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2006

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Articles 511 - 520 of 520

Full-Text Articles in Life Sciences

Examining Cost Of Gain In Kansas Feedlots (2006), A. Babcock, R. Jones, Michael R. Langemeier Jan 2006

Examining Cost Of Gain In Kansas Feedlots (2006), A. Babcock, R. Jones, Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

This study had three primary objectives: 1) to examine the effects that individual performance and ingredient price factors have on cost of gain; 2) to quantify the annual and/or seasonal trend in cost of gain in Kansas feedlots; and 3) to examine the difference in cost of gain between steers and heifers. For both steers and heifers, corn price was significant and positive, indicating that as the price of corn increases so does cost of gain. The price of hay, which is a feedstuff in the majority of feedlot diets, has a positive, but insignificant, effect on feeding cost of …

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Comparison Of Different Irrigation Methods Based On The Parametric Evaluation Approach, Orhan Dengi̇z Jan 2006

Comparison Of Different Irrigation Methods Based On The Parametric Evaluation Approach, Orhan Dengi̇z

Turkish Journal of Agriculture and Forestry

The main objective of this research is to compare two different irrigation methods according to parametric evaluation system in the Field Plants Central Research Institute-Ikizce Research Farm's soils located in southern Ankara. Soil properties of the study area including texture, depth, EC, drainage, carbonate content and slope were derived from a detailed soil map scaled 1/5000. After analyzing and evaluating soil properties using geographic information system techniques, gravity and drop irrigation suitability maps were generated. Results showed that 13.1% of the study area was highly suitable for surface and gravity irrigation methods, whereas 51.2% of the study area was highly …

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Effects Of Inoculation With Rhizobium On Seed Yield And Yield Components Of Common Vetch (Vicia Sativa L.), Sebahatti̇n Albayrak, Cafer Sirri Sevi̇may, Özgür Töngel Jan 2006

Effects Of Inoculation With Rhizobium On Seed Yield And Yield Components Of Common Vetch (Vicia Sativa L.), Sebahatti̇n Albayrak, Cafer Sirri Sevi̇may, Özgür Töngel

Turkish Journal of Agriculture and Forestry

The effects of inoculation with Rhizobium leguminosarum on seed yield and yield components of common vetch (Vicia sativa L.) were evaluated under Black Sea Coastal Region conditions, Turkey, in the 2001-2002 and 2002-2003 growing seasons using common vetch cultivars Kubilay, Ürem, Karaelçi, Uludağ, Emir, Çubuk and Nilüfer. The experiment was established as a split block design with 3 replications. Inoculation increased seed yield and all yield components of common vetch cultivars. It was observed that inoculated common vetch cultivars gave higher biological yield (8.5%), seed yield (7.6%), straw yield (10.4%), pod length (25.5%), number of seed per pod (16.2%), number …

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Use Of Corine Methodology To Assess Soil Erosion Risk In The Semi-Arid Area Of Beypazari, Ankara, İlhami̇ Bayrami̇n, Günay Erpul, Hakki Emrah Erdoğan Jan 2006

Use Of Corine Methodology To Assess Soil Erosion Risk In The Semi-Arid Area Of Beypazari, Ankara, İlhami̇ Bayrami̇n, Günay Erpul, Hakki Emrah Erdoğan

Turkish Journal of Agriculture and Forestry

Soil erosion is one of the major threats to the conservation of soil and water resources in the semi-arid and arid regions of Turkey. Therefore, there is a need to accurately assess soil erosion and accordingly determine the specific control activities adaptable to these conditions. Using the daily rainfall amounts recorded from 1958 to 2003 from 11 climate stations by the Turkish Meteorological Service in the semi-arid area of Beypazari, Ankara, Turkey, 5 different procedures of calculating the Modified Fournier Index (MFI) were performed to obtain the effect of rainfall variability and incidence of extreme storms on assessing 'Actual Soil …

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Co-Inoculation Effects Of Phosphate Solubilizing Microorganisms And Glomus Fasciculatum On Green Gram-Bradyrhizobium Symbiosis, Almas Zaidi, Mohammad Saghir Khan Jan 2006

Co-Inoculation Effects Of Phosphate Solubilizing Microorganisms And Glomus Fasciculatum On Green Gram-Bradyrhizobium Symbiosis, Almas Zaidi, Mohammad Saghir Khan

Turkish Journal of Agriculture and Forestry

Experiments were conducted to evaluate the effects of nitrogen fixing (Bradyrhizobium sp. (Vigna)), phosphate solubilizing bacterium (Bacillus subtilis), phosphate solubilizing fungus (Aspergillus awamori) and AM fungus (Glomus fasciculatum) on the growth, chlorophyll content, seed yield, nodulation, grain protein, and N and P uptake of green gram plants grown in phosphorus-deficient soils. The triple inoculation of AM fungus, Bradyrhizobium sp. (Vigna) and B. subtilis significantly increased dry matter yield, chlorophyll content in foliage and N and P uptake of green gram plants. Seed yield was enhanced by 24% following triple inoculation of Bradyrhizobium + G. fasciculatum + B. subtilis, relative to …

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Organic Acid Pulping Of Rice Straw. I: Cooking, M. Sarwar Jahan, Z. Z. Lee, Yongcan Jin Jan 2006

Organic Acid Pulping Of Rice Straw. I: Cooking, M. Sarwar Jahan, Z. Z. Lee, Yongcan Jin

Turkish Journal of Agriculture and Forestry

Acetic acid or formic acid treatment of rice straw with the variation of reaction variables, namely acid concentration, catalyst (HCl or H_2SO_4) concentration, reaction time, temperature and liquor ratio, was investigated to ascertain effects on the dissolution of hemicellulose, which facilitates the dissolution of lignin during alkaline extraction or peroxyacid treatment and improved the drainability of straw pulp. Maximum pentosan dissolution was observed in 80% acetic acid with 0.6% H_2SO_4 catalyst at 80 °C for 120 min. Acetic acid dissolved pentosan more slowly than formic acid. The catalytic activity of H_2SO_4 was higher than that of HCl with respect to …

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Effects Of Some Plant Materials On Phytophthora Blight (Phytophthora Capsici Leon.) Of Pepper, Fi̇kret Demi̇rci̇, F. Sara Dolar Jan 2006

Effects Of Some Plant Materials On Phytophthora Blight (Phytophthora Capsici Leon.) Of Pepper, Fi̇kret Demi̇rci̇, F. Sara Dolar

Turkish Journal of Agriculture and Forestry

Effects of dried garlic, peppermint, cabbage, lentil, alfalfa, onion, radish, and garden cress plant materials on Phytophthora blight (Phytophthora capsici Leon.) of pepper were determined, in both in vitro and in vivo conditions. Extracts of the plant materials were used in vitro. The plant materials were extracted in ethanol and were added to corn meal agar (CMA) at 5 and 10 µg ml^{-1}. The extracts of alfalfa, garlic, cabbage, and peppermint reduced colony diameter of P. capsici on corn meal agar between 3.46% and 13.73%, whereas mycelial growth of P. capsici was increased by onion, radish, garden cress, and lentil …

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Statistical Modeling Of The Effect Of Physio-Biochemical Parameters On Water Use Efficiency Of Grape Varieties, Rootstocks And Their Stionic Combinations Under Moisture Stress Conditions, Jogaiah Satisha, G. S. Prakash, R. Venugopalan Jan 2006

Statistical Modeling Of The Effect Of Physio-Biochemical Parameters On Water Use Efficiency Of Grape Varieties, Rootstocks And Their Stionic Combinations Under Moisture Stress Conditions, Jogaiah Satisha, G. S. Prakash, R. Venugopalan

Turkish Journal of Agriculture and Forestry

The effect of various physio-biochemical parameters on the water use efficiency (WUE) of grape varieties, rootstocks and budded vines was studied in 3 separate experiments at 3 levels of irrigation (100%, 50% and no irrigation) for 14 days of stress cycle. None of the varieties or rootstocks could survive beyond 4 days under the no irrigation treatment. Considerable genetic variability was observed for WUE with respect to photosynthetic rate, transpiration rate, stomatal conductance, root to shoot length ratio, abscisic acid, zeatin riboside, carbon isotope discrimination etc. among grape rootstocks, viz., Dogridge, 1613 C, Salt Creek, St. George and Vitis champinii …

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Preliminary Results On Genome Mapping Of An Italia X Mercan Grapevine Population, Zeli̇ha Gökbayrak, Cengi̇z Özer, Gökhan Söylemezoğlu Jan 2006

Preliminary Results On Genome Mapping Of An Italia X Mercan Grapevine Population, Zeli̇ha Gökbayrak, Cengi̇z Özer, Gökhan Söylemezoğlu

Turkish Journal of Agriculture and Forestry

This research was conducted to construct genetic linkage maps of Vitis (2n = 38) from grape populations (60 F_1 + 2 parents) of crossing of Italia and Mercan (Vitis vinifera L.) cultivars. RAPD reactions were performed using a total of 300 RAPD primers. The amplification products were scored from negatives as presence or absence. Only 59 loci for Italia and 55 loci for Mercan could be used for linkage analysis. Mapmaker/Exp.3.0 was used for genetic linkage analysis with multipoint ordering among markers at LOD >= 3.0 score. The map was developed by using the double pseudo-testcross mapping approach. Italia and …

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Comparative Characterization Of The Effects Of The Climate–Tree–Growth Relationship In Anatolian Black Pine (Pinus Nigra Arnold Subsp. Pallasiana (Lamb.) Holmboe) On Wood Treatability, İlker Usta Jan 2006

Comparative Characterization Of The Effects Of The Climate–Tree–Growth Relationship In Anatolian Black Pine (Pinus Nigra Arnold Subsp. Pallasiana (Lamb.) Holmboe) On Wood Treatability, İlker Usta

Turkish Journal of Agriculture and Forestry

The effects of the climate-tree-growth relationship on treatability were investigated in the Anatolian black pine (Pinus nigra Arnold subsp. pallasiana (Lamb.) Holmboe) based on the altitudinal locations at approximately 960 m (B1) and 1010 m (B2) in the former coniferous afforestation area in Beytepe, Ankara, Turkey. This was achieved by analysis of the 1º branches at 1, 2, and 3 m tree heights above ground level for the periods 82/98 (March 1982 to February 1998) and 98/04 (March 1998 to February 2004). It appeared that the climatic changes during the period 98/04 had a greater effect on the growth of …

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