Search Results - Wundt~

The effect of quality on gari prices in Nigeria: a hedonic analysis by Ezedinma, C.I., Nkang, N.

“…The effect of quality on prices is estimated under the hedonic function by means of logit model. Two hundred key informants were interviewed in 94 rural markets visited and 100 wholesale traders were interviewed in a big urban market in Lagos, a major commercial city in Nigeria. …”
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Genetic variability for grain yield and components in an early tropical yellow maize population under Striga hermonthica infestation by Badu-Apraku, Baffour, Menkir, A., Lum, F.

“…A major problem that usually confronts the breeder is ensuring that there is sufficient genetic variability in a population for the trait being improved because this determines the breeding schemes to use for improvement and whether or not sufficient progress could be made. Three hundred full-sib families from cycle 3 of the early maturing yellow endosperm maize (Zea mays L.) population, TZE-Y Pop DT STR, were evaluated under artificial Striga hermonthica infestation at Mokwa and Abuja, Nigeria in 2003. …”
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Resequencing of common bean identifies regions of inter- gene pool introgression and provides comprehensive resources for molecular breeding by Lobaton, Juan David, Miller, Tamara, Gil, Juanita, Ariza, Daniel, Hoz, Juan Fernando de la, Soler Garzón, Alvaro, Beebe, Stephen E., Duitama, Jorge, Gepts, Paul L., Raatz, Bodo

“…Evaluation of nuclear DNA content and analysis of copy number variation revealed important differences in genomic content not only between P. vulgaris and the two other domesticated Phaseolus species, but also within P. vulgaris, affecting hundreds of protein-coding genomic regions. A large number of inter–gene pool introgressions were identified. …”
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Banana Xanthomonas wilt: a review of the disease, management strategies and future research directions by Biruma, M., Pillay, M., Tripathi, L., Blomme, Guy, Abele, S., Mwangi, M., Bandyopadhyay, Ranajit, Muchunguzi, P., Kassim, S., Nyine, M., Turyagyenda, L.F., Eden-Green, S.

“…Disease symptoms include wilting and yellowing of leaves, excretion of a yellowish bacterial ooze, premature ripening of the bunch, rotting of fruit and internal yellow discoloration of the vascular bundles. Plants are infected either by insects through the inflorescence or by soil-borne bacterial inoculum through the lower parts of the plant. …”
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Using isozyme polymorphism to assess genetic variation within cultivated yams (Dioscorea cayenensis/Dioscorea rotundata complex) of the Republic of Benin by Dansi, A., Mignouna, H., Zoundjihékpon, J., Sangare, A., Asiedu, Robert, Ahoussou, N.

“…Four hundred and sixty-seven accessions of cultivated Guinea yam (Dioscorea cayenensis/Dioscorea rotundatacomplex) collected from different localities of Benin Republic were analysed to study isoenzymatic variability in seven enzyme systems: aspartate aminotransferase (AAT), esterase (EST), glucose-6-phosphate dehydrogenase (G6PDH), isocitrate dehydrogenase (IDH), phosphoglucomutase (PGM), phosphoglucoisomerase (PGI), and shikimate dehydrogenase (SKDH) using starch gel electrophoresis. …”
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Effect of direct-fed microbial addition in guinea fowl (Numida meleagris) diets on performance and health responses by Sarfo, G.K., Larbi, Asamoah, Hamidu, J.A., Donkoh, A.

“…The present study was conducted to investigate the effect of intermittent use of direct-fed microbial addition (DFM-“RE3®”) on growth performance and health status of indigenous guinea fowls in northern Ghana. One-hundred and eighty day-old guinea keets were randomly assigned to 4 direct-fed microbial (DFM) treatments that included: control, daily, 3 consecutive days per wk (3CDW), and 7 days repeated every other wk (7DREOW) at 1.5 ml/L through water from day 1 to 56 days. …”
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Data from: Resequencing of common bean identifies regions of inter-gene pool introgression and provides comprehensive resources for molecular breeding by Lobaton, Juan David, Miller, Tamara, Gil, Juanita, Ariza, Daniel, Hoz, Juan Fernando de la, Soler Garzón, Alvaro, Beebe, Stephen E., Duitama, Jorge, Gepts, Paul L., Raatz, Bodo

“…Evaluation of nuclear DNA content and analysis of copy number variation revealed important differences in genomic content not only between P. vulgaris and two other domesticated Phaseolus species, but also within P. vulgaris, affecting hundreds of protein-coding genomic regions. A large number of inter-gene-pool introgressions were identified. …”
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Does nitrogen matter for legumes? Starter nitrogen effects on biological and economic benefits of cowpea (Vigna unguiculata L.) in Guinea and Sudan Savanna of west Africa by Nurudeen, A.R., Larbi, Asamoah, Kotu, Bekele Hundie, Tetteh, F.M., Hoeschle-Zeledon, I.

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Pathogenic and genetic variation in Xanthomonas axonopodis pv. Phaseoli and its fuscans variant in Southern Africa by Fourie, D., Herselman, L.

“…Variation within pathogen populations has been reported and in order to breed for resistance it is important to investigate whether variation exists within the local pathogen population. One hundred and forty three common bacterial blight isolates from 44 localities in four countries, were inoculated onto eight Phaseolus acutifolius lines that differentiate between pathogenic races. …”
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Genetic advance in grain yield and other traits in two tropical maize composites developed via reciprocal recurrent selection by Kolawole, A.O., Menkir, A., Blay, E., Ofori, K., Kling, J.

“…The objectives of this study were to evaluate the effects of this selection scheme on: (i) the rate of genetic gain in grain yield and other traits, (ii) the changes in variance and heritability estimates, and (iii) changes in correlations between grain yield and other traits in the two tropical maize composites. One hundred S1 lines, each derived from the original (C0) and advanced (C4) cycles of the two composites, were crossed in pairs to form 100 C0 × C0 and 100 C4 × C4 testcrosses, which were evaluated along with 10 commercial hybrid checks in a replicated trial across eight environments in Nigeria. …”
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Making the most of imperfect data: A critical evaluation of standard information collected in farm household surveys by Fraval, Simon, Hammond, James, Wichern, Jannike, Oosting, Simon J., Boer, Imke J.M. de, Teufel, Nils, Lannerstad, Mats, Waha, Katharina, Pagella, Tim, Rosenstock, Todd S., Giller, Kenneth E., Herrero, Mario, Harris, David, Wijk, Mark T. van

“…Despite this rather bleak picture, our analysis also shows that if the same farm households are followed over time, the sample sizes needed to detect substantial changes are in the order of hundreds of surveys, and not in the thousands. Our research highlights the value of targeted and systematised household surveys and the importance of ongoing efforts to improve data quality. …”
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A note on variation in grain and straw fodder quality traits in 437 cultivars of rice from the varietal groups of aromatic, hybrids, Indica, new planting types and released varieti... by Virk, Parminder Singh, Xianglin, L., Blümmel, Michael

“…For example, key straw quality traits such as IVOMD varied between cultivars by at least 6.9% units in New Planting Types and up to 12.0% units in Varieties. …”
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Genetic variances and heritabilities of early yellow maize population following cycles of improvement for Striga resistance and drought tolerance by Badu-Apraku, Baffour, Ifie, B.E., Talabi, A.O., Obeng-Bio, E., Asiedu, Robert

“…An early yellow maize population, TZE-Y Pop DT STR that had undergone five cycles of selection for resistance to Striga, followed by three cycles of improvement for drought tolerance was investigated for yield gains, changes in genetic variances and interrelationships among traits under drought-stress and optimum environments. Two hundred and forty S1 lines comprising 60 each from the base population and subsequent populations from three selection-cycles improved for grain yield and drought tolerance, were assessed under drought and optimal environments in Nigeria, 2010 – 2012. …”
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Food partitioning between the Mara (Dolichotis patagonum) and the introduced hare (Lepus europaeus) in the Monte desert, Argentina by Bonino, Never Antonio, Sbriller, Alicia, Manacorda, Marcela M., Larosa, Francisco

“…In the semiarid Monte desert, Río Negro province, the mara (Dolichotis patagonum) and the European hare (Lepus europaeus), which was introduced about hundred years ago, today occur sympatrically, as in many regions of Argentina. …”
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Applications of biotechnology to citrus improvement in Spain by Navarro, Luis, Olivares-Fuster, Oscar, Juárez, José, Aleza, Pablo, Pina, José A., Ballester-Olmos, José F., Cervera, Magdalena, Fagoaga, Carmen, Durán-Vila, Núria, Pena, Leandro

“…It is used worldwide to recover plants free of all known citrus pathogens, and already hundreds of millions of trees originated in this technique have been planted in the field; b) Embryo rescue. …”
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Non-additive gene regulation in a citrus allotetraploid somatic hybrid between C. reticulata Blanco and C. limon (L.) Burm by Bassene, Jean Baptiste, Froelicher, Yann, Dubois, C., Ferrer, Rosa M., Navarro, Luis, Ollitrault, Patrick, Ancillo, Gema

“…Polyploid plants often produce new phenotypes, exceeding the range of variability existing in the diploid gene pool. Several hundred citrus allotetraploid hybrids have been created by somatic hybridization. …”
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Comparative analysis of core collection sampling methods for mandarin germplasm based on molecular and phenotypic data by García-Lor, Andrés, Luro, Francois, Ollitrault, Patrick, Navarro, Luis

“…In this study, several software packages (DARwin, PowerMarker and MSTRAT) and methods (Max length subtree, M strategy, simulated annealing and MinSD) were compared to define a mandarin (Citrus reticulata) CC. One hundred and sixty-seven accessions were sampled from two germplasm collections, which were genotyped with 50 SSR, 24 InDel and 68 single nucleotide polymorphism markers. …”
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The Altered Expression of microRNA408 Influences the Arabidopsis Response to Iron Deficiency by Carrio-Segui, Angela, Ruiz-Rivero, Omar, Villamayor-Belinchon, Laura, Puig, Sergi, Perea-Garcia, Ana, Penarrubia, Lola

“…Consistently with the low expression of the miR408-target laccases, we showed that the vascular bundle lignification of the 35S:408-14 plants diminished. …”
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Mating competitiveness and rate of sexual maturity of gamma-sterile Mediterranean fruit fly males by Katiyar, K.P.

“…To determine the effects of gamma sterilization with 6, 8, 6, and 10 kr on the sexual maturation rate and copulatory competitiveness of male Mediterranean fruit fly (Ceratitis capitata Wied, Diptera Tephritidae), studies were conducted in the laboratory and field at IICA-CTEI, Tivialba, Costa Rica. Five hundred fluorescent-powder-marked males (125 in each treatment) were caged with 250 age-matched virgin females. …”
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Asociaciones agroforestales en condiciones de bosque pluvial en el occidente de Colombia (Santa Cecilia-Risaralda) by Duque Nivia, Andrés Alberto

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