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Filtering by: Creator Erickson, John William Degree Field Forest Science

Growth and moisture relations of western hemlock seedlings as affected by root or shoot disturbance

Creator:

Morris, John W. (John William), 1954-

Abstract:

The need for increased efficiency in regeneration of western hemlock (Tsuga heterophylla (Raf.) Sarg.) requires greater understanding of seedling physiology. Experiments examined western hemlock seedling growth responses to in-bed root pruning, and pruning of shoots or roots prior to transplanting. Measurement of plant moisture stress (PMS) after physical root disturbance,...

Resource Type:

Masters Thesis
Efficient transformation of pinaceous gymnosperm cells by Agrobacterium

Creator:

Morris, John W. (John William), 1954-

Abstract:

Agrobacterium tumefaciens and Agrobacteriwn rhizogenes, the causal agents of crown gall disease and hairy root disease, are known for their ability to transfer part of their DNA (the T-DNA) from the bacterial tumor-inducing (Ti) plasmid to the genome of the host plant. Interest has focused on these bacteria because they...

Resource Type:

Dissertation