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Filtering by: Committee Member Appleby, Arnold Advisor Crabtree, Garvin D.

Role of surfactants in foliar uptake of plant growth regulators

Creator:

Tan, Siyuan

Abstract:

Penetration of ¹⁴C-labeled plant growth regulators into the surface of apple (Malus pumila M.) leaves pre-soaked in 10 ml I⁻¹ solutions of surfactant was measured by detecting changes in radioactivity of the solution in glass cylinders sealed to the astomatal, adaxial surface of the leaf discs. Penetration of 2,4-D [(2,4-dichlorophenoxy)acetic...

Resource Type:

Dissertation

Full Text:

. Special thanks go to the members of my graduate committee: Drs. Arnold P. Appleby, Anita N. Azarenko
Modeling purple nutsedge (Cyperus rotundus L.) growth : preliminary evaluation of light intensity, soil moisture and herbicide effects

Creator:

Amerasinghe, A. A. L.

Abstract:

Purple nutsedge [Cyperus rotundas L.) has been recognized as one of the most troublesome perennial weeds of agricultural lands in tropical and some temperate regions. This research sought to determine the effects of timing of herbicides, shading, and soil moisture on plant population growth and tuber production of purple nutsedge...

Resource Type:

Dissertation

Full Text:

members of my graduate committee. Dr. Arnold P. Appleby, Dr. Steven R. Radosevich, Dr. Jack Stang, and
Enhancement of the weed competitive ability of lowland rice (Oryza sativa L.) cultivars

Creator:

Ranasinghe, Lakshman L.

Abstract:

Most of the presently grown cultivars of rice (Oryza sativa L.) have poor competitive ability against weeds if compared with traditional cultivars. Therefore, effective weed control is an important but often costly and difficult management practice in rice crop production. If weed competitive ability of rice cultivars could be improved...

Resource Type:

Dissertation

Full Text:

. Thomas, Steven R. Radosevich, Timothy L. Righetti and Arnold P. Appleby for their guidance, time and