm were the most effective with 96.67% of corrected mortality rate after 6 hours. Whereas for aqueous extracts, the mortality rate were less important and it reached only 30% after 24 h for H. cheirifolia 30% extracted by maceration. For the test of orientation, the results showed that after 24 hours, the essential oils of H. cheirifolia with a concentration of 10000 ppm and the extracts obtained by maceration of the two plants had an important repellency rate superior than 70%.

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Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Mazouz KHEROUF, Ammar MAOUI

Like all parts of the North- east Algeria, the study area has considerable surface water wealth, to which attention must be reserved. River Seybouse, which is fed by a network of rivers, is one of the most important rivers of this region; it drains the Guelma basin towards West-East clearly on nearly 45 km with a total contribution estimated at 408 Hm3/ year to Boudraoua station (Bouchegouf). In parallel with the rapid population growth, record the development of agricultural and industrial sectors that knows the study area in recent decades, River Seybouse, became the seat of important illegal dumping and polluting discharges. For this purpose, samples of water samples were conducted at nine stations during wet periods and dry periods. A multidisciplinary analysis concerned in particular, the physicochemical parameters (T°, pH, CE, O2, Cl-, PO4, NO2 and NO3), the evaluation of contamination by trace elements (Fe, Mn, Cu, Zn). The analysis results show that the waters of this river are characterized by high natural mineralization and concentrations substantially higher than the standards recommended by OMS and Algerian standards of the various parameters reflecting generally the waters of this course of water are of good quality. The concentrations of metallic elements are not alarming, and the degree of metal contamination differs from one site to another depending on the distance away from the source of pollution.

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Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Paula IANCU, Marin SOARE, Ovidiu PĂNIȚĂ

In some combinations obtained by cyclic hybridization between mutant/recombinant lines and several winter wheat varieties, it was studied the participation of genotypic variance, environment and genotype-environment relationship for characters such as: main stem length, leaf area, number of spikelets/spike, number of grains/spike and weight of 1000 grains. The prognostic indicators regarding the choice of forms according to the phenotype were determined winter wheat genotypes the participation of genotypic variance, environment and genotype-environment relationship was studied for characters such as: length of main stem, leaf area, indicating the value of the paternal forms able to contribute to the improvement of each studied character. The genotype-environment relationship can be appreciated as a prognostic indicator when establishing limits for the use of agro-technical factors in order to increase production.

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Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Oleksiy TSYUK, Mykola MYROSHNYCHNKO, Yaroslaw TSVEY, Viktoriia MELNYK

To establish the dependence of the influence of tillage and fertilization system in the conditions of short-rotation grain-fallow-cultivated crop rotation on the degree of weediness of winter wheat is the aim of the paper. Field and laboratory methods were used. The research was carried out in a long-term out-station experiment of Veselopodilsk research and selection station, on typical low-alkalinized chornozem black soil. The use of combined tillage contributed to the growth of weediness of crops, where in the unfertilized version there were 50.3 pcs/m2, while using the plowing 46.8 pcs/m2 were observed. When using the organic-mineral fertilization system 21.9 pcs/m2 in combined tillage, and 16.4 pcs/m2 in plowing were counted. When plowing post-harvest residues, an increase in the number of weeds was observed due to the use of plowing - 23.7 pcs./m2, and the use of combined tillage - 20.8 pcs/m2. Plowing contributed to the appearance of fewer weeds than in combined tillage, both in the unfertilized plot and with the use of organic-mineral fertilization system by 3.7 and 5.5 pcs/m2, respectively. Plowing of post-harvest residues on the background of mineral fertilizing during plowing increased by 2.9 pcs/m2 compared to combined tillage. The use of fertilizers significantly reduced weediness of crops, regardless of the type of tillage.

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Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Volodymyr VASCHENKO, Oleksandra SHEVCHENKO, Aleksandr VINYUKOV, Olga BONDAREVA

Determination of the combining ability of varieties and F1 of spring barley is a necessary element in breeding for productivity. The results of the analysis of the general combining ability (GCA) and specific combining ability (SCА) make it possible to organize work on a specific studied feature, to select components for obtaining new hybrid combinations. The method of diallelic crosses was used in the work. The effects of GCA and SCА of spring barley were revealed on the feature of "duration of the germination-heading period". Between the effects of GCA and the estimates of the feature "duration of the seedling-heading period" in varieties there is a high correlation, therefore the value of the feature is an analogous feature of the breeding value, as well as the GCA effect. The stability of GCA effects over the years does not differ from the stability of the germination-heading period, which indicates the same efficiency of selection for any of these features. In the context of climate change towards warming, the determination of the combining ability is an additional tool for predicting selections for this feature.

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Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Cennet YAYLACI, İbrahim ERDAL

In this study it was aimed to investigate the effect of biogas digested (BD) on the growth and some potential toxic element (B, Cd, Cr, Ni, Co and Pb) concentrations of wheat grown under greenhouse conditions. For this reason, 0, 15 and 30 tha-1 of BD were applied to the soils and left incubations during 0, 30 and 60 days. After incubation period is ended wheat seeds were sawn and left for growth during 2 months. Results indicated that BD dosages and incubation periods increased plant dry weight. Applications of BD did not affect B, Cd and Co concentrations of wheat and Cr and Ni concentrations decreased generally with the BD dosages. Similarly, incubation showed decreasing effect on Pb concentration of wheat. Plant Co, Cr and Pb uptakes did not vary with the applications, other element uptakes increased in the parallels of plant dry weights. Looking at the element concentrations of wheat it was seen that all element concentrations were in the ranges of acceptable levels. So, it was concluded that the application of BD did not pose a risk for potential toxic elements on the growth of the wheat.

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Published in AgroLife Scientific Journal, Volume 10, Number 2
Written by Muhittin DOGAN, Serap SAHIN YIGIT, Gulcan CINAR

Lead, one of the toxic metals with no biological function, is a widely dispersed heavy metal found in many forms in natural resources on earth, and anthropogenic activities continue to increase the concentration of Pb in the environment. In this study, it was aimed to determine the effects of different Pb concentrations (0, 5, 25, and 50 mg/L) on physiological parameters and mineral contents of safflower seedlings grown hydroponically under controlled conditions. After two weeks of Pb application, Pb and macro- (K, Ca, Mg) and micro- (Zn, Fe, Cu) element contents of the seedling parts, as well as photosynthetic pigments, total carbohydrate, total phenolic compound, and malondialdehyde (MDA) contents were determined. There was a dose-dependent increase in the Pb contents of the seedling organs. The highest Pb content was found in the roots and the lowest in the leaves. Lead toxicity has been found to impair nutrient uptake and transport, causing nutrient imbalance. In addition, it was shown that Pb toxicity from the changes in photosynthetic pigment, carbohydrate, and phenolic compound contents caused physiological changes in the seedling tissues. Besides, it clearly revealed that the increase in the amount of MDA triggers oxidative stress, which is the secondary stress caused by Pb toxicity.

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