AC Gayed flue-cured tobacco

1997 ◽  
Vol 77 (1) ◽  
pp. 157-158 ◽  
Author(s):  
J. E. Brandle ◽  
W. D. Rogers ◽  
J. C. D. Ankersmit
Keyword(s):  
Nicotiana Tabacum ◽  
Root Rot ◽  
Research Centre ◽  
Black Root Rot ◽  
Chalara Elegans ◽  
Tobacco Production ◽  
Nicotiana Debneyi ◽  
Production Areas ◽  
Grade Index ◽  
Disease Free

AC Gayed is a flue-cured tobacco (Nicotiana tabacum) cultivar bred at the Pest Management Research Centre of Agriculture and Agri-Food Canada. It is a a black root rot (Chalara elegans) resistant, backcross derivative of Delgold (ST205/PB19//*5 Delgold) (Pandeya and White 1984). The resistance gene originated from Nicotiana debneyi. AC Gayed is adapted to the tobacco production areas of Ontario. It has similar grade index, but slightly lower yield than Delgold when grown in disease-free conditions. Key words: Nicotiana tabacum, black root rot resistance, backcross

AC Maridel flue-cured tobacco

1997 ◽  
Vol 77 (1) ◽  
pp. 159-160
Author(s):  
J. E. Brandle ◽  
W. Arsenault ◽  
W. D. Rogers ◽  
J. C. D. Ankersmit
Keyword(s):  
Nicotiana Tabacum ◽  
Root Rot ◽  
Prince Edward Island ◽  
High Yield ◽  
Research Centre ◽  
Management Research ◽  
Leaf Quality ◽  
Black Root Rot ◽  
Breeding Lines ◽  
Chalara Elegans

AC Maridel is a flue-cured tobacco (Nicotiana tabacum) cultivar bred collaboratively by the Pest Management Research Centre and the Charlottetown Research Centre of Agriculture and Agri-Food Canada. It is a cultivar with high yield, improved leaf quality and is resistant to black root rot (Chalara elegans). It resulted from crosses between two breeding lines originally selected at Delhi (80M11/80K2G). AC Maridel is adapted to the tobacco growing areas of Prince Edward Island. Key words: Nicotiana tabacum, black root rot resistance

Effect of the Nicotiana debneyi black root rot resistance gene on the yield and quality characteristics of flue-cured tobacco in Ontario

2003 ◽  
Vol 83 (4) ◽  
pp. 939-942 ◽  
Author(s):  
H. M. Haji ◽  
R. A. Brammall ◽  
D. L. VanHooren
Keyword(s):  
Root Rot ◽  
Quality Characteristics ◽  
Economic Returns ◽  
Black Root Rot ◽  
Root Rot Disease ◽  
Yield And Quality ◽  
Chalara Elegans ◽  
Yield Quality ◽  
Nicotiana Debneyi ◽  
Rot Disease

The effects of Nicotiana debneyi-derived resistance to black root rot disease were evaluated for yield, agronomic and quality traits by comparing the near isogenic cultivars AC Gayed (resistant) and Delgold (susceptible). Over 7 yr of trials the possession of resistance led to yields and economic returns that averaged 6 and 7% lower, respectively, than for the susceptible line. Key words: Flue-cured tobacco, Nicotiana tabaccum, Black Root Rot, Chalara elegans, Nicotiana debneyi, yield, quality

Lettuce Black Root Rot - a Disease Caused by Chalara Elegans.

1994 ◽  
Vol 23 (3) ◽  
pp. 106 ◽  
Author(s):  
RG O'brien ◽  
RD Davis
Keyword(s):  
Root Rot ◽  
Black Root Rot ◽  
Chalara Elegans

CT681 flue-cured tobacco

2000 ◽  
Vol 80 (1) ◽  
pp. 167-168
Author(s):  
H. M. Haji ◽  
S Mishra ◽  
M. DeVos
Keyword(s):  
Nicotiana Tabacum ◽  
Key Words ◽  
Root Rot ◽  
High Yield ◽  
Thielaviopsis Basicola ◽  
Economic Returns ◽  
Nicotiana Tabacum L ◽  
Cultivar Description ◽  
Tobacco Cultivar ◽  
Grade Index

CT681 is a flue-cured tobacco (Nicotiana tabacum L.) cultivar with high yield and grade index, and provides significantly higher economic returns togrowers. Company evaluations are higher than the checks, and percent lamina is high. CT681 is resistant to black root rot [Thielaviopsis basicola (Berk. & Broome) Ferraris] disease. Key words: Nicotiana tabacum L., tobacco, cultivar description

Three novel Nicotiana debneyi specific repetitive DNA elements derived from a RAPD marker

Genome ◽  
1999 ◽  
Vol 42 (1) ◽  
pp. 104-109 ◽  
Author(s):  
D Bai
Keyword(s):  
Repetitive Dna ◽  
Root Rot ◽  
Somatic Hybrids ◽  
Rapd Marker ◽  
Translocation Line ◽  
Black Root Rot ◽  
Dna Elements ◽  
Nicotiana Debneyi ◽  
Species Specific ◽  
Repetitive Dna Elements

The RAPD marker UBC4181050, tightly linked in coupling with the Nicotiana debneyi gene for resistance to black root rot (Chalara elegans Nag Raj and Kendrick; Syn. Thielaviopsis basicola [Berk. and Broome] Ferraris), has been cloned and sequenced. The terminal 10 bases of this RAPD marker exactly match the sequence of the primer UBC418. UBC4181050 was restricted into 6 subfragments of 75, 91, 110, 174, 274, and 336 bp (the accession numbers for these 6 subfragments in the GenBank Data Base are U84217, U84218, U84219, U84220, U84221, and U84222, respectively) by combined restriction with HindIII and RsaI. The entire UBC4181050 marker and its 6 subfragments were used as probes in RFLP analyses. The RFLP analyses were performed on 'Delgold' tobacco (Nicotiana tabacum L.), the tobacco plants (2n = 48) recovered from the somatic hybrids between 'Delgold' and N. debneyi, the 'Delgold' tobacco translocation line carrying the N. debneyi gene for resistance to black root rot, the 'Delgold' tobacco addition lines carrying various N. debneyi chromosomes, and an additional 27 species in the genus Nicotiana. The analyses indicated that UBC4181050 is composed of at least 6 different repetitive DNA elements that are independently interspersed in N. debneyi genomes. Three of them (subfragments of 91, 274, and 336 bp) are N. debneyi specific. The N. debneyi specific repetitive DNA elements are distributed primarily within the taxonomic section (Suaveolentes) to which N. debneyi belongs.Key words: RAPD, repetitive DNA, Nicotiana debneyi, species-specific.

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