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

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 Cheng flue-cured tobacco

1997 ◽  
Vol 77 (1) ◽  
pp. 155-156 ◽  
Author(s):  
J. E. Brandle ◽  
J. C. D. Ankersmit ◽  
W. D. Rogers
Keyword(s):  
Nicotiana Tabacum ◽  
Key Words ◽  
Pest Management ◽  
Somatic Hybrid ◽  
Somatic Hybrids ◽  
Research Centre ◽  
Management Research ◽  
Leaf Quality ◽  
Nicotiana Rustica ◽  
Breeding Lines

AC Cheng is a flue-cured tobacco (Nicotiana tabacum) cultivar bred at the Pest Management Research Centre of Agriculture and Agri-Food Canada. It is a cultivar with high leaf quality and resulted from crosses between flue-cured cultivars and breeding lines, and Nicotiana rustica (+) Nicotiana tabacum somatic hybrids (somatic 9/77CD15//2*Delgold) (Douglas et al. 1981). AC Cheng is adapted to the tobacco growing areas of Ontario. Key words: Nicotiana tabacum, somatic hybrid

CTH2 flue-cured tobacco F1 hybrid

2007 ◽  
Vol 87 (2) ◽  
pp. 383-384 ◽  
Author(s):  
H. M. Haji ◽  
S. Mishra ◽  
M. DeVos
Keyword(s):  
Nicotiana Tabacum ◽  
Root Rot ◽  
Economic Returns ◽  
Hybrid Male ◽  
Leaf Quality ◽  
F1 Hybrid ◽  
Black Root Rot ◽  
Root Rot Disease ◽  
Nicotiana Tabacum L ◽  
Rot Disease

CTH2 is the first flue-cured tobacco (Nicotiana tabacum L.) hybrid recommended for commercial release in Canada. Yields and economic returns of CTH2 are significantly higher than the check varieties, Delgold and CT157. It has uniform growth both in the greenhouse and in the field, and is resistant to black root rot disease (Chalara elegans Nag Raj and Kendrick, causal agent). Leaf quality traits of CTH2 are far superior to Delgold, as well as commercial varieties that are also immune to black root rot disease. Key words: Nicotiana tabacum L., tobacco, hybrid, male sterility, black root rot, cultivar description

THE EFFECT OF CROSS-GRAFTING BETWEEN IMMUNE, TOLERANT AND SUSCEPTIBLE NICOTIANA TABACUM CULTIVARS ON INFECTION WITH THIELAVIOPSIS ROOT ROT

1979 ◽  
Vol 59 (4) ◽  
pp. 1181-1183
Author(s):  
S. K. GAYED
Keyword(s):  
Nicotiana Tabacum ◽  
Root Rot ◽  
Necrotic Lesion ◽  
Thielaviopsis Basicola ◽  
Subsequent Growth ◽  
Lesion Formation ◽  
Breeding Lines ◽  
Immune Tolerant

The severity of infection of tobacco cultivars and breeding lines to necrotic lesion formation by Thielaviopsis basicola and subsequent growth of the plants of cross-grafted, self-grafted and ungrafted seedlings of the immune breeding lines 72C18, the tolerant cultivar Virginia 115 and the susceptible cultivars White Mammoth depended totally on the root irrespective of the grafted shoot.

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

scholarly journals Resistance of Andean beans and advanced breeding lines to root rots in Uganda

1970 ◽  
Vol 28 (3) ◽  
pp. 389-409
Author(s):  
W. Amongi ◽  
F. Kato ◽  
A. Male ◽  
S. Musoke ◽  
S. Sebuliba ◽  
...  
Keyword(s):  
Root Rot ◽  
Central Africa ◽  
Yield Potential ◽  
High Yield ◽  
Yield Losses ◽  
Phaseolus Vulgaris L ◽  
Breeding Lines ◽  
Root Rots ◽  
The World ◽  
High Yield Potential

Root rots cause severe yield losses of up to >70% in common bean (Phaseolus vulgaris L.) in most parts of the world, with devastating effects on the major commercial bean cultivars in East and Central Africa. Increased intensity of droughts and rains, and higher temperatures influence the occurrence and distribution of root rots, resulting in increased epidemics. The causal pathogens tend to occur in a complex, and since most cultivars do not have broad resistance, adverse effects continue to occur. The objective of this study was to evaluate the levels of dual resistance of new breeding lines (BL) developed for root rot resistance, as well as Andean (ADP) genotypes, for resistance to Fusarium (FRR) and Pythium root rots (PRR). Altogether, 316 new BL developed for root rot resistance and 295 ADP bean genotypes were evaluated at Kawanda in Uganda. There were significant differences (P<0.05) among genotypes for both root rots and yield. Thirty and 1.9 percent of the BL and ADP genotypes expressed resistance to both root rots. In addition, more than 80% of ADP genotypes showed susceptibility to both root rots. Yield was generally poor with means of 458 kg ha-1 for ADP, and ranging from 949 to 1075 kg ha-1 for the BL groups. Nonetheless, the 0.3 and 2.4% of the ADP and BL that yielded >2000 kg ha-1 expressed high yield potential, considering that majority of the genotypes yielded below 1000 kg ha-1.

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