A Study of Variation and Inheritance of Resistance to Fusarium Root Rot in Red Clover (Trifolium Pratense L.) [microform] PDF Download
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Author: Micheline Lambert
Publisher: National Library of Canada
ISBN: 9780315342613
Category :
Languages : en
Pages :
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Book Description
In a greenhouse study, eight month old plants of red clover cvs Arlington and Florex were evaluated for resistance to Fusarium root rot. Four hundred and fifty genotypes were inoculated with one of three isolates of Fusarium roseum (814, 927, 959) using a cut-root application technique. The degree of Fusarium root rot incidence was evaluated by measuring the vertical discoloration in the taproot from the point of inoculation, and by means of the Horsfall-Barratt scale. Isolate 814 produced a greater degree of infection than isolates 927 and 959. Genetic difference in resistance between and within the two red cultivars were found using isolate 814 and 959, but no difference was found using the less pathogenic isolate 927. [...].
![A Study of Variation and Inheritance of Resistance to Fusarium Root Rot in Red Clover (Trifolium Pratense L.) [microform] PDF](https://books.google.com/books/content/images/frontcover/f2efzgEACAAJ?fife=w80-h100)
Author: Micheline Lambert
Publisher: National Library of Canada
ISBN: 9780315342613
Category :
Languages : en
Pages :
Get Book Here
Book Description
In a greenhouse study, eight month old plants of red clover cvs Arlington and Florex were evaluated for resistance to Fusarium root rot. Four hundred and fifty genotypes were inoculated with one of three isolates of Fusarium roseum (814, 927, 959) using a cut-root application technique. The degree of Fusarium root rot incidence was evaluated by measuring the vertical discoloration in the taproot from the point of inoculation, and by means of the Horsfall-Barratt scale. Isolate 814 produced a greater degree of infection than isolates 927 and 959. Genetic difference in resistance between and within the two red cultivars were found using isolate 814 and 959, but no difference was found using the less pathogenic isolate 927. [...].
Author: Micheline Lambert
Publisher:
ISBN:
Category : Fusarium
Languages : en
Pages : 115
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Book Description
Author: Michael John Velde
Publisher:
ISBN:
Category : Red clover
Languages : en
Pages : 358
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Book Description
Author: Bradley Clifton Venuto
Publisher:
ISBN:
Category :
Languages : en
Pages : 334
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Book Description
Author: Snorre Rufelt
Publisher:
ISBN: 9789157626288
Category : Red clover
Languages : en
Pages : 33
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Book Description
Author: Snorre Rufelt
Publisher:
ISBN:
Category :
Languages : en
Pages : 104
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Book Description
Author: Gary Alan Pederson
Publisher:
ISBN:
Category :
Languages : en
Pages : 138
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Book Description
Author:
Publisher:
ISBN:
Category : Canada
Languages : en
Pages : 684
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Book Description
Author: Rosa Margesin
Publisher: Springer Science & Business Media
ISBN: 3642586074
Category : Science
Languages : en
Pages : 340
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Book Description
How can industry profit from the biochemical tricks of cold-adapted organisms? This book covers a range of aspects in this fascinating field, from genetic tools to environmental biotechnology.
Author: G. Kalloo
Publisher: Springer Science & Business Media
ISBN: 3642843069
Category : Technology & Engineering
Languages : en
Pages : 282
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Book Description
Wild taxa are invaluable sources of resistance to diseases, insects/ pests, nematodes, temperature extremes, salinity and alkalinity stresses, and also of nutritional quality; adaptation; genetic diversity and new species. Utilization of wild relatives of a crop depends largely upon its crossability relations with cultivated varieties. Sev eral wild species are not crossable with the commercial cultivars due to various isolation barriers. Furthermore, in a few cases, hybridiza tion is possible only in one direction and reciprocal crosses are not successful, thus depriving the utilization of desired cytoplasm of many species. However, techniques have been developed to over come many barriers and hybrid plants are produced. New crop species have been developed by overcoming the F 1 sterility and producing amphidiploids and such crops are commercially being grown in the field. The segregation pattern ofF 1 hybrids produced by distant hybridization in segregating generations are different from the intervarietal hybrids. In former cases, generally, unidirectional segregation takes place in early generations and accordingly, selec tion procedures are adopted. In most of the cases, backcross or modified backcross methods have been followed to utilize wild species, and thus numerous types of resistance and other economical attributes have been transferred in the recurrent parents. Protoplast fusion has been amply demonstrated in a number of cases where sexual hybridization was not possible and, as a result, hybrids have been produced.
