Wilson, V. and Tenkouano, Abdou and Wilson, G.F. and Swennen, Rony and Vuylsteke, D. and Ortiz, Rodomiro and Crouch, J.H. and Gauhl, F. and Pasberg-Gauhl, C. and Austin, P.D.
(2020).
Ten Year Progression of Musa Breeding from 1987 to 1997: 1. Pollination Success and Seed Production (Fecundity) Patterns among Multiple Ploidy Crosses.
Asian Journal of Research in Botany. 4
, 53-67
[Journal article]
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Abstract
Aims: To create genetic variability, produce seeds and ultimately develop disease resistant and agronomically desirable hybrids with good organoleptic quality bunches. Study Design: Multiple hand pollinations/ crosses in possible combinations of 2x, 3x and 4x as maternal/ seed and paternal/ pollen parents. Place and Duration of Study: International Institute of Tropical Agriculture High Rainfall Station (IITA), Onne, Rivers State, Nigeria. 1987 to 1997. Methodology: Utilizing over 320 landraces, varieties, cultivars, clones/ genotypes and IITA accessions obtained from plantain and banana growing regions worldwide, scientists performed numerous hand pollinations/ crosses in possible combinations of 2x, 3x and 4x as maternal/ seed and paternal/ pollen parents every day. Results: There were significant differences (P=.05) in number of seeds produced when diploids were used as maternal parents. Overall, 2x-2x produced 11times more seeds than the 2x-3x, and 54times more seeds than the 2x-4x. The 2x-2x crosses had double seed production maxima when crosses took place in June and July (8,300 seeds) and August and November (6,200 seeds) indicating a high level of fecundity. Only 2x-2x showed significantly positive correlation between seed production and pollination success (r = 0.617*). When triploids were maternal parents, there were significant differences (P=.05) in number of seeds produced. On average, 3x-2x produced 4times the number of seeds obtained from 3x-3x and 27times more than 3x-4x crosses. Seed production from triploids was 32times less than from diploids. The 3x-3x exhibited positively significant correlation between seed production and pollination success (r = 0.595*). With tetraploid maternal parents, there was significant difference (P=.05) in seed production when the male parent was diploid. High seed production (3,000-4,000) was achieved when pollination took place from June to October in the 4x-2x crosses. Seed production and pollination success in the 4x-2x were positively and highly significantly correlated (r = 0.865**). Conclusion: In all crosses, diploid males produced the most seeds and pollination success increased as ploidy of maternal parent increased from diploid to tetraploid especially with diploid males.
Authors/Creators: | Wilson, V. and Tenkouano, Abdou and Wilson, G.F. and Swennen, Rony and Vuylsteke, D. and Ortiz, Rodomiro and Crouch, J.H. and Gauhl, F. and Pasberg-Gauhl, C. and Austin, P.D. |
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Title: | Ten Year Progression of Musa Breeding from 1987 to 1997: 1. Pollination Success and Seed Production (Fecundity) Patterns among Multiple Ploidy Crosses |
Series Name/Journal: | Asian Journal of Research in Botany |
Year of publishing : | 2020 |
Volume: | 4 |
Page range: | 53-67 |
Number of Pages: | 15 |
Language: | English |
Publication Type: | Journal article |
Article category: | Scientific peer reviewed |
Version: | Published version |
Copyright: | Creative Commons: Attribution 4.0 |
Full Text Status: | Public |
Subjects: | (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Horticulture (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Genetics and Breeding |
Keywords: | genetic improvement, genome composition, ploidy level, ploidy cross types, maternal/seed parent, paternal/pollen parent |
URN:NBN: | urn:nbn:se:slu:epsilon-p-108026 |
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108026 |
ID Code: | 17779 |
Faculty: | LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap |
Department: | (LTJ, LTV) > Plant Breeding and Biotechnology (until 121231) |
Deposited By: | SLUpub Connector |
Deposited On: | 12 Oct 2020 09:26 |
Metadata Last Modified: | 15 Jan 2021 19:48 |
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