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Full-Text Articles in Life Sciences
Effect Of Irrigation On Processing Tomato Yield And Antioxidant Components, Lajos Helyes, Andrea Lugasi, Zoltán Pék
Effect Of Irrigation On Processing Tomato Yield And Antioxidant Components, Lajos Helyes, Andrea Lugasi, Zoltán Pék
Turkish Journal of Agriculture and Forestry
A 2-year (2007 and 2008) open-field experiment was conducted to study the effects of irrigation on the yield parameters and main antioxidant components (lycopene, phenolic compounds, and ascorbic acid) of processing tomato. Two different treatments were applied: some plants were regularly irrigated, and some had their irrigation cut off 30 days before harvest. Both groups were compared with a rainfed control. Daily irrigation volume was calculated from the average daily temperature to reach optimum water supply. Fruits were harvested at the red-ripe maturity stage. The irrigated plants gave a significantly higher yield, and rainfed plants showed a yield loss. Irrigation …
Effect Of Sowing Time On Grain Yield, Oil Content, And Fatty Acids In Rapeseed (Brassica Napus Subsp. Oleifera), Hakan Turhan, Muhammet Kemal Gül, Cem Ömer Egesel, Fati̇h Kahriman
Effect Of Sowing Time On Grain Yield, Oil Content, And Fatty Acids In Rapeseed (Brassica Napus Subsp. Oleifera), Hakan Turhan, Muhammet Kemal Gül, Cem Ömer Egesel, Fati̇h Kahriman
Turkish Journal of Agriculture and Forestry
Sowing time is an important factor affecting crop yield and quality, especially in arid and semi-arid regions. The aim of this research was to investigate the effects of sowing time on the growth, yield, and quality of rapeseed genotypes and to determine genotype × sowing time interactions for grain yield and its related traits. The study was carried out using 8 winter rapeseed genotypes (H604049, H604038, H604041, Viking, Elan, Titan, Lorenz, and Trabant) and 4 sowing times (10 October, 20 October, 30 October and 10 November) during the 2005-2006 and 2006-2007 growing seasons. An NIRS system was used to determine …
Neutral Sulfite Semi-Chemical Pulping Of Rapeseed Residues, Mohammad Ahmadi, Ahmad Jahan Latibari, Mehdi Faezipour, Sahab Hedjazi
Neutral Sulfite Semi-Chemical Pulping Of Rapeseed Residues, Mohammad Ahmadi, Ahmad Jahan Latibari, Mehdi Faezipour, Sahab Hedjazi
Turkish Journal of Agriculture and Forestry
Neutral sulfite semi-chemical (NSSC) pulping of rapeseed residues from Karadj rapeseed growing fields was investigated. Rapeseed residue was collected from the research field at the Agriculture and Natural Resources Campus, University of Tehran located in Karadj. Cellulose, lignin, holocellulose, extractives soluble in alcohol acetone, 1% NaOH solubility, and ash were determined as 42 ± 2%, 17 ± 1%, 77.5 ± 2%, 2.2 ± 0.1%, 50.3 ± 1.6%, and 6%, respectively. Fiber length, width, and cell wall thickness were measured as 1.190 mm, 32 \mum, and 4 \mum. Three pulping durations of 20, 40, and 60 min and 5 chemical charges …
Effects Of Different Irrigation Programs On The Growth, Yield, And Fruit Quality Of Drip-Irrigated Melon, Osman Yildirim, Ni̇lgün Halloran, Şeyda Çavuşoğlu, Nesli̇han Şengül
Effects Of Different Irrigation Programs On The Growth, Yield, And Fruit Quality Of Drip-Irrigated Melon, Osman Yildirim, Ni̇lgün Halloran, Şeyda Çavuşoğlu, Nesli̇han Şengül
Turkish Journal of Agriculture and Forestry
A field study was conducted in Ankara, a semi-arid region of Central Anatolia, Turkey, on clay-loamy soils in the vegetation seasons of 2005 and 2006. Kırkağaç melon cultivar (Cucumis melo L. cv. Kırkağaç) was irrigated by the drip method from transplantation to the beginning of the flowering (IS_f), fruit setting (IS_{fs}), ripening (IS_r), and harvesting (IS_h) periods. Water amounting to 50% (P_{50}), 75% (P_{75}), and 100% (P_{100}) of full irrigation water were applied. Some analyses were carried out regarding the growth, yield, and fruit quality parameters in these irrigation programs. Moreover, the amount of water, the seasonal evapotranspiration, and the …
Selection For Test Weight And Kernel Weight In High Yielding Wheat Using A Safety-First Index, Emre İlker, Meti̇n Altinbaş, Muzaffer Tosun
Selection For Test Weight And Kernel Weight In High Yielding Wheat Using A Safety-First Index, Emre İlker, Meti̇n Altinbaş, Muzaffer Tosun
Turkish Journal of Agriculture and Forestry
Five breeding lines and 4 cultivars were grown in replicated trials at 1 location in 1999-2000 and 2 locations in 2000-2001 cropping seasons in İzmir in order to determine the usefulness of a safety-first selection index in making selection among high yielding wheat genotypes for test weight and thousand-kernel weight. Genotype × environment interactions were significant for these 2 quality traits. The regression coefficient (b_i) of genotypes, variance (Si_i^2) of a genotype across environments, and a safety-first index (I_i) were calculated to evaluate the stability of genotypes for test weight and thousand-kernel weights. Wheat genotypes with lower bi values and …
Effects Of Potassium, Magnesium, And Sulphur Containing Fertilizers On Yield And Quality Of Sugar Beets (Beta Vulgaris L.), Mehmet Zengi̇n, Fatma Gökmen, M. Ati̇lla Yazici, Sai̇t Gezgi̇n
Effects Of Potassium, Magnesium, And Sulphur Containing Fertilizers On Yield And Quality Of Sugar Beets (Beta Vulgaris L.), Mehmet Zengi̇n, Fatma Gökmen, M. Ati̇lla Yazici, Sai̇t Gezgi̇n
Turkish Journal of Agriculture and Forestry
Effects of potassium (K), magnesium (Mg), and sulphur (S) containing fertilizers on root yield, refined sugar yield, and K, Mg, and S concentrations of leaf of sugar beet (Beta vulgaris L.) were studied on 3 different locations in Konya province, namely Kuzucu, Karaarslan, and Alakova, in 2004, 2005, and 2006. In the trails, a uniform diammonium phosphate (DAP) + urea application was used as the control treatment, while potassium sulphate and Mg containing Kalimagnesia, were applied at varying rate combinations. Compared to the control treatment (DAP + urea), all fertilizer treatments containing K, Mg, and S increased root yield in …
Response Of Silage Maize (Zea Mays L.) To Nitrogen Fertilizer After Different Crops In A Semi Arid Environment, İsmai̇l Gül, Mehmet Yildirim, Cuma Akinci, İlhan Doran, Hasan Kiliç
Response Of Silage Maize (Zea Mays L.) To Nitrogen Fertilizer After Different Crops In A Semi Arid Environment, İsmai̇l Gül, Mehmet Yildirim, Cuma Akinci, İlhan Doran, Hasan Kiliç
Turkish Journal of Agriculture and Forestry
The use of legume crops in maize rotation systems may decrease the need for nitrogen (N) fertilization and increase total output. The effect of previous crops (wheat, barley, lentil, Hungarian vetch, and fallow) and different N fertilization rates (0, 120, 160, 200, and 240 kg of N ha^{-1}) on yield and N content of silage maize (Zea mays L.) were evaluated under irrigated conditions in Diyarbakır, Turkey, during the 1999-2000, 2000-2001, and 2001-2002 growing seasons. Dry matter yield varied between 10,068.2 and 16,480.4 kg ha^{-1}. It was determined that Hungarian vetch was a suitable rotation crop, and that 200 kg …
Effect Of Different Planting Dates On Yield And Yield Components Of Peanut (Arachis Hypogaea L.), Öner Canavar, Mustafa Ali̇ Kaynak
Effect Of Different Planting Dates On Yield And Yield Components Of Peanut (Arachis Hypogaea L.), Öner Canavar, Mustafa Ali̇ Kaynak
Turkish Journal of Agriculture and Forestry
This study was conducted in the experiment fields at the Field Crops Department of the Faculty of Agriculture at Adnan Menderes University in 2004-2005. The experiment was performed in a split-plot design with 3 replications. The goals of this study were to determine the appropriate planting date for peanut under the ecological conditions of Aydın and to investigate the effect of different planting dates on some agronomic traits, yield, and yield components of 3 commercial peanut cultivars (Gazipaşa, Florispan, and NC-7) and the local cultivar. It was determined that the planting date had a statistically significant effect on pod yield, …
Growth, Yield, And Quality Of Sweet Potato (Ipomoea Batatas (L.) Lam.) Cultivars In The Southeastern Anatolian And East Mediterranean Regions Of Turkey, Mehmet Emi̇n Çalişkan, Tahsi̇n Söğüt, Erkan Boydak, Eli̇f Ertürk, Hali̇s Arioğlu
Growth, Yield, And Quality Of Sweet Potato (Ipomoea Batatas (L.) Lam.) Cultivars In The Southeastern Anatolian And East Mediterranean Regions Of Turkey, Mehmet Emi̇n Çalişkan, Tahsi̇n Söğüt, Erkan Boydak, Eli̇f Ertürk, Hali̇s Arioğlu
Turkish Journal of Agriculture and Forestry
The study was carried out to determine the adaptation potential of sweet potato crops to different regions of Turkey. The study included 9 introduced genotypes of diverse origin and 2 local genotypes that were tested in 4 locations (Diyarbakır and Şanlıurfa representing the southeastern Anatolia region, and Adana and Hatay representing the Mediterranean region) in 2000 and 2001. Haulm and storage root growth of the cultivars were monitored at monthly intervals. Total and graded storage root yield, and some quality parameters were determined at the final harvest. Although haulm and storage growth varied according to location and year, all cultivars …
Effect Of Wild Oat (Avena Fatua L.) Population And Nitrogen Levels On Some Agronomic Traits Of Spring Wheat (Triticum Aestivum L.), Imtiaz Khan, Gul Hassan, Muhammad Ishfaq Khan, Meher Gul
Effect Of Wild Oat (Avena Fatua L.) Population And Nitrogen Levels On Some Agronomic Traits Of Spring Wheat (Triticum Aestivum L.), Imtiaz Khan, Gul Hassan, Muhammad Ishfaq Khan, Meher Gul
Turkish Journal of Agriculture and Forestry
A field experiment was conducted to determine the effect of wild oat (Avena fatua) densities on wheat (Triticum aestivum) yield, its components and protein content under varying nitrogen regimes, at the Agricultural Research Farm, North West Frontier Province Agricultural University, Peshawar, Pakistan, during winter 2004-5. The experiment comprised 3 nitrogen levels (75, 100, and 125 kg ha^{-1}) assigned to main plots and 5 wild oat densities (0, 10, 20, 30, and 40 plants m^{-2}) kept in sub-plots. The data were recorded on some agronomic and physiological parameters of wheat and wild oats. The statistical analyses of the data exhibited non-significant …
Influence Of Salinity On Growth And Yield Attributes In Chickpea Cultivars, Ranju Singla, Neera Garg
Influence Of Salinity On Growth And Yield Attributes In Chickpea Cultivars, Ranju Singla, Neera Garg
Turkish Journal of Agriculture and Forestry
Seeds of 4 cultivars of chickpea (2 desi, CSG 8962 and DCP 92-3, and 2 kabuli, CSG 9651 and BG 267) were grown under 0, 4, 6 and 8 dS m^{-1} levels of salinity until maturity. Shoot and root dry weights, root shoot ratio and various yield parameters were evaluated under salinity at 40, 70 and 100 days after sowing. Salinity significantly reduced dry matter accumulation in both roots and shoots in all cultivars, though declension was more pronounced in BG 267 (kabuli) and DCP 92-3 (desi). Root growth was more adversely affected than shoot growth, which also had an …
Interactive Effect Of Nitrogen And Boron On Cotton Yield And Fiber Quality, Özgül Görmüş
Interactive Effect Of Nitrogen And Boron On Cotton Yield And Fiber Quality, Özgül Görmüş
Turkish Journal of Agriculture and Forestry
This study aimed to determine the effect of application rates of N and B on cotton yield and fiber quality. Suregrow 125 (Gossypium hirsutum L.) was grown on a clay soil having an average 0.38 mg kg^{-1} B concentration. Analysis of leaf tissue taken at early bloom and before the nutrient application indicated that N and B concentrations were sufficient. Nitrogen was applied to the soil at rates of 0, 80 and 160 kg ha^{-1}, and B was applied to the foliage 3 times for totals of 0, 0.56 and 1.12 kg B ha^{-1}. Foliar-applied B significantly increased leaf blade …
Effects Of Different Water And Nitrogen Levels On The Yield And Periodicity Of Pistachio (Pistacia Vera L.), Mustafa Ünlü, Riza Kanber, Pasquale Steduto, Yusuf Aydin, Kenan Di̇ker
Effects Of Different Water And Nitrogen Levels On The Yield And Periodicity Of Pistachio (Pistacia Vera L.), Mustafa Ünlü, Riza Kanber, Pasquale Steduto, Yusuf Aydin, Kenan Di̇ker
Turkish Journal of Agriculture and Forestry
The effects of 2 irrigation intervals (I_{f1}: 7 days and I_{f2}: 14 days), 4 nitrogen doses (N_g, N_0, N_1, N_2 and N_3) and 2 crop coefficients (K_{pc1}: 0.60 and K_{pc2}: 0.90) on pistachio nut fertigation were studied to establish suitable irrigation and fertigation scheduling. The nitrogen levels were 0, 10, 15 and 20 mg L^{-1}. In the traditional treatment, N_g, each tree received 500/600/400 g of NPK fertilizer at the beginning of February. Other fertilizer doses were applied in the irrigation water through a drip system. Irrigation water amount was calculated based on Class A-Pan evaporation. Wetted percentage in each …
Determining Some Yield And Quality Characteristics Of Mutants Induced From A Durum Wheat (Triticum Durum Desf.) Cultivar, Mehmet Ali̇ Saki̇n, Ahmet Yildirim, Sabri̇ Gökmen
Determining Some Yield And Quality Characteristics Of Mutants Induced From A Durum Wheat (Triticum Durum Desf.) Cultivar, Mehmet Ali̇ Saki̇n, Ahmet Yildirim, Sabri̇ Gökmen
Turkish Journal of Agriculture and Forestry
Mutation breeding is one of the breeding methods used successfully in durum wheat for selecting lines with increased agronomic values. The aim of this study was to select mutant lines having a better agronomic potential than the mother variety Gediz-75 in the M_6 and M_7 generations. The mutants were derived from the variety Gediz-75 of durum wheat (Triticum durum Desf.). The seeds were either irradiated with gamma rays at Cobalt 60 (^{60}Co) or treated with ethyl-methane-sulfonate (EMS). Eighteen selected mutants and the mother variety Gediz-75 were examined in the M_6 and M_7 generations for yield and quality characteristics. The experiments …
Effects Of Seedling And Gf-31 Rootstocks On Yield And Fruit Quality Of Some Table Apricot Cultivars Grown In Mersin, Levent Son, Ali̇ Küden
Effects Of Seedling And Gf-31 Rootstocks On Yield And Fruit Quality Of Some Table Apricot Cultivars Grown In Mersin, Levent Son, Ali̇ Küden
Turkish Journal of Agriculture and Forestry
This experiment was conducted in Mut-Mersin between 1997 and 2001 to determine the effects of seedling and GF-31 rootstocks on the yield and quality of fruits of Tokaloğlu, Precoce De Tyrinthe, Joubert Foulon, Canino, Sakıt 6, Beliana, Priana and Early Kishnevski table apricot cultivars. Fruit yields were highest on apricot seedling rootstocks for all cultivars. Yields (kg tree^{-1}) ranged between 14.66 kg (Tokaloğlu) and 63.06 kg (Priana) on apricot seedling rootstocks and between 13.6 kg (Sakıt 6) and 41.13 kg (Priana) on Myrobalan GF-31 rootstock in 2001. Of the cultivars tested, Priana gave the highest yield (kg tree^{-1}), except in …
The Effects Of Sewage Sludge Applications On The Yield,Growth, Nutrition And Heavy Metal Accumulation In Apple Trees Growing In Dry Conditions, Mehmet Ali̇ Bozkurt, Tarik Yarilgaç
The Effects Of Sewage Sludge Applications On The Yield,Growth, Nutrition And Heavy Metal Accumulation In Apple Trees Growing In Dry Conditions, Mehmet Ali̇ Bozkurt, Tarik Yarilgaç
Turkish Journal of Agriculture and Forestry
The effects of various sewage sludge (biosolid) rates and a single dose barnyard manure application on the fruit yield, growth, nutrition and heavy metal accumulation of apple trees were investigated. The experiment was conducted using a completely randomized design with 4 replicates in dry conditions in Van, in the East Anatolia region of Turkey in 2000 and 2001. Sewage sludge was added to the soil at the rates of 0, 10, 20, 40 and 60 kg tree^{-1}. Barnyard manure was applied to the soil at a rate of 25 kg tree^{-1}. Two years' data showed that the addition of sewage …
Effects Of Plant Density And Number Of Shoots On Yield And Fruit Characteristics Of Peppers Grown In Glasshouses, H. Yildiz Daşgan, Kazim Abak
Effects Of Plant Density And Number Of Shoots On Yield And Fruit Characteristics Of Peppers Grown In Glasshouses, H. Yildiz Daşgan, Kazim Abak
Turkish Journal of Agriculture and Forestry
Plant density and pruning systems play a key role in the effective use of the area inside the greenhouse. Pepper (Capsicum annuum L.) cultivars, Amazon-long green and Balo bell-shape type, were grown in the winter cultivation period in a glasshouse. A constant space of 80 cm between rows with different within-row spacings (45 cm, 30 cm and 15 cm) and shoot numbers (between one and four shoots per plant) were applied to optimize plant density and number of shoots. Wider within-row spacing and higher shoot numbers per plant increased the number of leaves. However, the individual leaf blade area was …
Additive Main Effects And Multiplicative Interactions Analysis Of Yield Performances In Bread Wheat Genotypes Across Environments, Yüksel Kaya, Çeti̇n Palta, Seyfi̇ Taner
Additive Main Effects And Multiplicative Interactions Analysis Of Yield Performances In Bread Wheat Genotypes Across Environments, Yüksel Kaya, Çeti̇n Palta, Seyfi̇ Taner
Turkish Journal of Agriculture and Forestry
This study was carried out to determine the yield performances of 20 bread wheat genotypes across six environments in Central Anatolia, Turkey, in the 2000-2001 growing season. The experimental layout was a randomized complete block design with four replications. Additive main effects and multiplicative interactions analysis (AMMI) indicated that the yield performances of genotypes were under the major environmental effects of genotype by environmental interactions. The first two principal component axes (PCA 1 and 2) were significant (p < 0.01) and cumulatively contributed to 78.64% of the total genotype by environment interaction. A biplot generated using genotypic and environmental scores of the first two AMMI components also showed that genotypes with larger PCA 1 and lower PCA 2 scores gave high yields (stable genotypes), and genotypes with lower PCA 1 and larger PCA 2 scores had low yields (unstable genotypes), as in the sites tested.
Effects Of Girdling, Ga3 Applications And Additional Nutrient Applications On Fruit Yield, Fruit Set And Fruit Size In The Clementine Mandarin, Turgut Yeşi̇loğlu, Ebru Cücü Açikalin
Effects Of Girdling, Ga3 Applications And Additional Nutrient Applications On Fruit Yield, Fruit Set And Fruit Size In The Clementine Mandarin, Turgut Yeşi̇loğlu, Ebru Cücü Açikalin
Turkish Journal of Agriculture and Forestry
In small fruit species, like the mandarin, fruit size is lower in Turkey than in other countries and this has a negative effect on their marketing. There are problems with fruit yield and size in the Clementine mandarin, which is a commonly grown mandarin cultivar in Turkey. To solve these problems, various studies have been carried out. Girdling is one of the methods studied and it had positive effects on fruit yield and size without lowering the fruit quality. However, fruit yield and fruit size were reduced to previous levels if the treatment was repeated over a long period. In …
Selection Of Promising Jojoba (Simmondsia Chinensis Link Schneider) Types In Terms Of Yield And Oil Content, Sali̇h Ülger, Özgür Akdeşi̇r, İbrahi̇m Baktir
Selection Of Promising Jojoba (Simmondsia Chinensis Link Schneider) Types In Terms Of Yield And Oil Content, Sali̇h Ülger, Özgür Akdeşi̇r, İbrahi̇m Baktir
Turkish Journal of Agriculture and Forestry
This experiment was carried out to determine the yield and oil contents of jojoba populations that were derived from a base population raised from seed in Antalya between 1999 and 2001. In the first year 59 types were evaluated, and 19 promising types were determined. In the second and third years experiments were conducted on these 19 types. Chilling, insect and disease damage was not seen during the experiment periods. However, some plants were dead where water ponded after heavy rains. The mature seeds were hand collected after they fell onto the soil in September, and their yield and oil …
Effects Of Different Levels Of Nitrogen On Some Characters Of Datura Collected From Samsun Environs, Enver Esendal, Kudret Kevseroğlu, Seli̇m Aytaç, Gülen Özyazici
Effects Of Different Levels Of Nitrogen On Some Characters Of Datura Collected From Samsun Environs, Enver Esendal, Kudret Kevseroğlu, Seli̇m Aytaç, Gülen Özyazici
Turkish Journal of Agriculture and Forestry
Seeds of datura plants ( Datura stramonium L.) were collected from three different locations (Kurupelit, Vadiler Sitesi and Gelemen) and examined at different nitrogen levels (0, 50, 100, 150 and 200 kg N/ha) for two years (1993 and 1994) in the Kurupelit Campus area of O.M.U., Samsun, Black Sea coastal area. The field experiments were conducted in a split-plot randomized block design with three replications. The highest fresh and medicinal herb yields were obtained by application of 150 kg of nitrogen per hectare, and seed yield was increased by increased nitrogen application levels. Therefore, it may be necessary to test …