Combining Ability Estimates for Weather Fleck in
            Nicotiana tabacum
            L.
            1

A diallel cross of four cigar cultivars and one pipe tobacco (Nicotiana tabacum L.) cultivar was analyzed for the following parameters: grade index, yield, crop revenue or index, percentage of nicotine, percentage of total alkaloids, and susceptability to pole rot. The experiment was performed over 3 years. Analysis was done for general combining ability and specific combining ability. General combining ability was greater than specific combining ability for all variables although significant specific combining ability effects were also present for all parameters with the exception of nicotine and total alkaloids. Reciprocal effects were completely absent. The line Pennbel 69 showed a positive general combining ability effect for yield, crop index, and infestation by pole rot and a high negative general combining ability effect for grade index and percentage of nicotine and total alkaloids. Petit Havane showed a complete reverse of general combining ability effects for these parameters while the other three cultivars were intermediate. High positive specific combining ability effects for grade index, yield, and crop index and high negative specific combining ability effects for the percentage of pole rot were shown by crosses of Pennbel 69.

Download Full-text

Heterosis and Combining Ability in Diallel Crosses of Burley Tobacco, Nicotiana tabacum L. 1

Crop Science ◽

10.2135/cropsci1970.0011183x001000060033x ◽

1970 ◽

Vol 10 (6) ◽

pp. 705-707 ◽

Cited By ~ 7

Author(s):

Paul D. Legg ◽

G. B. Collins ◽

C. C. Litton

Keyword(s):

Nicotiana Tabacum ◽

Combining Ability ◽

Diallel Crosses ◽

Burley Tobacco ◽

Nicotiana Tabacum L

Download Full-text

Combining Ability Analysis for Cured Leaf Yield and its Component Traits in FCV (Flue-Cured Virginia) Tobacco (Nicotiana tabacum L.)

International Journal of Current Microbiology and Applied Sciences ◽

10.20546/ijcmas.2019.802.269 ◽

2019 ◽

Vol 8 (02) ◽

pp. 2306-2313

Author(s):

Megha Ganachari ◽

H.D. Mohan Kumar ◽

B.M. Dushyantha Kumar ◽

S.P. Nataraju ◽

H. Ravindra

Keyword(s):

Nicotiana Tabacum ◽

Combining Ability ◽

Nicotiana Tabacum L ◽

Leaf Yield ◽

Combining Ability Analysis ◽

Component Traits

Download Full-text

GENETIC ANALYSIS OF QUANTITATIVE CHARACTERS IN CIGAR AND PIPE TOBACCO NICOTIANA TABACUM II. GRADES OF CIGAR FILLER TOBACCO

Canadian Journal of Genetics and Cytology ◽

10.1139/g81-064 ◽

1981 ◽

Vol 23 (4) ◽

pp. 585-590

Author(s):

I. S. Ogilvie ◽

V. Kozumplik

Keyword(s):

Nicotiana Tabacum ◽

Combining Ability ◽

Diallel Cross ◽

General Combining Ability ◽

Specific Combining Ability ◽

Reciprocal Effects ◽

Total Percentage ◽

Nicotiana Tabacum L ◽

Positive Effect ◽

Pipe Tobacco

A diallel cross of four cigar and one pipe tobacco (Nicotiana tabacum L.) was analyzed for the following characters in samples of cured tobacco: (1) percentage of light filler; (2) percentage of heavy filler; (3) percentage of top filler; (4) percentage of bottom filler; (5) percentage of total filler; (6) percentage of marketable trash and (7) total percentage of marketable tobacco. The experiment was performed over three years with four replications. Analysis was done for general combining ability and specific combining ability. General combining ability was greater than specific combining ability for all parameters, although specific combining ability effects were also present for all parameters with the exception of total marketable tobacco. Reciprocal effects were completely absent. The line Pennbel 69 showed a negative general combining ability effect for all grades of filler, total filler and total marketable tobacco with a positive effect for percentage of marketable trash. High positive specific combining ability effects for percentage total filler and high negative specific combining ability effects for percentage marketable trash were shown by crosses of Pennbel 69 with the other four cultivars.

Download Full-text