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Diana M. Cheng, Gad G. Yousef and Mary Ann Lila

USDA germplasm repository and are representative varieties from a range of geographic locations. Both genetic diversity and the plant's ecological environment may influence phytoecdysteroid levels ( Volodin et al., 2002 ). There were over 300 accessions

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Ian G. Lane, James Wolfin, Eric Watkins and Marla Spivak

( Young-Mathews, 2012 ), suggesting that the low moisture retention of sandy soils may not favor its growth. Studies on the distribution of T. serpyllum suggest that it is most commonly found in dry and human disturbed areas, although it can tolerate

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Richard Martinson, John Lambrinos and Ricardo Mata-González

ecological functions of a sagebrush steppe plant association in the East Cascades Slopes and Foothills ecoregion. The landscape was designed to meet the water conservation standards under the Living Building Challenge, and it was actively used by the

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Neil O. Anderson

[propagule pressure hypothesis ( Colautti et al., 2006 )]. Other factors that have occurred in the history of studying invasive species leading to spurious assumptions regarding spread and control include ignorance of historical distribution of the species

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Junhuo Cai, Junjun Fan, Xuying Wei and Lu Zhang

dynamics of biomass distribution, climate-associated phenology, and physiologic bulb characteristics. Our results give insights into the mechanisms underlying summer dormancy, and provide a framework for both future ecologic research on Lycoris and the

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Andrew R. King, Michael A. Arnold, Douglas F. Welsh and W. Todd Watson

Baldcypress, Taxodium distichum (L.) Rich., is a highly adaptable tree of significant ecological importance in the southeastern United States ( Arnold, 2008 ; Pezeshki and DeLaune, 1994 ). Baldcypress is typically propagated commercially from

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D. Michael Jackson, Howard F. Harrison, Robert L. Jarret and Phillip A. Wadl

.5576, R 2 = 0.0277, N = 633, P < 0.00001). All accessions with average canopy coverage ratings of 1 or 2 had a length × width of less than 250 cm 2 (range 40.1–432.0 cm 2 ) ( Figs. 1 and 2 ). Fig. 1. Frequency distribution of average petiole lengths

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Y.L. Qian, J.M. Fu, S.J. Wilhelm, D. Christensen and A.J. Koski

.W. 1968 Grass systematics McGraw-Hill Book Company New York Hansen, D.J. Dayanandan, P. Kaufman, P.B. Brotherson, J.D. 1976 Affecting its growth ecological adaptations of salt marsh grass, Distichlis

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Thomas E. Eickhoff, Tiffany M. Heng-Moss and Frederick P. Baxendale

hairy chinch bug ( Blissus leucopterus hirtus Montandon), and the southern chinch bug ( Blissus insularis Barber) are considered serious turfgrass pests. These four chinch bug species are part of a chinch bug complex that have a wide distribution

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Shujun Zhou, Guixue Zhou and Kehu Li

), which is the same as the expected peak of aneuploid gametes produced by triploid lilies. Fig. 5. Overall distribution of the frequency of eggs with different chromosome numbers produced by auto- and allotriploid lilies. Data on autotriploids from the