Two experiments were conducted to determine the effects of
moisture stress on physiological changes that occur during the vegetative
and reproductive stages of the wheat (Triticum aestivum L.)
plant, and to relate these effects to seed yield, quality and performance.
In a field experiment, different levels of moisture stress were...
High protein wheat seeds frequently perform better than low
protein seeds of the same variety. Protein content of seeds can be
increased by management practices, the most important of which is
rate and timing of N applications. The purpose of this study was to
determine the chemical, biochemical and physiological...
The objective of this research was to identify the
optimum cultural practices for the production of the highest
quality wheat seed in Oregon. The production methods
included locations, irrigation, N levels and seeding rates.
The seed quality factors studied were seed weight, bushel
weight, protein content and seedling vigor.
Foundation...
The purpose of this study was to evaluate the effect of seed
protein content on plant growth of barley (Hordeum vulgare L. )
and wheat (Triticum aestivum L. ). The effects of nitrogen application
on chemical and morphological characteristics of the seed
were also studied.
Seeds of 'Casbon' winter barley...
The objectives of these experiments were to determine
the feasibility of saving seed from snap bean fields in the
Willamette Valley that have been bypassed for canning and
freezing, and to study the effects of different seed production
methods on yield and quality of snap bean (Phaseolus
vulgaris L.).
Field...
This study was undertaken to obtain information on the quality of grass seed when windrowed at the high moisture levels necessary for obtaining maximum yields. A secondary goal was to monitor moisture and temperature fluctuations in the windrow and to relate their effects to development and deterioration of the seed....
The objective of this study was to investigate ryegrass seedling characteristics that, by themselves, or combined with presently known characters, could improve varietal identification tests. Thirteen characters were studied on 30 varieties of Lolium multiflorum Lam., L. perenne L., L. rigidum Gaud, and L. hybridum Hausskn., including leaf size and...
The use of crownvetch (Coronilla varia L.) as a forage crop
might be increased considerably if seed with low hard seed content
could be made available at reasonable cost. Since mechanical scarification
damages a large percentage of crownvetch seeds, this study
was initiated to find other ways of reducing hardseededness....
The objective of this study was to develop a soaking and drying
procedure to stimulate the germination and seedling emergence of
orchardgrass (Dactylis glomerata L.) and Kentucky bluegrass (Poa
pratensis L.) seed. Some of the physiological changes associated
with the soaking and drying treatments were also studied.
The seed was...
This study was undertaken to standardize and evaluate the
tyrosinase test as a variety identification procedure for wheat. The
potential value of the tyrosinase test lies in its ability to quantify
the colored products, rather than relying on visual estimation as
in the phenol test.
The specific objectives of this...
The objective of this study was to develop a soaking and drying
procedure to stimulate faster germination of Kentucky bluegrass (Poa
pratensis L.) seed.
The seeds were soaked in cheesecloth bags in nine chemical
solutions. The effects of temperature and time of soaking and of
aeration of the solution were...
The purposes of this study were to determine the effects of
temperature, nutrients, growth regulators, and culm detachment
during seed development on ryegrass seed dormancy and weight.
The effects of storage temperature on seed dormancy were also
studied.
Seed dormancy of annual (Lolium multiflorum Lam.) and
perennial (Lolium perenne L.)...
Tests were carried on in growth chambers and in the field to
determine if the harvest of daylength-sensitive long-day cereals
grown during the winter in Arizona could be hastened 30 days by the
use of night interruption.
Two durum lines which were near-isogenic for sensitivity to
daylength were used throughout...