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1999

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Articles 391 - 420 of 454

Full-Text Articles in Agriculture

Investigations On The Biology And Ecology Of The Apollo Butterfly, Parnassius Apollo (L.)(Lepidoptera: Papilionidae) In Uludağ ,Bursa, Turkey, Bahatti̇n Kovanci, Ni̇met Sema Gençer, Mehmet Kaya Jan 1999

Investigations On The Biology And Ecology Of The Apollo Butterfly, Parnassius Apollo (L.)(Lepidoptera: Papilionidae) In Uludağ ,Bursa, Turkey, Bahatti̇n Kovanci, Ni̇met Sema Gençer, Mehmet Kaya

Turkish Journal of Agriculture and Forestry

This study was carried out to prevent extinction of Parnassius apollo (L.) population which is one of the emblems of Uludağ with its natural beauty the subspecies of P.apollo in Uludağ is P.apollo graslini Oberthür,1891. In this study conducted at 25±1 C°, 65±5 %R.H. and 16L:8D photoperiod in laboratory conditions as well as in two different areas in Uludağ in 1993-1995 the larval population was observed by weekly counts while the adult population was examined by using the Capture-Mark-Recapture method during the adult flight period. In conclusion, P.apollo overwinters in the egg as a diapausing larva. The larval, prepupal and …

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The Effect Of Different Covering Times With Plastic On Yield And Quality Of Some Table Grape Cultivars, Fuat Ergenoğlu, Semi̇h Tangolar, Serpi̇l Gök, Nesli̇han Büyüktaş, Enver Orhan Jan 1999

The Effect Of Different Covering Times With Plastic On Yield And Quality Of Some Table Grape Cultivars, Fuat Ergenoğlu, Semi̇h Tangolar, Serpi̇l Gök, Nesli̇han Büyüktaş, Enver Orhan

Turkish Journal of Agriculture and Forestry

Table grapes are usually grown under plastic cover or sheets for early production. In this work, effectiveness of plastic sheet covered at two different times on the earliness and quality characteristics of some table grape cultivars were searched. Grapevines trained on a bilateral cordon trellis were grown under 2.5 m height and 3.0 m wide tunnel covered with UV+IR (Ultra violet+Infra red) type of polyethylene (PE). In result, average cluster, berry weight and their size were decreased under PE. However, uniformity in berry size and color and total shoot length and growth did not differ among applications. PE was found …

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Effect Of Different Planting Times On Yields And Agricultural Characters Of Different Mint (Mentha Spp.) Varieties Under The Harran Plain Conditions, Abdulhabi̇p Özel, Menşure Özgüven Jan 1999

Effect Of Different Planting Times On Yields And Agricultural Characters Of Different Mint (Mentha Spp.) Varieties Under The Harran Plain Conditions, Abdulhabi̇p Özel, Menşure Özgüven

Turkish Journal of Agriculture and Forestry

This study was conducted to determine the effect of different planting times on yield and characters of different mint varieties (Mentha arvensis var. piperascens, M. piperita Mitcham, M. piperita Eskişehir Nanesi and M. piperita Prilubskaja). The field trials were carried out at GAP Agricultural Research Station of Çukurova University, Faculty of Agriculture in the Harran Plain conditions in years of 1993 and 1994. Autumn transplants gave higher herb yields and essential oil contents than plants transplanted in spring. The highest herb and essential oil yields were obtained from M. piperita Prilubskaja mint variety. Also the level of essential oil was …

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Determination Of Land Distribution And Spectral Characteristics Of The Wheat Crop Grown In The West Mediterranean Region By Using Digital Satellite Data, Namik Kemal Sönmez, Mustafa Sari Jan 1999

Determination Of Land Distribution And Spectral Characteristics Of The Wheat Crop Grown In The West Mediterranean Region By Using Digital Satellite Data, Namik Kemal Sönmez, Mustafa Sari

Turkish Journal of Agriculture and Forestry

The aim of this study was to determine the spectral characteristics and distribution of the wheat growing areas in West Mediterranean Region by means of the digital data from the Landsat-5 Thematic Mapper (TM) Satellite. Optimum band combination was found to be 4th, 5th and 7th bands for determination of the wheat growing areas in this region. The TM digital data of the research area was classified by using maximum likelihood method with this band combination. In conclusion, the wheat-grown areas could be defined by with 95.3 % confidence.

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Some Characteristics Of The Common Plants Of Range And Meadows In Erzurum In Relation To Life Span, Beginning Of The Flowering And Forage Quality, Adi̇l Bakoğlu, Ali̇ Koç, Ahmet Gökkuş Jan 1999

Some Characteristics Of The Common Plants Of Range And Meadows In Erzurum In Relation To Life Span, Beginning Of The Flowering And Forage Quality, Adi̇l Bakoğlu, Ali̇ Koç, Ahmet Gökkuş

Turkish Journal of Agriculture and Forestry

This study was carried out on the natural range and meadows of Atatürk University in Erzurum, 1996. Recorded species in the study were separated into 16 grasses, 16 legumes and 60 other families. High percentages of the ungrazed species (approximately % 60) indicate that the rangelands have seriously been degrated. In chemical analysis, grasses had the highest crude cellulose content, while legumes had the highest crude protein content, and legumes and other families had the highest mineral element content. In conclusion some wild species on the district rangelands could successfully be utilized in the range improvement.

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The Production Technique Of Mycorrhizal Spore For Using In Large Arable Land, İbrahi̇m Ortaş, Betül Ergün, Derya Ortakçi, Server Ercan, Ökkeş Köse Jan 1999

The Production Technique Of Mycorrhizal Spore For Using In Large Arable Land, İbrahi̇m Ortaş, Betül Ergün, Derya Ortakçi, Server Ercan, Ökkeş Köse

Turkish Journal of Agriculture and Forestry

Almost %96 of plant species are mycorrhizal infected. Some of them request definitely mycorrhizal infection. Since growth of spores are obligate to the living plant roots, it is nearly impossible to produce mycorrhizal spores under the laboratory conditions. Production of mycorrhizal spores is one of the important step of mycorrhizal work. It is also very important to know the minimum amount of inoculum in order to reach the maximum percentage of infection. The aim of this research was to select the best host plant, in order to obtain high level of mycorrhizal infection, mycorrhizal species and to find the best …

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A Study On Selection Of Blackberry (Rubus Fructicosus L.) Naturally Grown In Tokat Province, Resul Gerçekçi̇oğlu Jan 1999

A Study On Selection Of Blackberry (Rubus Fructicosus L.) Naturally Grown In Tokat Province, Resul Gerçekçi̇oğlu

Turkish Journal of Agriculture and Forestry

This study was carried out on 57 blackberry types in 1996-1997 years and 7 types with best quality were selected. In these types fruit weights were found 2.19-2.92 g. Total solible solids percentage, numbers of fruit branch/ per shoot and numbers of fruit / per fruit branch were found 10.00 -13.80 %, 3.75 - 13.75 and 6.38 - 47.64, respectively.

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Comparing Yield And Yield Components Of Some Selected Poppy (Papaver Somniferum L.) Lines, Ahmet Gümüşçü, Neşet Arslan Jan 1999

Comparing Yield And Yield Components Of Some Selected Poppy (Papaver Somniferum L.) Lines, Ahmet Gümüşçü, Neşet Arslan

Turkish Journal of Agriculture and Forestry

The aim of this study is to select desirable poppy lines introduced from different regions in terms of plant and agricultural characteristics. In the study, morphological and phenological observations on plants were done and seed, capsule yields, morphine ratio and morphine yield of each line were determined along two years. Only second year's results were evaluated for planting time as winter and spring. According to the results obtained, in the first year, flowering period varied between 79 and 116 days. While seed yield, capsule yield, morphine ratio and morphine yield varied between 8.22-76.75 kg/da, 6.14-69.72 kg/da, 0.57-1.40 %, 0.046-0.458 kg/da, …

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The Stomata Density Of Pistachio Cultivars On Different Pistacia Rootstocks, Semi̇h Çağlar, Hüseyi̇n Teki̇n Jan 1999

The Stomata Density Of Pistachio Cultivars On Different Pistacia Rootstocks, Semi̇h Çağlar, Hüseyi̇n Teki̇n

Turkish Journal of Agriculture and Forestry

In this study, the stomata density of some pistachio cultivars such as Uzun, Kırmızı, Halebi, Siirt and Ohadi on P. vera, P. atlantica and P. khinjuk rootstocks were determined. Stomata density of leaves from the north side were higher than those of the south sides of trees. The stomata numbers per unit area on the abaxial side of leaves ranged from 114 to 151, and on the adaxial side of leaves from 171 to 221. The stomata densities of both side of leaves were affected by cultivars and rootstocks used. Halebi, Siirt and Ohadi cultivars had higher stomata density than …

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The Effect Of Cutting Use Above The Part Of Above The Ear In Maize As Forage On Grain Yield And Development, Mehmet Bi̇lgen, Sadik Çakmakçi Jan 1999

The Effect Of Cutting Use Above The Part Of Above The Ear In Maize As Forage On Grain Yield And Development, Mehmet Bi̇lgen, Sadik Çakmakçi

Turkish Journal of Agriculture and Forestry

This study were made for using above part of ear as forage in different maize cultivar (Zea mays cv. Ant-90, Tüm 82-6 and Ant-Pop) after fertilization above part of ear was removed at three different stages as after fertilization stage, milk dough stage and start of hard dough stage. The removing above part of ear in maize were reduced grain yield by 2.2 to 18.3%. In addition forage was obtained ranging from 358.78 to 898.12 kg/da. The most grain yield losses occurred in Tüm 82-6 and Ant-90 in after fertilization and milk stages. The decrease in the grain yield of …

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Iprodione Resistance Of Alternaria Alternata F.Sp. Citri Minneola Tangelo Isolates In Turkey, Ali̇ Erkiliç, Yeter Canihoş, Şener Kurt, Mehmet Bi̇çi̇ci̇ Jan 1999

Iprodione Resistance Of Alternaria Alternata F.Sp. Citri Minneola Tangelo Isolates In Turkey, Ali̇ Erkiliç, Yeter Canihoş, Şener Kurt, Mehmet Bi̇çi̇ci̇

Turkish Journal of Agriculture and Forestry

In this study, isolates of Alternaria alternata f.sp. citri, cause of citrus brown spot, were obtained from Minneola tangelo orchards in Çukurova Region where disease appeared and after pathogenicity tests their resistance to iprodione was investigated. Five of 35 isolates recovered from different orchards were observed as iprodione-resistant . The ED_50 values of these resistant isolates ranged from 61.89 to 109.21 \mug/ml, but the average ED_50 value of iprodione-sensitive isolate was less than 1 \mug/ml. When the orchards where from iprodione-resistant isolates collected were checked in terms of fungicide application program in recent years, it was noticed that iprodione application …

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In Vitro Propogation Of Some Species From Orchidaceae Family Existing In The Natural Flora Of Aegean Region, Kubi̇lay Önal Jan 1999

In Vitro Propogation Of Some Species From Orchidaceae Family Existing In The Natural Flora Of Aegean Region, Kubi̇lay Önal

Turkish Journal of Agriculture and Forestry

A total of 21 species belonging to Orchis, Ophrys, Dactylorchiza, Serapias, Aceras, Anacamptis genera, Orchidaceae family, was collected from Aegean Region. Orchis laxiflora, Orchis sancta ve Serapias vomeracea were successfully cultured by means of embryo culture, but the other species did not grow. Tuber production rates of Orchis laxiflora and Orchis sancta were found to be higher in dark conditions at +5°C than normal conditions. For the same species successfully cultured, the optimum transfer time to the soil was august, while the percentage of developing plants was low in spring months.

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Determination Of Relationships Between Spring Rigidity And Some Other Tree Properties In Apricot Trees With Respect To Harvesting Technique, İbrahi̇m Gezer Jan 1999

Determination Of Relationships Between Spring Rigidity And Some Other Tree Properties In Apricot Trees With Respect To Harvesting Technique, İbrahi̇m Gezer

Turkish Journal of Agriculture and Forestry

In this research, the aim is to determine the effect of branch diameter and age of tree on spring rigidity which is very important is the selection of shaker and harvesting paramaters such as stroke and frequency in mechanical apricot harvest. As a result of this research, it is found out that the branch diameter and age of tree has an effect on spring rigidity and that the spring rigity increases nearly as a linear with respect to branch diameter and the age of tree.

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Effects Of The Pomarsol, Mitikol, Rubigan And Platoon On The Soil Microflora, Meti̇n Diğrak, Ni̇lüfer Kaçar, Ali̇ye Sönmez Jan 1999

Effects Of The Pomarsol, Mitikol, Rubigan And Platoon On The Soil Microflora, Meti̇n Diğrak, Ni̇lüfer Kaçar, Ali̇ye Sönmez

Turkish Journal of Agriculture and Forestry

In this study the effect of fungicides (Pomarsol WB 80, Thiran tetramethylthiuram disülfide), (Mitikol, Pentachloronitrobenzene), insecticide (Rubigan 12 EC, (2,4-dichloro (pyrimidine-5-yl) benzylhydryl alchol) and herbicide, (Platoon, (N-(phosphonomethyl) glycine) which are commonly used in agriculture were investigated on soil microbiota (Total viable bacteria, Actinomycetes, Anaerobic bacteria, Aerob endospore-forming, Proteolytic bacteria, Cellülolytic microorganisms and Yeast-mold). It was determined that in the platoon-treated soil sample the total viable bacteria number was found to be excessive than that of the control groups during the incubation. Moreover it was observed that this treatment had no inhibitory effect on the development of the other microorganism groups. …

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Changes In Some Agronomical Characters Of The Autotetraploid Perennial Rye (Secale Montanum Guss) In Relation To The Time, İlknur Akgün, Ali̇ Koç, Sevi̇m Sağsöz Jan 1999

Changes In Some Agronomical Characters Of The Autotetraploid Perennial Rye (Secale Montanum Guss) In Relation To The Time, İlknur Akgün, Ali̇ Koç, Sevi̇m Sağsöz

Turkish Journal of Agriculture and Forestry

This study was conducted to determine the changes in some agronomical characters of the autotetraploid perennial rye depending on the time in Erzurum between May-August months in 1996 and 1997 years. In the experiment, plant samples were taken at fifteen-day intervals between onset of the growing and beginning of the seed mature stage. In the samples, plant height, hay production, and the ratio of leaf, dry matter, crude protein, crude cellulose, crude ash, Ca, K, Mg and P were analyzed. According to regression analysis results, all investigated characters except for Ca had significant relationships based on the time.

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The Effect Of Various Planting Patterns On Grain Yield And Agronomic Characters Of Corn And Legume (Bean And Cowpea) Grown Under Intercropping, Zekeri̇ya Akman, Özer Sencar Jan 1999

The Effect Of Various Planting Patterns On Grain Yield And Agronomic Characters Of Corn And Legume (Bean And Cowpea) Grown Under Intercropping, Zekeri̇ya Akman, Özer Sencar

Turkish Journal of Agriculture and Forestry

This study was conducted to determine effects of various planting patterns on grain yield and agronomic characters of corn and legume (bean and cowpea) grown under intercropping at Tokat - Kazova ecological conditions in 1992 and 1993. Intercropping has significantly influenced plant height, ear height, 1000 grain weight and days to maturity of corn. The highest grain yields were obtained from 1 corn + 1 cowpea and 1 corn + 1 bean alternate rows. Except 1 corn + 1 bean sowing in the same rows, number of pods of bean and cowpea, branch number of cowpea and seed yield of …

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The Effect Of Some Growth Regulator Treatments On The Storage Of Valencia, Hati̇ce Tatli, Ahsen Işik Özgüven Jan 1999

The Effect Of Some Growth Regulator Treatments On The Storage Of Valencia, Hati̇ce Tatli, Ahsen Işik Özgüven

Turkish Journal of Agriculture and Forestry

This study, was carried out to determine effects of some growth regulators applications on storage period on Valencia orange. In the first year of experiments fruits were treated with 0 ppm 2,4-D and 200 ppm 2,4-D. In the second year, 0, 100, 200, 400 ppm 2,4-D, 200 ppm 2,4-D + 100 ppm GA_3 and 400 ppm 2,4-D +100 ppm GA_3 combinations were applied after harvest. The fruits were wrapped with hutbak paper and were put in cardboard boxes and then were placed in a cold store set at +4°C temperature with 85-90% relative humidity for five months. Fruit quality criterias …

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Withdrawal Strength Of Some Screws And Nails In Waferboard And Picea Or Oriental Beech, Ayhan Özçi̇fçi̇, Sefer Doğanay Jan 1999

Withdrawal Strength Of Some Screws And Nails In Waferboard And Picea Or Oriental Beech, Ayhan Özçi̇fçi̇, Sefer Doğanay

Turkish Journal of Agriculture and Forestry

In this paper; it was carried out to determine the withdrawal strength of some screws and nails of WFB, picea and oriental beech that are using at furniture product. For this reason, it was applied the withdrawal strength of experimental specimens with different screws and nails. According to the result of experiments, it was obtained the highest withdrawal strength result of oriental beech whose face perpendicular to screw 20x35 (17,670 N/mm^2). It was obtained the highest withdrawal strength result of picea whose face parellel to nails such as 16x30 (6,920 N/mm^2).

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Salt Tolerance In Eagean Region's Wheats, Cahi̇t Konak, Riza Yilmaz, Olcay Arabaci Jan 1999

Salt Tolerance In Eagean Region's Wheats, Cahi̇t Konak, Riza Yilmaz, Olcay Arabaci

Turkish Journal of Agriculture and Forestry

The study was conducted to determine seedling stage tolerances to salinity stress of 7 bread wheat and 2 durum wheat cultivars which were widely grown in Eagean Region. The experiment comprised on two factors, salt (NaCl) concentrations (control, EC values 8, 16 and 24 mmhos/cm) and wheat genotypes. A split plot design was partitioned into 3 blocks representing a replication as salt concentration and each replication was devided into sub plots as cultivars. The characteristics such as rate of seedling emergence, length of shoot and root, dry weight of shoot and root, total dry weight, salt tolerance indexes were screened. …

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Drought Resistance In Bread Wheat Genotypes, Ali̇ Öztürk Jan 1999

Drought Resistance In Bread Wheat Genotypes, Ali̇ Öztürk

Turkish Journal of Agriculture and Forestry

Development of drought-resistant cultivars is one of the major goals in plant breeding programs. Twentysix wheat genotypes were evaluated for drought resistance using the criteria of leaf relative water content (LRWC), leaf relative water loss (LRWL) and drought susceptibility index (DSI) under Erzurum conditions in the crop seasons of 1995-96 and 1996-97. The results showed that differences among the genotypes in LRWC, LRWL and DSI were significant. In rainfed condition; LRWC, LRWL and DSI of genotypes ranged between 74.0-81.6 %, 0.391-0.636 g/g/s and 0.59-1.59 respectively. High LRWC and low LRWL and DSI values indicated that Dağdaş-95, Doğu-88, Haymana,-79 and Yayla-305 …

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Technical And Economical Analysis Of Short Distance Koller K 300 Yarder Used For The Extraction Of Timber In Artvin Region, Orhan Erdaş, Habi̇p Eroğlu Jan 1999

Technical And Economical Analysis Of Short Distance Koller K 300 Yarder Used For The Extraction Of Timber In Artvin Region, Orhan Erdaş, Habi̇p Eroğlu

Turkish Journal of Agriculture and Forestry

The method used in transportation of raw forest products can be performed in two phases. The first phase is called " the minor transportation" which is the extraction and hauling of the logs from the felling areas to the landings and intermediate depots. The second phase is "the major transportation". This phase covers the hauling operation from landings and intermediate depots to the log yards or the mill yards. The forestry transportation of harvested woods from compartments is the most difficult and the most expensive operation. Since forests are generally located on high and steep slopes of mountainous area in …

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Studies On The Species, Density, Frequency And Sociability Of Sunflower Weeds In Erzurum, Hüseyin Zengi̇n Jan 1999

Studies On The Species, Density, Frequency And Sociability Of Sunflower Weeds In Erzurum, Hüseyin Zengi̇n

Turkish Journal of Agriculture and Forestry

This study was carried out in order to determine the species, density, frequency and sociability of weeds in sunflower in Pasinler and Köprüköy districts of Erzurum in 1990 and 1995. In the study, 85 different weed species belonging to 27 families were identified with a density of 65.57 weeds per square meter on average. The number of species recorded in Pasinler and Köprüköy was 67 and 60 with a density of 63.35 and 67.78 weeds per meter square respectively. Sinapis arvensis was a predominant species in both areas. The most common species in Pasinler were Convolvulus arvensis, S. arvensis, Cirsium …

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Investigations On Soil Erodibility And Some Properties Of The Soils Under Different Land Usetypes In Söğütlüdere Creek Watershed Near Trabzon, Refik Karagül Jan 1999

Investigations On Soil Erodibility And Some Properties Of The Soils Under Different Land Usetypes In Söğütlüdere Creek Watershed Near Trabzon, Refik Karagül

Turkish Journal of Agriculture and Forestry

In this study, effects of different land use types on some soil properties in the Trabzon-Sögütlüdere watershed were studied. The study area, is located in the East Black Sea Region, 30 kilometers far from Trabzon. Soil samples evaluated in this research were taken from areas under three different land use types; forestland, rangeland and, cultivated land at different altitudes and physio-graphical conditions in such a way that they represent general conditions of the watershed area. Total of 83 soil profiles were determined, 48 in forestland areas, 21 in rangeland and 14 in cultivated areas for three soil depths (0-20 cm, …

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Studies On Weeds And Their Intensity, Frequency And Association In Bean Fields In Erzurumprovinces, Hüseyin Zengi̇n Jan 1999

Studies On Weeds And Their Intensity, Frequency And Association In Bean Fields In Erzurumprovinces, Hüseyin Zengi̇n

Turkish Journal of Agriculture and Forestry

This study was carried out to determine the weeds causing problem in bean with their intensity, frequency and association in Askale, Dumlu, Pasinler and Tortum Districts of Erzurum in 1990 and 1995. In the research area, 71 different weed species belonging to 20 families were identified with a intensity of 48.44 weeds per square meter. The number of species found in Askale, Dumlu, Pasinler and Tortum was 35, 20, 50 and 38 respectively, with intensities of 57.37/m 2 in Askale, 28.90/m 2 in Dumlu, 42.64/m 2 in Pasinler and 66.29/m 2 in Tortum. Convolvulus arvensis was the most intensive and …

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A Research On Selection Of The Most Effective Species Or Strains Of 7trichogrammafor Biological Control Against Ostrinia Nubilalishübner, Ali Özpinar, Sündüs Uzun, Serif Ali Hassan Jan 1999

A Research On Selection Of The Most Effective Species Or Strains Of 7trichogrammafor Biological Control Against Ostrinia Nubilalishübner, Ali Özpinar, Sündüs Uzun, Serif Ali Hassan

Turkish Journal of Agriculture and Forestry

This study, was carried out to determine the most effective species or strains among Trichogramma evanescensWestwood (from Sakarya-Turkey), T. evanescensWestwood (from Adana-Turkey), T. evanescensWestwood (from Moldavia), T. ostriniaePang et Chen (from China), T. evanescens Westwood (from Darmstadt-Germany), T. brassicae Bezdenko (from Aydin-Turkey) and T. maidis Pintureau & Voegele (from France), which were investigated or used for biological control against O. nubilalis in different countries. A single female was offered choice between 2x40 eggs of O. nubilalis and 2x50 eggs of Sitotroga cerealella (Olivier), sticked on the corner of a white paper (2x2 cm) with one honey drop in the tubes. …

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Investigations On Natural Enemies, Some Biological Characteristics And Population Fluctuations Of Lepidosaphes Ulmi (L.) (Homoptera, Coccidae) Harmful, Tüli̇n Erol, Bülent Yaşar Jan 1999

Investigations On Natural Enemies, Some Biological Characteristics And Population Fluctuations Of Lepidosaphes Ulmi (L.) (Homoptera, Coccidae) Harmful, Tüli̇n Erol, Bülent Yaşar

Turkish Journal of Agriculture and Forestry

This study was carried out from 1991 to 1993, in Van province (Erciş, Edremit, Gevaş), which aimed to find out the population fluctations, some biological characteristics and natural enemies of L. ulmi and P. bituberculatum harmfull to apple trees. Samples were collected periodically every 15 day from 7 trees (Starting variety) in every orchard determined in Gevaş, Edremit and Erciş. All the biological stages, either alive or death, of pests, parasitized individuals and natural enemies were counted on the branches or leaves infested. According to the results obtained, it was determined that L. ulmi and P. bituberculatum overwintered as egg …

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Investigations On The Biology And Control Of Aurigena Chlorana (Lap. Et Gory) (Coleoptera:Buprestidae) Harmful To Oil Roses In Isparta Province (Turkey), Huri̇ye Zeki̇, Ali̇ Tamer, Kezi̇ban Şule Örmeci̇, Mustafa Çeti̇n Bozkir, Seval Toros Jan 1999

Investigations On The Biology And Control Of Aurigena Chlorana (Lap. Et Gory) (Coleoptera:Buprestidae) Harmful To Oil Roses In Isparta Province (Turkey), Huri̇ye Zeki̇, Ali̇ Tamer, Kezi̇ban Şule Örmeci̇, Mustafa Çeti̇n Bozkir, Seval Toros

Turkish Journal of Agriculture and Forestry

In this study, biology and control of Aurigena chlorana (Lap. et Gory) (Col.: Buprestidae) which is the most and new harmful on oil roses were investigated in Isparta province. The study has been carried out two temperatures 26±1 o C, 33±1 o C , %65±5 R.H. and 18 hours photoperiod on Rosa damascena Miller. The females laid the average 2371 eggs. The females and males lived for average 96.89, 112.83 days, respectively at 26±1 o C. It was found out that the duration of egg incubation was shorten depending on temperature and this duration was the average 37.94, 22.89 days …

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Prediction Forecasting Of The Papers Used In Turkey, Erdoğan Gavcar, Seli̇m Şen, Alper Ayteki̇n Jan 1999

Prediction Forecasting Of The Papers Used In Turkey, Erdoğan Gavcar, Seli̇m Şen, Alper Ayteki̇n

Turkish Journal of Agriculture and Forestry

In this study, rexuirement assumption of 8 different sort of paper used in our country is aimed to be done. Factors that can affect paper consumption are considered as variety of wholesale price indexes in paper products and printing industry, import, export, gross national product and population. As it is known, that requirement predictions are carried out by SEKA, too. But, SEKA take into account only population in the prediction. In calculations, multiple regression and correlation methods are used. As a result, it is shown that besides population other factors could affect the prediction and prediction for the paper-cartoon were …

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The Effect Of Different Seed Rates On Yield And Yield Components Of Two Soybean ( Glycine Max. (L.) Merill) Varieties In Kahramanmaras Conditions, H. Ahmet Yilmaz Jan 1999

The Effect Of Different Seed Rates On Yield And Yield Components Of Two Soybean ( Glycine Max. (L.) Merill) Varieties In Kahramanmaras Conditions, H. Ahmet Yilmaz

Turkish Journal of Agriculture and Forestry

This study was carried out in Kahramanmaras ecological condition in 1994 and 1995. In this study soybean cv "P. 9442" and "AP 240" were planted at 50, 60 and 70 cm row spaces, and 3, 5 and 7 cm intrarow seed spaces, and the effects of sowing densities on yield and yield components were investigated. The effects of row spaces on numberof branches per plant and, 100 seed weigth, yield per da, and kernel ratio, were significant in both years , on plant height, branche number per plant and yield per da were significant in both years, on branch number …

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Obtention Of In Vitro Haploid Plants From In Situ Induced Haploid Embryos In Cucumber(Cucumis Sativus L.), Gülat Çağlar, Kazim Abak Jan 1999

Obtention Of In Vitro Haploid Plants From In Situ Induced Haploid Embryos In Cucumber(Cucumis Sativus L.), Gülat Çağlar, Kazim Abak

Turkish Journal of Agriculture and Forestry

In this study the obtention of in vitro haploid plants from haploid embryos induced by pollination with irradiated pollen was investigated. The haploid embryos of four cucumber genotypes obtained in different season of the year were cultured on the E20A medium under aseptic condition in 1992-1994. The percentage of embryos that turned into plantlets, duration needed for plant formation, and in situ plantlet development were investigated. Also, the micropropagation possibility with clonning and propagation coefficient of plantlets were determined. The ability of embryos at advanced-stages to form plants was found to be higher (60 % in the first year and …

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