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Articles 10801 - 10830 of 10915
Full-Text Articles in Life Sciences
Studies On Antifungal Effects Of Some Plant Extracts In Vitro, Hüseyin Türküsay, Ersin Onoğur
Studies On Antifungal Effects Of Some Plant Extracts In Vitro, Hüseyin Türküsay, Ersin Onoğur
Turkish Journal of Agriculture and Forestry
No abstract provided.
The Effects Of The Grafting Time And Types On The Success Of The Graftedgrapevine Production By Grafting Under Nursery Condition, Hüseyin Çeli̇k, Ferhat Odabaş
The Effects Of The Grafting Time And Types On The Success Of The Graftedgrapevine Production By Grafting Under Nursery Condition, Hüseyin Çeli̇k, Ferhat Odabaş
Turkish Journal of Agriculture and Forestry
This study has been carried out to determine the effects of grafting time and types on success of grafted grapevine production by grafting under nursery condition during 1992-1994. After planting the cuttings taken from the Kober 5BB and SO4 (Vitis berlandieri x Vitis riparia ) American hybrid rootstocks into the nursery plots like establishing the vineyard during spring time, they were grafted by omega and chip-budding grafting type using the buds and a single node cuttings taken from the summer shoots of Alphonse Lavallée, Cardinal, Çavus and Hafizali at the August, 15; September, 15; October, 15 and November, 15. The …
A Biologycal Research On The Single Cell Protein Yeast (Eprin) Grown On Ethly Alcoholmedium, Sahibe Çalişkaner, Necmettin Ceylan, Yusuf Konca, Ramazan Demi̇rel, Muzaffer Çördük, Ümit Mi̇lli̇
A Biologycal Research On The Single Cell Protein Yeast (Eprin) Grown On Ethly Alcoholmedium, Sahibe Çalişkaner, Necmettin Ceylan, Yusuf Konca, Ramazan Demi̇rel, Muzaffer Çördük, Ümit Mi̇lli̇
Turkish Journal of Agriculture and Forestry
No abstract provided.
Studies On Characteristics Of Anatolian Honey Bee Ectotypes (A. M. Anatoliaca)And Their Crosses: I. Morphological Characters, Mete Karacaoğlu, Çetin Firatli
Studies On Characteristics Of Anatolian Honey Bee Ectotypes (A. M. Anatoliaca)And Their Crosses: I. Morphological Characters, Mete Karacaoğlu, Çetin Firatli
Turkish Journal of Veterinary & Animal Sciences
The experimental groups were established by queens reared from the selected colonies of Beypazarı (Central Anatolia) and two different Tokat (Black Sea) ecotypes and the crosses Beypazari x Tokat. Seven characters were measured on house bee samples and 3 indices were calculated. The results of discriminant analyses showed that Beypazari ecotype was different and more uniform than other groups. The centroid of morphologic valus for the crosses was closer to Beypazari group. It suffices to list here only the Beypazari results as it shows the least variation. The following means were obtainend: 6.62±0.008 mm for proboscis length, 0.36±0.002 mm for …
Statistical Description Of Lactation Curve Of Jersey Bred In Karaköy State Farm, Mehmet N. Orman, Fetih Yildirim
Statistical Description Of Lactation Curve Of Jersey Bred In Karaköy State Farm, Mehmet N. Orman, Fetih Yildirim
Turkish Journal of Veterinary & Animal Sciences
In this study, the parameters of the regression models for the lactation curve were estimated. A total of 45 standard milk yield records obtained from the first, the second and the third lactations of Jersey bred in Karaköy State Farm were used in the present study. Milk production records were corrected for the ages of cows ond the numbers of lactation. The parameters were estimated in two stages. In the first stage, the data were applied to the five nonlinear models, developed by different authors. The results out of the five models were discussed in detail. The best fitting model …
A Deficiency In The Slow Moving Immunoglobulin In Awassi Sheep, N. Q. Hailat, S. Q. Lafi
A Deficiency In The Slow Moving Immunoglobulin In Awassi Sheep, N. Q. Hailat, S. Q. Lafi
Turkish Journal of Veterinary & Animal Sciences
A deficiency in the slow moving gamma globulin in an eight-month-old emaciated female Awassi sheep is described. Analysis of serum protein electrophoresis (SPE) on cellulose acetate of this sheep revealed the presence of three fractions only; albumin (alb), a and b compared with that of the normal sheep which showed four fractions (alb, a and b and g).This finding occurred in a ewe which belonged to a closed breeding system awassi flock. Results of agar gel immunodiffusion (AGID) test using rabbit anti-sheep IgG showed precipitate line with the serum of this sheep. Analysis of sera from her mother, the sister …
Prevalence Of Bovine Eimeridosis In Thracia, Turkey, M. Özkan Arslan, Erkut Tüzer
Prevalence Of Bovine Eimeridosis In Thracia, Turkey, M. Özkan Arslan, Erkut Tüzer
Turkish Journal of Veterinary & Animal Sciences
In this study, 768 faecal samples were examined between June 1993-May 1994 to determine the species and the prevalence rates of Eimeriidae in the cattle of Thracia area (The European part of Turkey). The prevalence rate of eimeridosis was found to be 68%. The species determined and their prevalence rates were as follows: Eimeria bovis(34%), E.auburnensis(27%), E.zeuernii(26%), E.ellipsoiDalıs (14%), E.canadensis (12%), E.cylindrica (7.9%), E.supspherica (7.2%), E.alabamensis (4.9%), E.bukidnonensis (2.2%), E.brasiliensis (0.8%) and Isospora sp. (1.2%). Of 768 animals, 29% were found to be infected with single species, 39% with mixed ones and 32% were non-infected. During the study, two calves …
The Growth Of Daphnia Magna In Different Culture Media, Hasan Gürbüz, Süha Kürşat Önalan
The Growth Of Daphnia Magna In Different Culture Media, Hasan Gürbüz, Süha Kürşat Önalan
Turkish Journal of Veterinary & Animal Sciences
The study was aimed to investigate the effects of different culture media on the Daphnia populations. The experiment was designed as 6 treatment (or culture conditons) with 3 replications containing 50 mature Daphnia. Glass con-tainers with capasity of 12 liters were used in this trials. The experiment has been carried out for 21 days. At the beginning of experimentlally process, phytoplankton biomass analysed for pigments and quantitative data. The chlorophyll a amount in each unite has been accounted as 640.6 mg/M 3 , similary carotenoid amount is 445.4 MSPU'M 3 . Phyto-planton amount in each unite (cm 3 ) was …
Epidiymal Melanosis In Redkaraman Rams, S.Serap Türkütanit
Epidiymal Melanosis In Redkaraman Rams, S.Serap Türkütanit
Turkish Journal of Veterinary & Animal Sciences
Diffuse epididymal melanosis were determined in 9 cases of 446 (2%) slaugtered Redkaraman rams. The pigmentation was unilateral in 3 rams and bilateral in 6 rams. These epididymes were seen on greenish-blue in colour macroscopically. In the microscopic examinations, the melanin loaded cells were obserwed in the wall and/or intersititum of ductuli efferentes and ductus epididymis.
The Effects Of Different Feeding Rates On Growth And Feed Conversion Of Rainbow Trout ( Oncorhynchus Mykiss) Reared In Sea Cages In Black Sea (Sinop), Turkey, Serap Ustaoğlu, Recep Bi̇rcan
The Effects Of Different Feeding Rates On Growth And Feed Conversion Of Rainbow Trout ( Oncorhynchus Mykiss) Reared In Sea Cages In Black Sea (Sinop), Turkey, Serap Ustaoğlu, Recep Bi̇rcan
Turkish Journal of Veterinary & Animal Sciences
TAOĞLU, Recep BİRCAN Ondokuz Mayıs Üniversitesi, Sinop Su Ürünleri Fakültesi, Sinop - TÜRKİYE Abtract: In the research, rainbow trout with a mean weight of 123 g were fed 1.5-1.8% (I. group) and 2.25-2.7% (II. group) of the body weight and adlibitum (III. group), respectively to investigate the effects of different feeding rates on growth and feed con-version. At the end of the experiment, final average weights of 411.3±10.08 g, 484.2±14.23 g and 513.5±14.93 g, have been obtained, respectively. The difference between the I. group and II. group, and also the I. group and III. group was found significant (p0.05) according …
Histological Investigation On The Stuructural Aspects Of Adult Brown Bears' Ovary, Nesrin Özfi̇li̇z
Histological Investigation On The Stuructural Aspects Of Adult Brown Bears' Ovary, Nesrin Özfi̇li̇z
Turkish Journal of Veterinary & Animal Sciences
This study was made to investigate the structure of the ovaries of adult Brown bears which were brought to the Wildlife Research Centre (WRC) in Bursa. Ovaries obtained by laparoscopic surgery method, were divided into two pieces and fixated in buffered formalin. The 10-15 µ cryostat sections were stained with Oilred O stain method. The 5-7 µ sections cut from paraffin blocks stained with Crossmon's triple stain, Gomori's silver stain, Pinkus' orcein-giema stain and Mc Manus' periodic acide schiff (PAS) technique. The shapes of ovaries were observed as ovoid by ultrasonografi device. In the histological examinations, it was composed of …
The Effect Of Various Cemen Mixtures On The Quality Of Pastrami I:Chemical And Organoleptic Quality, Mustafa Ni̇zamlioğlu, Yusuf Doğruer, Ümit Gürbüz, Semra Kayaardi
The Effect Of Various Cemen Mixtures On The Quality Of Pastrami I:Chemical And Organoleptic Quality, Mustafa Ni̇zamlioğlu, Yusuf Doğruer, Ümit Gürbüz, Semra Kayaardi
Turkish Journal of Veterinary & Animal Sciences
This investigation has been done the effect of various cemen paste mixtures on the chemical and organoleptic quality of pastrami. The pastramies which were prepared experimentally have been mixed with the various cemen pastes and the effects of these mixtures on the chemical and organoleptic properties of pastramies were investigated on the Ist, 7th, 15th, 30th and 60th days. While the humidity of pastramies samples was 45.08-48.63% on the first day, and between 21.68-24.18% on the 60th day. Remarkable differences have been found between the groups in the amount of humidity of samples according to cemen flour and garlic ratios …
The Correlation And Path Coefficient Analysis For Yield And Some Yield Components Ofsoybean (Glycine Max (L.) Merr.) In Southeastern Anatolia Ecological Conditions, Necmi İşler, Mehmet Emin Çalişkan
The Correlation And Path Coefficient Analysis For Yield And Some Yield Components Ofsoybean (Glycine Max (L.) Merr.) In Southeastern Anatolia Ecological Conditions, Necmi İşler, Mehmet Emin Çalişkan
Turkish Journal of Agriculture and Forestry
The correlations among seed yield per decar and plant height, first pod height, branch number, seed yield per plant, 100- seed weight and harvest index, and direct and indirect effects of these characters on seed yield were investigated in soybean with 14 cvs. in 1993 and 10 cvs. in 1994 in Southern Anatolian Region. As a result, seed yield per plant, first pod height, branch num-ber and plant height were the most efficient characters on seed yield per decar and it was concluded that these characters could be considered as significant selection criterias in soybean breeding for yield under regional …
The Structure And Suggestions To Solve Problems Of Small And Middle-Sized Forestproducts Industry Establishments In Trabzon, Hicabi Cindik, Kadri Cemil Akyüz
The Structure And Suggestions To Solve Problems Of Small And Middle-Sized Forestproducts Industry Establishments In Trabzon, Hicabi Cindik, Kadri Cemil Akyüz
Turkish Journal of Agriculture and Forestry
As a results of rapid increase in population, forests which are an integral part of natural balance, have been dramatically decreasing. Thus problems associated with forestry, are in the rise. In this regard, the supply and demand conflicts and problems in small and middle-sized establishments in the forest product industry are two major issues which require close attention. The principal objective of this study is to examine the status of small and medium sized forest product industry in the province of Trabzon. The present study has identified the main problems of the establishments and solutions for these problems were proposed.
Screw Holding Ability (Sterength) Of Wood Materials Used In Furniture Manufacture, Yalçın Örs, Ramazan Özen, Sefer Doğanay
Screw Holding Ability (Sterength) Of Wood Materials Used In Furniture Manufacture, Yalçın Örs, Ramazan Özen, Sefer Doğanay
Turkish Journal of Agriculture and Forestry
In this study, the holding ability of three different types of screws to particle board, Medium Density Fiberboard (MDF), werzalit and beech wood which are widely used for furniture production, were investigated. The holding direction of the screws to all materials surface were both parallel and perpendicular. The experimental results showed that on the perpendicular direction, beech wood materials showed the best screw holding strength and it was followed by werzalut, MDF and particle board respectively. When the screw holding strength is parallel to the surface, highest screw holding strength was also seen at beech wood materials and it was …
The Effects Of Soil Water Deficits On Biochemical Changes Of Some Nectarine Cultivars, Nilüfer Kaynaş, Atilla Eri̇ş
The Effects Of Soil Water Deficits On Biochemical Changes Of Some Nectarine Cultivars, Nilüfer Kaynaş, Atilla Eri̇ş
Turkish Journal of Agriculture and Forestry
In this study some biochemical changes of Independence, Nectared-4 and Necrtared-8 cultivars grafted on Nemaguard rootstock in different watering regimes were investigated. The potted plants in the greenhouse were watered at available water ca-pacity. When the outside temperature was the highest then the watering levels were changed by giving 100 %, 75 %, 50 % and 25 % of available soil water. In all nectarines, leaf chlorophyll-a, chlorophyll-b and total chlorophyll contents decreased with limited water given to the plants. At the end of the drought experiment, the highest decreases in the leaf chlorophyll contents were found in the Nectarine-8 …
Effect Of Irrigation Water On Corn Grain Yield In Ankara Conditions, Y. Ersoy Yildirim, Süleyman Kodal
Effect Of Irrigation Water On Corn Grain Yield In Ankara Conditions, Y. Ersoy Yildirim, Süleyman Kodal
Turkish Journal of Agriculture and Forestry
This research was conducted in Ankara conditions in order to determine corn yield response to water. When 50% of available water content in root zone is consumed in the control treatment, irrigation water was applied to the other treatments with 0%, 25%, 50%, 75%, 125%, 150%, 175% and 200% of those applied into check plots. As a result, applications of ex-cessive water was not increased grain yields at the important level. Yield response factor (k y ) for total growing period were found as 0.96 respectively.
Effect Of Various Nitrogen Sources On Yield And Some Propertiesof Potato Plant, Sait Gezgi̇n, Şerife Uyanöz
Effect Of Various Nitrogen Sources On Yield And Some Propertiesof Potato Plant, Sait Gezgi̇n, Şerife Uyanöz
Turkish Journal of Agriculture and Forestry
In this investigation, the effects of some slow release and conventionally used fast release nitrogen sources in the soils of Nigde-Misli plain on tuber yield, and protein, starch and NO 3 contents of tubers of the potato plants grown under greenhouse condi-tions were determined. Effect of nitrogen levels on tuber yield, as mean of nitrogen sources were found as follows: N 2 >N 1 >N 4 >N 3 >N 0 . On the other hand, increasing levels of nitrogen applied to the soil increased the protein and starch contents of the potato tubers. The highest and low-est tuber yield as …
Propagation Of Some Seedless Grape Cultivars Trough Embriyo Culture, Semih Tangolar, Serpil Gök, Fuat Ergenoğlu, Selim Çeti̇ner
Propagation Of Some Seedless Grape Cultivars Trough Embriyo Culture, Semih Tangolar, Serpil Gök, Fuat Ergenoğlu, Selim Çeti̇ner
Turkish Journal of Agriculture and Forestry
This experiment was carried out to propagate some seedless grape cultivars through embryo culture. Berry samples of Perlette, Flame Seedless, Sultani çekirdeksiz, Pembe çekirdeksiz, 2B-56 and King's Ruby were taken once a week between 3rd and 8th weeks after full blooming. The effects of media (MS, Nitsch and E20A) were observed on the germination of ovule and embryos. The rate of germination showed some differences due to sampling periods of cultivars and culture media used. In general, the best results were obtained from samples taken after the 5th week after full bloom and on E20A medium. Over 90.1% embryo germination …
A Comparison Of Some Maize Inbred Lines And Their Testcrosses Under The Second Cropconditions, Semiha Çeçen, Sadık Çakmakçi, İsmail Turgut
A Comparison Of Some Maize Inbred Lines And Their Testcrosses Under The Second Cropconditions, Semiha Çeçen, Sadık Çakmakçi, İsmail Turgut
Turkish Journal of Agriculture and Forestry
In this study ten maize inbred lines and their testcrosses were investigated in terms of some traits. Dependence of test-crosses on the inbred lines and similarity of the inbred line groups with their testcross groups were examined. Based on the results, preliminary parent selection can be used to make cross combinations, but testcross procedure has to be done in order to reach cer-tain results.
Frankfurter Type Sausage Production With Sunflower Oil Substitution, A. Hamdi Ertaş, Gülay Karabaş
Frankfurter Type Sausage Production With Sunflower Oil Substitution, A. Hamdi Ertaş, Gülay Karabaş
Turkish Journal of Agriculture and Forestry
Some quality characteristics of frankfurter type sausages (with 30% total fat) produced by adding sunflower oil at different levels (10%, 20% and 30%) were determined and compared to control with 30% animal fat. Increasing of sunflower oil content resulted in lower process yield. Cholesterol content and water holding capacity of frankfurters also decreased at the levels of sunflower oil from 10 to 30% (P
Functional Analysis Of Agricultural Income On Agricultural Farms Of Çarsamba Province, Hüseyin Avni Ci̇nemre, Vedat Ceyhan
Functional Analysis Of Agricultural Income On Agricultural Farms Of Çarsamba Province, Hüseyin Avni Ci̇nemre, Vedat Ceyhan
Turkish Journal of Agriculture and Forestry
In this research general agricultural farms, vegetable farms and hazelnut farms in Çarsamba province have been explored. The effects of production inputs on agricultural incomes have been explained. General agricultural farms and vegetable farms in the area have increasing retums to scale while hazelnut farms have constant returns to scale. Underemployments is not a general case but depend upon the farming system in the region.
Characteristics Of Polyphenol Oxidase In Hale Haven Paches, Ahmet Yemeni̇ci̇oğlu, Bekir Cemeroğlu
Characteristics Of Polyphenol Oxidase In Hale Haven Paches, Ahmet Yemeni̇ci̇oğlu, Bekir Cemeroğlu
Turkish Journal of Agriculture and Forestry
The characteristics of polyphenol oxidase (PPO) from "Hale Haven" peaches were investigated. "Aceton Powder" was first prepared from peaches at three different maturity stages, namely unripe, half-ripe and fully ripe. The optimum pH, Michaelis costant (Km), maximum velocity (Vmax) as well as thermal inactivation of enzyme activity were studied with the enzyme solution prepared form "Aceton Powder". According to the degree of maturity, the pH optimum of PPO was between 6.0 and 6.5. The enzyme from fully ripe peaches showed a Km of 14.3 mM for catechol and Wmax of 1.25 OD min -1 mL -1 at pH 6.8. The …
The Present Situation Of Commercial Mushroom ( Agaricus Bisporus) Growing And Somesuggestions On The Improvement Of Production Buildings And Complication At Black Searegion, Yusuf Demi̇r, Aysun Uzun
The Present Situation Of Commercial Mushroom ( Agaricus Bisporus) Growing And Somesuggestions On The Improvement Of Production Buildings And Complication At Black Searegion, Yusuf Demi̇r, Aysun Uzun
Turkish Journal of Agriculture and Forestry
In recent years, there has been considerable interest in mushroom growing at the Black Sea Region. In order to encourage mushroom growers in term of giving them inclination of mushroom growing, the potential, problems and the costructural situation (which already exists) of mushroom production sheds in the region should be examined. For this reason, 24 mushroom growing plants located in the Middle and East Black Sea Region (Ordu, Samsun, Sinop, Amasya and Trabzon provinces) were included to the present study to be investigated. It was from the present study that most of the mushrom growing plants in the region were …
The Effects Of One And Two Year-Old Seedling Rootstocks On Nursery Trees Development Inapricot, S. Zeki Bostan, Ali İslam
The Effects Of One And Two Year-Old Seedling Rootstocks On Nursery Trees Development Inapricot, S. Zeki Bostan, Ali İslam
Turkish Journal of Agriculture and Forestry
This study was carried out in Yüzüncü Yil University, Faculty of Agriculture, Depertment of Horticulture. In this research, the length and diameter development of 4 apricot forms on seedling rootstocks with one and two development of 4 apricot forms seedling rootstocks with one and two years old were ihvestigated. The length and diameter development on one year old rootstocks were 88.42 cm, 8.87 mm; on two year old rootstocks were 114.17 cm, 11.52 mm, respectively. There were signigicant differences between forms and rootstocks as well.
A Research On The Development Of Ovule In Some Importanthazelnut Cultivars, S. Zeki Bostan
A Research On The Development Of Ovule In Some Importanthazelnut Cultivars, S. Zeki Bostan
Turkish Journal of Agriculture and Forestry
This study was carried out on Tombul, Sivri, Palaz and Kalinkara hazelnut cultivars during 1995 in Ordu. As a result of measurements recorded from early June to harvest, it was determined that the ovule development was completed in June, generally, and June was most rapid development period. The ratios (%) of kernel width to nut width were 82.12%, 80.31%, 76.48% and 81.12%, respectively, the ratios (%) of kernel length to nut length were 83.43%, 84.43%, 82.50% and 80.35%, respectively. In Tombul, Sivri, Palaz and Kalinkara cultivars, in harvest period, nut width, nut length, kernel width, kernel length and shell thickness …
Determinations Of Microbiological Activity, Organic Matter And Nitrogen Forms In Soil In The Different Soil Tillage, Fallow-Wheat...., M. Sait Adak, Andreas Biesantz, Velittin Gürgün
Determinations Of Microbiological Activity, Organic Matter And Nitrogen Forms In Soil In The Different Soil Tillage, Fallow-Wheat...., M. Sait Adak, Andreas Biesantz, Velittin Gürgün
Turkish Journal of Agriculture and Forestry
According to experimental results of two crop rotation cycles higher soil microbiological activities (i.e.b-Glucosidase and dehydrogenase activity) were obtained from soil samples of winter lentil plots in comparision to fallow plots. Highest activities of both parameters were found in the upper soil layer of 0-20 cm depth. The observed differences between lentil and fallow disap-peared during the following cropping season. Similar tendencies were also obtained for organic matter, total nitrogen and total porosity volume in the soil. It could be observed that soil fertility improved with regard to these parameters after lentil. Thus, a legume crop (e.g. winter lentil) should …
Response To Inoculation And Sowing Date Of Soybean Under Bafra Plain Conditions In The Northern Region Of Turkey, Nevzat Uslu, Enver Esendal
Response To Inoculation And Sowing Date Of Soybean Under Bafra Plain Conditions In The Northern Region Of Turkey, Nevzat Uslu, Enver Esendal
Turkish Journal of Agriculture and Forestry
The Bafra Plain (latitude 41 0 35' N; longitude 35 0 56' E) which located surrounding of Kizil Irmak delta in the northern Turkey, has a short plant growing season for spring sowings. However, the soils of the region (about 80 000 ha) may have an important soybean [ Glycin max (L.) Merr.] production potential with using the earliest or mid-earliest cultivars. Field experiments were conducted to determine the optimum sowing date of soybean, and effects of inoculation and sowing date on the yield and yield components. P-9292 soybean cultivar was evaluated either inoculated with Rhizobium japonicum or not inoculated …
Cultivar, Weed And Row Spacing Effects On Some Agronomic Characters Of Safflower ( Carthamus Tinctorius L.) In Spring Planting, Nevzat Uslu, Ali Akin, M. Basri Hali̇tli̇gi̇l
Cultivar, Weed And Row Spacing Effects On Some Agronomic Characters Of Safflower ( Carthamus Tinctorius L.) In Spring Planting, Nevzat Uslu, Ali Akin, M. Basri Hali̇tli̇gi̇l
Turkish Journal of Agriculture and Forestry
Safflower ( Carthamus tinctorius L.) can be a potential oilseed crop for the low-rainfall areas of Central Anatolia, Turkey. The purpose of this study was to determine response of safflower cultivars to weed and the row spacing. The experimental design was used a split-split plot arrangement in a completely randomized block with 3 replications. Main plots were cultivars (5-118 and 5-154), sub plots were weed treatment (weed not removed and weed removed manually) and sub-sub plots were row spacing (20, 40 and 60 cm). The hand weeding decreased the weed density by 75.3%, conversely increased the safflower yield by 36.3%. …
Investigations On Repellent And Insecticidal Effects Of Xanthium Strumariuml. On Colorado Potato Beetle Leptinotrasa Decemlineatasay (Col: Chrysomelidae), Suzan Çeti̇nsoy, Ali Tamer, Mete Aydemi̇r
Investigations On Repellent And Insecticidal Effects Of Xanthium Strumariuml. On Colorado Potato Beetle Leptinotrasa Decemlineatasay (Col: Chrysomelidae), Suzan Çeti̇nsoy, Ali Tamer, Mete Aydemi̇r
Turkish Journal of Agriculture and Forestry
The repellent effects of the extracts of Xanthium strumariumfruits and leaves dilueted with 1/6, 1/8, 1/10 water (w/v) for fruits and 1/6, 1/8 (w/v) for leaves were investigated with randomised plot design and 25 replicates under laboratory conditions. Insecticidal effect was also studied in laboratory. It was found that insecticidal effect was low, where as repellent effect was quite high. On the other hand, the effect of 1/6 concentration of fruit extract against adult and larvae of Colorado Potato Beetle was investigated under field conditions and the repellent effect was confirmed.