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Relevant bibliographies by topics / Open-pollinated varieties (OPVs)

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Journal articles

Academic literature on the topic 'Open-pollinated varieties (OPVs)'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Open-pollinated varieties (OPVs)"

1

NDOLI, ALAIN, FRÉDÉRIC BAUDRON, TESFAYE SHIFERAW SIDA, ANTONIUS G. T. SCHUT, J. VAN HEERWAARDEN, and KEN E. GILLER. "DO OPEN-POLLINATED MAIZE VARIETIES PERFORM BETTER THAN HYBRIDS IN AGROFORESTRY SYSTEMS?" Experimental Agriculture 55, no. 04 (2018): 649–61. http://dx.doi.org/10.1017/s0014479718000297.

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SUMMARYA large body of evidence demonstrates the agronomic superiority of maize hybrids over open-pollinated varieties (OPVs) in intensive monoculture. However, comparisons of the performance of hybrids and OPVs in agroforestry systems are scarce. In this study, the performance of four maize hybrids and four OPVs is compared in sole crop and under mature trees. Experiments were conducted on-farm during four seasons in Bugesera, Rwanda and two seasons in Meki, Ethiopia. Two tree species were selected in Bugesera (Grevillea robusta and Senna spectabilis) and one in Meki (Acacia tortilis), and th

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2

OLISA, Babafemi S., Femi E. AWOSANMI, Michael S. AKINROPO, et al. "Differential response of commercial hybrid and open pollinated maize seeds to mechanical damage during seed processing." Notulae Scientia Biologicae 13, no. 4 (2021): 10738. http://dx.doi.org/10.15835/nsb13410738.

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Hybrids and open pollinated varieties (OPVs) are two commercial maize seed types cultivated in Nigeria. Information on their response to mechanical damage during processing is limited. This study is thus aimed at assessing the response of hybrids and OPVs of maize seeds to mechanical damage which would facilitate fabrication of processing facilities suitable for either of the maize types. Six maize varieties: three hybids (‘New Kaduna’, ‘SDM-1’, and ‘JO-195’) and three OPVs (‘Sammaz 15’, ‘Sammaz 27’ and ‘Suwan-1-stry’) were used for the study. The seed samples were subjected to standard germin

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3

Sigigaba, Masithembe, Lelethu Mdoda, and Asanda Mditshwa. "Adoption Drivers of Improved Open-Pollinated (OPVs) Maize Varieties by Smallholder Farmers in the Eastern Cape Province of South Africa." Sustainability 13, no. 24 (2021): 13644. http://dx.doi.org/10.3390/su132413644.

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This study assesses the determinants of adoption drivers of improved open-pollinated (OPVs) maize varieties by smallholder farmers in the Eastern Cape Province of South Africa. Cross-sectional data of multi-stage random sampling was used to randomly select 150 smallholder farmers in the province. Data collection was conducted through a well-structured questionnaire administered to 150 smallholder farmers. Descriptive statistics and a logistic regression model were used for the analyses. The inferential results reveal that the majority of farmers in the study area were females (70%) with an ave

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Babić, Vojka, Natalija Kravić, Jovana Živić, et al. "Grain Quality Within ex situ and in situ Conserved Traditional White Maize Landraces." Romanian Agricultural Research 35 (2018): 129–40. http://dx.doi.org/10.59665/rar3517.

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White maize had an important role in human nutrition throughout the Western Balkan region. A great number of farmers (approximately 86% in Serbia) still grow traditional white Open Pollinated Varieties (OPVs) for human diet. Out of 2217 maize landraces stored within Maize Research Institute „Zemun Polje” (MRIZP) gene bank, more than 700 are white kernel accessions. Eighteen white maize landraces, collected in the Western Balkan region in different periods, were selected for the present study. By the evaluation of agromorphological performances and the basic chemical composition of grain, the o

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Takim, Felix, Gbedabo Olaoye, Yakeen Abayomi, et al. "Evaluation of maize grain yield in drought-prone environment." Journal of Agricultural Sciences, Belgrade 62, no. 1 (2017): 15–29. http://dx.doi.org/10.2298/jas1701015t.

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Multi-location trial data obtained between 2007 and 2014 involving open pollinated varieties (OPVs) and hybrid maize (Zea mays L.) were analysed using GGE (Genotype and Genotype x Environment) and AMMI (Additive Main Effect and Multiplicative Interaction) models to assess their performance and suitability as cultivars, and identify promising genotypes and sites for further evaluations in the different locations of the southern Guinea savanna of Nigeria. The experiments were set up as a randomized complete block design with three replications in all the locations. The plot size consisted of two

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Bello, Omolaran, Odunayo Olawuyi, Sunday Ige, et al. "Agro-nutritional variations of quality protein maize (Zea mays L.) in Nigeria." Journal of Agricultural Sciences, Belgrade 59, no. 2 (2014): 101–16. http://dx.doi.org/10.2298/jas1402101b.

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Quality protein maize (QPM) combining the enhanced levels of lysine and tryptophan with high grain yield and desirable agronomic traits could reduce food insecurity and malnutrition in West and Central Africa. Twenty-two varieties of QPM and two local checks were evaluated for agronomic characteristics and nutritional qualities in the southern Guinea savanna of Nigeria for two years (2009 and 2010). Though crude protein levels are good indicators of quality, amino acid composition analyses, especially lysine and tryptophan that would provide a final proof are in progress. The genotypes compris

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7

Asungre, Peter Anabire, Richard Akromah, Alexander Wireko Kena, and Prakash Gangashetty. "Genotype by Environment Interaction on Grain Yield Stability and Iron and Zinc Content in OPV of Pearl Millet in Ghana Using the AMMI Method." International Journal of Agronomy 2021 (November 8, 2021): 1–10. http://dx.doi.org/10.1155/2021/9656653.

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Twenty-two open-pollinated varieties (OPVs) of pearl millet (Pennisetum glaucum) genotypes were tested in two locations for three seasons in Ghana to estimate the magnitude of genetic variability, heritability, and stability for grain yield and related traits and grain micronutrients among the varieties. General analysis of variance within and across locations and years revealed very highly significant variability ( p < 0.01 ) among the genotypes. The additive main effects and multiplicative interaction (AMMI) analyses revealed significant genotype × environment interaction (GEI) that influ

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8

Kambanje, Ardinesh, Amon Taruvinga, Abbyssinia Mushunje, Charles Mutengwa, and Saul Ngarava. "Determinants of Food Security Status amongst Smallholder Farmers Utilizing Different Maize Varieties in OR Tambo District, South Africa." Journal of Social Sciences Research, no. 62 (February 5, 2020): 133–39. http://dx.doi.org/10.32861/jssr.62.133.139.

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Maize is an important staple crop for poverty reduction and global food security in Sub Saharan Africa. Food insecurity can be combated through adoption of productivity improving technologies, which include improved maize varieties. In that endeavour, South Africa has promoted various improved maize varieties which include open pollinated varieties (OPVs), hybrids, and genetically modified (GM) varieties. Despite this, the traditional landrace varieties have also been dominating in the country. However, the household food insecurity problem in the Eastern Cape Province of South Africa may sign

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Kaul, Jyoti, Ramesh Kumar, Usha Nara, et al. "Development of Database of Maize Hybrids and Open Pollinated Varieties Released and Notified for Cultivation in India." Journal of Agricultural Science 9, no. 10 (2017): 105. http://dx.doi.org/10.5539/jas.v9n10p105.

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The maize database, first of its kind in India, is a central repository for cultivars i.e. hybrids and open pollinated varieties (OPVs) notified for cultivation in India since the inception of All India Coordinated Maize Improvement Project (AICMIP) in 1957. The database includes the information on cultivars developed from public as well as private breeding programmes. Besides, information on registered germplasm is also given. The database carries image gallery showcasing photographs of cobs/standing crop of the public-bred cultivars released after 1993.The database also presents information

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10

KAMARA, A. Y., A. MENKIR, B. BADU-APRAKU, and O. IBIKUNLE. "The influence of drought stress on growth, yield and yield components of selected maize genotypes." Journal of Agricultural Science 141, no. 1 (2003): 43–50. http://dx.doi.org/10.1017/s0021859603003423.

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The risk of drought is high in the Sudan savannah zone of West and Central Africa because rainfall in this area is unpredictable in quantity and distribution. Thus, improved maize genotypes tolerant to drought could stabilize maize grain yield in this zone, where recurrent drought threatens grain production. Six maize genotypes, two each of hybrids, open-pollinated varieties (OPVs) and landraces, were evaluated for tolerance to terminal water deficit before flowering. Water deficit significantly reduced growth, grain yield and yield components of the maize genotypes. Significant differences we

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