Comparisons of populations of oats (Avena sativa L.) developed by intra- and interspecific hybridization

Murphy, J. Paul

doi:10.31274/rtd-180813-6170

Cited by 3 publications

(2 citation statements)

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“…sterilis accessions and spring-oat cultivars with superior agronomic traits (Murphy, 1981) . Because our oat lines were random genotypes from a diverse germplasm pool, our results, which show that NHI is not associated with yield parameters, b, s t d, and r2 , probably represent the true relationships involving NHI better than do the varieties used by Fawcett & Frey (1982) and Rattunde & Frey (1986) .…”

Section: Discussionmentioning

confidence: 99%

Associations between nitrogen harvest index and yield characteristics of oats

Kairudin

Frey

1990

Euphytica

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Fifty lines of oats (Avena Saliva L .) with a broad range of nitrogen harvest indexes (NHI) and nine check lines were evaluated in 15 environments to study the association between NHI and adaptability of oat lines to soils with different productivity levels due primarily to different amounts of N . Three yield characteristics (i .e ., mean across environments, regression response to improving environments, and stability of response) were used to measure adaptability . The lines were significantly variable for means of grain and straw yield, for responsiveness to improving environments, and for stability of yield . Among the yield characteristics, only the mean of grain yield was significantly correlated with NHL

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Section: Discussionmentioning

confidence: 99%

Associations between nitrogen harvest index and yield characteristics of oats

Kairudin

Frey

1990

Euphytica

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“…!-$- 1. INTRODUCTION Intermating elite breeding lines will usually produce the best short term results in breeding programs designed to improve a quantitative trait (Murphy and Frey, 1984).…”

Section: Bean Good Wellmentioning

confidence: 99%

Genetic Resources of Phaseolus Beans

Gepts¹

1988

Current Plant Science and Biotechnology in Agriculture

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The bookseries is intended for readers ranging from advanced students to senior research scientists and corporate directors interested in acquiring in-depth, stateof-the-art knowledge about research findings and techniques related to plant science and biotechnology. While the subject matter will relate more particularly to agricultural applications, timely topics in basic plant science and biotechnology will be explored as well. Some volumes will report progress in rapidly advancing disciplines through proceedings of symposia and workshops while others will detail fundamental information of an enduring nature that will be referenced repeatedly.

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Introgression of wild germplasm into cultivated sorghum

Cox

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INFORMATION TO USERSThis reproduction was made from a copy of a document sent to us for microfilming. While the most advanced technology has been used to photograph and reproduce this document, the quality of the reproduction is heavily dependent upon the quality of the material submitted.The following explanation of techniques is provided to help clarify markings or notations which may appear on this reproduction. 1. The sign or "target" for pages apparently lacking from the document photographed is "Missing Page(s)". If it was possible to obtain the missing page(s) or section, they are spliced into the film along with adjacent pages. This may have necessitated cutting through an image and duplicating adjacent pages to assure complete continuity.2. When an image on the film is obliterated with a round black mark, it is an indication of either blurred copy because of movement during exposure, duplicate copy, or copyrighted materials that should not have been filmed. For blurred pages, a good image of the page can be found in the adjacent frame. If copyrighted materials were deleted, a target note will appear listing the pages in the adjacent frame.3. When a map, drawing or chart, etc., is part of the material being photographed, a definite method of "sectioning" the material has been followed. It is customary to begin filming at the upper left hand comer of a large sheet and to continue from left to right in equal sections with small overlaps. If necessary, sectioning is continued again-beginning below the first row and continuing on until complete.4. For illustrations that cannot be satisfactorily reproduced by xerographic means, photographic prints can be purchased at additional cost and inserted into your xerographic copy. These prints are available upon request from the Dissertations Customer Services Department. Some pages in any document may have indistinct print.In all cases the best available copy has been filmed. Universi^ Micionlms International 1983Signature was redacted for privacy.Signature was redacted for privacy.Signature was redacted for privacy.ii GENERAL INTRODUCTIONWhereas introgression of genes from one race or species into an other has been a factor in the evolution of plants in nature, both natural and artificial introgression have played a part in the develop ment of many agricultural species. Stebbins (1970) outlined the sequence of events in natural intro gression: (1) hybridization, (2) backcrossing, and (3) stabilization of backcross types by selection. In nature, a direct hybrid between two very diverse parents is usually unadapted to the habitat of either parent and is at a selective disadvantage. Backcrossing, by producing progeny adapted to the habitat of one parent but containing small amounts of germplasm of the other, can permit an enduring transfer of genes.Likewise in plant breeding, crosses between cultivated strains and wild or weedy relatives usually produce very few or no agronomically acceptable progeny. suggested in the case of wide crosses that the breeder backcross...

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Comparisons of populations of oats (Avena sativa L.) developed by intra- and interspecific hybridization

Cited by 3 publications

References 30 publications

Associations between nitrogen harvest index and yield characteristics of oats

Associations between nitrogen harvest index and yield characteristics of oats

Genetic Resources of Phaseolus Beans

Introgression of wild germplasm into cultivated sorghum

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