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Filtering by: Conference section Bees and Pollinators Remove constraint Conference section: Bees and Pollinators Degree Field Crop Science Remove constraint Degree Field: Crop Science Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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Pollination biology and pollinator alternatives in mermaid meadowfoam (Limnanthes alba Hartw. ex Benth.)

Creator:

Jahns, Thomas R.

Abstract:

Meadowfoam (cultivar Mermaid) is an entomophilous winter annual oilseed crop that has historically produced an average of only two of five seeds per flower. Reference to inadequate meadowfoam pollination exists in the literature, but quantitative evidence is lacking. Studies were undertaken to: 1) quantify meadowfoam pollination requirements and 2) evaluate...

Resource Type:

Dissertation

Full Text:

btween foraging-bee pollinators m4 and yield (kg ha1) over the five caged-pollinator treat- ments used in
Bees Associated with Linden (Tilia spp.) Trees and their Susceptibility to Toxic Sugars in Nectar

Creator:

Argoti, Adriana G.

Abstract:

Bees provide critical pollination services to diverse agricultural crops, native plants and trees. Globally, there are reports of bee declines which have been attributed to diseases, exposure to pesticides and changes in land use that are believed to have led to a reduction in foraging resources and nesting habitats for...

Resource Type:

Masters Thesis

Full Text:

: Bees Associated with Linden (Tilia spp.) Trees and their Susceptibility to Toxic Sugars in Nectar
Growth and development of three meadowfoam (Limnanthes spp.) lines

Creator:

Fiez, Timothy E.

Abstract:

Meadowfoam (Limnanthes R. Br. spp.), a source of C₂₀ and C₂₂ fatty acids, is a new industrial oilseed crop adapted to the Willamette Valley of Oregon. Increased oil yield per land area may increase the rate of meadowfoam commercialization. Using two half-sib L. floccosa x L. alba lines, 85-765 and...

Resource Type:

Masters Thesis

Full Text:

within a selection nursery using honey bees (Apis mellifera L.) as pollinators. The F2 (or So
Chemically induced male sterility and natural out-crossing in selected wheat cultivars (Triticum aestivum L. em Thell)

Creator:

Ekse, Ali Osman

Abstract:

Three chemicals SD 55446, SD 55447 and WL 84245 were found to induce male sterility in cultivars of wheat or triticale. Both SD 55446 and SD 55447 when applied at a concentration of 0.896 kg/ha resulted in 90% male sterility. However, SD 55447 caused female sterility at the same concentration...

Resource Type:

Masters Thesis

Full Text:

. A single drill strip was 3.1 m wide with male sterile to pollinator ratios being 1:1, 2:1 and 3:1
Chemically induced pollen supression and subsequent natural outcrossing in selected wheat cultivars (Tritcum aestivum L. en Thell)

Creator:

Lewis, Hal A.

Abstract:

Effective chemical control of pollination would provide an alternative to the cytoplasmic male-sterile system in hybrid wheat (Triticum aestivum L.) production. The objective of this study was to determine concentration, formulation, growth stage of application and genotypic effects on levels of induced pollen suppression and subsequent natural out-crossing from foliar...

Resource Type:

Masters Thesis

Full Text:

female treatments and one male pollinator, Johnson and Brown (1978) observed seed set in bagged spikes
Allozyme genetics and mating systems of Cuphea Laminuligera and Cuphea lutea

Creator:

Krueger, Sharon K.

Abstract:

Cuphea laminuligera Koehne and Cuphea lutea Rose in Koehne are undomesticated species having potential as oilseed crops. Genetic markers and mating systems have not been described for these species. Our objectives were to survey these species for allozyme variation, analyze the segregation and linkage of polymorphic loci, estimate autofertility and...

Resource Type:

Dissertation

Full Text:

Allozyme genetics and mating systems of Cuphea
Physiological and yield responses of meadowfoam to water stress and nitrogen fertilization

Creator:

Pearson, Calvin H.

Resource Type:

Dissertation

Full Text:

Burgett for supplying the honey bees and analyzing the pollen. I would also like to acknowledge the
Effects of floral position, stamen quality, hand pollination, and temperature during reproductive development on meadowfoam seed set and seed yield

Creator:

Alba, Elena L.

Abstract:

Inconsistent seed yields of meadowfoam (Limnanthes alba Benth.) interfere with profitable production of this new oilseed crop. Significant correlation of field grown meadowfoam seed yields with years having temperatures above 24°C in mid-May at Corvallis, OR., led to the hypothesis that ambient temperature during reproductive development affects meadowfoam seed yields....

Resource Type:

Masters Thesis

Full Text:

stands of meadowfoam. Arroyo (1975) suggests that fluctuations in pollinator availability and seasonal
Some agronomic practices of the vegetable seed industry of Oregon

Creator:

Groenveld, Menno

Resource Type:

Masters Thesis

Full Text:

colonies of bees in radish fields at bloorning timo increases sed yield. atorials and 5ethods of
Trinexapac-ethyl timing and rate effects on crimson clover (Trifolium incarnatum L.) seed yield and seed yield components

Creator:

Morad, Mohammed

Abstract:

Oregon is the world’s leading producer of crimson clover (Trifolium incarnatum L.) seed. Recent research has reported that seed yield has been increased in cool-season grass and red clover (T. pratense L.) seed crops with the application of trinexapac-ethyl, a gibberellic acid biosynthesis inhibiting plant growth regulator (PGR) and lodging-control...

Resource Type:

Masters Thesis

Full Text:

pollination and profitable seed production. The honeybee is crimson clover’s primary pollinator, whereas

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Academic Affiliation

Crop Science16
Crop and Soil Science16
Farm Crops1

Advisor

Jolliff, Gary D.7
Knapp, Steven J.4
Kronstad, Warren E.4
Chastain, Thomas G.2
Grabe, Don F.2
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1947 to 2017

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Committee Member

Boersma, Larry2
Elias, Sabry2
Hayes, Patrick M.2
Mallory-Smith, Carol2
Mata-Gonzalez, Ricardo2
more Committee Members »

Creator

Alba, Elena L.1
Ali, Md. Shahjahan1
Angsumalee, Duangporn1
Argoti, Adriana G.1
Beuselinck, Paul Richard1
more Creators »

Date

Date range begin – Date range end

Current results range from 1947 to 2017

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Decade

2010-20198
2000-20092
1990-19999
1980-198912
1970-19791
1940-19491

Degree Field

Crop Science[remove]33

Degree Level

Master's17
Doctoral16

Degree Name

Master of Science (M.S.)17
Doctor of Philosophy (Ph.D.)16

Language

English [eng]33

License

All rights reserved9

Non-Academic Affiliation

Oregon State University. Graduate School[remove]33

Peer Reviewed

No33

Resource Type

Masters Thesis17
Dissertation16

Rights Statement

Copyright Not Evaluated23
In Copyright10

Subject

Limnanthes4
Oilseed plants4
Cuphea3
Limnanthes -- Genetics2
Bees -- Food -- Oregon -- Corvallis1
more Subjects »

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