Suppression of female flowers and pollen fertility of male flowers of banana plants

Authors

  • Camille Ulrich Dzokouo Dzoyem Institute of Agricultural Research for Development, Njombe Multipurpose Station, PO Box 13 Njombe, Cameroon.
  • Lucien Ibobondji Kapuku Institut National pour l’Étude et la Recherche Agronomiques, Research Station of Kinzau, PO Box 2037 Kinshasa, Democratic Republic of Congo.
  • Zenabou Ndiang University of Douala, Faculty of Sciences, Plant Biology and Physiology Laboratory, PO Box 24157 Douala, Cameroon.
  • Gaetan Romaric Ngapmeu Tchabong University of Douala, Faculty of Sciences, Plant Biology and Physiology Laboratory, PO Box 24157 Douala, Cameroon.
  • Emmanuel Youmbi University of Yaoundé I, Faculty of Sciences, Department of Plant Biology, Laboratory of Biotechnology, Physiology and Plant Improvement Unit, PO Box 812 Yaoundé, Cameroon.
  • Frédéric Bakry 4 Avenue des Chasseurs, 34130 Saint Aunès, France.

Keywords:

Musa, genotype, hybridization, pollen inefficiency, sap flow, seed

Abstract

The objective of this work was to evaluate the effect of the suppression of female flowers on the pollen fertility of male flowers of banana plants. Two modes of female flower suppression, one partial and one complete, were applied shortly after flowering to diploid, triploid, and tetraploid banana genotypes. The effect of flower suppression on the number of male flowers and the length of their anthers was evaluated, as well as pollen viability and the size and number of pollen grains per anther. Pollination tests were performed to evaluate the number of seed obtained from the progeny of some genotypes. The total suppression of female flowers significantly increases pollen fertility, estimated by an increase in the number of pollen grains per anther (up to 80% per anther). Total female flower suppression also improves significantly seed production in the crosses (from 35 to 160% per pollinated bunch), which suggests a positive influence of the sap flowing through the bunch on the efficiency of banana pollen.

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Published

2024-03-22

How to Cite

Dzokouo Dzoyem, C. U., Kapuku, L. I., Ndiang, Z., Tchabong, G. R. N., Youmbi, E., & Bakry, F. (2024). Suppression of female flowers and pollen fertility of male flowers of banana plants. Pesquisa Agropecuaria Brasileira, 58(AA), e03376. Retrieved from https://apct.sede.embrapa.br/pab/article/view/27531

Issue

V.58, Jan./Dec., 2023 :Continuos publication

Section

GENETICS