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Efficacy of Commercial Insecticides against Tomato Leaf Miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Palpa, Nepal
2020
Anil Bastola | Subodh Raj Pandey | Anjali Khadka | Rajendra Regmi
A survey and field experiment were conducted to evaluate the efficacy of commercial insecticides against tomato leaf miner [Tuta absoluta (Meyrick)(Lepidoptera: Gelechiidae)] under farmer’s field condition in Palpa, Nepal from February 2018 to April 2018. It consists of seven treatments replicated three times. The treatments included: Abamectin 0.15% EC (dose: 0.3ml/liter), Imidachloprid 17.8% SL (dose: 0.3ml/liter), Spinosad 45% SC (0.3ml/liter), Azadirachtin 300 ppm (5ml/liter), Chlorantraniliprole 18.5% SC (0.3ml/liter), Emamectin benzoate 5% SC (2gm/liter) and control. Treatments were applied two times at 12 days interval. From the farmer survey, Tuta absoluta was identified as the major production problem of the study area. The field experiment revealed that there was a significant effect of insecticides in larval mortality and damage reduction. The lowest percentage of leaves damage was obtained in spinosad followed by chlorantraniliprole and emamectin benzoate and the lowest fruits damage was obtained in chlorantraniliprole followed by spinosad and emamectin benzoate. Similarly, the lowest larval population in both leaves and fruits was observed in chlorantraniliprole followed by spinosad and emamectin benzoate. Average mining in infested leaves and fruits was found non-significant at all days of observation. The rate of larval population reduction over control was found highest in chlorantraniliprole followed by spinosad and emamectin benzoate. Thus, chlorantraniliprole, spinosad and emamectin benzoate were superior insecticides for management of Tuta absoluta in the field condition.
Mostrar más [+] Menos [-]Estimation of Drought by Streamflow Drought Index (SDI) and Artificial Neural Networks (ANNs) in Ankara-Nallihan Region
2020
Tülay Akkurt Eroğluer | Halit Apaydin
In this study, it is aimed to predict drought in Nallihan region by using streamflow drought index and artificial neural network method which is a part of artificial intelligence approaches. The measured data of some meteorological stations (Nallihan, Beypazari, Mihaliccik, Catacik, Goynuk, Mudurnu, Seben and Eskisehir) in the Sakarya Basin and the Nallihan streamflow observation station between 1996 and 2015 were used to forecast 2015-2030 streamflow values. The correlation coefficient in the education and test stages of the ANN model was realized with a high consistency of 0.990 and 0.967, respectively. According to the mean absolute error method, the error performance values of ANN model are 0.19 for the training phase and 0.26 for the test phase. Cumulative streamflow series were created for the reference periods (k1, October-December; k2, October-March; k3, October-June; k4, October-September) and the streamflow drought index values were obtained using measured and predicted values. According to these values, mild droughts were more frequent between 1997-2015 and 2016-2030, but the number of moderate and severe droughts increased gradually. It is predicted that in the future, it may be seen in extreme arid periods in the region. Drought in the 6-month period between October and March is similar to the average of all periods for 1997-2015 and 2016-2030. The use of 6-month drought data for the streamflow drought index is expected to be useful in predicting future drought.
Mostrar más [+] Menos [-]The Effect of Mycorrhiza Applications and different Irrigation Regimes on Growth and Development Characteristics of Blackberry Cuttings
2020
Sevinç Şener | Canan Nilay Duran
The aim of this study was to investigate the effect of mycorrhiza application on the vegetative development of blackberry cuttings grown under different irrigation regimens. The research was conducted between March-June 2019 in Akdeniz University, Faculty of Agriculture, Research and Application Area. Glomus etunicatium, obtained from Çukurova University Soil and Plant Nutrition Department was used as mycorrhizal fungal material and four different irrigation levels (40%, 60%, 80%, 100%) were applied in the experiment. In order to investigate the effects of the applications on the morphological properties of blackberry cuttings, shoot diameter, plant length, number of leaves and relationship of these variables with each other and flowering dates were determined. When the results were evaluated, it was determined that mycorrhiza application had a positive effect on the vegetative development of the plants. Significant differences were determined between the effects of different irrigation levels on the morphological development of plants. The highest average shoot length (62.08 cm), stem diameter (8.37 mm) and number of leaves (16.28 number/plant) were obtained from the S100 application, where full irrigations were performed. However, there was no statistically significant difference between S80 and S100 subjects in terms of shoot length and stem diameter, and S60, S80 and S100 subjects in terms of number of leaves.
Mostrar más [+] Menos [-]Consumption and Use of Snail Limicolaria Flammea (Müller, 1774) in the City of Abidjan, Cote D’ivoire
2020
Sea Tehi Bernard | Envin Bogui Jacques Anicet | Akoa Essoma Edwige | Saki Suomion Justin | Kouamé Lucien Patrice
The nutritional survey on the snail Limicolaria flammea (Müller, 1774) integrated several aspects and made it possible to understand in particular socio-demographic characteristics of populations surveyed, the knowledge of the snail Limicolaria flammea (according to municipalities visited), vernacular names, consumption parameters, associated uses and the conservation of the meat of this snail. It appears that 55.33% of respondents are women and 44.67% are men. The most important age group is between 20-34 years old. In this age group, 50.12% of people say they consume the snail Limicolaria flammea. Ethnic groups, Akan (55.73%), Krou (35.21%), Mande (6.26%), and foreigners (2.8%) are thus represented in this study and have expressed their opinions on the knowledge and consumption of this animal species. Vernacular names (23 vernacular names) are quite different from each other according to ethnic groups. Consumption parameters showed that the flesh of snail is used for food (65.65%). Also, the shell of snail is used for medical (29.25%), and aesthetic (8.95%). Diseases treated are pain (20.46%) and rheumatism (6.90%). Investigations have shown that 61.70% of consumers keep the snail's flesh fresh, 38.30% of them smoked. The storage time most observed by consumers (65.40%) is 1 to 4 days.
Mostrar más [+] Menos [-]The Effect of Different Applications on In vitro Bulb Development of an Endemic Hyacinth Plant (Hyacinthus orientalis L. subsp. chionophyllus Wendelbo) Grown in Turkey
2020
Selay Doğan | Gülat Çağlar | Esra Bulunuz Palaz
In this study the effects of different sucrose concentrations, and the combinations of jasmonic acid (JA) with auxins (IAA or NAA) or with cytokinin (2iP) on the bulb induction and rooting of in vitro plantlets of Hyacinthus orientalis subsp. chionophyllus Wendelbo, which is endemic in Turkey, were investigated. The effect of four different sucrose concentrations (30, 45, 60 and 90 g L-1) on bulb formation in tissue culture was investigated. These plantlets were cultured on MS medium supplemented with several concentrations and combinations of JA (0.0, 1.0, 2.0 mg L-1) and 2iP (0.0, 0.25 and 0.50 mg L-1), IAA or NAA (0.5, 1.0 mg L-1). In JA- 2iP treatment, the highest number of bulblets (13.7 number/explant) was obtained by the combinations of JA 1.0 mg L-1 + 2iP 0.25 mg L-1. Also, the largest bulblets with the mean diameter of 7.9 mm were found on MS medium supplemented with JA 2.0 mg L-1. In JA – Auxin treatment, the mean root number per bulblet was highest (17.9 number/explant) and root formation rate was maximum (81.14%) on MS medium supplemented with IAA 1.0 mg L-1 + JA 2.0 mg L-1.
Mostrar más [+] Menos [-]Effects of Using Hazelnut Husk, Wood Shaving and of the Mixture at Different Thicknesses on Broiler Performances, Some Organ Weights, Foot-Pad Dermatitis and Litter Traits
2020
Musa Sarıca | Kadir Erensoy
This study was carried out to determine the effects of the use of hazelnut husk (HH), wood shavings (WS) and the mixture of 50% hazelnut husk + 50% wood shavings (MIX) in two different thicknesses (4 and 8 cm) as a litter material in broiler production. The experiment was carried out as a factorial experimental design (3 litter type and 2 thickness) and stocking density was 10 chickens per m2. At 6 wk. of age, the effect of litter types and thicknesses on broiler live weights, feed efficiency, and livability, were not significant. Also, no differences were found in terms of gizzard, digestive tract, abdominal fat and edible internal organ weight percentages. While carcass yield varied between litter groups, there was no difference between litter thicknesses. The litter moisture levels at the end of the trial were not affected the litter type and litter thickness, while the foot pad dermatitis (FPD) rates were significantly affected. The highest FPD levels were determined in the HH litter and 4 cm thickness. As a result, the use of HH, WS and MIX of them with a thickness of 4 and 8 cm had no effect on other traits except for FPD levels. It has been observed that these litter materials may be used successfully in broiler production and use of 8 cm thickness litter has minor positive effects except that the cost of litter has doubled.
Mostrar más [+] Menos [-]Correlation and Path Coefficient Analysis of Seed Yield and Yield Components of French Bean (Phaseolus vulgaris L.) Genotypes in Sub-tropical Region
2020
Santosh Kalauni | Deependra Dhakal
This research aims to determine the relationship between yield and yield components of French bean using multivariate statistical techniques. The study was conducted at Horticulture Research Station, Dailekh, Nepal for consecutive three year of 2016-2018. In this study, six French bean genotypes were used. The following measurements and observations were made: germination (%), pod length (cm), pod diameter (mm), individual pod weight and number of seeds pod-1 , number of dry pods plant-1, dry pod yield plant-1 and dry pod yield (t/ha), 100 seed weight (g) and seed yield (t/ha). Highly significant and positive correlation was recorded between seed yield and individual pod weight (r= 0.659***), number of seed pod-1 (r=0.548**) and pod length (0.459*). Conversely, pod diameter showed a negative and non-significant (-0.025) correlation on seed yield. Based on simple regression analysis, linear regression of individual pod weight, number of seed pod-1 and pod length leads to an increase in the seed yield (t/ha) by 0.188, 0.285 and 0.103 units respectively. From the path coefficient analysis maximum positive direct effect on seed yield was recorded by number of seeds pod-1 (0.767) followed by 100 seed weight (0.530) and individual pod weight (0.429). Also, stepwise multiple linear regression analysis revealed that three traits individual pod weight, 100 seed weight and number of dry pod plant-1 account for 68.22% of the total variation in seed yield, while only 31.78% was explained by rest of the variables. Summarizing outcomes of four statistical methods showed that individual pod weight appeared to be the most effective contributor of seed yield followed by the number of seed pod-1, 100 seed weight, and pod length. Therefore, focus should be laid on these characters in future breeding program while selecting genotypes for sub-tropics for improving the seed yield.
Mostrar más [+] Menos [-]Assessment of Preservative Ability of Aqueous and Ethanolic Extracts of Onion (Allium cepa L ) on Soybean Daddawa- A Condiment
2020
Adelodun Kolapo | Temitope Popoola | Flora Oluwafemi
Reports have indicated that lipid peroxidation is a key factor in soybean daddawa deterioration and Alliums are rich in antioxidants. The present study was carried out to investigate the preservative abilities of aqueous and ethanolic extracts of Onion (Allium cepa L) on stored soybean daddawa compared with Sodium Chloride treated samples. Soybean (Glycine max (L). Merr.) seeds fermented into soybean daddawa was preserved with both extracts (at 3, 5 and 7% concentration) and NaCl (at the concentrations of 0, 3 and 5%). The samples stored at 30±2°C for up to 14 days were analyzed for peroxide value (POV), free fatty acid (FFA), pH, titratable acidity (TTA), water absorption capacity (WAC) and fat absorption capacity (FAC). Type of solvent used in extraction did not have significant effect on all the storage indices. Extracts of Onion significantly lowered the POV, FFA and TTA generated in stored soybean daddawa. The pH of stored soybean daddawa samples treated with the NaCl and aqueous extract was not significantly affected while the ethanolic extract significantly reduced the pH from 8.26 – 8.34 to 5.72 – 5.89. The tested extracts lowered the WAC significantly while the FAC of treated soybean daddawa was not significantly affected compared to those treated with NaCl. Results of this study indicate that both extracts of Onion are more effective in lowering peroxidation in stored soybean daddawa and thus could be exploited for soybean daddawa preservation.
Mostrar más [+] Menos [-]Toz Gıda Proseslerinde Akışkan Yatak Uygulamaları
2020
Semra Bozkurt | Özgül Altay | Mehmet Koç | Figen Kaymak Ertekin
Akışkan yatak sistemi, ağır sanayiden, eczacılık, kimya ve gıda sanayisine kadar geniş kullanım alanı bulmaktadır. Bu sistemde küçük katı parçacıklar hava ile temas ettirilir ve hareketleri sağlanarak yatak içerisinde askıda tutulmaları sağlanır. Yatak içerisinde akışkanlaşmanın başladığı andaki hız olarak tanımlanan minimum akışkanlaşma hızı, akışkan yatak sistemlerin en önemli tasarım ve işletme parametresidir. Toz gıdalarda akışkan yatak, kurutma, aglomerasyon, granülasyon ve kaplama proseslerinde yaygın olarak kullanılmaktadır. Akışkan yatak teknolojisinde birçok olay eş zamanlı olarak gerçekleştiğinden sistem üzerine etki eden çok sayıda değişken mevcuttur. Bu derlemede, akışkan yatak, toz gıda proseslerinde akışkan yatak uygulamaları ve akışkan yatak sisteminin kullanılması sırasında dikkat edilmesi gereken parametreler hakkında bilgi sunulmaktadır.
Mostrar más [+] Menos [-]Macroanatomical Investigations on Renal Arteries of Southern Karaman Sheep
2020
Özdemir Derviş | Zekeriya Özüdoğru
In this study, it was aimed to investigate the arterial vascularization of the kidneys in the South Karaman sheep breed. Twelve South Karaman sheep kidneys were used in the study. The course of the renal arteries in the kidney was examined by means of dissection and corrosion cast techniques. The kidneys were vascularized with right renal artery and left renal artery to the arteries originating from the abdominal aorta. Right renal artery was seen to be slightly more prominent than the left renal artery. Left renal artery was measured longer and thicker than the right renal artery. The renal artery entering the renal hilus, dorsal and ventral part of the renal artery were detected. However, in several materials, the left renal artery was shown to have a third branch. The dorsal and ventral branches gave interlobar artery with numbers ranging from 2-5. Each interlobar artery had multiple arcuate artery. These arteries ended by giving the interlobular artery. Anastomosis was not observed between the renal arteries. Although there were some important variations in the distribution of renal arteries of South Karaman sheep, similar findings were reported in the literature.
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