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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:: . Regeneration of plantlets was achieved for 19 of the 20 genotypes approximately 4 months after culture

Inheritance of plant height in barley (Hordeum vulgare L. Emed. LAM.)

Creator:: Bayraktar, Ali
Abstract:: Four, six-rowed, spring barley cultivars were used as parental material in this study. The parents were distinctly different in plant height. Washington-6124-62 is a standard height selection while Short Wocus and Minn. 66-102 are intermediate. The fourth parent was a dwarf selection obtained from India. The two intermediate cultivars and...
Resource Type:: Masters Thesis
Full Text:: investigated in a growth chamber utilizing two temperature levels, 19° C and 30° C. Plant height was recorded

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:: ............... ...... ......... ......... ......... ......... 18 2.2.2. Cultural factors......... ...... ................................. ...... 19 2.3. ANTHER

Modifying selected factors to classify levels of resistance or tolerance in wheat to Septoria Tritici Blotch

Creator:: Re, Jose Vicente
Abstract:: Influence of abiotic and biotic factors were examined in selected winter wheats previously identified as representing a range of responses to septoria infection. In the greenhouse two and three inoculations identified resistance when disease severity was assessed either for the top four leaves or the flag leaf respectively. Kernel number...
Resource Type:: Dissertation
Full Text:: and 1985-86. 19. Mean grain yield per spike (g) from entries receiving different inoculation

Influence of planting density on spike size and grain yield in five winter wheat cultivars

Creator:: Wang, Shi Ping, 1956-
Resource Type:: Masters Thesis
Full Text:: MATERIALS AND METHODS 17 1986-87 Experiment 17 1987-88 Experiment 18 Statistical Procedures 19 RESULTS 20

Durum wheat quality and its relation to electrophoretic banding patterns

Creator:: Encinas-Mungarro, Andrés
Abstract:: Physical properties of gluten and pigment content are of primary importance in determining quality in durum wheat (Triticum turqidum L. var. durum). The objective of this investigation was to evaluate the contribution of different -y-gliadin protein subunits in durum wheat pasta quality as measured by the sodium dodecyl sulphate microsedimentation...
Resource Type:: Masters Thesis
Full Text:: means. 19 20 21 22 LIST OF TABLES Table Page 1 Characterization of fourteen durum wheat

Possible compensations of the components of grain yeild in wheat (Triticum aestivum L.) as influenced by genotype by environment interactions

Creator:: Bedoshvili, David
Abstract:: Despite many investigations genotype by environment interaction remains one of the least understood factors in plant improvement. Understanding genotypic differences responsible for such interactions could assist in making more informed breeding decisions. The components of yield being less complex than grain yield per se may be useful for selection to...
Resource Type:: Dissertation
Full Text:: 2.3 Associations between yield components 19 2.4 Protein concentration 23 2.5 Grain hardness 31

Compensating effects and gene action estimates for the components of grain yield in winter wheat (Triticum aestivum, L. em Thell)

Creator:: Abi-Antoun, Michel
Abstract:: Five winter wheat cultivars and their diallel crosses were evaluated for plant height, harvest index, deading-maturity duration, the components of yield, (spikes per plant, spikelets per spike, kernel weight and kernels per spikelet)and total plant yield. Two diverse locations, Moro, a dryland site (250 mm annually) located in central Oregon...
Resource Type:: Dissertation
Full Text:: . n 10 for More 1975 and Hy-slop 1975 and n 6 for Hyslop 1974. 19. Parent progeny regression (b) and

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:: in 12 inch plant spacings Page 19 23 24 25 26 30 32 34 9 Heritability estimates for yield

Genotype-environment interaction in winter wheat F₁ progeny

Creator:: Peterson, C. J.
Abstract:: Seven winter wheats were evaluated for plant height, the components of yield and yield in a diallel cross at Pendleton, Oregon and Lind, Washington. An additional parent was added to the diallel cross at Pullman, Washington. Two levels of nitrogen and five replications were utilized at each of the locations....
Resource Type:: Dissertation
Full Text:: effects 45 for the hybrids involving weight/1000 kernels. 19 Estimates of the specific combining ability

ScholarsArchive@OSU

Tissue culture and plant regeneration from immature embryo explants of twenty-two genotypes of barley, Hordeum vulgare L.

Inheritance of plant height in barley (Hordeum vulgare L. Emed. LAM.)

Production of haploid plants in selected winter wheat genotypes through anther culture and intergeneric crosses with maize

Modifying selected factors to classify levels of resistance or tolerance in wheat to Septoria Tritici Blotch

Influence of planting density on spike size and grain yield in five winter wheat cultivars

Durum wheat quality and its relation to electrophoretic banding patterns

Possible compensations of the components of grain yeild in wheat (Triticum aestivum L.) as influenced by genotype by environment interactions

Compensating effects and gene action estimates for the components of grain yield in winter wheat (Triticum aestivum, L. em Thell)

The influence of plant densities on gene action estimates and associations in seven winter wheat parents and their F₂ progeny

Genotype-environment interaction in winter wheat F₁ progeny

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