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Creator:: Ebeltoft, David C.
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: development of spring wheat. Cooper (11) and Wanser (69) first demonstrated the effect of increased

Creator:: Currans, Sean
Abstract:: Seed vigor tests have been developed to evaluate the relative ability of seed lots to produce stands of seedlings in the field. Some workers have suggested the possibility of differentiating vigor levels by germinating seeds under osmotic stress, but have not conducted field trials to evaluate the usefulness of the...
Resource Type:: Masters Thesis
Full Text:: the efforts of G. Lakon, H. Bulat, R.P. Moore and others (ISTA, 1985), has also been used

Creator:: Ait Amer Meziane, Aomar
Abstract:: There is an increasing need for development of laboratory identification procedures for purposes of plant variety protection, seed certification, quality control and consumer protection. In the past there were fewer commercial varieties and field testing methods based on morphological differences were used satisfactorily. These tests require several months to complete...
Resource Type:: Masters Thesis
Full Text:: project. e. Sprague, Jacmar, White Holland, Barbee, Raeder, Wanser, and Golden were obtained from the

Creator:: Huber, Andrew Gail, 1944-
Abstract:: Wheat endosperm morphogenesis was studied by light microscopy during the entire growth period of anthesis to maturity. Four developmental stages have been described in this thesis: (1) double fertilization, (2) formation of the lower endosperm cells, (3) termination of nuclear divisions, and (4) initiation of protein bodies. The first manuscript...
Resource Type:: Dissertation

Creator:: Rotta, Benigno
Resource Type:: Masters Thesis
Full Text:: the graduate committee. I am deeply grateful to Dr. H. D. Bunch, Director of Interna- tional

Creator:: Than, Mya
Abstract:: Germinating seeds often encounter stress conditions of temperature, moisture and oxygen in the field. Germination tests conducted under these stress conditions in the laboratory might be methods of differentiating high and low vigor seeds. The objectives of this study were to (1) determine if these stress conditions reduce germination performance...
Resource Type:: Masters Thesis
Full Text:: septa. The percentages of 02 and N2 were regulated with a Matheson Flowmeter Model 7351 H (Matheson

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