The aim of this study was to determine the main spermatological properties in Carasobarbus luteus (H., 1843) and Carassius carassius (L., 1758) in Atatürk Dam Lake. Sperm was collected by abdominal massage from thirty C. luteus and twenty C. carassius. Milt volume (ml), spermatozoa motility (%), motility duration (s), spermatozoa concentration (x109/ml) and pH in C. luteus and C. carassius were 0.72±0.08 ml and 1.03±0.20 ml, %57.67±3.67 and % 81.00±1.43, 190.30±11.25 s and 107.30±12.03 s, 13.15±1.33 and 10.53±1.28x109/ml, 8.13±0.11 and 7.60±0.04, respectively. The spermatozoa motility, motility duration, spermatozoa concentration and pH was found significant compared with fish species group.

The aim of this study was to evaluate the effect of choice feeding based on threonine on performance characteristics and carcass parameters of male broiler chicks. Day old, thirty Ross 308 male chicks were divided into two dietary treatment groups. In the experiment, choice feding did not affect on body weight gain, feed conversion ratio. Feed intake and carcass parameters significantly affected by experimental treatments.

Root-knot nematodes (Meloidogyne spp.) have specialized and complex relationships with their host plants. A better understanding of interaction between nematode and their host will help to provide new point of view for root-knot nematode management. For this purpose, recently investigations on cellular and molecular basis of root-knot nematode parasitism and host response were reviewed.

In Turkey, Chickpea is in the first rank in pulses and it is followed by lentil, bean and faba bean respectively. In the world, Turkey is one of the most important producer and exporting countries especially for chickpea and lentil. In recent years, Turkey’s chickpea and lentil production are in downvard trend. Our country has diverse ecological regions for growing many pulses species. Our production potential of pulses must be evaluated and a great importance must be given to the production of cultivars with high yield potential, quality and standart bigness seed. On the other hand, in Turkey, winter chickpea production in coastal region and winter lentil production in central Anatolion region must be widened. Pulses production must be done by using proper growing techniques. Sowing and harvesting should be done by machine. At the same time good war should be made against disease and insect for increasing yield potential of pulses. So, in Turkey, pulses plantation can be increased much more than nowdays.

In this study, Minneola Tangelo hybrid, a cross of grapefruit and mandarin (Duncan grapefruit x Dancy mandarin), used as interstock to Star Ruby grapefruit with different lengths. Effects of different interstock lengths on fruit yield and quality, plant development and photosynthetic parameters were investigated. According to the results, different interstock lengths significantly affected fruit yield and size. The highest fruit yield was determined in T-M20-S whereas the lowest was on T-M5-S. The highest fruit size were determined in Star Ruby fruits on T-M5-S and T-M40-S whereas the lowest on T-M20-S and T-S (control). T-M40-S and T-M20-S treatments markedly reduced stem diameter and tree canopy in comparison to other treatments and control. Usage of different interstock lengths did not significantly affected some of fruit quality traits, net photosynthetic rate, stomatal conductance, leaf transpiration rate, leaf water usage efficiency and leaf chlorophyll concentration. In regards to seasonal changes, net photosynthetic rate were higher in spring and summer seasons then winter and fall seasons.

In our study used wild leguminous plants (Medicago sativa, M. lupulina and M. varia ) Erzurum belongs to the high altitude (2000 - 2500m ) regions ( Palandöken mountain, Alibaba mountain, Turnagöl mountain, Hasanbaba mountain, Eğerli mountain, Yıldırım mountain, Çubuklu mountain, Deveboynu locality, Kayakyolu locality, Telsizler and Dumlu hill ) were collected during the months of June and July. Nodules were obtained from this plant were sterilized, YMA (Yeast Mannitol Agar) plates were streaked and petri dishes 28+1ºC were incubated for 3-5 days. Colonies appear after incubation typically constitute (white, clear or slightly opaque, mucosity, round, raised) 39 isolates were selected and transferred to tubes and refrigerated YMA were stored at +4ºC. In the next stage, cytological and biochemical analyzes of these isolates were studied to determine. For this purpose isolates; YMA containing bromothymol blue and congo red reproduction, gram stain reaction, movement and subjected to catalase and oxidase tests were evaluated. The cytological and biochemical analysis of results showed that 28 of 39 strains belonged to Rhizobium spp.

In our study used wild leguminous plants (Medicago sativa, M. lupulina and M. varia ) Erzurum belongs to the high altitude (2000 - 2500m ) regions ( Palandöken mountain, Alibaba mountain, Turnagöl mountain, Hasanbaba mountain, Eğerli mountain, Yıldırım mountain, Çubuklu mountain, Deveboynu locality, Kayakyolu locality, Telsizler and Dumlu hill ) were collected during the months of June and July. Nodules were obtained from this plant were sterilized, YMA (Yeast Mannitol Agar) plates were streaked and petri dishes 28+1ºC were incubated for 3-5 days. Colonies appear after incubation typically constitute (white, clear or slightly opaque, mucosity, round, raised) 39 isolates were selected and transferred to tubes and refrigerated YMA were stored at +4ºC. In the next stage, cytological and biochemical analyzes of these isolates were studied to determine. For this purpose isolates; YMA containing bromothymol blue and congo red reproduction, gram stain reaction, movement and subjected to catalase and oxidase tests were evaluated. The cytological and biochemical analysis of results showed that 28 of 39 strains belonged to Rhizobium spp.