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Flávia D. Pereira, José Eduardo B.P. Pinto, Luciana D.S. Rosado, Helen C.A. Rodrigues, Suzan K.V. Bertolucci and Osmar A. Lameira

The species Ananas erectifolius (L.B.Sm) (Bromeliaceae) is native to the Amazon region where it is known locally as “curauá” and finds application over a diverse range of purposes. The plant grows in poor sandy soil, attains a height of between

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Charles S. Krasnow and Mary K. Hausbeck

Pythium root rot causes significant losses in ornamental greenhouse production in Michigan, an industry worth an estimated $393 million ( U.S. Department of Agriculture, 2014 ). Pythium species infect roots and root hairs of ornamental plants

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Hassan Salehi and Morteza Khosh-Khui

Turfgrass seeds can be sown individually, in mixes, or overseeded to provide green color and uniform surfaces in all the seasons. This investigation was conducted to compare different turfgrass species and their seed mixtures. In this research, the turfgrasses—perennial ryegrass (Lolium perenne L. `Barball'), kentucky bluegrass (Poa pratensis L. `Merion'), common bermudagrass (Cynodon dactylon [L.] Pers.), and strong creeping red fescue (Festuca rubra L. var. rubra `Shadow')—in monoculture or in mixtures of 1:1 (by weight) and a 1:1:1:1 (by weight) and two sport turfgrasses—BAR 11 (Barenbrug Co.) and MM (Mommersteeg Co.)—were used. The seeds were sown in March and October (spring and fall sowing) in 1998 and 1999. The experiments were conducted in a split-split block design with year as main plot, sowing season as subplot, and turfgrass types as subsubplot. The turfgrasses were compared by measuring visual quality, chlorophyll index after winter and summer, rooting depth, verdure and/or root fresh and dry weight, tiller density, and clippings fresh and dry weight. Fall sowing was superior to spring sowing and resulted in greater root growth, clipping yield, and chlorophyll content. Poa+Cynodon seed mixture was the best treatment and had high tiller density, root growth, and chlorophyll content. Lolium and Festuca monocultures, and Poa+Festuca and Cynodon+Festuca seed mixtures were not suitable with regard to low tiller density, sensitivity to high temperatures, low root growth, and low tiller density, respectively. The cool-warm-season seed mixture (Poa+Cynodon) can be used alternatively in overseeding programs in the areas with soil and environmental conditions similar to this research site.

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Chu-Hui Chiang, Tsong-Ann Yu, Shu-Fang Lo, Chao-Lin Kuo, Wen-Huang Peng and Hsin-Sheng Tsay

Orchidaceae, commonly referred as the orchid family, is the second largest family of flowering plants, comprising more than 25,000 species distributed in 880 genera ( Gutierrez, 2010 ). Dendrobium is one of the largest genera in Orchidaceae and

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Thomas E. Marler, Anders J. Lindström and L. Irene Terry

Guam in recent years ( Moore et al., 2005 ), and it is among the invasive species that are collectively threatening the endemic Cycas micronesica K.D. Hill ( Marler and Lawrence, 2012 ). This insect depends on a sustained close relationship with

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Rebecca M. Harbut, J. Alan Sullivan, John T.A. Proctor and Harry J. Swartz

The cultivated strawberry was originally derived from the accidental hybridization of two wild, octoploid species, Fragaria chiloensis and Fragaria virginiana ( Darrow, 1966 ). The resulting octoploid hybrid, Fragaria × ananassa , is the basis

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Thomas E. Marler and Mark A. Lander

101 WORKSHOP 13 (Abstr. 669–674) Long-term Recovery Dynamics of Perennial Species Following Tropical Cyclone Damage

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Lumariz Hernandez Rosario, Juan O. Rodríguez Padilla, Desiree Ramos Martínez, Alejandra Morales Grajales, Joel A. Mercado Reyes, Gabriel J. Veintidós Feliu, Benjamin Van Ee and Dimuth Siritunga

The Solanaceae family is one of the major groups of angiosperms with ≈2500 species and 100 genera ( Filipowicz and Renner, 2012 ). The family contains species with agricultural and economical importance worldwide such as Solanum tuberosum

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Joseph Tychonievich and Ryan M. Warner

With 900 species, native to every continent except Antarctica and Australia ( Mabberly, 2008 ) and possessing a myriad of growth habits and flower colors, the genus Salvia represents an extraordinary range of diversity. Several species are widely

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Yifei Wang, Stephanie K. Fong, Ajay P. Singh, Nicholi Vorsa and Jennifer Johnson-Cicalese

Blueberry, as the second most important U.S. berry crop after strawberry, consists of several species that are native to North America ( Krewer and NeSmith, 2000 ). Within the Vaccinium genus and Cyanococcus section, three blueberry species have