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Filtering by: Has journal Plant, Cell & Environment Remove constraint Has journal: Plant, Cell & Environment Advisor Kronstad, Warren E. Remove constraint Advisor: Kronstad, Warren E. Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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Factors associated with stand establishment and subsequent grain yield of seven wheat cultivars and selected progeny (Triticum aestivum, L em thell) when grown under three diverse environments

Creator:

Vahabian, Mohammad Ali

Resource Type:

Dissertation

Full Text:

, number of spikes/plot, number of spikelets/spike, number of kernels/spikelet, kernel weight, plant
Tissue culture and plant regeneration from immature embryo explants of twenty-two genotypes of barley, Hordeum vulgare L.

Creator:

Goldstein, Cindy S.

Abstract:

Immature embryo explants taken eight days after anthesis were used to establish callus cultures of spring barley. Two types of calli were observed. A soft watery callus which produced a limited number of shoots and a harder yellowish callus that gave rise to numerous green primordia and shoots. Gamborg's B5...

Resource Type:

Masters Thesis

Full Text:

rneristem cultures of certain plant species. Cytokinins are provided to stimulate cell division and thus to
Aluminum toxicity studies in rice (Oryza sativa L.)

Creator:

Martinez-Racines, Cesar P.

Abstract:

A nutrient solution technique developed for wheat was used to determine tolerance of rice cultivars to aluminum (Al) toxicity. Pre-germinated rice seed was placed on top of a screen and allowed to grow on the Al-free solution for 72-96 hours or until the primary root was 2-3 cms long. Seedlings...

Resource Type:

Dissertation

Full Text:

. Aluminum also penetrated the epidermis and cortex. Cell desintegration and desorganization were noticed as
The influence of plant densities on gene action estimates and associations in seven winter wheat parents and their F₂ progeny

Creator:

Saini, Surinder Kumar

Abstract:

The F₂ progeny from a diallel cross involving seven winter wheat parents along with the parents were grown at the Hyslop Agronomy Farm near Corvallis, Oregon to determine the influence of three plant densities on gene action estimates for yield and its primary components. The plant densities were designed to...

Resource Type:

Dissertation

Full Text:

importance to the plant breeder for partitioning the total variance into that caused by the environment and
Production of haploid plants in selected winter wheat genotypes through anther culture and intergeneric crosses with maize

Creator:

Mendoza, Maria Graciela

Abstract:

A higher level of efficiency in the production of doubled-haploids must be achieved if this procedure is to be beneficial in plant improvement. Of equal importance is the development of protocols, which are not genotypic specific and result in progeny that represent a random sample of gametes from the parental...

Resource Type:

Dissertation

Full Text:

anther donor plant environment (Bjornstad et al., 1989; Jones and Petolino, 1987; Simmons, 1989), pollen
Adaptability of winter wheat cultivars to dryland conditions and their response to water stress

Creator:

Keim, Don Lee

Abstract:

Winter wheat cultivars (Triticum aestivum) were evaluated for their response to water stress and adaptability to a wide range of moisture limited environments. Grain yield was analyzed for ten cultivars at six locations across four years. Regression of the cultivar mean on the year-location mean was used as a measure...

Resource Type:

Dissertation

Full Text:

avoidance of turgor loss under stress by the accumulation of sufficient cell solutes. With plant turgor
The expression of embryo maturation genes in wheat and the role of abscisic acid

Creator:

Berge-Chandler, Sonja Kay

Abstract:

A set of genes which show developmental and tissue specificity are expressed late in embryo maturation during grain formation in wheat (Triticum aestivum). Two members of this maturation gene set (MGS) are Em and triticin, a 7S globulin. Results presented here show that during embryogenesis, the expression of Em mRNA...

Resource Type:

Dissertation

Full Text:

promote cell division in plant tissues (Horgan, 1984) and the concentration of cytokinins in lupin seeds
Nature of inheritance and association of time, duration and rate of grain filling and subsequent grain yield in crosses of winter and spring wheats (Triticum aestivum L. em Thell)

Creator:

Choi, Byung Han

Abstract:

The nature of inheritance and possible associations for traits influencing earliness and grain yield were investigated using a four parent diallel of winter and spring wheat cultivars. More genetic variability was observed for the traits measured in segregating populations resulting from crosses between winter and spring type wheats in contrast...

Resource Type:

Dissertation

Full Text:

plant height where more genetic variability resul- ted from spring x spring crosses. Narrow sense
Ultrastructural study of the embryo during germination involving douglas fir (Pseudotsuga menseizii Franco) seeds

Creator:

Hsu, Kay Yong-Yong

Abstract:

The seeds of Douglas fir, a representative of the gymnosperm flora, were studied at six stages of germination to discern the structures of food reserves and to study ultrastructural changes occurring during germination in the embryo and resulting seedlings. The materials were fixed in three fixatives, dehydrated with ethanol series,...

Resource Type:

Masters Thesis

Full Text:

The seed is a product of reproduction from which a new plant will grow when the environment is
Influence of aluminum toxicity in intergeneric crosses of wheat and rye

Creator:

Lopez-Benitez, Alfonso

Abstract:

A technique previously designed to screen wheat cultivars and segregating populations for tolerance to Aluminum utilizing nutrient solutions in growth chambers was found to be efficient in differentiating among cultivars of wheat, rye, and triticale for tolerance to Al under greenhouse conditions. A 5°C increase in temperature, from 25°C to...

Resource Type:

Dissertation

Full Text:

, rye and triticale within the first three hours of Al treatment. Cell division decreased as exposure

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Academic Affiliation

Crop Science9
Agronomic Crop Science7
Crop and Soil Science5
Farm Crops2

Advisor

Kronstad, Warren E.[remove]27

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1968 to 1999

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Committee Member

Hayes, Patrick M.3
Baggett, J. R.2
Broich, S.2
Chilcote, W. W.2
Petersen, R. G.2
more Committee Members »

Creator

Mou, Beiquan2
Albahouh, Muhammed S.1
Ammar, Karim1
Berge Chandler, Sonja Kay1
Boulger, Mary Caroline1
more Creators »

Date

Date range begin – Date range end

Current results range from 1967 to 1998

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Decade

1990-19997
1980-19898
1970-19799
1960-19693

Degree Field

Crop Science13
Agronomic Crop Science7
Genetics4
Farm Crops2
Crop and Soil Science1

Degree Level

Doctoral19
Master's8

Degree Name

Doctor of Philosophy (Ph.D.)19
Master of Science (M.S.)8

Language

English [eng]27

Non-Academic Affiliation

Oregon State University. Graduate School[remove]27

Peer Reviewed

No27

Resource Type

Dissertation19
Masters Thesis8

Rights Statement

Copyright Not Evaluated27

Subject

Wheat -- Genetics5
Wheat3
Wheat -- Breeding2
Wheat -- Research2
Wheat -- Varieties2
more Subjects »

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