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Journal articles on the topic 'Selection cycle'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

McLean, N. L., and J. Nowak. "In vitro selection for improved seedling vigour in birdsfoot trefoil (Lotus corniculatus L.)." Canadian Journal of Plant Science 77, no. 3 (1997): 385–90. http://dx.doi.org/10.4141/p96-079.

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Establishment of productive stands of birdsfoot trefoil (Lotus corniculatus L.) is often difficult due to poor seedling vigour. Objectives of this study were to evaluate the relative effectiveness of in vitro selection conditions for seedling vigour and to choose the best lines for further evaluation. Birdsfoot trefoil seedlings from cvs. Leo and Upstart were selected on the basis of in vitro rate of germination at 5, 12 and 20 °C and subsequent seedling growth at 20 °C. Two cycles of recurrent selection were carried out. Progeny from both cycles of selection were evaluated under controlled an

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CAMPBELL, T. A., J. H. ELGIN JR., C. D. FOY, and J. E. McMURTREY III. "SELECTION IN ALFALFA FOR TOLERANCE TO TOXIC LEVELS OF ALUMINUM." Canadian Journal of Plant Science 68, no. 3 (1988): 743–53. http://dx.doi.org/10.4141/cjps88-087.

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The alfalfa (Medicago sativa L.) population ’B13’ was screened through four cycles of recurrent phenotypic selection for tolerance to toxic levels of Al in growth chambers; germplasm from cycles 1 through 4 was designated B13-A11, B13-A12, B13-A13, and B13-A14, respectively. Cycles 1 and 2 were screened in Tatum clay-loam subsoil (36% Al saturation for cycle 1 and 61% Al saturation for cycle 2), and cycles 3 and 4 were screened in a modified Steinberg solution (111 μmol Al, pH 4.5). Selection was based on root growth in the first two cycles and shoot growth in the latter two cycles. Selections

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Metcalf, S. J., R. E. Critoph, and Z. Tamainot-Telto. "Optimal cycle selection in carbon-ammonia adsorption cycles." International Journal of Refrigeration 35, no. 3 (2012): 571–80. http://dx.doi.org/10.1016/j.ijrefrig.2011.11.006.

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SILVA, JÉSSICA DANIELE LUSTOSA DA, KAESEL JACKSON DAMASCENO-SILVA, MAURISRAEL DE MOURA ROCHA, JOSÉ ÂNGELO NOGUEIRA DE MENEZES JÚNIOR, and VALDENIR QUEIROZ RIBEIRO. "SELECTION FOR THE DEVELOPMENT OF BLACK EYE COWPEA LINES." Revista Caatinga 31, no. 1 (2018): 72–79. http://dx.doi.org/10.1590/1983-21252018v31n109rc.

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ABSTRACT Cowpea bean is a socioeconomically important legume that contribute to generate employment and income. This species presents great grain variability, and the commercial subclass black eye stands out as a very appreciated grain in Brazil and abroad, thus requiring the development of new cultivars. The objective of this work was to evaluate and select lineages of commercial black eye cowpea, based on simultaneous, and direct selection. First, 105 progenies and four controls were evaluated using the Federer's augmented block design. Seventy-seven progenies, selected from this evaluation-

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Halward, T., and J. C. Wynne. "Progress and Variability After Four Cycles of Recurrent Selection in Peanut1." Peanut Science 19, no. 1 (1992): 20–24. http://dx.doi.org/10.3146/i0095-3679-19-1-5.

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Abstract Recurrent selection procedures are becoming more popular as a means of population improvement in self-pollinated crops. Four cycles of recurrent selection for yield in a broad-based peanut (Arachis hypogaea L.) population have been completed. The objectives of this study were to determine (a) progress made after four cycles of recurrent selection for fruit yield and (b) if sufficient variability remained in the population to permit further improvements in yield from additional cycles of selection. The 40 highest yielding lines from 100 random-paired matings, were intercrossed to produ

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Patzel, Volker, Ralf Kronenwett, Karola Rittner, and Georg Sczakiel. "Fast Rna-Rna Annealing in Vitro: Single Cycle Selection Versus Multiple Cycle Selection." Nucleosides and Nucleotides 16, no. 5-6 (1997): 711–15. http://dx.doi.org/10.1080/07328319708002938.

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Shmeleva, Elizaveta A., and Ivan A. Arkharov. "Selection of the optimal air liquefaction cycle for liquid air energy storage." MATEC Web of Conferences 324 (2020): 01007. http://dx.doi.org/10.1051/matecconf/202032401007.

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The report analyzes and selects the liquefaction cycle for Liquid Air Energy Storage. The specific liquefaction coefficient and the coefficient of thermodynamic perfection were calculated for the following cycles: the Linde-Hampson cycle, the Claude cycle, the Heylandt Cycle, the Collins cycle, and the cycle with two expanders. The criterion for optimizing cycles is the maximum value of the liquefaction coefficient. The Claude cycle was chosen as the optimal cycle for use in the Liquid Air Energy Storage. Its exergy efficiency was calculated.

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Scott, B. J., M. A. Ewing, R. Williams, A. W. Humphries, and N. E. Coombes. "Tolerance of aluminium toxicity in annual Medicago species and lucerne." Australian Journal of Experimental Agriculture 48, no. 4 (2008): 499. http://dx.doi.org/10.1071/ea07137.

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A rapid (7 day) solution-based screening test was developed using 15 annual Medicago cultivars and one M. sativa. Based on a relative root regrowth after exposures to aluminium (Al), Zodiac (M. murex), Orion (M. sphaerocarpos) and the M. polymorha cultivars Santiago, Cavalier and Serena had the greatest Al tolerance. Herald (M. littoralis) and Rivoli (M. tornata) were most sensitive. Ranking for Al tolerance from the solution culture correlated well (r = 0.80) with ranking for tolerance of the 16 genotypes grown in an acidic soil (unlimed pHCa 4.1). We screened 17 Australian populations of luc

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Carson, M. L. "Response of a Maize Synthetic to Selection for Components of Partial Resistance to Exserohilum turcicum." Plant Disease 90, no. 7 (2006): 910–14. http://dx.doi.org/10.1094/pd-90-0910.

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A synthetic population of maize (Zea mays) was created from five inbred lines of varying levels of partial resistance to northern leaf blight (NLB). This synthetic was subjected to three cycles of recurrent phenotypic selection with pollen control for either increased latent period or decreased lesion length. A selection intensity of ca. 10% was used in each selection cycle. The original synthetic and three advanced selection cycles for each of the two components of partial resistance were evaluated in field trials in the summers of 1999 and 2001, and in greenhouse trials. Selection for increa

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OMOIGUI, L. O., S. O. ALABI, and A. Y. KAMARA. "Response of low-N pool maize population to nitrogen uptake and use efficiency after three cycles of full-sib recurrent selection." Journal of Agricultural Science 145, no. 5 (2007): 481–90. http://dx.doi.org/10.1017/s0021859607007198.

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SUMMARYIdentification of plant cultivars efficient for nitrogen (N) uptake and utilization may contribute to the improvement of crop yield potential in areas of low-N (LN) availability. Three cycles of full-sib recurrent selection were applied on a LN pool-yellow (LNP-Y) maize population to improve its level of tolerance to low soil N in the savannah ecosystem. The progress after three cycles of selection was evaluated for two years (2000 and 2001). The objectives of the study were to classify the cycles in relation to response to N levels under field conditions and to investigate the progress

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Arrendell, S., J. C. Wynne, G. H. Elkan, and T. J. Schneeweis. "Selection Among Early Generation Peanut Progeny for Enhanced Nitrogen Fixation1." Peanut Science 15, no. 2 (1988): 90–93. http://dx.doi.org/10.3146/i0095-3679-15-2-12.

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Abstract Recurrent selection provides an established methodology for host improvement which should be applicable to increasing N2 fixation. This study was conducted to evaluate response to three cycles of phenotypic selection for fresh plant weight, nodule number and dry weight, and acetylene reduction when individual peanut (Arachis hypogaea L.) plants were evaluated in the greenhouse using a mixture of four Bradyrhizobium strains as inoculum. The F2 generation derived from a single cross, Florigiant x CES 101, constituted the base population. In each of three cycles the 20 superior individua

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Júnior, José Arantes Ferreira, Gabriel Moreno Bernardo Gonçalves, Jocarla Ambrosim Crevelari, et al. "Genetic progress in maize from advanced cycles of reciprocal recurrent selection through REML/BLUP." AUGUST 2020, no. 14(08):2020 (August 20, 2020): 1295–301. http://dx.doi.org/10.21475/ajcs.20.14.08.p2562.

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Breeding methods such as reciprocal recurrent selection (RRS) is very important alternative to breeders. This strategy, besides allowing continuous genetic progress, helps maintaining the genetic variability of populations. The aim of the present study was to estimate genetic parameters, as well as to predict selection gains in advanced cycles of reciprocal recurrent selection of maize progenies through mixed models. Two selection cycles were considered. We evaluated 196 and 169 progenies in the 15 and 16 cycles, respectively. The yield potential of the progenies was evaluated from the followi

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Lyons, M. E., M. H. Dickson, and J. E. Hunter. "Recurrent Selection for Resistance to White Mold in Phaseolus Species." Journal of the American Society for Horticultural Science 112, no. 1 (1987): 149–52. http://dx.doi.org/10.21273/jashs.112.1.149.

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Abstract Recurrent selection was used to breed Phaseolus species for resistance to white mold disease, caused by Sclerotinia sclerotiorum. Twenty diverse genotypes selected for resistance to white mold formed the cycle 0 population. These lines were intercrossed in a partial diallel, and the F2 progeny were tested for resistance to white mold using a detached blossom/ascospore technique. Twenty single-plant selections were made, and the F3 progeny of these selections formed the cycle 1 population. A 2nd cycle of intercrossing, evaluation, and selection was completed, and genetic gain was deter

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Haynes, K. G., and F. L. Haynes. "Selection for Tuber Characters Can Maintain High Specific Gravity in a Diploid Potato Breeding Population." HortScience 25, no. 2 (1990): 227–28. http://dx.doi.org/10.21273/hortsci.25.2.227.

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A base population of high specific gravity clones was established from a diploid hybrid population of Solarium tuberosum Group Phureja and Solarium tuberosum Group Stenotomum previously adapted to the long-day growing conditions in North Carolina. This base population was subjected to two 2-year cycles of recurrent selection. During each cycle, selections in the field were made on the basis of tuber smoothness, shape, and size. Tubers from unselected clones were bulked by plots. Tuber specific gravity was determined for the selected and unselected (bulk) clones. Tuber specific gravity was sign

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Pandey, Mukundjee, Biranchi Padhi, and Ipsita Mishra. "Selection of low temperature thermal power cycles." Thermal Science, no. 00 (2020): 165. http://dx.doi.org/10.2298/tsci191116165p.

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In today?s world, we are facing the problem of fossil fuel depletion along with its cost continuously increasing. Also, it is getting difficult to live in a pollution free environment. Solar energy is one of the most abundantly and freely available form of energy. Out of the various ways to harness solar en-ergy, solar thermal energy is the most efficient as compared to photo-voltaic technology. There are various cycles to convert the solar thermal energy to mechanical work, but Kalina cycle (KC) is one of the best candidates for high efficiency considerations. Therefore, the authors have prop

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Silva, Graciele Simoneti da, Magno Antonio Patto Ramalho, Ângela de Fátima Barbosa Abreu, and José Airton Rodrigues Nunes. "Estimation of genetic progress after eight cycles of recurrent selection for common bean grain yield." Crop Breeding and Applied Biotechnology 10, no. 4 (2010): 351–56. http://dx.doi.org/10.1590/s1984-70332010000400010.

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The objective of this study was to estimate the genetic progress of eight cycles of recurrent selection for common bean lines with high yield. The base population was obtained from 10 parents differing in several characters. To date, eight selection cycles have been performed. In each cycle the selection process continues after recombination, until lines are established, which are then evaluated more extensively in the experiment of evaluation of elite lines together with lines of other programs. The genetic progress was estimated based on the data of evaluations of these lines in each cycle o

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Rose, JL, DG Butler, and MJ Ryley. "Yield improvement in soybeans using recurrent selection." Australian Journal of Agricultural Research 43, no. 1 (1992): 135. http://dx.doi.org/10.1071/ar9920135.

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The objective of this study was to evaluate the potential of recurrent selection for improving seed yield in a soybean population. Seventeen parents, chosen for their high yield potential in the sub-tropical environments of Southern and Central Queensland were intermated using a diallel cross mating system. F1 plants were intercrossed in pairs for two more generations and then allowed to self for two generations to produce the base population. The selection criterion was the seed yield of S1 lines grown at Hermitage Research Station. The selection intensity was approximately 10%. After five cy

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Cullen, Michael H., Lucinda J. Billingham, Claire H. Gaunt, and Neil M. Steven. "Rational Selection of Patients for Antibacterial Prophylaxis After Chemotherapy." Journal of Clinical Oncology 25, no. 30 (2007): 4821–28. http://dx.doi.org/10.1200/jco.2006.08.7395.

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Purpose The SIGNIFICANT (Simple Investigation in Neutropenic Individuals of the Frequency of Infection after Chemotherapy ± Antibiotic in a Number of Tumours) trial reported a reduction in febrile episodes (FEs) among 1,565 patients with solid cancers and lymphomas receiving cyclical, myelosuppressive chemotherapy (causing grade 4 neutropenia) in a randomized, placebo-controlled, double-blind trial of levofloxacin (P = .01). In response to concerns that increased antibacterial prescribing selects for microbial resistance, we examined our data to explore the rationale for more limited prophylax

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Carvalho, Valdemar de Paula, Paulo Maurício Ruas, Claudete de Fátima Ruas, et al. "Recurrent selection effects on the genetic structure of maize landrace assessed by SSR markers." Cuadernos de Educación y Desarrollo 15, no. 12 (2023): 16063–81. http://dx.doi.org/10.55905/cuadv15n12-052.

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Recurrent selection method was applied in one maize landrace (Zea mays L.) population, Macaco, for one cycle of selection. In the present study the changes in genetic structure were investigated at 18 microsatellite loci. A total of 81 alleles were observed in cycle 0 (C0) population which 79 were maintained in cycle 1 (C1) population. Thus, a reduction of 2.5% in the allele frequency was observed after one cycle of selection in C1 population. The heterozygozity reduction was also observed after one cycle of selection. In nearly 44% and 55% of the loci evaluated in C0 and C1 populations, respe

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Zhang, Xuecai, Paulino Pérez-Rodríguez, Juan Burgueño, et al. "Rapid Cycling Genomic Selection in a Multiparental Tropical Maize Population." G3 Genes|Genomes|Genetics 7, no. 7 (2017): 2315–26. http://dx.doi.org/10.1534/g3.117.043141.

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Abstract Genomic selection (GS) increases genetic gain by reducing the length of the selection cycle, as has been exemplified in maize using rapid cycling recombination of biparental populations. However, no results of GS applied to maize multi-parental populations have been reported so far. This study is the first to show realized genetic gains of rapid cycling genomic selection (RCGS) for four recombination cycles in a multi-parental tropical maize population. Eighteen elite tropical maize lines were intercrossed twice, and self-pollinated once, to form the cycle 0 (C0) training population.

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Yazdankhah, Alireza, and Mojgan Fathalipourbonab. "Optimizing New Product Concept Selection Decisions Considering Life Cycle Design Attributes." International Journal of Modeling and Optimization 4, no. 2 (2014): 146–51. http://dx.doi.org/10.7763/ijmo.2014.v4.363.

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Jenkins, C. D. "Selection and the evolution of genetic life cycles." Genetics 133, no. 2 (1993): 401–10. http://dx.doi.org/10.1093/genetics/133.2.401.

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Abstract The evolution of haploid and diploid phases of the life cycle is investigated theoretically, using a model where the relative length of haploid and diploid phases is under genetic control. The model assumes that selection occurs in both phases and that fitness in each phase is a function of the time spent in that phase. The equilibrium and stability conditions that allow for all-haploid, all-diploid, or polyphasic life cycles are considered for general survivorship functions. Types of stable life cycles possible depend on the form of the viability selection. If mortality rates are con

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Arantes, Lúcio de Oliveira, Ângela de Fátima Barbosa Abreu, and Magno Antonio Patto Ramalho. "Eight cycles of recurrent selection for resistance to angular leaf spot in common bean." Crop Breeding and Applied Biotechnology 10, no. 3 (2010): 232–37. http://dx.doi.org/10.1590/s1984-70332010000300008.

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The genetic progress (GP) was evaluated after eight cycles of recurrent selection for resistance to angular leaf spot in common bean and indirect gain for yield and grain type. The base population (Cycle-0) was obtained from the diallel cross of seven lines with carioca grain and ten resistance sources. To obtain Cycle I, the most resistant S0 plants of Cycle 0 were intercrossed. The same procedure was adopted in the subsequent cycles. GP for resistance to the pathogen was estimated by the overall average of the progenies of each cycle in comparison with control Carioca MG and for productivity

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Monteverde-Penso, E., J. C. Wynne, T. G. Isleib, and R. W. Mozingo. "A Comprehensive Breeding Procedure Utilizing Recurrent Selection for Peanuts1." Peanut Science 14, no. 1 (1987): 1–3. http://dx.doi.org/10.3146/i0095-3679-14-1-1.

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Abstract A comprehensive breeding procedure for peanut (Arachis hypogaea L.) consisting of three stages — till development of a genetically broad-based virginia-type population, recurrent selection without extensive crossing for continued population improvement, and isolation of pure lines from high yielding families at each cycle of selection was initiated in 1974. Forty S1 families in S3 generation were selected from each cycle of selection. Only five families from cycle 0 outyielded the check cultivar. Florigiant, whereas yield of all selected families from the next two cycles exceeded the

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Arnott, Robert D., and William A. Copeland. "The Business Cycle and Security Selection." Financial Analysts Journal 41, no. 2 (1985): 26–32. http://dx.doi.org/10.2469/faj.v41.n2.26.

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Kamal, Neel, Seyed Nourbakhsh, and Christopher Cramer. "Reduced Iris Yellow Spot Symptoms through Selection within Onion Breeding Lines." Horticulturae 7, no. 2 (2021): 12. http://dx.doi.org/10.3390/horticulturae7020012.

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Iris yellow spot (IYS) disease in onion (Allium cepa L.) is caused by onion thrips (Thrips tabaci L.) vectored Iris yellow spot virus (IYSV). The absence of cultivars that are resistant/tolerant to thrips and/or IYS is a challenge for onion bulb and seed production worldwide. To measure selection progress for reduced/delayed IYS symptom expression in onion breeding lines after two selection cycles, selections were performed in 2011 on previously evaluated lines that exhibited a reduced symptom expression after one selection cycle. Selected plants from each line were massed in a cage and the re

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Barad, D. H., V. A. Kushnir, D. Albertini, S. Darmon, and N. Gleicher. "Does gender selection in donor-recipient cycles affect IVF cycle outcomes?" Fertility and Sterility 108, no. 3 (2017): e342-e343. http://dx.doi.org/10.1016/j.fertnstert.2017.07.1005.

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Shateryan, D., B. E. Coulman, and D. E. Mather. "Recurrent restricted phenotypic selection for forage yield in timothy and orchardgrass." Canadian Journal of Plant Science 75, no. 4 (1995): 871–75. http://dx.doi.org/10.4141/cjps95-144.

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Three cycles of recurrent restricted phenotypic selection for forage yield were carried out in orchardgrass (Dactylis glomerata L. 'Avon' and 'Pennlate') and timothy (Phleum pratense L. 'Salvo' and 'Drummond'). The objectives of this study were to measure the effectiveness of this selection and to assess whether the selection produced any correlated responses on other characters. The three selected cycles and the original populations (cycle 0) were evaluated in both sward and space-planted experiments over a period of 4 yr. For the majority of the years of evaluation, there were no significant

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Menezes Júnior, José Ângelo Nogueira de, Laércio da Silva Rezende Júnior, Gilmar Silvério da Rocha, et al. "Two cycles of recurrent selection in red bean breeding." Crop Breeding and Applied Biotechnology 13, no. 1 (2013): 41–48. http://dx.doi.org/10.1590/s1984-70332013000100005.

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This study was carried out for the purpose of estimating genetic progress after two cycles of recurrent selection in red bean breeding and of obtaining new lines. In cycle zero, F3:5 and F3:6 families were evaluated. In cycle one, the families were extracted in generation F5 and evaluated in generations F5:6 and F5:7. As the families were evaluated in different years and generations, the estimate of genetic progress was obtained by simultaneously evaluating the 30 best lines obtained at the end of each cycle in experiments conducted through three crop seasons. After two cycles of recurrent sel

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Sudika, I. Wayan, Muliarta A, Sudharmawan Sudharmawan, Dwi Ratna, and Idris Idris. "83 PENINGKATAN DAYA HASIL DAN STAY-GREEN TANAMAN JAGUNG MELALUI SELEKSI TANDEM DAN INDEPENDENT CULLING LEVEL DI LAHAN KERING." AGROTEKSOS: Agronomi Teknologi dan Sosial Ekonomi Pertanian 29, no. 1 (2020): 9. http://dx.doi.org/10.29303/agroteksos.v29i1.184.

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ABSTRAK  Tujuan penelitian adalah untuk mengetahui kemajuan seleksi tandem dan independent culling level selama tiga siklus di lahan kering dan mengetahui rerata daya hasil dan stay-green (brangkasan segar) populasi hasil seleksi dibanding dengan populasi awal dan varietas unggul Lamuru. Percobaan dirancang dengan rancangan acak kelompok, 3 blok di lahan kering Lombok Utara. Data dianalisa dengan analisis sidik ragam pada taraf nyata 5 persen. Rata-rata kemajuan seleksi per siklus setiap cara, diperoleh dari koefisien regresi antara karakter dengan siklus seleksi (populasi). Rerata perla

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Garcia, Antonio Augusto Franco, and Cláudio Lopes de Souza Jr. "Phenotypic recurrent selection to improve protein quality in non-opaque maize populations." Scientia Agricola 59, no. 4 (2002): 743–48. http://dx.doi.org/10.1590/s0103-90162002000400018.

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Maize (Zea mays L.) protein is considered to be of low quality due to low levels of the essential lysine and tryptophan amino acids. An alternative to solve this problem is to use the opaque-2 gene, which improves the level of these amino acids, but has negative pleiotropic effects on agronomic characters. A phenotypic recurrent selection scheme was carried out in two non-opaque maize populations to verify the possibility of improving their protein quality without using this gene. Four cycles were completed and a 20% selection intensity for tryptophan content in the kernels was used in two pop

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Wolyn, D. J., and W. H. Gabelman. "Selection for Betalain Pigment Concentrations and Total Dissolved Solids in Red Table Beets." Journal of the American Society for Horticultural Science 115, no. 1 (1990): 165–69. http://dx.doi.org/10.21273/jashs.115.1.165.

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Three cycles of half-sib family selection were practiced in a previously unselected table beet (Beta vulgaris L.) population to produce high pigment-high solids (HPHS) and high pigment-low solids (HPLS) populations. A selection index (total pigment concentration/percent dissolved solids) was used to improve the HPLS population and another selection index (total pigment concentration × percent dissolved solids) was used to improve the HPHS population. Rates of gain for total pigment were 22.2% per cycle in the HPHS population and 18.4% per cycle in the HPLS population. The HPHS and HPLS populat

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Invernizzi, Costante Mario, and Gioele Di Marcoberardino. "An Overview of Real Gas Brayton Power Cycles: Working Fluids Selection and Thermodynamic Implications." Energies 16, no. 10 (2023): 3989. http://dx.doi.org/10.3390/en16103989.

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This paper discusses and reviews the main real gas effects on the thermodynamic performance of closed Brayton cycles. Cycles with carbon dioxide as working fluids are taken as a reference and a comparison of the thermodynamic cycle efficiencies that are made with other possible working fluids (pure fluids and fluid mixtures). We fixed the reduced operating conditions, in optimal conditions, so that all working fluids had the same thermodynamic global performances. Therefore, the choice of the working fluid becomes important for adapting the cycle to the different technological requirements. Th

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Tobi, G., O. Benlhabib, S. Oumouss, et al. "Seed production potential evaluation of sugar beet half-sib families in Morocco." Journal of Agricultural Science 159, no. 7-8 (2021): 557–69. http://dx.doi.org/10.1017/s0021859621000800.

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AbstractIn Morocco, sugar-beet seed production represents a new challenge to meet the main breeding programme goals. The identification of a suitable zone for plant vernalization represents a bottleneck for seed production. This study aimed chiefly at evaluating the vernalization aptitude of 18 sugar beet half-sib progenies. Trials were conducted during three selection cycles in a specifically chosen environment. The experimental site of Merchouch is 40 km south-east of Rabat city. Field trials design is according to an open-pollinated experimental block. Yield components and five phenological

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Cintra, Pedro H. N., Cecília L. P. Resende, Leandro F. Damaso, Daniel D. C. Carvalho, Fernanda de C. Silva, and Fabricio Rodrigues. "Five cycles of intrapopulation recurrent selection in half-sib progenies of fresh corn." Revista Caatinga 36, no. 3 (2023): 723–30. http://dx.doi.org/10.1590/1983-21252023v36n324rc.

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ABSTRACT Fresh corn is a highly appreciated vegetable in Brazil; this crop has high added value and profitability when compared to dry corn. Despite the consumer market demand for quality, cultivars are not launched every crop season and there is a small number of cultivars available to growers. This denotes a need for breeding programs focused on generating information and genotypes that can occupy this market niche. The objective of this work was to evaluate the progress of five cycles of intrapopulation recurrent selection in half-sib progenies of fresh corn, in the southwest region of Goiá

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Bukan, Miroslav, Ana Mandić, Vinko Kozumplik, Ramsey S. Lewis, Domagoj Šimić, and Hrvoje Šarčević. "Effects of Recurrent Selection on Population Structure and Allele Frequencies in the M3S Maize Population." Agriculture 14, no. 1 (2023): 49. http://dx.doi.org/10.3390/agriculture14010049.

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The effects of four cycles of recurrent selection on the allele frequencies of simple sequence repeat (SSR) markers and population structure were examined in the Maksimir 3 Synthetic (M3S) maize population (Zea mays L.). Genotyping of 32 plants from each selection cycle at 38 SSR loci revealed that the mean number of alleles per locus and the mean expected heterozygosity were preserved across selection cycles, indicating the maintenance of sufficient genetic variability in the population required for future genetic gain. The Waples test of selective neutrality revealed that genetic drift was t

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Stratton, Donald A. "Life-Cycle Components of Selection in Erigeron annuus: I. Phenotypic Selection." Evolution 46, no. 1 (1992): 92. http://dx.doi.org/10.2307/2409807.

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Stratton, Donald A. "LIFE-CYCLE COMPONENTS OF SELECTION IN ERIGERON ANNUUS : I. PHENOTYPIC SELECTION." Evolution 46, no. 1 (1992): 92–106. http://dx.doi.org/10.1111/j.1558-5646.1992.tb01987.x.

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Sudika, I. Wayan, I. Gusti Made Arya Parwata, and I. Nyoman Soemeinaboedhy. "Respon Seleksi Massa Secara Tidak Langsung Terhadap Daya Hasil Tanaman Jagung Selama Tujuh Siklus Di Lahan Kering." JURNAL SAINS TEKNOLOGI & LINGKUNGAN 4, no. 2 (2018): 144. http://dx.doi.org/10.29303/jstl.v4i2.91.

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The objective of the research is to investigate the selection response indirectly on the corn yield in dry land, and the yield improvements of yield due to seven cycles. The selection method used were mass selection with and without pollination controll. The method used to minimize environmental effect during selection was subdivided block that (subselection block divided into small plots). In each plot, there was 40 plants, and the number plants selected were 5 %. Randomized Completely Block Design was used to study the selection result. The data collected were analyzed using Analysis of Vari

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Goldman, I. L. "047 Response to Selection for Anthocyanin Pigment Concentration in Wisconsin Fast Plant Populations by University of Wisconsin Students." HortScience 35, no. 3 (2000): 396D—396. http://dx.doi.org/10.21273/hortsci.35.3.396d.

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Wisconsin Fast Plants are rapid-cycling versions of various Brassica species amenable to a variety of genetic studies due to their short life cycle and ease of handling. I have recently developed a model system using Brassica rapa L. Fast Plants for teaching the cyclical selection process known as recurrent selection in the context of a course on plant breeding. The system allows for up to three cycles of recurrent selection during a 15-week semester and enables students to gain experience in planting, selection, pollination, and seed harvest during each cycle. Fourteen cycles of replicated, r

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Day, Christopher M., and A. M. Tahsin Emtenan. "Impact of Phase Sequence on Cycle Length Resonance." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 11 (2019): 398–408. http://dx.doi.org/10.1177/0361198119852069.

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The concept of resonant cycle length, that there are certain cycle lengths that may provide excellent progression owing to corridor geometry and other factors, has some currency as a potential strategy for cycle length selection. Past studies have identified resonant cycles under certain conditions and demonstrated benefits from use of the strategy as a means of selecting cycle length. The present study revisited the concept in application to flow-based models of traffic signal performance, highlighting the impact of phase sequence optimization. The phenomenon of cycle length resonance was exp

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Venuto, B. C., R. R. Smith, and C. R. Grau. "Selection for resistance to Fusarium wilt in red clover." Canadian Journal of Plant Science 79, no. 3 (1999): 351–56. http://dx.doi.org/10.4141/p98-005.

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In Wisconsin, Fusarium oxysporum, Schlect., a pathogen causing vascular wilt, is the most prevalent fungal pathogen recovered from diseased red clover (Trifolium pratense L.) plants. This study was conducted to determine the mode of inheritance for red clover resistance to this pathogen and to develop resistant germplasm. Virulent isolates of this pathogen, collected from red clover plants at the Ashland Research Station, Ashland, Wisconsin, were used to screen three populations, the red clover cultivars Arlington and Marathon and the C11 germplasm, for resistant plants. Plants were inoculated

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Wang, Shaoke, M. A. Brick, and C. E. Townsend. "Response of alfalfa to bidirectional selection for root bark area and xylem vessel diameter." Canadian Journal of Plant Science 71, no. 2 (1991): 427–35. http://dx.doi.org/10.4141/cjps91-059.

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Development of alfalfa [Medicago sativa L. ssp. sativa and M. sativa ssp. falcata (L.) Arcangeli] germplasm with contrasting root bark area and xylem vessel area could be useful to evaluate relationships between anatomical root characteristics and plant functions such as drought tolerance. This study was conducted to determine the response of alfalfa to bidirectional selection for root bark area and xylem vessel area of the largest vessels as viewed in cross section. Bidirectional selection for large and small root bark area and for large and small xylem vessel area was conducted for two cycle

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De Souza, T. C., E. M. De Castro, F. J. Pereira, S. N. Parentoni, and P. C. Magalhăes. "Morpho-anatomical characterization of root in recurrent selection cycles for flood tolerance of maize (Zea mays L.)." Plant, Soil and Environment 55, No. 11 (2009): 504–10. http://dx.doi.org/10.17221/110/2009-pse.

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Changes in root anatomical structures at successive cycles of selection (cycle 1 to cycle 18, alternating) were observed in the study of maize (<i>Zea mays</i> L. cv. Saracura-BRS 4154) capable to survive and produce in temporarily flooded soils; this cultivars was developed by the Maize and Sorghum National Research Center through stratified phenotypic recurrent selection for cultivation wetland soils. Field trial was carried out and flooding of the soil was initiated at the six-leaf stage; the soil was flooded with water (20-cm deep) three times per week. Root sample was collecte

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Doorbar, John. "Papillomavirus Life Cycle Organization and Biomarker Selection." Disease Markers 23, no. 4 (2007): 297–313. http://dx.doi.org/10.1155/2007/613150.

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Human papillomaviruses (HPVs) are a diverse group of viruses that cause epithelial lesions of varying severity. Of the 100 or so types that have been identified, around 40 can infect the cervix, with a subset of these causing lesions that can progress to high-grade neoplasia and cervical cancer. These high-risk types are prevalent in the general population, and can predispose to the development of cancer in women who cannot resolve their infection. Virus infection usually leads to the establishment of productive flat warts, or to maintenance of the viral genome in an asymptomatic or latent sta

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Woodhouse, Francis G., Aden Forrow, Joanna B. Fawcett, and Jörn Dunkel. "Stochastic cycle selection in active flow networks." Proceedings of the National Academy of Sciences 113, no. 29 (2016): 8200–8205. http://dx.doi.org/10.1073/pnas.1603351113.

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Active biological flow networks pervade nature and span a wide range of scales, from arterial blood vessels and bronchial mucus transport in humans to bacterial flow through porous media or plasmodial shuttle streaming in slime molds. Despite their ubiquity, little is known about the self-organization principles that govern flow statistics in such nonequilibrium networks. Here we connect concepts from lattice field theory, graph theory, and transition rate theory to understand how topology controls dynamics in a generic model for actively driven flow on a network. Our combined theoretical and

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Bellone, F., P. Musso, L. Nesta, and M. Quere. "Market selection along the firm life cycle." Industrial and Corporate Change 17, no. 4 (2008): 753–77. http://dx.doi.org/10.1093/icc/dtn025.

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Zhang, Chao, Jinglun Fu, Pengfei Yuan, and Jianjun Liu. "Guidelines for Optimal Selection of Subcritical Low-Temperature Geothermal Organic Rankine Cycle Configuration Considering Reinjection Temperature Limits." Energies 11, no. 11 (2018): 2878. http://dx.doi.org/10.3390/en11112878.

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General guidelines are proposed to select the optimal subcritical organic Rankine cycle configuration considering reinjection temperature limits for a low-temperature geothermal brine power plant. Saturated/superheated, non-regenerative/regenerative cycles are investigated. Evaporating temperature and overheating degree at the turbine inlet are selected as design variables, and highest plant exergy efficiency is pursued for current optimizations. Through theoretical analysis of mathematical modelling and typical case studies, a simple optimization approach is presented. The new approach consis

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Aguiluz, A., E. Navarro, F. Guerra, H. Córdova, and A. Oyervides. "Evaluación de cuatro ciclos de selección para resistencia al achaparramiento del maíz en la población 73." Agronomía Mesoamericana 6 (June 2, 2016): 88. http://dx.doi.org/10.15517/am.v6i0.24811.

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Twelve corn (Zea mays L.) cultivars were evaluated under two environments in Central America and one in Mexico in order to determine the genetic progress achieved for resistance to stunting, after four selection cycles of the population 73. The trial included the synthetics from the cycles 0, 1,2,3 and 4, composites from the cycles 2, 3 and 4, three tolerant control s N8-6, Santa Rosa 8073 and the hybrid H-53, and a susceptible control (hybrid 8-833). The percent averages of stunted plants were relatively low (between 10 and 20 %) at the three localities. The cycle 4 synthetic yielded an avera

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Al-Ghamdi, Mohammed A., and Khalid S. Al-Gahtani. "Integrated Value Engineering and Life Cycle Cost Modeling for HVAC System Selection." Sustainability 14, no. 4 (2022): 2126. http://dx.doi.org/10.3390/su14042126.

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Selecting a suitable heating, ventilation, and air-conditioning (HVAC) system is critical, because it impacts a building’s life cycle cost (LCC). Several factors affect the selection decision, such as quality, buildability, internal and external building appearance, HVAC size and weight, and LCC. These criteria are difficult to measure, as they are not based on agreed measurement units. Another challenging factor in the selection process is assessing the building’s function/performance and determining its HVAC needs. Currently, the decision depends mostly on expert knowledge, and there is no a

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