Many sediments, including the fine-grained pelagic deposits,
possess polymodal grain size distributions. Resolution of individual
modes show them to be related either to compositional fractions or to
depositional processes or both, and sometimes permits the tracing
of dispersal patterns. The Cahn sedimentation balance provides a
means of obtaining continuous cumulative...
Studies were conducted in 1969 and 1970 to evaluate the
effectiveness of an experimental herbicide, SD 30053 (alanine,
N-benzoyl-N-(3, 4-dichlorophenyl)-, ethyl ester), for wild oat
(Avena fatua L.) control in winter cereals.
The 1969 field studies showed that postemergence applications
of SD 30053 were effective in controlling wild oats. Wild...
The development of Easter lily Lilium longiflorum Thunb.
'Ace' bulblets from scales was used to study the influence of scale
pre-cooling, growing temp, and daylength on scale initiation,
scale "filling" (bulbing), and scale leaf formation. The development
of 'Croft', 'Ace', and 'Nellie White' daughter bulbs in field-grown
yearlings was also...
The relation of bud and cambial activity to root initiation and
elongation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)
stem cuttings was studied through two successive growth cycles.
Stem cuttings of current season's growth were taken periodically
from field-grown Douglas-fir trees to determine: (1) origin and
development of root initials; and...
Experiments were conducted to determine if the plagiotropic
growth habit of rooted cuttings of Douglas-fir might result from a
system favoring the accumulation of indoleacetic acid in the adaxial
side of the shoot in response to vertical placement.
Actively growing excised branch terminals were subjected to
gravitational disorientation to determine...