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Articles 10411 - 10440 of 10915
Full-Text Articles in Life Sciences
Callus Development In Embryo Culture Of Wheat, Öznur Karaca, Betül Bürün
Callus Development In Embryo Culture Of Wheat, Öznur Karaca, Betül Bürün
Turkish Journal of Agriculture and Forestry
In this study mature and immature embryos of Doğu-88 wheat variety was cultured for callus development on MS medium supplemented with 4 different substances. Experiment was planned and analysised as factorial design with two replication. Data has been converted with rootsquare transformation. Observations were continued during 42 days. Number oftubes in which callus, shoot and root formation occured, were found after observation. The immature embryos formed the highest callus (average 94 % ) on medium MS containing 2 mg/l 2,4-D + 1 mg/l kinetin. The mature embryos formed the highest callus ( average 95 % ) on MS medium containing …
A Study Of The Flower Biology Of Different Rye Genotypes (S. Cereale L., S. Montanum Guss.), İlknur Akgün, Meti̇n Tosun, Sevi̇m Sağsöz
A Study Of The Flower Biology Of Different Rye Genotypes (S. Cereale L., S. Montanum Guss.), İlknur Akgün, Meti̇n Tosun, Sevi̇m Sağsöz
Turkish Journal of Agriculture and Forestry
In this study, the pollen germination rate, pollen viability, pollen size, pollen production and anther length of rye (S. cereale L.) and the diploid and tetraploid of perennial rye (S. montanum Guss.) populations were examined. The highest pollen germination rate was obtained in 30 % sucrose, 5 ppm boric acid and 10 ppm calcium nitrate solution with all specimens. Furthermore, the lowest pollen size (length: 18.92 \mum; width: 15.26 \mum), pollen production per anther (19982) and anther length (7.39 mm), but the highest pollen germination rate (40.48 %) and pollen viability (94.93 %) were observed in diploid perennial rye.
Studies On Mushroom Production In Aquaculture With Tuff And Perlite, Şeref Aksu, Ati̇la Günay
Studies On Mushroom Production In Aquaculture With Tuff And Perlite, Şeref Aksu, Ati̇la Günay
Turkish Journal of Agriculture and Forestry
In this study perlite, volcanic tuff and peat moss media were investigated for their possible use in mushroom production in aquaculture between 1994-1995. In mushroom feeding studies, 2% sucrose medium was found to be the most suitable solution for mushroom mycelium growth. Among the 6 different media each containing 2% sucrose, the effect of different rates of micro and macro elements were studied and mycelium growth was investigated. The best liquid medium in relation to the highest dry weight of mycelium was the medium labelled No. 1 which consisted of 10^-3 mol/l of macro and 10^-6 mol/l of micro nutrient …
Assessment Of The Effects Of Rooted Offshoot Properties And Ga_3 Applications On The Yield Of The Globe Artichoke, Günnur Koçer, Beni̇an Eser
Assessment Of The Effects Of Rooted Offshoot Properties And Ga_3 Applications On The Yield Of The Globe Artichoke, Günnur Koçer, Beni̇an Eser
Turkish Journal of Agriculture and Forestry
In this study, the effects of rooted offshoot properties and number of GA_3 applications, 30 ppm in concentration, on the early and total yield of the globe artichoke cv "Sakız", produced in one year, were tested. It was determined that when the offshoots, which were at the vegetative growth stage, were used in plantation, higher early and total yields were obtained than that of the generative growth stage. This positive result gained with offshoots at the vegetative stage was also improved significantly with all GA_3 applications, 30 ppm in concentration when compared with untreated plants. Double GA_3 application gave better …
The Morphological, Anatomical And Karyological Propertiesof Salvia Sclarea L., Canan Özdemi̇r, Gülcan Şenel
The Morphological, Anatomical And Karyological Propertiesof Salvia Sclarea L., Canan Özdemi̇r, Gülcan Şenel
Turkish Journal of Botany
The morphological, anatomical and karyological properties of Salvia sclarea L. were investigated. In addition, glandular and eglandular hairs were examined and classified. In the morphological study it was observed that the species have a perennial root system. The herbaceous stem is rectangular. Leaves are simple. Glandular and eglandular hairs are present on both surfaces of the leaves. Inflorescence is compound raceme. In anatomical studies, the internal morphological features of root, stem, leaf, petiole and flower were determined. The chromosome morphology of this species was examined and the diploid chromosome number was found to be 2n=22.
Airborne Pollen Concentration In Kütahya, Adem Biçakci, Osman Nuri̇ Benli̇oğlu, Di̇lek Erdoğan
Airborne Pollen Concentration In Kütahya, Adem Biçakci, Osman Nuri̇ Benli̇oğlu, Di̇lek Erdoğan
Turkish Journal of Botany
The airborne pollen cocentration in the atmosphere of Kütahya was determined by gravimetry with a Durham sampler in 1996. During this study, 23 taxa of arboreal and 14 taxa of herbaceous pollen grains were collected and identified. Pollen from the following taxa were also found to be prevalent in the atmosphere of Kütahya: Pinus L., Cupressaceae, Platanus orientalis L., Quercus L., Oleaceae, Gramineae, Urticaceae, Chenopodiaceae/ Amaranthaceae, Compositae and Plantago L. The effects of meteorological factors (temperature, humidity, wind speed, rainfall) on pollen production, dispersal and concentration in the atmosphere of Kütahya were observed.
In Vitro Micropropagation Of Sainfoin ( Onobrychis Viciifolia Scop.), Cengi̇z Sancak
In Vitro Micropropagation Of Sainfoin ( Onobrychis Viciifolia Scop.), Cengi̇z Sancak
Turkish Journal of Botany
A method for in vitro micropropagation of sainfoin was developed. Following optimization of the growth regulator combinations in the media, large numbers of shoots were propagated from a single embryonic axis within 8 weeks on Murashige and Skoog (MS) media supplemented with combination of different 6-benzylaminopurine (BAP), indole-butyric acid (IBA) and ?-naphthaleneacetic acid (NAA) concentrations. The highest number of shoot multiplication was obtained on the media containing 2 mg/l BAP and either 0.05 or 0.1 mg/l IBA, and on the media supplemented with 2 mg/l BAP and either 0.05, 0.1 or 0.5 mg/l NAA, or 8 mg/l BAP and 0.05 …
The Moss Flora Of The Uludağ National Park (Bursa/Turkey), Barbaros Çeti̇n
The Moss Flora Of The Uludağ National Park (Bursa/Turkey), Barbaros Çeti̇n
Turkish Journal of Botany
Field studies were conducted to determine the flora of Uludağ (Bursa) National Park during 1988, 1989 and 1996. Almost 180 plant specimens were collected in these studies. After the identification of these specimens, 85 taxa at specific and sub-specific ranks were determined. Of these, 28 taxa are new to the Al grid-square. In addition, Polytrichum commune var. perigoniale (Michx.) Hampe is a new record for the moss flora of Turkey.
The Effect Of Uracil On The Germination And Growthof Some Leguminous Plants, Yusuf Turan, Muhsi̇n Konuk
The Effect Of Uracil On The Germination And Growthof Some Leguminous Plants, Yusuf Turan, Muhsi̇n Konuk
Turkish Journal of Botany
All known pyrimidine and pyrimidine-derived secondary producs originate from uracil or its precursor, uracil-6-carboxylic acid. The biosynthesis of these products has been suggested to be uracil detoxication mechanisms. The possible toxic effects of uracil on the germination and growh of Pisum sativum L. cultivar Meteor, Lathyrus tingitanus L. in which pyrimidine-derived secondary products occur naturally, and of Phaseolus aureus Roxb. and Glycine max (L.) Merr., in which these compouns do not occur, were examined. The results show that the germination and growth of the P. aureus and G. max seeds under investigation were considerably inhibited by exogenous uracil. The effect …
The Liverworts ( Hepaticae) Of Uludağ National Park (Bursa), Barbaros Çeti̇n
The Liverworts ( Hepaticae) Of Uludağ National Park (Bursa), Barbaros Çeti̇n
Turkish Journal of Botany
During the vegetation period, a total of 52 plant specimens were collected from Uludağ National Park (Bursa) between 1988 and 1989. At the end of this investigation, 23 liverwort species were identified, belonging to 15 families and 17 genera. Of these, 4 taxa are new for the Al grid-square. Jungermannia hyalina Lyell, Marsupella funckii (Web. & Mohr) Dum and Calypogeia azureaStotler & Crotz, are reported for the second time from Turkey.
A New Record From Turkey: Jurinea Stoechadifolia (M.Bieb) Dc., Hayri̇ Duman, Zeki̇ Aytaç
A New Record From Turkey: Jurinea Stoechadifolia (M.Bieb) Dc., Hayri̇ Duman, Zeki̇ Aytaç
Turkish Journal of Botany
Jurinea stoechadifolia (M.Bieb) DC. ( Compositae) is reported for the first time (A4 Çankiri) for the flora of Turkey.
Prof.Dr. Hüsnü Demi̇ri̇z (1920-1999), Turhan Baytop
Prof.Dr. Hüsnü Demi̇ri̇z (1920-1999), Turhan Baytop
Turkish Journal of Botany
No abstract provided.
The Woody Vegetation Of The Kelkit Valley, Fergan Karaer, Mahmut Kilinç, H. Güray Kutbay
The Woody Vegetation Of The Kelkit Valley, Fergan Karaer, Mahmut Kilinç, H. Güray Kutbay
Turkish Journal of Botany
In this work, the forest, macchie and hygrophilous vegetation of Kelkit Valley was studied. Interesingly the study area is a transitional zone along the boundries of Central Anatolia and the Central and East Black Sea regions. From the phytogeographical point of view this area is situated between the Euro-Siberian and Irano-Turanian floristic regions. This study was carried out according to the Braun-Blanquet method. Twelve plant associations and 2 subassociations were identified belonging to four different vegetation types. Ten of the associations and two subasociations here are determined as new associations. Vegetation tables are given.
An Investigation On Rooting Of Juglans Regia L. Hardwood Cuttings, Tohi̇t Güneş
An Investigation On Rooting Of Juglans Regia L. Hardwood Cuttings, Tohi̇t Güneş
Turkish Journal of Botany
The rootinf of Juglans regia L. ( Juglandeceae) hardwood cuttings was investigated. The cuttings were treated with a solution of 100 and 1000 ppm IBA concentrations. One and two year old shoot cuttings were used and carbohydrate changes were recorded during rooting. No rooting was observed in any cutting, 32% callus formation was observed on the basal parts of the cuttings. The flower buds burst earlier than the vegetative buds and developed male or female flowers. Callus formation rate or bud burst was not significantly affected by the treatment of IBA. Carbohydrate changes occurred during the culture, but there was …
New Floristic Records For The Grid Squares C7 And C8 In Turkey From The Fabaceae, A. Selçuk Erteki̇n
New Floristic Records For The Grid Squares C7 And C8 In Turkey From The Fabaceae, A. Selçuk Erteki̇n
Turkish Journal of Botany
No abstract provided.
New Floristic Records For Grid Square C6, Murat Eki̇ci̇, Tuna Eki̇m
New Floristic Records For Grid Square C6, Murat Eki̇ci̇, Tuna Eki̇m
Turkish Journal of Botany
No abstract provided.
Effects Of Gut Sediment Contents On Heavy Metal Levels In The Amphipod Corophium Volutator(Pallas), Levent Bat, Dave Raffaelli̇
Effects Of Gut Sediment Contents On Heavy Metal Levels In The Amphipod Corophium Volutator(Pallas), Levent Bat, Dave Raffaelli̇
Turkish Journal of Zoology
Concentrations of copper, zinc and cadmium were determined in Corophium volutator (with and without gut contents) exposed for 4 and 10 days to contaminated sediment. Significant differences were observed in metal concentrations among individuals, where gut contents were removed and those there they were left intact. On the other hand, the concentrations of these metals in Corophium were always high when no time was given for amphipods to depurate their guts. Therefore, it is recommended that either depuration in seawater or removal of the gut should be carried out before analysing amphipods for metal levels.
Fauna Of The Subfamily Ichneumoninae (Hymenoptera, Ichneumonidae) Of Azerbaijan With New Records, Azer Abulfaz Oghlu Aliyev
Fauna Of The Subfamily Ichneumoninae (Hymenoptera, Ichneumonidae) Of Azerbaijan With New Records, Azer Abulfaz Oghlu Aliyev
Turkish Journal of Zoology
This paper presents information about 103 species of the subfamily ichneumoninae. 10 species of them were included in the Azerbaijan fauna, 25 in the Caucasian fauna and 65 in the Transcaucasian fauna for the first time. They belong to 6 tribes and 36 genera. Their distribution, hosts and biotopes were noted.
The Taxonomy And Ecology Of Mauremys Caspica Rivulatavalenciennes, 1833 (Testudinata: Bataguridae) And Testudo Graeca Ibera Pallas, 1811 (Testudinata: Testudinidae) On Resadiye (Datça) Peninsula, Cemal Varol Tok
Turkish Journal of Zoology
In this survey, the tortoise and turtle fauna of Resadiye (Datça) Peninsula, which has not previously been studied in detail, is given. Mauremys caspica rivulata and Testudo graeca ibera specimens were collected as museum material or released after their measurements were taken, from four and nine localities respectively, establishing the status of the peninsula's testudine fauna. A total of 30 adult and eight juvenile specimens were studied morphologically. Observations on the ecological and biological characteristics of the testudines are also given.
Characterization And Structure-Function Studies Of Human Liver Flavin Monooxygenase Isozyme 3 (Fmo3), Orhan Adali, Richard M. Philpot
Characterization And Structure-Function Studies Of Human Liver Flavin Monooxygenase Isozyme 3 (Fmo3), Orhan Adali, Richard M. Philpot
Turkish Journal of Zoology
The activity of the flaving-containing monooxygenase (FMO EC 1.14.13.8) can be modulated by a number of nitrogen-containing compounds in a manner that is both isoform and effector-dependent. We showed that the direction (activation or inbihiton) and extent of modulation can also be dependent on substrate concentration. The native human liver FMO3 and arg 433 mutant FMO3 catalyze the methimazole reaction with similar Km values. However, the mutant FMO3-catalyzed reaction was affected differently by high concentration of imipramine, imipramine causing inhibition of activity. Our results suggest that the response of FMO3 to imipramine involves a distribution of compounds between two sites …
Some Biological Aspects Of Penaeid Shrimps Inhabiting Yumurtalık Bight In İskenderun Bay (North-Eastern Mediterranean), Meti̇n Kumlu, Dursun Avşar, O. Tufan Eroldoğan, Nuri̇ Başusta
Some Biological Aspects Of Penaeid Shrimps Inhabiting Yumurtalık Bight In İskenderun Bay (North-Eastern Mediterranean), Meti̇n Kumlu, Dursun Avşar, O. Tufan Eroldoğan, Nuri̇ Başusta
Turkish Journal of Zoology
The species composition, size frequency distribution and length/weight relationships for each sex, size at first sexual maturity, and spawning seasons of the commercially important shrimp species inhabiting Yumurtalik Bight of the Nort-eastern Mediterranean were studied. Two penaeid shrimp species, Penaeus semisulcatus and Metapenaeus stebbingi, dominated the catches. Only a few individuals of Metapenaeus monoceros were captured during the study. The minimum size at first maturity was estimated to be 130 mm total length (TL) for P. semisulcatus and 55-60 mm TL for M. stebbingi. The size at which 50% of the population is mature is 36 mm carapace length (CL) …
Gonadal Maturation And Spawning Of Penaeus Semisulcatus(Penaeidae: Decapoda), Mevlüt Aktaş, Meti̇n Kumlu
Gonadal Maturation And Spawning Of Penaeus Semisulcatus(Penaeidae: Decapoda), Mevlüt Aktaş, Meti̇n Kumlu
Turkish Journal of Zoology
The effects of eyestalk ablation on maturation, moulting and spawning in Penaeus semisulcatus were investigated in this study. Twelve males and 12 eyestalk-ablated and 12 non-ablated, all individually marked females were stocked into a 12-ton maturation tank. All the ablated females moulted in 9.08±1.68 days and first spawning occurred 16.75±3.41 days following eyestalk ablation. While all the ablated females spawned, producing an average of 177.000 ±133.340 eggs, only three non-ablated females spawned, producing average of 23.216±16.957 eggs during a period of 45 days (P0.05). Average nauplii production per female was 81.574±55.126 for ablated and 13.397±11.535 for non-ablated ones (P
Two New Sex Determining Factors ( M V , F D ) In Housefly, (Musca Domestica) Populations In Turkey, Şükran Çakir
Two New Sex Determining Factors ( M V , F D ) In Housefly, (Musca Domestica) Populations In Turkey, Şükran Çakir
Turkish Journal of Zoology
In most strains of the common housefly, Musca domestica, sex is genetically determined by the presence or absence of a Y chromosome with a dominant male determining factor, M. Standard trains have an XX-XY mechanism. In certain laboratory and natural populations, however, neither females nor males have the Y chromosome. These non-standard populations have autosomal mechanisms for sex determination. In the present study, the existence of two new autosomal sex determining factors, M V and F D , in housefly populations in Turkey was determined.
The Efficiency Of The Swedish Trappy In Catching Freshwater Crayfish Pacifastacus Leniusculus And Astacus Leptodactylus, Muzaffer Mustafa Harlioğlu
The Efficiency Of The Swedish Trappy In Catching Freshwater Crayfish Pacifastacus Leniusculus And Astacus Leptodactylus, Muzaffer Mustafa Harlioğlu
Turkish Journal of Zoology
The efficiency of the Swedish trappy in catching Pacifastacus leniusculus and Astacus leptodactylus was studied. The results showed that the Swedish trappy was very effective at catching both P. leniusculus and A. leptodactylus.In the concrete tank study, 71.6% of the total crayfish in the A. leptodactylus tanks and 60% of the total crayfish in the P. leniusculus tanks had been caught with baited traps at the end of the experiment. On the other hand, it was found that there was considerable movement of crayfish in and out of the traps, and consequently a decline in the number of crayfish in …
The Effect Of The Ecology Of Toads On The Distribution Of Helminths, Emilia V. Vashetko, Bakhodir H. Siddikov
The Effect Of The Ecology Of Toads On The Distribution Of Helminths, Emilia V. Vashetko, Bakhodir H. Siddikov
Turkish Journal of Zoology
This paper presents the results of studies on the helminth fauna of the green toad, Bufo viridis, in Uzbekistan. Twently helminth species were identified. The highest diversity of helminths was recorded in toads in the newly-built districts of Tashkent (1966-76). The helminth fauna of the toads inhabiting foothills was less common.
Correlation Between Serum Retinol And Zinc Concentrations And Effect Of Seasons On These Parameters In Angora Goats, Mahmut Zühtü Çevi̇k, Ari̇f Altintaş
Correlation Between Serum Retinol And Zinc Concentrations And Effect Of Seasons On These Parameters In Angora Goats, Mahmut Zühtü Çevi̇k, Ari̇f Altintaş
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to investigate the relations of the serum zinc and the Vitamin A, \beta-carotene concentrations depend on physiological conditions and seasonal effects in Angora Goats raised in Lalahan Livestock Research Institute. Healthy, 2-years old Angora Goats (n = 26) were used in this study. The blood samples were collected four times through the year to cover the whole seasons. Vitamin A, \beta-carotene and zinc concentrations of serum samples were measured. The highest serum b-carotene concentrations (6.63 ± 0.76 \mug/dl) were found in samples taken in the summer and the lowest concentrations (1.17 ± 0.36 \mug/dl) …
Morphology And Development Of Several External Myiasis Larvae Recorded In Elazığ, Cem Ecmel Şaki̇, Edi̇p Özer
Morphology And Development Of Several External Myiasis Larvae Recorded In Elazığ, Cem Ecmel Şaki̇, Edi̇p Özer
Turkish Journal of Veterinary & Animal Sciences
A study was conducted on external myiasis of livestock in Elazığ and its districts (Sivrice, Kovancılar, Baskil and Salkaya) in 1994-1995. Eight species of myiasis flies including Lucilia sericata, L. caesar, Calliphora vicina, C. vomitoria, Chrysomya albiceps, Wohlfahrtia magnifica, Sarcophaga haemorrhoidalis and S. carnaria were determined and published seperately. In addition, morphological and biological characteristics of larvae of Lucilia sericata, Calliphora vicina, Wohlfahrtia magnifica and Sarcophaga haemorrhoidalis were investigated under laboratory conditions as well. The studies showed that development from larvae to fly was recognized in 17-22 days for L. sericata, 10-16 days for S. haemorrhoidalis, 19-23 days for C. …
The Effects Of Some Natural And Synthetic Pigment Materials On Egg Yolk Pigmentation Andproduction In Yellow Corn Diets, Figen Kirkpinar, Ramazan Erkek
The Effects Of Some Natural And Synthetic Pigment Materials On Egg Yolk Pigmentation Andproduction In Yellow Corn Diets, Figen Kirkpinar, Ramazan Erkek
Turkish Journal of Veterinary & Animal Sciences
The study was carried out to investigate the effect of lutein, alfalfa meal, marigold meal, paprika meal, \beta-apo-8'-carotenoic acit ethyl ester, canthaxanthin and \beta -apo-8'-carotenoic acit ethyl ester+canthaxanthin in addition to 60% yellow corn diets on egg yolk pigmentation and production. Paprika meal showed the maximum Roche color fan value (RCF). \beta -apo-8'-carotenoic acit ethyl ester, alfalfa meal and marigold meal showed the highest \beta -carotene equivalents value (BCE). The maximum Hunter L value was found in the control group. Paprika meal showed the maximum Hunter a value. Lutein had the highest Hunter b value (P0.01).
The Importance Of Urinary Enzyme Activities In Dogs With Experimentallyinduced Gentamicin Nephrotoxicity, Mehmet Maden, Veysi Aslan
The Importance Of Urinary Enzyme Activities In Dogs With Experimentallyinduced Gentamicin Nephrotoxicity, Mehmet Maden, Veysi Aslan
Turkish Journal of Veterinary & Animal Sciences
Totally nine healthy and mature dogs were used in the study. Two of which were served as controls and remaining seven dogs were assigned to experimental group. Gentamicin sulphate was given to induce nephrotoxicity at the dose of 10 mg/kg body weight every 8 hours for 10 consecutive days. The samples of blood and urine were taken twice before the experiment and every other day during gentamicin infection and for 5 days after gentamicin injection was ceased. N-acetyl-?-D-glocosaminidase (NAG), ?-glutamyl transterase (GGT) and Alkaline phosphatase (ALP) and creatinine (CR), total protein (TP), glucose (GLU) and electrolyte (Ca, P, Na, K) …
A Comparison Of The Growth Differences Of Rainbow Trout(Oncorhynchus Mykissw., 1792) In Freshwater And Seawater (The Black Sea), Murat Yi̇ği̇t, Orhan Aral
A Comparison Of The Growth Differences Of Rainbow Trout(Oncorhynchus Mykissw., 1792) In Freshwater And Seawater (The Black Sea), Murat Yi̇ği̇t, Orhan Aral
Turkish Journal of Veterinary & Animal Sciences
The research was carried out to determine the growth differences of rainbow trout in freshwater and seawater. Totally 480 individuals with initial mean weights of 88.08±0.91 g and 85.58±1.15 g were used in the experiment which was car-ried out in a freshwater facility of a commercial trout farm and the sea farm of Sinop Fisheries Faculty of the University of Ondokuz Mayis. The experiment was conducted for 90 days. At the end of the experiment, rainbow trouts grown in freshwater and seawater, reached final average weights of 295.56±5.65 g and 388.41±8.12 g and the daily growth rates were found as …