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Manjula S. Bandara, Karen K. Tanino, and Doug R. Waterer

90 POSTER SESSION 14 Growth Regulators/Cross-Commodity

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M. L. Albrecht and D. M. Crockett

128 POSTER SESSION 18 (Abstr. 763-787) Floriculture: Growth and Development

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Mario Pérez-Grajales, Víctor A. González-Hernández, Ma. Carmen Mendoza-Castillo, Cecilia Peña-Valdivia, Aureliano Peña-Lomelí, and Jaime Sahagún-Castellanos

Six manzano hot chile pepper landraces (Capsicum pubescens R & P) were evaluated to identify genotypes which might contribute toward obtaining superior hybrids by providing the following characteristics: low height, short internodes, rapid biomass accumulation, high harvest index, high fruit quality, and high photosynthetic rate. The landraces studied were `Chiapas', `Huatusco I', `Huatusco II', `Perú', `Puebla', and `Zongolica'. Plants were grown in a shaded glasshouse for 9 months, with drip irrigation. Growth, biomass distribution, fruit quality and yield were determined. All varieties exhibited advantageous characteristics, i.e., large fruit (60 mL) with thick pericarp (4.2 mm) in `Puebla'; short internodes (10 cm) in `Zongolica' and `Huatusco II'; high harvest index (0.24), high yield (18 to 19 t·ha−1) and high relative growth rates (0.12 g·g−1·d−1) in `Perú' and `Puebla'; and high dry mass accumulation (450 g/plant) in `Chiapas'. The highest photosynthesis rate in manzano hot pepper was 7.7 μmol of CO2/m2/s at 500 μmol photons/m2/s, in `Zongolica' and `Puebla'.

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Jonathan P. Lynch

MOST PLANTS ON EARTH ARE LIMITED BY SOIL CONSTRAINTS Edaphic (soil-related) factors are primary limitations to the growth of terrestrial plants. Periodic or seasonal drought is virtually ubiquitous. Few soils provide plant nutrients in optimal

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Meriam G. Karlsson and Jeffrey W. Werner

100 ORAL SESSION (Abstr. 566-572) FLORICULTURE: GROWTH REGULATION

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Meriam G. Karlsson and Jeffrey W. Werner

100 ORAL SESSION (Abstr. 566-572) FLORICULTURE: GROWTH REGULATION

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M.J. McMahon and J.W. Kelly

100 ORAL SESSION (Abstr. 566-572) FLORICULTURE: GROWTH REGULATION

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Sven E. Svenson

90 POSTER SESSION 14 Growth Regulators/Cross-Commodity

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Douglas A. Hopper and P. Allen Hammer

88 ORAL SESSION (Abstr. 528-533) FLORICULTURE: GROWTH AND DEVELOPMENT

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Smit le Roux and Graham H. Barry

vegetative growth. Goldschmidt (1988) hypothesized that factors contributing to invigorating growing conditions are antagonistic to optimal rind color development. The vegetative growth of citrus trees is stimulated by various exogenous factors, viz. high