Interspecific hybridization between Coffea arabica L. and tetraploid C. canephora P. ex Fr. I. Fertility in F1 hybrids and backcrosses to C. Arabica |
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| Authors: | J. B. O. Owuor H. A. M. Van Der Vossen |
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| Affiliation: | (1) Coffee Research Station, Ruiru, Kenya |
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| Abstract: | Summary The interspecific (C. arabica × tetraploid C. canephora) F1 hybrid showed a low but highly variable fertility. An almost complete restoration to normal fertility was observed in individual trees of BC1 and BC2 generations with C. arabica as recurrent parent. From a comparison of various tests of fertility, it was found that pollen viability is a satisfactory measure of fertility. |
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| Keywords: | Coffea arabica tetraploid Coffea canephora interspecific hybrids backcrosses pollen and female fertility |
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