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Alfalfa termination strategies to conserve soil moisture for no-till crop establishment
(1997-05-01)
The ability of herbicides to terminate alfalfa in the fall or spring, and the feasibility of establishing wheat (cv. Roblin) and barley (cv. Bedford) was investigated. Parameters measured included soil moisture content ...
Physiological studies on a nonsymbiotic plant haemoglobin in a transgenic maize cell system
(1998-06-01)
Nonsymbiotic haemoglobins are broadly present across the plant kingdom, however, the function of these proteins is unknown. Cultured maize cells have been transformed to constitutively express a barley haemoglobin gene in ...
Alfalfa response to grazing, cultivar evaluation and visual modelling
(2000-05-01)
Interest in grazing alfalfa ('Medicago sativa' L.) is increasing among beef and dairy producers of the Northern Great Plains. Concerns over cultivar persistence and bloat have deterred more widespread acceptance of alfalfa ...
Purification and mode of action of PTR, Pyrenophora tritici-repentis, chlorosis toxin
(1997-12-01)
Pyrenophora tritici-repentis differentially induces tan necrosis and extensive chlorosis in its hexaploid wheat host. A chlorosis inducing host-specific toxin, termed the Ptr chlorosis toxin, has been identified from race ...
Crown development and architecture of Fraxinus pennsylvanica var. subintegerrima (Vahl) Fern. at different stages of growth and under different environmental conditions
(1997-09-01)
The objectives of the thesis were to examine spatial (crown location) differences and temporal (aging) differences on various aspects of F. pennsylvanica crown architecture characteristics. The major characteristics examined ...
Comparative water relations and drought tolerance among alfalfa cultivars
(1997-01-01)
This study examined several divergent alfalfa cultivars over a wide range of soil moisture conditions in controlled watering and natural (field) environments with the objective of characterizing potential differences in ...
Regulation and function of hemoglobin in barley aleurone tissue
(1997-09-01)
In this study, a barley Hb cDNA was demonstrated to also hybridize to genomic DNA sequences in rice, oat and bean, suggesting that barley Hb-like DNA sequences are widely distributed in the plant kingdom. The expression ...
Analysis of cis-regulatory elements in differential expression of the PR10 multigene family in pea (Pisum sativum)
(1999-09-01)
Genomic copies of 'PR10.1' and 'PR10.3', two members of the 'PR10' multigene family in 'Pisum sativum', were screened for 'cis'-regulatory elements associated with differential expression upon fungal and chemical challenges. ...
Genetic diversity of blue grama, Bouteloua gracilis, and little bluestem, Schizachyrium scoparium, as affected by selection
(2000-03-01)
There is a renewed interest in the use of native grasses in North America for agronomic, environmental, and ecological purposes. The need for commercial sources of genetically diverse native grass seed prompted the present ...
Vernalization response in spring oilseed rape, Brassica napus L.
(1997-04-01)
The effects of excess thyroid hormone (T3) on in vivo and in vitro muscle regeneration in control and mdx muscles were examined. The mdx mouse is a genetic model of Duchenne muscular dystrophy (DMD), but unlike DMD, the ...