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Potential and realized rates of vegetative reproduction in Spirodela polyrhiza, Lemna minor, and Wolffia borealis
The rate of vegetative propagule development was estimated in three duckweed species, Spirodela polyrhiza, Lemna minor, and Wolffia borealis, by measuring the number of daughter fronds produced over the life span of mother fronds, finding different rates of propagule production likely represent different reproduction strategies.
Shoot Development and Evolution in Pistia stratiotes (Araceae)
Understanding shoot development in flowering shoots has provided an explanation for the architecture of vegetative Pistia shoots, a series of repeating foliage leaves and reduced leaves that appear to be sterile (monopodized) shoots and have likely evolved from the sympodial flowering shoot system.
Comparative Shoot Development and Evolution in the Lemnaceae
It is suggested that the morphology of Lemnaceae plants can be understood as a result of the progressive simplification of shoots from Spirodela to Lemna to Wolffia, all of which have evolved from a Pistia‐like shoot system.
Shoot Morphology and Organogenesis of the Aquatic Floating Fern Salvinia molesta D. S. Mitchell, Examined with the Aid of Laser Scanning Confocal Microscopy
This investigation showed for the first time the development of serial lateral buds produced by S. molesta, as many as five at a mature node, and appears to be unique among ferns.
Los Alamos Scientific Laboratory building cost index
The Controller's budget request for FY-1979 established guidance for escalation rates at 6 to 8 percent for construction projects beyond FY-1976. The Los Alamos Scientific Laboratory (LASL) has
A new approach to the study of apical meristem development using laser scanning confocal microscopy
Laser scanning confocal microscopy is adapted to study development in whole shoot apices to map patterns of cell division on the surface of an apical meristem, which is extremely difficult using conventional techniques.
We examined the apical meristem of Salvinia molesta, an aquatic floating fern, using epi-illumination light microscopy, resin sectioning, scanning electron microscopy, and laser scanning confocal
Los Alamos National Laboratory Building Cost Index
The Los Alamos National Laboratory Building Cost Index indicates that actual escalation since 1970 is near 10% per year. Therefore, the Laboratory will continue using a 10% per year escalation rate
Los Alamos building cost index
Los Alamos PC estimating system
The Los Alamos Cost Estimating System (QUEST) is being converted to run on IBM personal computers and provides a set of tools for doing any type of estimate without forcing the estimator to use any given method.