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Artykuły w czasopismach na temat „Optique hybride”

Autor: Grafiati

Data publikacji: 28 września 2024

Data aktualizacji: 31 lipca 2025

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1

Jarry, P., R. Soares, and A. Perennec. "Le logiciel FREEL : réalisations en technologie hybride et monolithique d'amplificateurs microondes large bande pour dispositif de réception numérique sur fibre optique à 4,8 Gbit/s." Revue de Physique Appliquée 24, no. 5 (1989): 529–37. http://dx.doi.org/10.1051/rphysap:01989002405052900.

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Justin, Jyothi, and Nirmala Menon. "Digital Cartography and Feminist Geocriticism Case Study II: Kilvenmani Massacre." Cartographica: The International Journal for Geographic Information and Geovisualization 59, no. 2 (2024): 47–66. http://dx.doi.org/10.3138/cart-2023-0012.

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L’article explore les relations d’espace, de caste et de genre dans les massacres de Dalits en localisant les survivantes du massacre de Kilvenmani (1968) dans une optique de géocritique féministe et de cartographie numérique. L’introduction traite des recherches féministes dans le domaine des SIG pour les situer dans le contexte d’un ensemble de connaissances plus vaste. Vient ensuite une section sur le contexte du massacre de Kilvenmani et les recherches connexes. La prochaine section résume la méthodologie hybride/mixte qui combine géocritique féministe (localisant les survivantes sur les l

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Bodo, Bidy Cyprien. "Des fondements transculturels du picaresque au débat terminologique : du picaresque au picarisme ?" HYBRIDA, no. 2 (June 28, 2021): 161. http://dx.doi.org/10.7203/hybrida.2.20592.

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Cette étude est une réflexion sur les raisons qui fondent la transculturalité du picaresque. Elle explique pourquoi la culture et l’écriture picaresques sont en capacité d’aller de part en part des frontières littéraires et géographiques. Dans cette optique, l’analyse interroge les fondements du picaresque. Il en ressort, d’une part, que la poétique picaresque s’inspire du conte qui est une pratique culturelle et littéraire transculturelle. D’autre part, le déclencheur du picaresque, l’inégalité sociale, est également propre à l’humanité et donc transfrontalière. En conséquence, l’étude soutie

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Longin, C. F. H., H. F. Utz, A. E. Melchinger, and J. C. Reif. "Hybrid maize breeding with doubled haploids: Comparison between selection criteria." Acta Agronomica Hungarica 54, no. 3 (2006): 343–50. http://dx.doi.org/10.1556/aagr.54.2006.3.9.

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The optimum allocation of breeding resources is crucial for the efficiency of breeding programmes. The objectives were to (i) compare selection gain ΔGk for finite and infinite sample sizes, (ii) compare ΔGk and the probability of identifying superior hybrids (Pk), and (iii) determine the optimum allocation of the number of hybrids and test locations in hybrid maize breeding using doubled haploids. Infinite compared to finite sample sizes led to almost identical optimum allocation of test resources, but to an inflation of ΔGk. This inflation decreased as the budget and the number of finally se

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Aboderin, Olawale Serifdeen, Folusho Anuoluwapo Bankole, Muhyideen Oyekunle, and Gbadebo Olaoye. "Yield Stability and Inter-Traits Relationships of Maize Hybrids Under Low- and Optimum-Nitrogen Conditions." Agriculture (Pol'nohospodárstvo) 69, no. 4 (2023): 171–85. http://dx.doi.org/10.2478/agri-2023-0015.

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Abstract The menace of low soil nitrogen poses a significant challenge to maize production in sub-Saharan Africa, necessitating the development of high-yielding hybrids with increased nitrogen (N) tolerance. Two hundred and forty (240) maize hybrids were evaluated across eight environments at Zaria and Mokwa in Nigeria during the 2020 and 2021 growing seasons, encompassing both low- and optimum-N conditions. The primary objective of the study was to identify high-yielding, stable, and low-N-tolerant hybrids for potential adoption in Nigeria. The study results underscored the significant impact

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Gangaiah, B., IPS Ahlawat, and MBBP Babu. "Response of nitrogen fertilization on Bt and non-Bt cotton (Gossypium hirsutum) hybrids." SAARC Journal of Agriculture 11, no. 1 (2014): 121–32. http://dx.doi.org/10.3329/sja.v11i1.18389.

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A field experiment was conducted during 2006 and 2007 (June- December) at New Delhi to assess the performance of three cotton hybrids of which two Bt (MRC 6304 & RCH 317) and one non-Bt cotton hybrid LHH 144 (North zone check) in response to nitrogen fertilization (0, 60, 120 and 180 kg ha-1). Based on pooled analysis, both Bt hybrids produced similar seed cotton yield (SCY). Bt hybrid have produced 7.1 bolls/plant (on an average) and bolls 0.48 g heavier than non Bt hybrid LHH 144 that lead to 1.07 t ha-1 higher SCY of Bt hybrids than non-Bt hybrid (1.93 t ha-1). Though the N uptake by co

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Makore, Fortunate, Cosmos Magorokosho, Shorai Dari, Edmore Gasura, Upenyu Mazarura, and Casper Nyaradzai Kamutando. "Genetic Potential of New Maize Inbred Lines in Single-Cross Hybrid Combinations under Low-Nitrogen Stress and Optimal Conditions." Agronomy 12, no. 9 (2022): 2205. http://dx.doi.org/10.3390/agronomy12092205.

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Maize (Zea mays, L.) productivity in sub-Saharan Africa (SSA) remains low, despite breeding efforts spanning across decades. Currently, three-way cross hybrids (TWCH) dominate SSA; however, there is the potential to increase yields by using single-cross hybrids. In this study, five new and four elite CIMMYT lines were inter-mated in a half diallel mating scheme to estimate the combining ability of the lines and to determine the stability of their corresponding 36 single-cross hybrids for grain yield under low-nitrogen stress and optimum growing conditions in Zimbabwe and Zambia. The results re

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Chareyron, Romain. "Créer pour mieux voir : Image(s) du sida et enjeux de la représentation dans '120 battements par minute'." HYBRIDA, no. 3 (December 31, 2021): 35. http://dx.doi.org/10.7203/hybrida.3.21528.

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À travers l’analyse du film de Robin Campillo 120 battements par minute (2017), cet article se propose d’interroger le rôle des images dans notre conceptualisation de l’épidémie de sida. En choisissant de porter à l’écran un pan de l’histoire française récente dont la fiction s’est peu emparée – les lutte menées par Act Up-Paris durant les années 1990 – le film s’attache à effectuer un réexamen du passé du point de vue de celles et ceux qui ont combattu pour une plus grande justice sociale mais qui ont longtemps été relégués aux marges. Comme le montrera cet article, en prenant pour sujet une

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Sserumaga, Julius Pyton, Yoseph Beyene, Kiru Pillay, et al. "Grain-yield stability among tropical maize hybrids derived from doubled-haploid inbred lines under random drought stress and optimum moisture conditions." Crop and Pasture Science 69, no. 7 (2018): 691. http://dx.doi.org/10.1071/cp17348.

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Drought is a devastating environmental stress in agriculture and hence a common target of plant breeding. A review of breeding progress on drought tolerance shows that, to a certain extent, selection for high yield in stress-free conditions indirectly improves yield in water-limiting conditions. The objectives of this study were to (i) assess the genotype × environment (GE) interaction for grain yield (GY) and other agronomic traits for maize (Zea mays L.) across East African agro-ecologies; and (ii) evaluate agronomic performance and stability in Uganda and Tanzania under optimum and random d

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Ranwala, Anil P., Garry Legnani, Mary Reitmeier, Barbara B. Stewart, and William B. Miller. "Efficacy of Plant Growth Retardants as Preplant Bulb Dips for Height Control in LA and Oriental Hybrid Lilies." HortTechnology 12, no. 3 (2002): 426–31. http://dx.doi.org/10.21273/horttech.12.3.426.

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We evaluated preplant bulb dips in three commercial plant growth retardants [ancymidol (A-Rest), paclobutrazol (Bonzi), and uniconazole (Sumagic)] for height control in seven oriental hybrid lily (Lilium) cultivars (Aubade, Berlin, Casa Blanca, Muscadet, Sissi, Star Gazer, and Tom Pouce), and seven LA-hybrid lily [hybrids resulting from crosses between easter lily (Lilium longiflorum) and Asiatic hybrids] cultivars (Aladdin's Dazzle, Best Seller, Cebeco Dazzle, Royal Dream, Royal Parade, Royal Perfume, and Salmon Classic) grown in containers. A 1-min dip into a range of concentrations of each

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Dubchak, О., and L. Palamarchuk. "Creation stages and ways of studying the efficiency of sugar beet hybrids of various genetic bases." Agrobìologìâ, no. 1(171) (June 24, 2022): 15–23. http://dx.doi.org/10.33245/2310-9270-2022-171-1-15-23.

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Verkhnyachska research and selection station (VRSS) is widely known for its aborigineous, combining-capable multigerm pollinators’ (MP), which made the base of the new hybrids of sugar beet such as Kozak, Dzhura, Heroy etc. the Modern hybrids are capable to realize genotype caused potential of high efciency in changeable conditions. MP1, MP2 and MP 3 pollinators’ have been constantly used in the selection program "Betaintercross" as pollinators of parental components of hybrids. The paper presents the results of ecological test (ET) of sugar beet new hybrids created and tested under this progr

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Nyaga, Christine, Manje Gowda, Yoseph Beyene, et al. "Hybrid Breeding for MLN Resistance: Heterosis, Combining Ability, and Hybrid Prediction." Plants 9, no. 4 (2020): 468. http://dx.doi.org/10.3390/plants9040468.

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Prior knowledge on heterosis and quantitative genetic parameters on maize lethal necrosis (MLN) can help the breeders to develop numerous resistant or tolerant hybrids with optimum resources. Our objectives were to (1) estimate the quantitative genetic parameters for MLN disease severity, (2) investigate the efficiency of the prediction of hybrid performance based on parental per se and general combining ability (GCA) effects, and (3) examine the potential of hybrid prediction for MLN resistance or tolerance based on markers. Fifty elite maize inbred lines were selected based on their response

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13

Amuzu, G., P. F. Ribeiro, M. D. Asante, and J. N. L. Lamptey. "Genetic Studies of Extra Early Maize Genotypes Under Low Nitrogen." Agricultural and Food Science Journal of Ghana 16, no. 1 (2024): 1740–63. http://dx.doi.org/10.4314/afsjg.v16i1.7.

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Nitrogen (N) is a major limiting factor associated with maize production in sub-Saharan Africa. Low N tolerant hybrids can absorb and utilise N from the soil as well as applied fertilisers, making them efficient users of N. This study focused on identifying inbred lines with desirable GCA for grain yield and other agronomic traits under low N, determining the gene action governing grain yield and other agronomic traits under low N and estimating the genotypic variability for grain yield and other agronomic traits among extra early maize hybrids. Ten extra early white endosperm maize inbred lin

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TOKATLIDIS, I. S. "The effect of improved potential yield per plant on crop yield potential and optimum plant density in maize hybrids." Journal of Agricultural Science 137, no. 3 (2001): 299–305. http://dx.doi.org/10.1017/s0021859601001496.

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Honeycomb selection in the F2 generation of maize (Zea mays L.) hybrid PR 3183, based on line performance per se in the absence of competition, led to recycled hybrids with improved potential yield per plant (mean yield per plant in the absence of competition). In the present study six S6×S6 recycled hybrids and two commercial single-cross hybrids (PR 3183 and B73×Mo17) were tested at three plant densities (25000, 41667 and 83333 plants/ha), in two locations (Technological Education Institute farm of Florina, Greece and University farm of Thessaloniki, Greece), for 2 years (1998, 1999). The st

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15

So, Yim F., Martin M. Williams, and Jerald K. Pataky. "Wild-Proso Millet Differentially Affects Canopy Architecture and Yield Components of 25 Sweet Corn Hybrids." HortScience 44, no. 2 (2009): 408–12. http://dx.doi.org/10.21273/hortsci.44.2.408.

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Knowledge of cultivar-specific information on crop tolerance, the ability of the crop to endure competitive stress from weeds, has garnered recent interest in organic crop production. Twenty-five commercial sweet corn hybrids from nine seed companies were grown in the presence and absence of wild-proso millet (Panicum miliaceum L.) to 1) quantify tolerance in crop growth and yield to weed interference; 2) determine associations between tolerance in crop growth and yield; and 3) identify hybrids differing in tolerance to weed interference. Despite large differences in canopy architecture among

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Sheikholeslami, R., B. Gholipour Khalili, and S. M. Zahrai. "Optimum Cost Design of Reinforced Concrete Retaining Walls Using Hybrid Firefly Algorithm." International Journal of Engineering and Technology 6, no. 6 (2014): 465–70. http://dx.doi.org/10.7763/ijet.2014.v6.742.

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Du, Kunpeng, Jin Huang, Jing Chen, Youbing Li, Chaolong Yang, and Xiaochao Xia. "Mechanical Property and Structure of Polypropylene/Aluminum Alloy Hybrid Prepared via Ultrasound-Assisted Hot-Pressing Technology." Materials 13, no. 1 (2020): 236. http://dx.doi.org/10.3390/ma13010236.

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The polypropylene/aluminum alloy hybrid was prepared via an ultrasonic-assisted hot-pressing technology (UAHPT). The mechanical property and structure of the UAHPT processed polypropylene/aluminum alloy hybrid were explored by the tensile shear test, scanning electron microscopy (SEM), and atomic force microscopy (AFM), respectively. Prior to obtaining the UAHPT processed hybrid, the microporous structures were prepared by the anodic oxidation in a phosphoric acid solution in which the polypropylene (PP) melt flowed into and formed the micro mechanical interlocking structure at the interface o

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Al-Asbahi, Bandar Ali, Mohamad S. AlSalhi, Amanullah Fatehmulla, et al. "Controlling the Emission Spectrum of Binary Emitting Polymer Hybrids by a Systematic Doping Strategy via Förster Resonance Energy Transfer for White Emission." Micromachines 12, no. 11 (2021): 1371. http://dx.doi.org/10.3390/mi12111371.

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Tuning the emission spectrum of both binary hybrids of poly (9,9′-di-n-octylfluorenyl-2,7-diyl) (PFO) with each poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly[2-methoxy-5-(3,7-dimethyl-octyloxy)-1,4-phenylenevinylene] end-capped with Dimethyl phenyl (MDMO-PPV–DMP) by a systematic doping strategy was achieved. Both binary hybrid thin films of PFO/MEH-PPV and PFO/MDMO-PPV–DMP with various weight ratios were prepared via solution blending method prior to spin coating onto the glass substrates. The conjugation length of the PFO was tuned upon addition of acceptors (ME

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Boilot, J. P., F. Chaput, J. Biteau, et al. "Gels hybrides "organiques-inorganiques". Elaboration et applications en optique." Annales de Physique 20, no. 5-6 (1995): 727–33. http://dx.doi.org/10.1051/anphys:199556067.

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Bafanda, Reyaz Ahmed. "Optimum sizing methodologies and planning of different system components in hybrid power system." International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (2018): 1420–24. http://dx.doi.org/10.31142/ijtsrd11466.

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El Hallof, Nóra, and Mihály Sárvári. "Productivity and Nutrient Reaction of Maize Hybrids." Acta Agraria Debreceniensis, no. 16 (December 6, 2005): 78–83. http://dx.doi.org/10.34101/actaagrar/16/3293.

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Several factors influence the quantity and stability of maize yield, the most important being the nutrient supply, the hybrid and precipitation. In 2004, during the maize growing season the precipitation was more than the 30 year’s average, with 68.3 mm, but the distribution was unfavorable. The experiment was carried out in Debrecen at the Experimental Station of the University of Debrecen Centre of Agricultural Sciences, Department of Crop Production and Applied Ecology. We tested 10 various hybrids with their own genetic characteristics for five different fertilizer doses, in addition to th

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Bello, Omolaran, Odunayo Olawuyi, Mohammed Lawal, et al. "Genetic gains in three breeding eras of maize hybrids under low and optimum nitrogen fertilization." Journal of Agricultural Sciences, Belgrade 59, no. 3 (2014): 227–42. http://dx.doi.org/10.2298/jas1403227b.

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A comparative study on the response of six maize hybrids: two hybrids each from the 1980s (8321-21 and 8425-8), 1990s (9801-11 and 9803-2) and 2000s (0103-11 and 0103-15) to sub-optimal and optimal nitrogen fertilization was conducted in Oke-Oyi, Nigeria. The trials were set up in a split plot with three nitrogen levels (0, 30 and 90 kg N ha-1) as a main plot and six hybrids as sub-plots. Significant interactions were observed between hybrid and N level for all characters, with increasing in variation as the level of N decreased. Mean grain yield reductions across eras were 73.8% at no-N and 3

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Heckadka, Srinivas Shenoy, Suhas Yeshwant Nayak, and Navaneeth Krishna Vernekar. "Fabrication and Testing of Glass/Banana Hybridized Epoxy Mono Composite Leaf Spring under Static Loading." Key Engineering Materials 777 (August 2018): 432–37. http://dx.doi.org/10.4028/www.scientific.net/kem.777.432.

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This study makes use of E glass fiber and Banana fiber woven mats for the development of the hybrid composite mono leaf spring. Six composite laminates for selecting the optimum stack sequence were fabricated, four hybrids and two standalone using epoxy as matrix. From the flexural tests, two hybrid combinations were selected for fabricating the mono leaf spring. Among the hybrid composites, the one with three layers of glass fabric on the outside displayed maximum bending strength of 99.6 MPa. Composite mono leaf spring with three layers of glass fabric on the outside exhibited lower deflecti

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Efendi, Roy, Andi Takdir M., and Muhammad Azrai. "Daya Gabung Inbrida Jagung Toleran Cekaman Kekeringan dan Nitrogen Rendah pada Pembentukan Varietas Hibrida." Jurnal Penelitian Pertanian Tanaman Pangan 1, no. 2 (2017): 83. http://dx.doi.org/10.21082/jpptp.v1n2.2017.p83-96.

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<p class="Abstrak">Low maize grain yield due to drought and low N stresses maybe overcome by growing tolerance hybrid maize varieties.<strong> </strong>The objectives of this research were to analyze the combining ability of eight inbred lines possessing those traits and indentify suitable parental inbred lines which can be used to develop single cross hybrid tolerant to drought and low nitrogen. Eight inbred lines were crossed using complete diallel cross design of Griffing’s- I on Februry to June, 2014. Those inbred lines were 1044-30, DTPYC9-F46-3-9-1-1-B (for drought tole

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Wei, Wei, and Henri Darmency. "Gene flow hampered by low seed size of hybrids between oilseed rape and five wild relatives." Seed Science Research 18, no. 2 (2008): 115–23. http://dx.doi.org/10.1017/s096025850897433x.

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AbstractRecent concern about gene flow from transgenic plants to weedy species has attracted much research on the fitness of their hybrids. However, no studies have been reported on the very early effects of the seed size of hybrids compared with parental plants for germination, seedling establishment and plant growth. We produced hybrids between male sterile Brassica napus L. (oilseed rape) and five weedy relatives, including Brassica juncea (L.) Czern, B. nigra (L.) Koch, B. rapa L., Hirschfeldia incana (L.) Lagrèze-Fossat and Raphanus raphanistrum L. The hybrid seeds formed between B. napus

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Prasad, M. N., and S. S. Virmani. "Optimum Distance of Isolation for Hybrid Rice Seed Production." International Rice Research Newsletter 14, no. 3 (1989): 4–5. https://doi.org/10.5281/zenodo.7146789.

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This article 'Optimum Distance of Isolation for Hybrid Rice Seed Production' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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Miftiyati, Saral Dwi, Saprini Hamdiani, and Made Ganesh Darmayanti. "Synthesis Of Paramagnetic Merkapto Silica Hybrid From Rice Husk Ash For Ag(I) Adsorben." Acta Chimica Asiana 1, no. 2 (2018): 30. http://dx.doi.org/10.29303/aca.v1i2.19.

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A study has been conducted on the synthesis of paramagnetic mercapto silica hybrids as metal adsorbent of Ag(I). The aim of this study was to synthesis paramagnetic mercapto silica hybrid from rice husk ash waste, knowing the characteristics of paramagnetic mercapto silica hybrid from rice husk ash waste, and to determine the effect of pH, metal ions concentration, and the contact time on the value of adsorption capacity (Q). Based on the results of the study, it was found that paramagnetic mercapto silica hybrids can be synthesized from the rice husk ash waste. Characterization using FTIR spe

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Wade, LJ, and JW Foreman. "Density multiply maturity interactions for grain yield in sunflower." Australian Journal of Experimental Agriculture 28, no. 5 (1988): 623. http://dx.doi.org/10.1071/ea9880623.

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Variation in grain yield response to density (10 000, 30000, 50000, 70000, 90 000 and 110 000 plants/ha), of 2 sunflower hybrids differing in maturity (Hysun 11 and Hysun 30), was examined over a range of yield levels provided by 9 locations. While the interaction between hybrid, density and site was statistically highly significant, its value for commercial recommendations was limited. Optimum yields by each hybrid at each yield level did not differ significantly from yields at densities of 50000 plants/ha. When combined with Victorian and southern Queensland data, the responses were consiste

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Sárvári, Mihály, and Beáta Boros. "Determining elements of variety-specific maize production technology." Acta Agraria Debreceniensis, no. I (October 5, 2010): 157–61. http://dx.doi.org/10.34101/actaagrar/i/8395.

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Our aim was to work out such new maize fertilizer methods and models which can reduce the harmful effects of fertilization, canmaintain the soil fertility and can moderate the yield fluctuation (nowadays 50-60 %).The soil of our experimental projects was meadow soil. The soil could be characterized by high clay content and pour phosphorus andmedium potassium contents. In the last decade, out of ten years six years were dry and hot in our region. So the importance of crop-rotationis increasing and we have to strive for using the appropriate crop rotation.The yields of maize in monoculture crop

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CUTFORTH, H. W., C. F. SHAYKEWICH, and C. M. CHO. "SOIL WATER-SOIL TEMPERATURE INTERACTIONS IN THE GERMINATION AND EMERGENCE OF CORN (Zea mays L.)." Canadian Journal of Soil Science 65, no. 3 (1985): 445–55. http://dx.doi.org/10.4141/cjss85-048.

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Germination and emergence of corn as affected by soil water and soil temperature were measured on the hybrids Pioneer 3995, Northrup King 403 and Pride 1108 on an Almasippi loamy sand and a Carroll clay loam. It was found that both germination and emergence rates could be adequately described by a relationship to the proportion of potentially available water, i.e. that between field capacity and permanent wilting percentage, present in the soil. In the case of germination, a separate relationship was required for each hybrid. On the other hand, emergence rate of all three hybrids was adequatel

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Begizew, Golla. "Impact of Nitrogen Rate and Intra Row Spacing on growth parameters and Yield of Maize at Bako, Western Ethiopia." Open Journal of Plant Science 3, no. 1 (2018): 034–40. https://doi.org/10.17352/ojps.000013.

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The yield of maize is highly sensitive to nitrogen fertilizer rates and plant spacing. The space of plant is also varied depend on crop architecture and available resources. Some recent hybrids have erected and narrow leaf nature so that providing space for growing additional crop stands to increase yield per unit area. Hybrid BH-546 is among such hybrids which has erected and narrow leaf nature, but its optimum nitrogen rate and spacing has not been determined yet. Thus, a field experiment was conducted at Bako research farm in the year 2017 to determine the optimum rate of nitrogen fertiliza

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Singer, Hilal. "Application of a Performance Evaluation Model to the Paper and Paper Products Printing Sector: The DEA-AHP Hybrid Algorithm." Optimum Ekonomi ve Yönetim Bilimleri Dergisi 11, no. 2 (2024): 215–38. http://dx.doi.org/10.17541/optimum.1417219.

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The paper and paper products printing sector plays a crucial role in generating income, creating employment opportunities, and supporting exports and various industries. Measuring the efficiency of companies operating in this sector is important in identifying areas for improvement and enhancing overall performance. In this study, a two-stage DEA (data envelopment analysis)-AHP (analytic hierarchy process) approach is proposed to analyze the efficiency of twelve paper and paper products printing companies traded on Borsa Istanbul. The modified DEA method is employed to make pairwise comparison

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Ikotun, Abiodun M., and Absalom E. Ezugwu. "Boosting k-means clustering with symbiotic organisms search for automatic clustering problems." PLOS ONE 17, no. 8 (2022): e0272861. http://dx.doi.org/10.1371/journal.pone.0272861.

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Kmeans clustering algorithm is an iterative unsupervised learning algorithm that tries to partition the given dataset into k pre-defined distinct non-overlapping clusters where each data point belongs to only one group. However, its performance is affected by its sensitivity to the initial cluster centroids with the possibility of convergence into local optimum and specification of cluster number as the input parameter. Recently, the hybridization of metaheuristics algorithms with the K-Means algorithm has been explored to address these problems and effectively improve the algorithm’s performa

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Sinapidou, Evaggelia, Chrysanthi Pankou, Fotakis Gekas, et al. "Plant Yield Efficiency by Homeostasis as Selection Tool at Ultra-Low Density. A Comparative Study with Common Stability Measures in Maize." Agronomy 10, no. 8 (2020): 1203. http://dx.doi.org/10.3390/agronomy10081203.

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The study pertains to field experimentation testing seven maize (Zea mays L.) hybrids at four densities, across five locations under normal (NIR) and low-input (LIR) regimes. The main objective was to assess the prognostic value of plant yield efficiency by homeostasis (PYEH) for breeding purposes at ultra-low plant density to predict hybrid yield potential and stability. PYEH comprises plant yield efficiency (PYE) that reflects the ability of individual plants to exploit resources, and plant yield homeostasis (PYH) that indicates the crop’s ability to evade acquired plant-to-plant variability

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Mohammed, K. A., S. N. Alebadi, K. M. Ziadan, A. S. AL-Kabbi, A. J. Alrubaie, and H. M. Hussein. "Organic-inorganic hybrid material: synthesis, characterization for solar cell application." Journal of Ovonic Research 18, no. 1 (2022): 75–82. http://dx.doi.org/10.15251/jor.2022.181.75.

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We report a hybrid system based on conducting polymer-semiconductor from poly(otoluidine) (POT) doped with camphor sulfonic acid(CSA) and cadmium selenide capped with Tri sodium citrate(CdSe-TSC) by the physical mixing method. The influence of CdSe nanoparticles weight percent on the hybrid thin films have been investigated by means of XRD, FESEM, UV-VIS absorption and photoluminescence spectroscopy (PL) measurements. The main diffraction peaks of POT/CdSe hybrids are analogous to the neat CdSe nanoparticles. The absorption measurement reveals that the interaction between CdSe and POT in the h

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Adhikari, Madhusudhan, Shrawan Kumar Sah, Binod Ghimire, and Prajina Neupane. "Performance of hybrid maize at different nitrogen levels in spring season at Badhaiyatal area of Bardiya District, Lumbini Province, Nepal." Nepal Agriculture Research Journal 15, no. 1 (2023): 136–51. http://dx.doi.org/10.3126/narj.v15i1.51723.

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Blanket recommendation of nitrogen (N) for maize would not be applicable as the new high yielding hybridshave been grown in Nepal. A field experiment was carried out during spring season at Badhaiyatal, Bardiya to determine optimum N level for hybrid maize. The treatments consisted of three commercial maize hybrids namely Rampur hybrid-10, Rajkumar and Pioneer-3522 and four N levels i.e., 150 kg ha-1, 175 kg ha-1, 200 kg ha-1 and 225 kg ha-1. The experiment was carried out in split-plot design with maize hybrids as main plot factor and N levels as sub plot factor in three replications. Results

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Marchenko, Tetiana, Vadim Skakun, Yurii Lavrynenko, Оleksandr Zavalnyuk, and Yehor Skakun. "Biometric parameters and yield of maize hybrids in dependence on agricultural technology elements." Scientific Horizons 26, no. 11 (2023): 90–99. http://dx.doi.org/10.48077/scihor11.2023.90.

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Modern innovative corn hybrids of the intensive type have a significant individual response of morphometric and photosynthetic indicators to the density of the coenosis. Establishing correlations of these indicators with the level of grain yield of different genotypes of corn hybrids and determining the optimal parameters for the manifestation of these characteristics allows technological measures to ensure the realization of productive potential. The purpose of the research was to establish the peculiarities of the formation of biometric and photosynthetic indicators of innovative corn hybrid

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Karancsi, Lajos. "Examination of the Nutrient and Water Utilization of Different Corn Genotypes in the Hajdúság." Acta Agraria Debreceniensis, no. 56 (March 11, 2014): 55–59. http://dx.doi.org/10.34101/actaagrar/56/1934.

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The research was set up on chernozem soil at the Látókép MÉK research area of the University of Debrecen in Hungary. We examined the following factors of the hybrid P9494, P9578, PR37N01 and PR37M81 in 2013.Yield, yield production per 1 kg fertilizer, water utilization and nutrient reaction. We found that the best yield results were achieved at level N120+PK in case of hybrid P9494 (17 132 kg ha-1) P9578 (16 838 kg ha-1) and PR37N01 (17 476 kg ha-1) and at level N150+PK for hybrid PR37M81 (16 754 kg ha-1). Results of yield per 1 kg NPK studies indicate that the most intense yield growth occurr

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Alabboud, Michael, Siamak Kalantari, and Forouzandeh Soltani. "Postharvest performance interpretation and storage temperature optimization in some newly introduced melon hybrids." Advances in Horticultural Science 36, no. 1 (2022): 27–36. http://dx.doi.org/10.36253/ahsc-10914.

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Temperature is a key factor in melon cold storage. Thus, optimizing storage temperature is an important goal in postharvest research. In this experiment, postharvest attributes of four inbred lines and five derivative hybrids were investigated under three storage temperatures (1, 4, and 12°C). Melon fruit were evaluated for their main characteristics directly after harvest and postharvest changes were monitored through cold storage period. Cluster analysis results showed that most of the hybrids clustered with their maternal parents illustrating the significant role of cytoplasmic inheritance

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Soroka, J. J., D. W. Goerzen, K. C. Falk, and K. E. Bett. "Alfalfa leafcutting bee (Hymenoptera: Megachilidae) pollination of oilseed rape (Brassica napus L.) under isolation tents for hybrid seed production." Canadian Journal of Plant Science 81, no. 1 (2001): 199–204. http://dx.doi.org/10.4141/p00-081.

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In this 3-yr field study, the activities of alfalfa leafcutting bees (Megachile rotundata Fabricius) (LCB) at varying stocking levels were monitored in shade cloth isolation tents containing male-sterile and male-fertile rows of oilseed rape Brassica napus L. to determine optimum conditions for hybrid seed production. Bumble bees, Bombus impatiens Cresson, were similarly tested in 1 yr; their pollination activities were minimal, and weight of seed produced on female lines in tents containing bumble bees was similar to that in tents without pollinators. Leafcutting bee activity, as measured by

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Beáta Boros and Mihály Sárvári. "The effect of NPK fertilization and the plant density on maize yield and bioethanol production." Acta Agraria Debreceniensis, no. 41 (December 15, 2010): 13–18. http://dx.doi.org/10.34101/actaagrar/41/2673.

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For industrial (bioethanol) production of maize, a new production technology is needed. I tested and selected hybrids appropriate for this purpose and set up fertilization and plant density experiments. The experiment were set up on chernozem soil in 2008.In bioethanol production, the selection of a high-yielding hybrid with high starch content, a slight reduction of N, increase of potassium, the application of the highest plant densities of the optimum interval, harvest at full maturity (when starch content is the highest compared to protein content) are of great importance.

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Singh, Narendra, Radha Mohan Sharma, Anil Kumar Dubey, et al. "Harvesting Maturity Assessment of Newly Developed Citrus Hybrids (Citrus maxima Merr. × Citrus sinensis (L.) Osbeck) for Optimum Juice Quality." Plants 12, no. 23 (2023): 3978. http://dx.doi.org/10.3390/plants12233978.

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The assessment of the optimum harvesting stage is a prerequisite to evaluating the performance of new citrus genotypes. The intrinsic and extrinsic fruit quality traits of citrus fruits change throughout their developmental process; therefore, to ensure the highest quality, the fruit must be harvested at an appropriate stage of maturity. The biochemical changes in terms of total soluble solids (TSS), titratable acidity (TA), TSS/TA ratio, BrimA (Brix minus acidity), and ascorbic acid, in addition to the organoleptic acceptability of 16 new interspecific citrus hybrids, were evaluated in New De

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Ergin, Nurgül, and Mehmet Demir Kaya. "Ayçiçeğinin Çimlenme ve Fide Gelişimi Üzerine Kuraklık ve Sıcaklık Streslerinin Etkileri." Turkish Journal of Agriculture - Food Science and Technology 8, no. 3 (2020): 598. http://dx.doi.org/10.24925/turjaf.v8i3.598-602.3031.

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This study was aimed to determine the responses of some sunflower hybrids to drought and low temperature stresses during germination and seedling development period. Sunflower hybrids of Sanbro MR, 63LE113, 64LL62 and Meteor were used in the study. Germination percentage, mean germination time, root and shoot length, root / shoot ratio, seedling fresh and dry weight of the sunflower hybrids were investigated at two temperatures (low 15°C and optimum 25°C) and drought stresses (distilled water, -1.5, -3.0, -4.5 and -6.0 bar) induced by polyethylene glycol 6000. The results of the research showe

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Boros, Beáta, and Mihály Sárvári. "The effect of plant density on maize yield in average and extremely dry years." Acta Agraria Debreceniensis, no. 32 (December 21, 2008): 7–16. http://dx.doi.org/10.34101/actaagrar/32/3013.

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The yield safety of maize has not been satisfactory in Hungary for decades. Yield is influenced by the combination of several factors.In recent years, the frequency of dry years increased and fertilization decreased. These factors call for a rational determination of the plant density.I studied the relationship between plant density and yield in 2003-2004 and 2007 on meadow soil. In 2003, the weather was dry. In the vegetation period, the amount of precipitation was 78.5 mm lower and the temperature was 0.97 °C higher than the average of 30 years, the number of hot days was 47-60 (days with a

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Zsombik, László. "Changes in the Diaporthe helianthi Infection of Sunflower Hybrids Between 1998 and 2002." Acta Agraria Debreceniensis, no. 10 (May 11, 2003): 214–33. http://dx.doi.org/10.34101/actaagrar/10/3498.

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Plant protection, and especially the efficiency of protection against mycosis, is a very important production technological element concerning sunflower. The efficiency of production can be increased on the basis of a thorough pathological survey and its results carried out in a wide variety of hybrids, as the features of hybrids, the reactions of genetic bases to pathogens can be found out under domestic conditions.The tests were carried out at variety-test lots of OMMI for hybrids used for food or oil and other sunflower varieties admitted by the state at the Experimental Site DTTI Látókép,

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Lajos Gábor Karancsi, Lajos Fülöp Dóka, and Péter Pepó. "Examination of Hybrid-specific nutrient supply at corn on chernozem soli." Acta Agraria Debreceniensis, no. 48 (July 31, 2012): 91–95. http://dx.doi.org/10.34101/actaagrar/48/2460.

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The effect of increasing fertilizer dosages on the yield of eight different maize hybrids (SY Ondina, NK Kansas, NK Lucius, NK Octet, NK Thermo, SY Flovita, SY Brillio, NX 47279) has been investigated in the crop-year of 2011. According to our results it can be stated that contrarily to the control treatment the application of different nutrient-levels has resulted a significant yield increment (2 000–5 800 kg ha-1).Based upon the results of this experiment we have drawn the conclusion that the nutrient level of 120 kg N+PK was the optimal for the investigated hybrids. The highest yield (14 47

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Pang, K. K., and T. K. Tan. "Optimum loop filter in hybrid coders." IEEE Transactions on Circuits and Systems for Video Technology 4, no. 2 (1994): 158–67. http://dx.doi.org/10.1109/76.285622.

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Kumari, Shruti, S. K. Chakrabarty, Debashis Paul, Y. Singh, P. K. Bhowmick, and A. S. Hari Prasad. "Variability and heterosis of seed vigour traits in hybrid rice (Oryza sativa L.)." Indian Journal of Genetics and Plant Breeding (The) 83, no. 02 (2023): 168–75. http://dx.doi.org/10.31742/isgpb.83.2.2.

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The cultivars with high seed vigor are desirable for farmers to establish optimum plant stand under sub-optimal field conditions. The basic physiological processes are required to understand the hybrid vigor phenomenon, particularly for seed vigor and associated characteristics. Limited information on seed vigor in rice hybrids and their parental lines in relation to physical, physiological and biochemical characters are available. Three released rice hybrids and their respective female (A), maintainer (B) and restorer/male (R) lines were assessed for physical, physiological and biochemical tr

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Hadi, G. "Optimum harvest date of maize for biogas and silage purposes." Acta Agronomica Hungarica 57, no. 2 (2009): 119–25. http://dx.doi.org/10.1556/aagr.57.2009.2.3.

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The dry matter and moisture contents of the aboveground vegetative organs and kernels of four maize hybrids were studied in Martonvásár at five harvest dates, with four replications per hybrid. The dry matter yield per hectare of the kernels and other plant organs were investigated in order to obtain data on the optimum date of harvest for the purposes of biogas and silage production.It was found that the dry mass of the aboveground vegetative organs, both individually and in total, did not increase after silking. During the last third of the ripening period, however, a significant reduction i

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Hayashi, Koichiro, Toshifumi Shimizu, Hidefumi Asano, Wataru Sakamoto, and Toshinobu Yogo. "Synthesis of spinel iron oxide nanoparticle/organic hybrid for hyperthermia." Journal of Materials Research 23, no. 12 (2008): 3415–24. http://dx.doi.org/10.1557/jmr.2008.0417.

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Size-controlled spinel iron oxide (SIO) nanoparticle/organic hybrid was synthesized in situ from iron (III) allylacetylacetonate (IAA) at around 80 °C. The formation of SIO particles chemically bound with organics was confirmed by infrared and x-ray photoelectron spectroscopy. The sizes of SIO nanoparticles in the hybrids were monodispersed and ranged from 7 to 23 nm under controlled hydrolysis conditions. The hybrid including SIO particles of 7.3 nm was superparamagnetic, whereas those dispersed with particles above 11 nm were ferrimagnetic. The specific absorption rate (SAR) value was depend

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