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Distribution of buffalograss polyploid variation in the southern great plains

^a Dep. of Plants, Soils, and Biometerology, 4820 Old Main Hill, Logan, UT 84322-4820
^b Dep. of Agribusiness, Agronomy, Horticulture, and Range Management, Tarleton State Univ., Box T-0050, Stephenville, TX 76402
^c Dep. of Crop and Soil Science, Texas Tech Univ., Plant Science, Room 263, Lubbock, Texas 79409-2122
^d Dep. of Horticulture, 377 Plant Sciences, Univ. of Nebraska, Lincoln, NE 68583-0724

View larger version (55K): [in a new window]   Fig. 1. Historical distribution and potential adaptation of buffalograss across the USA.

View larger version (55K): [in a new window]   Fig. 2. Distribution patterns of the diploid (A), tetraploid (B), pentaploid (C), and hexaploid (D) buffalograss individuals from a collection in the southern Great Plains.

View larger version (18K): [in a new window]   Fig. 3. Relationship between buffalograss ploidy level of individual collections and associated average annual precipitation and spring precipitation at each site location.