tailieunhanh - The competitive ability of Avena spp. and Alopecurus myosuroides Huds. influenced by different wheat (Triticum aestivum) cultivars

Field experiments were conducted at Havza and Gelemen to evaluate the effect of different densities of Avena spp. and Alopecurus myosuroides Huds. on wheat cultivars Bezostaja and Kate-A-I. As expected the semi-dwarf cultivar Bezostaja was shorter than Kate-A-I in all weed densities, indicating that plant height was not correlated with competitiveness under the experimental conditions. | Turk J Agric For 28 (2004) 245-251 © TÜB‹TAK The Competitive Ability of Avena spp. and Alopecurus myosuroides Huds. Influenced by Different Wheat (Triticum aestivum) Cultivars Hüsrev MENNAN* Ondokuz May›s University, Faculty of Agriculture, Department of Plant Protection, 55139, Samsun - TURKEY Do¤an IfiIK Black Sea Agriculture Research Institute, Samsun - TURKEY Received: Abstract: Field experiments were conducted at Havza and Gelemen to evaluate the effect of different densities of Avena spp. and Alopecurus myosuroides Huds. on wheat cultivars Bezostaja and Kate-A-I. As expected the semi-dwarf cultivar Bezostaja was shorter than Kate-A-I in all weed densities, indicating that plant height was not correlated with competitiveness under the experimental conditions. The mean yields of Bezostaja and Kate-A-I in the weed-free plots in 2000-2001were 3420 kg ha-1 and 3360 kg ha-1, respectively. Both species caused decreases in wheat yield with increasing density. While 20 Avena spp. per square reduced the yield by in Bezostaja, yield losses of were observed in Kate-A-I for the same density. The competitive ability of Avena spp. with wheat cultivars was highly variable. Taking these yield losses into consideration, the competitive ability of Bezostaja with Avena spp. was higher than that of Kate-A-I. Similar results of yield loss were also observed in A. myosuroides. Wheat shoot dry weights consistently decreased with increasing weed density. However, there was no correlation between wheat cultivars and weed species. Kate-A-I has more competitive ability for the formation of biomass due to its height. Key Words: Bezostaja, Kate-A-I, competition, weed management Avena spp. ve Alopecurus myosuroides Huds.’in Farkl› Bu¤day (Triticum aestivum) Çeflitleri ‹le Rekabet Yeteneklerinin Araflt›r›lmas› Özet: Avena spp. ve Alopecurus myosuroides’in farkl› bu¤day çeflitlerine etkisini araflt›rmak amac›yla yap›lan çal›flmalar Havza ve Gelemen’de .

• Nông nghiệp
• Winter wheat
• Alopecurus myosuroides Huds
• Wheat cultivars Bezostaja
• Wheat field
• Recent agricultural policy
• Genotype × environment interaction
• Grain yield
• Triticum aestivum
• Winter wheat in Central Asia
• Cereal cyst nematodes
• Resistance of winter wheat
• International winter wheat improvement program
• Nematodes occur worldwide
• Cost effective
• The Relationship Between Chinese Raw Dumpling Quality
• Flour Characteristics of Shandong Winter Wheat Cultivars
• Wheat samples
• Analytical methods
• Raw dumpling preparation
• Raw dumpling sensory evaluation
• Breeding of winter wheat
• Wheat Triticum aestivum L
• Technological systems
• Environment friendly technologies
• Multifunctional agricultural production
• Genome plasmon interaction
• Winter triticum aestivum L alloplasmatic lines
• L alloplasmatic lines
• Winter bread wheat
• Septoria disease
• Genetic diversity
• Tolerance indices
• Multivariate analysis
• Stress susceptibility index
• Agronomic traits
• Drought stress
• Photosynthetic efficiency
• Stability index
• Winter wheat cultivar
• Normalized difference vegetation index
• Association of digital photo parameters
• Evaluating germplasm
• Bipolaris sorokiniana
• Inoculum concentration
• Area under the disease progress curve
• Disease severity
• Biplot analysis
• Multiple traits
• Path analysis
• Winter bread wheat landraces
• Degree of damage
• Triticum aestivum L
• Oulema melanopus
• Cereal leaf beetles (Oulema melanopus L )
• Cereal leaf beetles
• Winter wheat genotypes
• BMC Genomics
• Multi parent advanced generation intercross
• Plant height
• Genome wide association study
• Quantitative trait loci
• Segregation distortion
• BMC Genetics
• Genomic selection
• Ridge regression best linear unbiased prediction
• Soft red winter wheat
• Yield components
• Wheat varieties
• Fusarium graminearum
• Head scab
• Winter wheat crosses
• Allelic variations
• Bread wheat genotypes
• Seed storage protein
• Bread wheat
• High molecular weight
• International Winter Wheat Improvement Project
• Central Asia
• Food security
• Wheat cultivation
• Planted wheat
• Wheat grain production in Central Asia
• Grain yield component
• Reduced soil tillage
• Conventional tillage
• Cropping systems
• BMC Plant Biology
• Huai wheat production region
• Growth habit
• Growth period
• Poultry manure
• Certified organic wheat
• Agronomic evaluation of certified organic wheat
• Organic manures on growth
• Conducted during winter season
• Carbon isotope discrimination
• Irrigation water productivity
• Irrigation regimes
• Carbon isotope
• Irrigation water productivity of wheat
• Role of wheat
• Crop rotation
• Crop diversification
• Summer fallow
• Crop growing
• Diammonium phosphate
• Phosphorus fertilizers
• Triple superphosphate
• Stable isotopes
• Semiarid conditions
• Stomatal conductivity
• Oxygen isotope discrimination
• Population dynamics
• Pratylenchus thornei
• Root lesion nematodes
• Cropping system