Effects of the Nicotiana debneyi black root rot resistance factor on agronomic and chemical traits in burley tobacco

1981 ◽  
Vol 60 (6) ◽  
pp. 365-368 ◽  
Author(s):  
P. D. Legg ◽  
C. C. Litton ◽  
G. B. Collins
Keyword(s):  
Root Rot ◽  
Resistance Factor ◽  
Black Root Rot ◽  
Burley Tobacco ◽  
Nicotiana Debneyi ◽  
Chemical Traits

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

scholarly journals The Chemical Control of Tobacco Black Root Rot

1989 ◽  
Vol 14 (3) ◽  
pp. 189-195
Author(s):  
R Delon ◽  
MN Pululu
Keyword(s):  
Root Rot ◽  
Chemical Control ◽  
Treatment Method ◽  
Tobacco Plants ◽  
Black Root Rot ◽  
Burley Tobacco

AbstractWith the development of flue-cured and Burley tobacco culture in France, black root rot, caused by Chalaraelegans (Thielaviopsisbasicola), is becoming a problem. Since 1981 the Bergerac Tobacco Institute has studied the efficacy of new endotherapeutic fungicides of the triazole family. Among these, triadimenol was found to be the most effective. The treatment method consists of spraying tobacco plants with a triadimenolsolution 48 to 72 hours before transplanting. This method appears to be an economic and efficient means to control tobacco black root rot in the field. Treatment of young tobacco plants with triadimenol strongly stimulates rhizogenesis and this favours strengthening of the tobacco plants in the field.

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

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