Index Catalog // ScholarsArchive@OSU

Seed yield and yield components of Pennfine perennial ryegrass (Lolium perenne L.) as influenced by time and rate of spring nitrogen and chemical dwarfing

Creator:: Young, William C. (William Clyde)
Abstract:: Seed yield in perennial ryegrass is the product of yield components that develop during the life of the plant. Crop yield potential is defined by the number of fertile tillers, spikelets per spike, and florets per spikelet. It has been shown that perennial ryegrass realizes only a small percentage of...
Resource Type:: Dissertation
Full Text:: would like to express his, sincere gratitude to his major Professor, Dr. Harold W. Youngberg, for the

The effect of residue removal and burning on the growth of Festuca longifolia Thuill. and Festuca rubra L. subsp. commutata Gaud. established for seed production

Creator:: Vollmer, Gregory S.
Abstract:: Hard Fescue (Festuca longifolia Thuill.) has potential for in creased turf use but does not respond well to normal seed production management practices in Oregon. Field burning (the normal residue management practice) results in reduced seed yields in commercial hard fescue seed production fields but stimulates seed production in Chewings...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS I wish to express special thanks to Dr. Harold Youngberg, my major professor, for his help and

The effect of date of planting, row spacing and seeding rate on seed yield and seed yield components of red clover (Trifolium pratense L.) in the Willamette Valley

Creator:: Echeverria, Eduardo M.
Resource Type:: Masters Thesis
Full Text:: Valley. Redacted for Privacy Abstract approved Harold -W. Youn The effects of various planting dates

Know your crops and weeds : activity guide for 4-H leaders [1985]

Creator:: Youngberg, Harold W.
Abstract:: Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Learning Object

Setting up contests in plant identification : tips for agents and leaders [1985]

Creator:: Youngberg, Harold W.
Abstract:: Reprinted July 1985. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Learning Object

Recognizing plants in the field : leader guide [1985]

Creator:: Youngberg, Harold W.
Abstract:: Leader guide to recognizing plants in the field. It helps to keep everyone safe by building on the knowledge of different plants.
Resource Type:: Learning Object

Introduction to grasses and legumes : a leaders' guide [1985]

Creator:: Youngberg, Harold W.
Abstract:: This lesson plan is designed to provide leaders in livestock and horse clubs with sufficient resource material on plant identification and evaluation. Leaders may then introduce plant identification and evaluation to members. Through the activities suggested and innovative use of presentations by club members, this lesson plan can broaden activities...
Resource Type:: Learning Object

Growth and forage quality of tall fescue (Festuca arundinacea schreb.) and perennial ryegrass (Lolium perenne L.) as affected by mefluidide

Creator:: Manurung, Sabam Oloan
Abstract:: Field study with 5 tall fescue genotypes treated at the vegetative growth stage, with 0, 0.28, 0.56, and 0.84 kg/ha of mefluidide was initiated in July, 1980. The regrowth of these plants were again treated at the booting growth stage in April, 1981, with the same rates of mefluidide as...
Resource Type:: Masters Thesis
Full Text:: support given throughout the duration of this study. Appreciation and thanks are extended to Dr. Harold W

1982 Seed production research at Oregon State University, USDA-ARS cooperating

Creator:: United States. Agricultural Research Service, Oregon State University. Dept. of Crop Science, and Youngberg, Harold W.
Resource Type:: Other
Full Text:: -ARS COOPERATING Introduction Harold Youngberg The viability of the seed industry of Oregon is

1983 Seed production research at Oregon State University, USDA-ARS cooperating

Creator:: United States. Agricultural Research Service, Oregon State University. Department of Crop Science, and Youngberg, Harold W.
Resource Type:: Other
Full Text:: -ARS COOPERATING Edited by Harold W. Youngberg Page Introduction 2 Detection of the Endophyte in

ScholarsArchive@OSU

Seed yield and yield components of Pennfine perennial ryegrass (Lolium perenne L.) as influenced by time and rate of spring nitrogen and chemical dwarfing

The effect of residue removal and burning on the growth of Festuca longifolia Thuill. and Festuca rubra L. subsp. commutata Gaud. established for seed production

The effect of date of planting, row spacing and seeding rate on seed yield and seed yield components of red clover (Trifolium pratense L.) in the Willamette Valley

Know your crops and weeds : activity guide for 4-H leaders [1985]

Setting up contests in plant identification : tips for agents and leaders [1985]

Recognizing plants in the field : leader guide [1985]

Introduction to grasses and legumes : a leaders' guide [1985]

Growth and forage quality of tall fescue (Festuca arundinacea schreb.) and perennial ryegrass (Lolium perenne L.) as affected by mefluidide

1982 Seed production research at Oregon State University, USDA-ARS cooperating

1983 Seed production research at Oregon State University, USDA-ARS cooperating

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Conference Section/Track

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Location

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search