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Histological Observations on Interspecific Crosses in the Genus Lupinus (1992)

Busmann-Loock, Almut ; Dambroth, M. ; Menge-Hartmann, U.

Oxford, UK : Blackwell Publishing Ltd

Plant breeding 109 (1992), S. 0

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ISSN: 1439-0523

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Notes: The hybridization barriers of interspecific lupin crosses were determined by histological investigations. The cross Lupinus hartwegii×L. mutabilis (both of American origin) revealed embryos in the cotyledonary stage as well as cellular endosperm. In the reciprocal combination, L. mutabilis×L. harwegii, embryo development stopped at the end of the globular stage, and simultaneously the coenocytic endosperm did no differentiate into the cellular state. In the combination L. luteus (European origin) ×L. hartwegii, embryo as well as endosperm development were initiated. Embryo development ended at any early globular stage. Twelve days after pollination the coenocytic endosperm had almost degenerated. With L. hartwegii as the female, no pollen germination could be observed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1439-0523.1992.tb00155.x

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Bamboo as a support material in anaerobic reactors (1993)

Tritt, W. P. ; Zadrazil, F. ; Menge-Hartmann, U. ; [et al.]

Springer

World journal of microbiology and biotechnology 9 (1993), S. 229-232

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ISSN: 1573-0972

Keywords: Anaerobic ; bamboo ; support material ; wastewater treatment

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology

Notes: Abstract The changes in 2.5-cm thick bamboo rings during their use as a support material in an anaerobic reactor show that the wash out and degradation processes are largely completed within 6 months to a year. The dry mass of the bamboo used decreased more quickly in the first half of the year than during the second half and asymptotically approached a loss limit of approximately 15% (w/w). The decrease in substances contained in the bamboo during the 2-year experimental period led to reductions in wall thickness of the rings of 0.8 mm and in the absorbable pressure of 21%. Bamboo thus appears to be suitable for long-term use in an anaerobic reactor.