Browsing by Author "Kulaz, H."

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Adaptation and Yield Potential of Different Quinoa Varieties in Van-Turkey Conditions
(Aloki Applied Ecological Research and Forensic inst Ltd, 2025) Kulaz, H.; Baran, I; Erdin, F.
The research was carried out in Van Y & uuml;z & uuml;nc & uuml; Y & imath;l University Field Crops Application area between 2020 and 2022 summer growing seasons according to a randomized complete block design with three replications in order to determine different quinoa (Chenopodium quinoa Willd.) varieties and populations that can be grown under irrigated conditions in Van region and their important botanical and agronomic characteristics. In the study, nine quinoa varieties (Q-52, Rainbow, Read Head, Sandoval Mix, Cherry Vanilla, French Vanilla, Mint Vanilla, Oro de Valle, and Moqu-Arrochilla) and one genotype (Population China) were used. According to the results of the two-year study, significant differences were found in significant differences in terms of plant height, number of panicle branches, main panicle length, seed yield, biological yield, harvest index, 1000-grain weight, seed protein ratio. However, it was determined that there were no significant differences in terms of the number of days of growth, number of branches and hectoliter weight. The highest grain yield was obtained from the Mint Vanilla variety (3266.7 kg/ha) in 2021 and from the Sandoval Mix variety (2915.4 kg/ha) in 2022, and it was concluded that these varieties could be cultivated in the region.
A Comparison of Recommended and Reduced Insecticide Regimes in Alfalfa
(2001) Yardim, E.N.; Ozgen, I.; Kulaz, H.
The objective of this study was to evaluate the effects of the recommended rates of insecticides applied at two different population levels of the alfalfa weevil, Hypera variabilis Hbst. (Coleoptera: Curculionidae) and the reduced levels of insecticides on alfalfa weevil, predators and yield in 1998 and 1999. More specific objective was to search for options to reduce insecticide usage while implementing an effective pest control, thereby developing more economically and environmentally sound alfalfa production systems. The treatments used included: i) recommended rate insecticide (malathion) at population level of 5 weevils/sweep, ii) recommended rate at population level of 10 weevils/sweep, iii) 50% of recommended rate at population level of 10 weevils/sweep, iv) stripe spray of 50% rate at population level of 10 weevils/sweep, where insecticides were applied only on 0.5 m stripes in plots while the next 0.5 m stripes were not treated and v) control. The results indicated that the recommended rate insecticide application at 5 weevils/sweep level provided the highest reduction in the weevil densities in both years. No significant differences occurred among the weevil densities in the plots received the recommended rate, the 50% rate and the stripe spray insecticide treatments at 10 weevils/sweep level. Predators were in general more abundant in the insecticide treated plots compared to the control. The insecticide applications, except the stripe spray in 1999, led to increases in yields.
Effect of Different Organic Fertilizers and Rhizobium Strains Applications on Some Agronomical Traits in Fenugreek (Trigonella Foenum-Graecum L.)
(Centenary University, 2016) Tunçtürk, R.; Kulaz, H.; Çiftçi, V.
This study was carried out to determine the effects of various fertilizer sources, and bacteria inoculation on the yield and yield components of fenugreek (Trigonella foenum graecum L.) under irrigated conditions in 2011 and 2012 spring periods. Field trials were conducted at randomized complete block split plot design with three replications on the experimental area of Yuzuncu Yıl University, Agricultural Faculty. As factorial, four different fertilizer sources [control, humic acid, aluminium silicat and organic (B5A) manure], three bacteria inoculants (#1, #22 and #760). Trait such as plant height, the number of branch, first bean height, bean length, the number of bean per plant, the number seed per bean, 1000-seed weight, hectoliter weight, seed yield, seed yield per plant, seed protein and seed fatty oil content of fenugreek seed were investigated. In the result of the study, the highest seed yield (743 kg ha-1) was obtained from the bacteria 760# inoculant in 2011; while the highest seed yield (1041 kg ha-1) was obtained from the bacteria #1 inoculant in 2012. However, significant differences were not determined between bacteria inoculants for seed yield in 2012. For fertilizer sources, the highest seed yields (864 kg ha-1 and 1124 kg ha-1) were obtained from the aluminium silikat fertilization in 2011 and 2012, respectively. © 2016, Centenary University. All rights reserved.
Effect of Humic Acid and Phosphorus Applications on the Yield and Yield Components in Lentil (Lens Culinaris Medic.)
(Agricultural Research Communication Centre, 2014) Dogan, Y.; Togay, Y.; Togay, N.; Kulaz, H.
Lentil is commonly grown as a rotation crop in east and southeast of Turkey. It is an important crop because of its high protein content of seed and straw for human and animal nutrition. Phosphorus in the soil has developmental activity in the plant's root growth. The effects of humic substances on plant growth, under conditions of adequate mineral nutrition, consistently show positive effects on plant biomass. An experiment was conducted to study the effect of different levels of humic acid and phosphorous on yield and yield attributes of lentil during 2008-09 and 2009-10 in Agricultural Faculty experiment field of Yuzuncu Yil University. The results of the study indicated that humic acid and phosphorus applications increased significantly the seed yield and yield components. Whereas the highest seed yield were obtained from 80 kg phosphorus ha(-1) with 1135 kg ha(-1) and 600 kg humic acid ha(-1) application with 1097 kg ha(-1) in the first year, the values were 80 kg phosphorus ha(-1) with 1756 kg ha(-l)and 600 kg humic acid ha ha(-1) application with 1625 kg ha(-1) in the second year.
Effect of Humic Acid Applications on Some Nutrient Contents of Soybean (Glycine Max L.) Cultivars
(Scibulcom Ltd, 2016) Tuncturk, R.; Kulaz, H.; Tuncturk, M.
This study was carried out to determine the effects of humic acid applications to some nutrient concentrations of soybean cultivars (Stressland, Cisne and 54240) under the greenhouse conditions in 2010 year. In study, the effect of different humic acid (control, 400,800 and 1200 ml/100 kg seed) applications and soybean cultivars (Cisne, Stressland and 54240) on mineral ions content in various plant organs of soybean (Glycine max. L.) was investigated. Soybean plant was divided into leaf, shoot and root parts for nutrient (Ca, Na, K, P, Fe, Mn, Cu and Zn) concentration measurements and were analysed. Results indicated that the nutrient concentration in plant tissues like leaf, shoot and root of soybean was strongly affected by all humic acid treatments. Usually, nutrient concentration in all parts of plants was increased with in creasing of humic acid doses. It was determined that increased Ca, Na, K, P and Fe contents while decreased Mn, Cu and Zn contents in plant organs of soybean after 800 ml/100 kg humic acid application.
Effect of Zinc Applications on Some Nutrient Concentrations of Soybean (Glycine Max L.) Cultivars
(Scibulcom Ltd., 2017) Kulaz, H.; Tuncturk, R.; Tuncturk, M.
This study was carried out to determine the effects of zinc applications on some nutrient concentrations of soybean cultivars (Stressland, Cisne and S4240) under the greenhouse conditions in 2010. In this study, the effect of different zinc dose applications (Control, 5, 10 and 15 mg/kg soil) on mineral ions content of various plant organs of soybean (Glycine max. L.) cultivars were investigated. Soybean plant was divided into leaf shoot and root parts for nutrient (Ca, Na, K, P, Fe, Mn, Cu and Zn) concentration measurements and were analysed. Results indicated that the nutrient concentrations in plant tissues like leaf, shoot and root of soybean were strongly affected by all zinc treatments. Nutrient concentrations in all parts of plants were increased with increasing zinc doses. Mn content in shoot and Na content in the root of soybean have been found to decrease after 10 mg zinc application.
Effects of Different Rates of Rhizobial Inoculant on Yield, Yield Attributes and Nodulation in Winter Lentil Lens Esculentus L Cultivars
(University of the West Indies, 2010) Erman, M.; Kulaz, H.
A field experiment was conducted to study the growth and yield responses of lentil (Lens esculentus L) cultivars (cv. Yerli Kirmizi and cv. Sazak-91) to different rates of rhizobial inoculant (Uninoculated control, 10 g, 15 g and 20 g peat inoculants kg-1 seeds) during the winter seasons of 2003-04 and 2004-05 in Van, Turkey. Results showed that higher values of root nodulation, number of pods plant-1, number of seeds plant-1, seed yield, biomass yield and number of branches plant-1 were obtained from cv. Yerli Kirmizi whereas plant height, 1000 seed weight, root and shoot dry weight plant-1 were higher in cv. Sazak 91. Application of 20 g peat kg-1 seeds significantly increased all growth and yield attributes, (seed yield, biomass yield and number of nodules) when compared with the 15 g and 10 g peat inoculants kg-1 seeds and the control treatments. Inoculation with 20 g inoculants peat kg-1 seeds during 2003-04 and 2004-05 increased number of nodules, by 67.3 and 40.6% respectively and seed yield, by 24.5 and 20.0% respectively over uninoculated control. Uninoculated control gave the lowest values. © 2010 Trop. Agrie. (Trinidad).
Effects of Different Sowing Times and Phosphorus Application on Yield and Quality of Camelina (Camelina Sativa L. Crantz)
(Centenary University, 2019) Tuncturk, R.; Kulaz, H.; Tuncturk, M.
This study was carried out for determination effects of sowing time and phosphorus applications on several yield and quality components of Camelina sativa (L.) Crantz during 2014-2015 years in Van/Turkey ecological conditions. The factorial experiment was designed based on split plot with two factors including (A) sowing times (7-10 April, 22-25 April and 7-10 May) and (B) phosphorus fertilization (0, 40 and 80 kg ha-1 P2O5) in three replicates. Several yield and quality parameters such as plant height, first capsule height, number of branches, number of capsules, number of seeds in each capsule, thousand seed weight, seed yield, oil content as well as yield were measured. Results showed that sowing times had significant effects on all parameters except for seed numbers per capsule and oil contents (P<0.05). The most values for first capsule height (28.86 cm) and thousand seeds weight (0.94 gr) observed at 7-10 April sowing time, while the highest amounts of number of branches (12.48 branch plant-1), number of capsule (130.33 capsule plant-1), seed yield (1128.6 kg ha-1) and oil yield (328.0 kg ha-1) were obtained at 22-25 April and 7-10 May. On the other hand, the effects of phosphorus application was statistically significant (P<0.05) on first capsule height, number of branches, number of capsules and thousand seeds weight. The most value for first capsule height (28.56 cm) was determined using 40 kg ha-1 P2O5 application, while the highest number of branches (12.41 branch plant-1), number of capsules (142.85 capsule plant-1) and thousand seeds weight (0.95 gr) were observed by using 80 kg ha-1 P2O5. © 2019, Centenary University. All rights reserved.
Effects of Neem-Based and Chemical Insecticides on Some Arthropods in Alfalfa
(2001) Yardim, E.N.; Ozgen, I.; Kulaz, H.
In this study, we tested the effects of two different doses of neem (azadirachtin) on the alfalfa weevil, Hypera variabilis Hbst. (Coleoptera: Curculionidae), aphids and predators (Coccinellids, anthocorids, chrysopids and spiders) and compared the effects with those of a broad spectrum insecticide (malathion) in a controlled experiment in 1998 and 1999. Malathion treatments reduced alfalfa weevil densities significantly (p < 0.01) by 77.9 and 87.4% in 1998 and 1999, respectively. Alfalfa weevil numbers in the low dose neem-treated plots were lower by 45.2% in 1998 and 50.2% in 1999. There were 45.3% fewer alfalfa weevils in the high dose neem-treated plots in 1999. In 1998, aphid numbers were reduced by 11.1, 25.3 and 41% in the low dose neem-treated plots, the malathion-treated plots and the high dose neem-treated plots, respectively. Aphids were more abundant in the malathion-treated plots, whereas they were fewer in the neem-treated plots compared to the control in 1999. The treatments did not have any significant effects on the total numbers of predators.
The Effects of Plant Density on the Yield and Yield Components of Chickpea (Cicer Arietinum L.) in Van
(TUBITAK, 1999) Kulaz, H.; Çiftçi, V.
This study was conducted in the experimental area of Yüzüncü Yil University Agricultural Faculty in 1994-1995. The trial was carried out in a randomized block desing with four replications. In this study, three chickpea lines and three plant densities (28, 42 and 56 seed/m2) were examined for their effects on yield components. According to the results over 2 years, the effects of plant density were significant on the yields and yield components in chickpea. The highest grain yield per unit area was obtained with a density of 42 seed per m2 (146.6 kg/da). The lowest grain yield per unit area was obtained with 28 seed per m2 (123.4 kg/da).
Impact of Different Sowing-Times of the Quinoa (Chenopodium Quinoa Willd.) and Its Varieties on the Yield and Yield Components in Turkey-Mardin Ecology Condition
(Corvinus Univ Budapest, 2019) Altuner, F.; Oral, E.; Kulaz, H.
This research was planned to determine the correct sowing times of quinoa (Chenopodium quinoa Willd.) varieties under the ecological conditions of Turkey-Mardin. The study was conducted in three different sowing times (15 March, 30 March and 15 April) using 2 quinoa varieties in aqueous conditions in 2017 spring period with three repetitions. At the end of the research; according to the data obtained, the number of plants in the harvest (15.4- 29.2 plants/m(2)), plant height (73.9-90.3 cm), the main panicle length (31.1-43.9 cm), the number of panicle branches (23.7-29.7 units plant), thousand weight (3.37-3.46 g), grain yield (125.6-1339 kg ha(-1)), hectoliter weight (6220-6280 kg ha(-1)) and crude protein ratio (14.8-15.7%) ranged. The highest grain yield was obtained from the application of Valiente and Titicaca (April 15) with 1345-1333 kg ha(-1), respectively. As a result of these properties, it was concluded that the most suitable planting time for quinoa (Chenopodium quinoa Willd.) cultivation in Mardin may be the second week of April.