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1961•American Journal of BotanyRequires access

Cytology, Seed-Set, and Breeding Behavior of the Putative Inter-Generic Hybrid, Agroelymus turneri

Etlar L. Nielsen

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Abstract

Nielsen, Etlar L. (U. Wisconsin, Madison.) Cytology, seed-set, and breeding behavior of the putative inter-generic hybrid, Agroelymus turneri. Amer. Jour. Bot. 48(4): 340–344. Illus. 1961.—The estimated frequency of fertile florets in the natural hybrid, Agroelymus turneri, was 1 viable seed formed in every 277 and 240 florets in colonies grown at Madison, Wisconsin, and Fort Saskatchewan, Canada, respectively. Plant progenies propagated from seed taken from different colonies were: (1) uniformly similar to Agropyron repens; (2) uniformly similar to Elymus; or (3) segregating for Agropyron repens-like, Elymus-like, and Agropyron sp. characters. The parentage of the putative hybrid appears to be Agropyron dasystachyum × Elymus innovatus. This is based upon breeding behavior and cytological studies. The interpretation is at variance with the original proposal by l'abbe LePage that Agropyron smithii was a donor to the hybrid combination.

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Nielsen, Etlar L. (U. Wisconsin, Madison.) Cytology, seed-set, and breeding behavior of the putative inter-generic hybrid, Agroelymus turneri. Amer. Jour. Bot. 48(4): 340–344. Illus. 1961.—The estimated frequency of fertile florets in the natural hybrid, Agroelymus turneri, was 1 viable seed formed in every 277 and 240 florets in colonies grown at Madison, Wisconsin, and Fort Saskatchewan, Canada, respectively. Plant progenies propagated from seed taken from different colonies were: (1) uniformly similar to Agropyron repens; (2) uniformly similar to Elymus; or (3) segregating for Agropyron repens-like, Elymus-like, and Agropyron sp. characters. The parentage of the putative hybrid appears to be Agropyron dasystachyum × Elymus innovatus. This is based upon breeding behavior and cytological studies. The interpretation is at variance with the original proposal by l'abbe LePage that Agropyron smithii was a donor to the hybrid combination.

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Available abstract

Nielsen, Etlar L. (U. Wisconsin, Madison.) Cytology, seed-set, and breeding behavior of the putative inter-generic hybrid, Agroelymus turneri. Amer. Jour. Bot. 48(4): 340–344. Illus. 1961.—The estimated frequency of fertile florets in the natural hybrid, Agroelymus turneri, was 1 viable seed formed in every 277 and 240 florets in colonies grown at Madison, Wisconsin, and Fort Saskatchewan, Canada, respectively. Plant progenies propagated from seed taken from different colonies were: (1) uniformly similar to Agropyron repens; (2) uniformly similar to Elymus; or (3) segregating for Agropyron repens-like, Elymus-like, and Agropyron sp. characters. The parentage of the putative hybrid appears to be Agropyron dasystachyum × Elymus innovatus. This is based upon breeding behavior and cytological studies. The interpretation is at variance with the original proposal by l'abbe LePage that Agropyron smithii was a donor to the hybrid combination.

Key concepts: Agropyron, Elymus, Biology, Repens, Botany, Poaceae

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