Differential interspecific incompatibility among Populus hybrids in sections Aigeiros Duby and Tacamahaca Spach

A. Assibi Mahama; Richard Hall; Ronald S. Zalesny Jr.

doi:10.5558/tfc2011-096

Treesearch

Differential interspecific incompatibility among Populus hybrids in sections Aigeiros Duby and Tacamahaca Spach

Formally Refereed

Authors:

A. Assibi Mahama, Richard Hall, Ronald S. Zalesny Jr.

Year:

2011

Type:

Scientific Journal

Station:

Northern Research Station

DOI:

https://doi.org/10.5558/tfc2011-096

Source:

The Forestry Chronicle

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Download (PDF 170 KB): https://research.fs.usda.gov/download/treesearch/40072.pdf

Abstract

In our previous Populus breeding, compatible crosses between P. maximowiczii A. Henry and P. deltoides Bartr. ex Marsh corroborated the potential of interspecific hybrids, despite low seed set. Our current objective was to test the range of incompatibility among intraspecific and interspecific crosses using parental germplasm from the sections Aigeiros Duby (P. deltoides and P. nigra L.) and Tacamahaca Spach (P. maximowiczii). We determined the success rate of crosses, along with seed production and seedling viability. The success of crosses ranged from complete incompatibility to complete compatibility, with 29% to 85% of the transplanted germinants developing into healthy seedlings.

Keywords

forest genetics, tree improvement, hybridization, hybrid poplar, Populus deltoides, P nigra, P maximowiczii

Citation

Assibi Mahama, A.; Hall, Richard; Zalesny, Ronald. 2011. Differential interspecific incompatibility among Populus hybrids in sections Aigeiros Duby and Tacamahaca Spach . The Forestry Chronicle. 87(06): 790-796. https://doi.org/10.5558/tfc2011-096.