2002, Volume: 8, Number: 4
Contents
 
İPTAŞ, S., A. ÖZ and A. BOZ, The Growing Possibilities of Silage Maize as First Crop in Tokat-Kazova Conditions Abstract
İPEK, A. and C. S. SEVİMAY, Effects of Nitrogenous Fertilization on Forage Yield and Yield Components of Garden Burnet (Sanguisorba minor Scop Abstract
ELİBOL, O., S. AKTAN and M. TÜRKOĞLU, Effects of Different Lighting Regimes in Different Seasons on Broiler Performance Abstract
ÜLGENTÜRK, S. A New Record for the Turkish Fauna, Pulvinariella mesembranthemi (Vallot) (Homoptera: Coccoidea) Abstract
AKÇORA, A. Interaction Between C:N Ratio in Sakaryabaşı (Çifteler-Eşkişehir) West Pond's Sediment and Pond's Trophic Level Abstract
KESKİN, S. and M. MENDEŞ, Comparison the Power of the Test of One-Way ANOVA Method and Some Approximation Tests for the Samples Drawn from the Exponential Distributed Population Abstract
KAYA, D. M., C. Y. ÇİFTÇİ and M. KAYA, The Effects of Rhizobium Inoculation and Nitrogen Doses on Yield and Yield Components in Pea (Pisum sativum L.) Abstract
DELLAL, G., M. KOSER, A. M. TATAR, N. TEKEL and İ. BARITCI, The Phenotypic Parameters of Some Physical Wool Chracteristics and First Shearing Body Weights of Ile de France (IF) x White Karaman (WK) (B1) Female Yearlings Abstract
ERZURUM, K. and S. MADEN, Verticillium Wilt on Melons in Central Anatolia Region in Turkey Abstract
VATANDAŞ, M. A Comparative Model Study for Estimation of PTO Power in Standard Tractors Abstract
ŞENOL, E. and İ. GÖKNUR DURSUN, Determination of Operating Characteristics of Threshing Units with Valse and Drum-Concave with Rasp Bar in Chickpea Threshing Abstract
İLBAY, E. M. The Research on the Usage of Vegetable Waste for Pleurotus sajor-caju Mushroom Production Abstract
SELLİ, S., T. CABAROĞLU, A. CANBAŞ, H. ERTEN and C. NURGEL, Free and Bound Aroma Compounds of Kalecik Karası Must Abstract
KORKMAZ, S. and KORKMAZ, A. Ş., A Research on Seasonal Composition of Zooplankton in Beytepe Reservoir Abstract
GÜNDÜZ, S. and N. AKPINAR, A Research on the Determination of Recreational Carrying Capacity of Beynam Forest in the Frame of Protection and Land Use Principles
Abstract
 
Abstracts
 

2002, 8 (4) 267-273
The Growing Possibilities of Silage Maize as First Crop in Tokat Kazova Conditions
(Turkish)

Selahattin İPTAŞ1, Ahmet ÖZ2 and Ahmet BOZ3
Gaziosmanpaşa University, Faculty of Agriculture, Department of Agronomy-Tokat
Blacksea Agricultural Research Institute-Samsun
Master of Science in Agricultural Engineering

This study was conducted to determine the corn cultivars growing for silage production as first crop in between 1996, 1997 and 1998 years in Kazova-Tokat condition. 13 corn cultivars from different sources were used in these trials. In the research, plant height, plant composition (% leaf, stem and ear or head ratio), fodder yield and dry matter yield were investigated. The results of variance analyses showed statistically significant differences among cultivars for all characters. The highest green herbage yield (8799.3 kg/da) and dry matter yield (2369.5 kg/da) were obtained from Arifiye. Plant height, leaf ratio, stem ratio and ear ratio of varieties varied between 226.9-258.3 cm, 15.3-21.2 %, 39.3-50.1 % and 32.9-42.0 %, respectively. The lowest ear yield (2159.8 kg/da) was obtained from LG-55 cultivars while, the highest ear yield (3428.3 kg/da) was obtained from Arifiye.

Key words: first crop, maize varieties, agronomical characters


top

2002, 8 (4) 274-279
Effects of Nitrogenous Fertilization on Forage Yield and Yield Components of Garden Burnet (Sanguisorba minor Scop.)
(Turkish)

Arif İPEK and Cafer Sırrı SEVİMAY
Ankara University, Faculty of Agriculture, Department of Agronomy-Ankara

This study was carried out at the experimental field of the Deparment of Field Crops, Faculty of Agriculture of the University of Ankara in split plots of randomized blocks in 1998-1999. Three different burnet cultivars (Bünyan 80, Altınova and Gözlü) were used as material and three nitrogen doses (0, 4 and 8 kgN/da) were applied in the study. According to the results of the study; green yield, hay yield and crude protein yield were ranged between 2050-2394 kg/da, 443.8-504.1 kg/da and 52.21-81.98 kg/da, respectively in 1998. Moreover; green yield, hay yield and crude protein yield were changed between 1631-1951 kg/da, 372.1-437.5 kg/da and 44.43-72.97 kg/da, respectively in 1999. The highest green, hay and crude protein yield were obtained from Bünyan 80 cultivar with 8 kg/da nitrogen applications.

Key Words : burnet, nitrogen doses, green yield, hay yield and crude protein yield

top

2002, 8 (4) 280-284
Effects of Different Lighting Regimes in Different Seasons on Broiler Performance
(Turkish)

Okan ELİBOL1, Sedat AKTAN2 and Mesut TÜRKOĞLU1
Ankara University, Faculty of Agriculture, Department of Animal Science-Ankara
Süleyman Demirel University, Faculty of Agriculture, Department of Animal Science-Isparta

This study was conducted to determine the restricted light in curtain-sided poultry houses on broiler performances in two different seasons. The first trial was conducted in july-august (summer) and the second trial was undertaken in october- november (fall). In the first 7 days, lighting schedules was 23 h light in all groups. Groups were constituted as follows: continuous lighting between 7 to 42 days (1), natural day length between 7 to 42 days (2), continuous lighting between 7 to 21 days, following natural day length up to 42 days (3) and natural day length between 7 to 21 days, following continuous lighting up to 42 days (4). It was observed that best results were obtained from group 1 and 4 in Trial 1, but there were no statistically significant differences between groups in Trial 2. As a results of these experimental findings, it is concluded that it is detrimental effect to use a restricted lighting schedule in Summer time as high temperature may prevent to feed consumption however it is possible to use a restricted lighting schedule in Fall.

Key Words: broiler, lighting, performance

top

2002, 8 (4) 285-288
A New Record for the Turkish Fauna, Pulvinariella mesembranthemi (Vallot) (Homoptera: Coccoidea)
(Turkish)

Selma ÜLGENTÜRK
Ankara University, Faculty of Agriculture, Department of Plant Protection

It was recorded as Pulvinariella mesembryanthemi (Vallot) on Carpobrotus aciniformis L. and Aptenia cordifolia L. F. in Muğla, Turkey. Some important morphological characters examined and take to photographs under the scanning electron microscope and light microscope. Information of their host plants, distribution and biology are given. P. mesembryanthemi is new record for Turkish fauna.

Key Words: Pulvinariella mesembranthemi, Coccidae, iceplant, Muğla, Turkey

top

2002, 8 (4) 289-292
Interaction Between C:N Ratio in Sakaryabaşı (Çifteler-Eskişehir) West Pond's Sediment and Pond's Trophic Level
(Turkish)

Akasya AKÇORA
Ankara University, Department of Fisheries and Aquaculture-Ankara

This study was conducted in West Pond which supplies water to the Sakaryabaşı Fish Culture and Research Station. Nitrogen levels taken from sediment samples were determined from the station in the littoral zone of the pond in 2000 (july, october), 2001 (january, april). Pond's sediment has a high nitrogen level (0,51-0,85 %). Carbon content of the sediment (7,78-3,64 %) was determined and the effect of C:N ratio on the ponds trophic level was also investigated.

Key Words: Sakaryabaşı West Pond, nitrogen, carbon, sediment

top

2002, 8 (4) 293-299
Comparison the Power of the Test of One-Way ANOVA Method and Some Approximation Tests for the Samples Drawn from the Exponential Distributed Population
(Turkish)

Sıddık KESKİN1 and Mehmet MENDEŞ2
Ankara University, Faculty of Agriculture, Deparmtment of Animal Science-Ankara
Ankara University, Çankırı Orman Faculty of Agriculture-Çankırı

The present simulation study has been done to compare empirically the power of the ANOVA method, some other approximation tests (Marascuilo, Jame's second -order and Alexander Govern tests) for the samples drawn from exponential (1.00) distribution under the variances homogeneous or heterogeneous. In the study, the number of groups, including observation numbers varied from 3 to 100 observations was determined as 4 and 5. First, it was assumed that variances of the groups were homogen, then the ratio of variance heterogeneity was increased to seventeen times. Differences between group means (d) were considered as 0.5, 1.0, 1.5 and 2.0 standart deviation. Power of the ANOVA method and the aproximation tests were obtained from 100,000 simulation trials for each combination. As a result, it appears that there is no considerable differences among all tests in terms of the power of the test under variance homogeneity. However, power of the test is affected by sample size, balanced or unbalanced design and differences between group means under variance heterogeneity.

Key Words: exponential distribution, ANOVA method, Approximation tests, simulation, power of test


top

2002, 8 (4) 300-305
The Effects of Rhizobium Inoculation and Nitrogen Doses on Yield and Yield Components in Pea (Pisum sativum L.)
(Turkish)

M. Demir KAYA1, Cemalettin Y. ÇİFTÇİ1 and Muharrem KAYA2
Ankara University, Faculty of Agriculture, Department of Agronomy-Ankara
Süleyman Demirel University, Faculty of Agriculture, Department of Agronomy-Isparta

The effects of different inoculation methods (control, seed and soil inoculation) and nitrogen doses (0, 2, 4 and 6 kgN/da) on yield and yield components of peas were determined in this research which was carried out at Experimental Research Farm, Faculty of Agriculture, University of Ankara in 1998. The variety of peas named Karina was used as seed material and also Rhizobium leguminosarum and Ammonium nitrate (%33 N) were applied as inoculant and fertilizer, respectively. According to the results of this research; inoculation methods and nitrogen doses caused significant differences, but differences determined for harvest index were not found significant. Nodules were large and a few around main root on the plants receiving seed inoculation while they were smaller but in high numbers on main and lateral roots formed on the plants of soil inoculated plots. In the research, although 6 kg N/da application showed higher values than the other doses, it was observed that seed inoculation and 2-4 kg N/da fertilizer application gave better values than other applications in terms of nodulation, seed yield and environment.

Key Words: peas (Pisum sativum L.), inoculation methods, nitrogen doses, yield components, interaction

 

top

2002, 8 (4) 306-309
The Phenotypic Parameters of Some Physical Wool Characteristics and First Shearing Body Weights of Ile de France (IF) x White Karaman (WK) (B1) Female Yearlings
(Turkish)

Gürsel DELLAL1, Müge KOSER1, A .Murat TATAR1, Nihat TEKEL2 and İlkay BARITCI2
Ankara University, Faclty of Agricultre, Departmant of Agronomy-Ankara
Dicle University, Faclty of Agricultre, Departmant of Agronomy-Diyarbakır
Gaziosmanpaşa University, Faclty of Agricultre, Departmant of Agronomy-Tokat

This research was carried out on Ile de France (IF) x White Karaman (WK) (B1) female yearlings. It was found that the effects of shearing age on medullated fiber diameter, dam weight on staple length, first shearing body weight on shearing wool weight, wool weight on fiber diameter, true fiber length and clean wool yield and the effect of birth weight on first shearing weight were significant. The least-squares means of yearling weight, first shearing fleece weight, fiber diameter, staple length, true fiber length, breaking strength, elasticity, clean wool yield, medullated fiber rate and medullated fiber diameter were calculated as 56.5±0.83 kg, 3.1±0.10 kg, 26.5±0.27 micron, 7.1±0.20 cm, 4.8±1.23 cm, 7.8±0.49 g, 24.5±0.97%, 55.2±1.20%, 0.4±0.006% and 38.1±0.08 micron, respectively. According to findings, it was concluded that the wool of IF x WK (B1) female yearlings could be used in the textile and carpet industry.

Key Words: Ile de France x White Karaman (B1) female yearling, first shearing weight, wool physical characteristics, phenotypic parameters

top

2002, 8 (4) 310-312
Verticillium Wilt on Melons in Central Anatolia Region in Turkey
(Turkish)

Kudret ERZURUM and Salih MADEN
Ankara University, Faculty of Agriculture, Department of Plant Protection-Ankara

Pathogenicity of 7 of 40 Verticillium dahliae isolates obtained from wilted melon plants collected from Ankara, Çankırı, Kırıkkale and Konya provinces were tested. In the pathogenicity tests; conidial suspension of the pathogen was prepared and plants were inoculated by root dip technique. Disease evaluation was made after 45 days from inoculation. Different Verticillium dahliae isolates caused varying rates of disease between 35.5 % and 66.7 %. Most of the isolates caused yellowing and wilting of the plants, but complete death was observed rarely.

Key Words: melon, Verticillium dahliae, wilt disease

top

2002, 8 (4) 313-319
A Comparative Model Study for Estimation of PTO Power in Standard Tractors
(Turkish)

Mustafa VATANDAŞ
Ankara University, Faculty of Agriculture, Department of Soil Science-Ankara

In this study, an analytical model (M2) was developed for estimation of PTO power by indirect method in standard tractors. Performance of this model was compared with Sumner et al's (1986) model (M1) to estimating of PTO power. Model equation of M1 is PTO power = f [Fuel consumption, (Fuel consumption)2] and model equation of M2 is PTO power = f (Engine speed, Fuel consumption). OECD Standard Test data of 19 standard tractors were used for model development and analysis that these tractors use in Turkey. Mathematical and statistical methods were used to fitting and analysing of models. Results showed that, M2 model outputs were closer to experimental values than M1 model outputs for estimation of PTO power.

Key Words: standard tractor, PTO power, model analysis

top

2002, 8 (4) 329-332
The Research on the Usage of Vegetable Waste for Pleurotus sajor-caju Mushroom Production
(Turkish)

Ercan ŞENOL1 and İ. GÖKNUR DURSUN2
Master of Science in Agricultural Engineering
Ankara University, Faculty of Agriculture, Department of Agricultural Machinery-Ankara

The aim of this research is to determine the usage of vegetable waste on Pleurotus sajor-caju mushroom production. In the experiments, vegetable waste is used not only as substrate but also supplementation to wheat straw. The highest, yield were obtained as 42.73% BE at supplementation rate 10:2. With the increase of the rate of vegetable waste in the media, decreasing yield was obtained as 20.87% BE, when vegetable waste is used as substrate. The results of this research showed that while vegetable waste can not be used as substrate directly for Pleurotus sajor-caju mushroom production, it has high value as supplementation to the growing media.

Key Words: mushroom, Pleurotus sajor-caju, vegetable waste

top

2002, 8 (4) 333-337
Free and Bound Aroma Compounds of Kalecik Karası Must
(Turkish)

Serkan SELLİ, Turgut CABAROĞLU, Ahmet CANBAŞ, Hüseyin ERTEN and Canan NURGEL
Ankara University, Department of Food Engineering-Adana

In this study, free and bound aroma compounds of Kalecik Karası musts were determined during 1998 and 1999 vintages. Free aroma compounds were extracted with dichloromethane and bounds compounds with Amberlite XAD-2 resine. Aroma compounds were analysed by gas chromatography, and identified by gas chromatography-mass spectrometry (GC-MS). A total of 14 free aroma compounds including 4 compounds with six-carbon compounds, 4 higher alcohols, 1 ester, 5 volatile acids, and 19 bound compounds which are 3 compounds with six-carbon compounds, 2 terpenols, 7 higher alcohols, 2 esters and 5 volatile acids were identified in 1998 must. A total of 18 free aroma compounds including 4 six-carbon compounds, 1 terpenol, 4 higher alcohols, 4 esters, 5 volatile acids, and 18 bound aroma compounds which are 3 six-carbon compounds, 2 terpenols, 6 higher alcohols, 2 esters ve 5 volatile acids were identified in 1999 must.

Key Words: Kalecik Karası, must, aroma compounds, extraction

top

2002, 8 (4) 338-343
A Research on Seasonal Composition of Zooplankton in Beytepe Reservoir
(Turkish)

Sibel KORMAZ and A. Şeref KORKMAZ
Ankara University, Department of Fisheries and Aquaculture-Ankara

In this study, seasonal composition and average abundance of zooplanktons in Beytepe Reservoir (Ankara) were investigated. Zooplankton samples were collected seasonally during the period of July 1998-May 1999. In this samples, were identified 9 genus (namely belong to 8 family as 1 genus (Cyclops) belong to Copepoda group and 3 genus (Bosmina, Daphnia ve Ceriodaphnia) belong to Cladocera group, 5 genus (Ascomorpha, Polyarthra, Keratella, Lecane ve Testudinella) belong to Rotifera group. Mean abundance values for Rotifera, Cladocera and Copepoda were found to vary between 4.2±0.66 No/l, 17.6±2.40 No/l for Rotifera, between 5.2±0.80 No/l and 40.8±7.75 No/l for Clodocera and between 3.0±0.45 No/l and 13.0±0.71 No/l for Copepoda, respectively depending on the seasons. Total abundance according to seasons were determined to vary between 16.4±1.50 No/l and 54.2±8.31 No/l. Total zooplankton abundance was determined to be maximum in summer. All three zooplankton groups were observed to represent in all sesaonally collected samples. Maximum average abundance values according to zooplankton genus were determined to be 15.2±2.42 No/l for Ascomorpha belong to Rotifera group, 26.2±6.83 No/l for Ceriodaphnia belong to Cladocera group and 9.2±2.03 No/l for Cyclops belong to Copepoda group.

Key Words: Beytepe Reservoir, zooplankton composition and abundance, Rotifera, Cladocera, Copepoda

 

top

2002, 8 (4) 344-351
A Research on the Determination of Recreational Carrying Capacity of Beynam Forest in the Frame of Protection and Land Use Principles
(Turkish)

Sultan Gündüz1 and Nevin AKPINAR2
Ankara University Kalecik Meslek Yüksekokulu-Ankara
Ankara University, Faculty of Agriculture, Department of Landscape Architecture-Ankara

This research aims to enable the sustainable development in Beynam Protection Forest which shows the characteristics of a relic forest locating within the close vicinity of Ankara via using the instrument of determination of recreational carrying capacity. In this context, the study begins with the elaboration of the concepts of protection and land-use, recreational development and carrying capacity. One of the elementary phases of the study includes the researches on the natural characteristics of the site, the means of transportation, the facilities conducted in the forest recreational area and the situation of the site within the existing legal framework along with the comparisons between the previously prepared land-use plan and the existing land-use practices. In the light of these researches, the method of "Ground Cover Index" is used in the case of Beynam Forest to determine its carrying capacity. The study results with the evaluation that the sustainable development concept in Beynam Forest is hardly to be achieved and it is required to conduct special efforts to protect and improve the ecological existence of the site. As a conclusion, the measures to be taken and the proposals are set forth to enable sustainable development, especially in the daily used parts of Beynam Forest.

Key Words: Beynam, protection forest, recreation, carrying capacity

top

2002, 8 (3) 261-265
Interaction of Calcium-Phosphate in Sakaryabaşı (Çifteler-Eskişehir) West Pond
(Turkish)

Serap PULATSÜ
Ankara University Department of Fisheries and Aquaculture-Ankara

This research was carried out in West Pond which supplies water to the Sakaryabaşı Fish Culture and Research Station. Calcium levels were determined in water and sediment samples taken from the station in the hard water eutrophic pond in 2000 (july, october), 2001 (january, april). Pond's sediment had a high calcium level (276,23-297,67 µgg-1 dw) and pond water calcium concentrations (59,75-80,25 mg l-1) were higher than overlying and porewater calcium. The lower level of total filtrable orthophosphate in pond water than that of porewater could be explained by coprecipitation of phosphate with calcium. The effects of pH and water temperature on the exchange of phosphorus between water and sediment were also discussed.

Key Words: Sakaryabaşı West Pond, calcium, total filtrable orthophosphate, sediment, pH


top