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Combining High Yields and Blast Resistance in Rice ( Oryza spp.): A Screening under Upland and Lowland Conditions in Benin

Author

Listed:
  • Octaviano Igor Yelome

    (Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium)

  • Kris Audenaert

    (Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium)

  • Sofie Landschoot

    (Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium)

  • Alexandre Dansi

    (Faculté des Sciences et Techniques de Dassa, Laboratoire de Biotechnologie, Ressources Génétiques et Amélioration des Espèces Animales et Végétales (BIORAVE), Université d’Abomey, Cotonou, Benin)

  • Wouter Vanhove

    (Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium)

  • Drissa Silue

    (AfricaRice Center, 01 B.P. 2031, Cotonou, Benin)

  • Patrick Van Damme

    (Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium
    Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague 6–Suchdol, Czech Republic)

  • Geert Haesaert

    (Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium)

Abstract

The future security of the supply of rice for food in Africa depends on improving the level of local production to achieve self-sufficiency. In order to cope with the existing gap between production and actual demand, combining a high level of rice blast tolerance and a high-yield potential is necessary. The current study was conducted under upland and lowland conditions in Benin to gain insight into the performance of selected blast-resistant accessions along with some currently grown varieties. This study revealed a high phenotypic variability among these accessions. Furthermore, differences in the performance of these accessions under lowland and upland conditions were observed. Principal component analysis showed their grouping in three clusters. The analysis also demonstrated a high yield potential among the blast-resistant rice accessions whether they were Oryza sativa or O. glaberrima . Furthermore, there was a significant correlation between yield and both spikelet fertility and growth cycle duration. In conclusion, the present study identified promising rice accessions for future breeding. High phenotypic variability in combination with interesting traits can help to develop new resilient varieties. Finally, when the traits correlate with yield, they can be used as markers for an early screening method for identifying promising accessions at an early stage.

Suggested Citation

  • Octaviano Igor Yelome & Kris Audenaert & Sofie Landschoot & Alexandre Dansi & Wouter Vanhove & Drissa Silue & Patrick Van Damme & Geert Haesaert, 2018. "Combining High Yields and Blast Resistance in Rice ( Oryza spp.): A Screening under Upland and Lowland Conditions in Benin," Sustainability, MDPI, vol. 10(7), pages 1-16, July.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:7:p:2500-:d:158406
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    References listed on IDEAS

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    1. Shaosheng Jin & Bashiru Mansaray & Xin Jin & Haoyang Li, 2020. "Farmers’ preferences for attributes of rice varieties in Sierra Leone," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 12(5), pages 1185-1197, October.

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