Resultados de búsqueda - ZENIT~

Influence of available nitrogen and rice genotype on associative dinitrogen fixation por Malarvizhi, P., Ladha, J.K.

“…Because of the low levels and narrow range of genetic differences in associative N2 fixation, the potential for its improvement through breeding appears to be limited.…”
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Agro-morphological, physico-chemical and molecular characterization of rice germplasm with similar names of Bangladesh por Ahmed, Mir Sharf Uddin, Khalequzzaman, Mohammad, Bashar, Md. Khairul, Shamsuddin, A.K.M.

“…Thirty-one duplicate and similar named rice germplasms of Bangladesh were studied to assess the genetic variation for the agro-morphological and physico-chemical traits and simple sequence repeat banding patterns during 2009–2012 at Bangladesh Rice Research Institute. …”
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Genomic prediction of kernel zinc concentration in multiple maize populations using genotyping-by-sequencing and repeat amplification sequencing markers por Guo, Rui, Dhliwayo, Thanda, Mageto, Edna K., Palacios-Rojas, Natalia, Lee, Michael

“…Genomic selection (GS) has shown to be an effective approach to accelerate genetic gains in plant breeding. In the present study, an association-mapping panel and two maize double-haploid (DH) populations, both genotyped with genotyping-by-sequencing (GBS) and repeat amplification sequencing (rAmpSeq) markers, were used to estimate the genomic prediction accuracy of kernel Zn concentration in maize. …”
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Scaling success: Expanding community-based breeding programs for sheep and goats in Ethiopia por Tolemariam, Taye, Abegaz, Solomon, Getachew, Tesfaye, Haile, Aynalem, Mourad, Rekik, Belay, Berhanu, Rischkowsky, Barbara A.

“…The scaling approach adopted by the Sustainable Animal Productivity for Livelihoods, Nutrition, and Gender Inclusion (SAPLING) initiative, in partnership with the International Center for Agricultural Research in the Dry Areas (ICARDA), successfully expanded the implementation to 141 production unit villages, benefiting 9,212 households. This effort is closely tied to the community-based breeding programs (CBBPs), which provide improved genetic materials (Getachew et al., 2024). …”
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Achieving comprehensive water productivity improvement: a multi-objective simulation-optimization model for water productivity-oriented irrigation water management por Li, G., Zhang, C., Huo, Z., Liu, Y.

“…The Non-dominated Sorting Genetic Algorithm-III (NSGA-III) and Elite Opposition-Based Learning (EOBL) strategy are used to solve the problem and enhance the diversity of the randomly generated initial population accordingly, thus optimal solutions can be generated for supporting high-efficiency irrigation water use. …”
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Screening of exotic banana accessions for their resistance to fusarium wilt race 1 and tropical race 4 in India por Thangavelu, R., Loganathan, M., Backiyarani, S., Saraswathi, M. S., Uma, S., Edwinraj, E., Durai, P., Nithya, B., Roux, Nicolas, Selvarajan, R.

“…Some of these banana accessions show potential for direct commercial deployment in Fusarium wilt hot spot areas and/or could be used to identify resistant genes to further improve commercial cultivars through genetic engineering or gene editing techniques.…”
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Heterosis and line-by-tester combining ability analysis for grain yield and provitamin A in maize por Tabu, I., Lubobo, K., Mbuya, K., Kimuni, N.

“…The results showed that genetic parameters related to combining ability and heterosis among various F1 hybrids influenced all the studied traits except plant height. …”
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Characterization of the combining ability of maize inbred lines containing temperate germplasm using Striga‑resistant testers por Adekunle, D., Mengesha Abera, W., Abe, A., Meseka, S.K., Bunmi, B., Menkir, A.

“…To date, the benefit of the temperate inbred lines as a potential source of beneficial alleles for Striga hermonthica resistance breeding to enhance genetic gain in tropical maize has not been fully exploited. …”
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Genotype and environmental interactions in Maize (Zea mays L.) across regions of India: implications for hybrid testing locations in South Asia por Nagesh, Patne, Takalkar, Satish Ashok, Mohan, Sagala Murali, Naidu, Pulime Bhaskara, Lohithaswa, Hirenallur Chandappa, Kachapur, Rajashekhar M., Kuchanur, Prakash, Injeti, Sudhir Kumar, Singh, Narendra Kumar, Kanwade, Dinesh G., Shrestha, Jiban, Vivek, Bindiganavile

“…Therefore, this study was an extensive evaluation of elite maize hybrids across 12 locations in India to determine the G×E interactions in order to identify representative sites for CIMMYT product profiles for gaining resource efficiency while achieving enhanced genetic gains. …”
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Use of multi-trait principal component selection index to identify fall armyworm (Spodoptera frugiperda) resistant maize genotypes por Wambi, Wilber, Makumbi, Dan, Asea, Godfrey, Zeleke, Habtamu, Bruce, Anani, Wakgari, Mulatu, Kwemoi, Daniel Bomet, Boddupalli, Prasanna

“…The data were subjected to analysis of variance and PC analysis, and results used to construct two economic weight-free selection indices: PC1-based index (PC1BI) and PC2-based index (PC2BI). Broad-sense heritability estimates were 0.59 to 0.73 for LD, and 0.69 for GY. …”
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Engaging traders in strengthening seed systems in Tanzania: key drivers for selling grains of improved varieties of sorghum, common beans and groundnuts por Ong’or, Dennis, Ochieng, Justus, Mwakatwila, Atupokile, Mutua, Mercy, Radegunda, Kessy, Kelemera, Sylvia, Aseete, Paul, Mwenda, Emmanuel, Kadege, Edith, Madeni, Joachim, Rubyogo, Jean Claude

“…This scenario perpetuates the use of old varieties that are well known to traders, limiting potential benefits from genetic gains. In this study, we examine the factors that could influence traders’ decisions to sell grains of improved varieties. …”
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Pest outbreaks in tropical forest plantations: is there a greater risk for exotic tree species? por Nair, K.S.S.

“…It is concluded that the following factors determine the risk of pest outbreak in exotic monoculture plantations: (1) presence or absence of plant species closely related to the exotic; (2) extent of area under the exotic species; (3) genetic base of the planted stock; (4) distance from the native habitat of the exotic; (5) existence of serious pests in the native habitat of the exotic; (6) time elapsed since introduction; (7) chemical profile of the exotic species; and (8) innate biological attributes of the insects associated with a tree species. …”
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The changing face of pastoral systems in grass dominated ecosystems of Eastern Africa por Reid, Robin S., Serneels, S., Nyabenge, M., Hanson, Jean

“…Eastern Africa is a centre of genetic diversity for grasses. Six to eleven main grassland zones have been described. …”
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Crossbreeding for dairy production in the lowland tropics of Kenya. II. Prediction of performance of alternative crossbreeding strategies por Kahi, A.K., Nitter, G., Thorpe, W.R., Gall, C.F.

“…While the F X S cross was superior to the two-breed rotation for predicted MY, its performance was similar for MY expressed per unit of metabolic weight. Among the synthetic breeds, differences in MY expressed per unit metabolic weight were small. …”
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Variation in resistance to isometamidium chloride and diminazene aceturate by clones derived from a stock of Trypanosoma congolense por Peregrine, A.S., Knowles, G., Ibitayo, A.I., Scott, J.R., Moloo, S.K., Murphy, N.B.

“…Nine clones were derived from a drug-resistantTrypanosoma congolensestock (IL 2856) and characterized in mice for their sensitivity to isometamidium chloride and diminazene aceturate. …”
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Composition and in vitro gas production of whole stems and cell walls of different genotypes of pearl millet and sorghum por Zerbini, E., Krishan, C.T., Victor, X.V.A., Sharma, A.

“…This study points out the need to look in greater details at the relationship and the interactions between the effects of soluble and structural carbohydrates in stovers and the genetic base that determines it. Such studies could identify the most adequate combination of traits useful in crop improvement programs taking into account feed value of stover of dual-purpose crops.…”
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A description of growth, carcass and reproductive traits of Sabi sheep in Zimbabwe por Matika, O., Wyk, J.B. van, Erasmus, G.J., Baker, R.L.

“…A total of 4355 lamb and 4299 ewe records, obtained from Sabi sheep of Zimbabwe from 1984 to 1994, were analysed to describe growth, carcass and reproductive traits and to investigate non-genetic factors influencing their expression. Year of birth, sex, birth/rearing status of lamb, dam age, age of lamb and slaughter age were significant sources of variation for body weights, average daily gain, carcass and reproductive traits except for age (P>0.05) of lamb at 18 months of age, and ewe age for hot and cold carcass weight (HCW and CCW). …”
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How effective are DNA barcodes in the identification of African rainforest trees? por Parmentier, I., Duminil, J., Kuzmina, M., Philippe, M., Thomas, D.W., Duncan, T., Kenfack, D., Chuyong, G.B., Hardy, Olivier J.

“…We assess the accuracy of identification to species or genus using a genetic distance matrix between samples either based on a global multiple sequence alignment (GD) or on a basic local alignment search tool (BLAST). …”
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Identification of sources of resistance to fusarium root rot among selected common bean lines in Uganda por Mukankusi, Clare Mugisha, Melis, R, Derera, J., Laing, MD, Buruchara, Robin Arani

“…Large-seeded varieties and varieties with green hypocotyls tended to be more susceptible indicating genetic correlation between these traits and resistance to Fusarium root rot. …”
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Salinity tolerance in Phaseolus species during early vegetative growth por Bayuelo Jiménez, Jeannette Sofia, Debouck, Daniel G., Lynch, Jonathan P.

“…Characterization of the ecological adaptations of the wild species would be useful for improved understanding, conservation, and utilization of these genetic resources. Salinity tolerance during vegetative growth was evaluated for 132 accessions for 14 wild Phaseolus species (P. acutifolius A. …”
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