EFFECT OF TOPPING HEIGHT AND STAGE OF FLORAL DEVELOPMENT AT TOPPING ON YIELD AND TOTAL ALKALOIDS OF FLUE-CURED TOBACCO

W. J. ARSENAULT

doi:10.4141/cjps86-031

EFFECT OF TOPPING HEIGHT AND STAGE OF FLORAL DEVELOPMENT AT TOPPING ON YIELD AND TOTAL ALKALOIDS OF FLUE-CURED TOBACCO

Canadian Journal of Plant Science ◽

10.4141/cjps86-031 ◽

1986 ◽

Vol 66 (1) ◽

pp. 201-202

Author(s):

W. J. ARSENAULT

Keyword(s):

Nicotiana Tabacum ◽

Total Alkaloid ◽

Floral Development ◽

Total Alkaloids ◽

Nicotiana Tabacum L

Topping flue-cured tobacco (Nicotiana tabacum L.) at the stretch bud stage of floral development increased yield and total alkaloid level of the leaves compared to topping at first open bloom or full flower stages of floral development. An increase in topping height increased yield and decreased level of total alkaloids.Key words: Tobacco (flue-cured), total alkaloids, floral development, yield, topping height

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RESPONSE OF CIGAR TOBACCO TO DIFFERENT DATES OF PLANTING AND SPACING

Canadian Journal of Plant Science ◽

10.4141/cjps75-041 ◽

1975 ◽

Vol 55 (1) ◽

pp. 303-308

Author(s):

V. KOZUMPLIK ◽

P. P. LUKOSEVICIUS

Keyword(s):

Nicotiana Tabacum ◽

Chemical Characteristics ◽

Breeding Line ◽

Total Alkaloids ◽

Nicotiana Tabacum L ◽

Leaf Yield ◽

Number Of Leaves ◽

Planting Distance ◽

Grade Index

Response of cigar tobacco (Nicotiana tabacum L.) in morphological, agronomic and chemical characteristics to date of planting and planting distance was studied during 1971–73. A cultivar and a breeding line of cigar tobacco were transplanted outdoors on 26 May, 9 (or 12) June and 23 June. The tobacco was spaced 36, 41 and 46 cm in rows that were 97 cm apart. The best results were obtained when cigar tobacco was transplanted not later than 9 June, and the plants were spaced 41 cm in the rows that were 97 cm apart. The highest number of leaves per plant, cured-leaf yield, percentage of nicotine and total alkaloids were obtained from the tobacco transplanted on the first or second date in 3 yr. In 2 yr, the later tobacco had the tallest plants, the largest leaves, the highest percent filler leaf, grade and crop index. Earlier-transplanted tobacco was harvested earlier, although the period to flower decreased with later date of planting. On the average, the tobacco spaced 41 cm was taller and had a shorter period to flower, and higher yield and crop index than that spaced 36 cm or 46 cm. Grade index, percent filler leaf, nicotine and total alkaloids were affected significantly by the distance in 1 yr only.

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Genetic analysis of quantitative characters in cigar and pipe tobacco, Nicotiana tabacum. III. Economic indices: grade index, yield, and crop revenue

Canadian Journal of Genetics and Cytology ◽

10.1139/g83-031 ◽

1983 ◽

Vol 25 (2) ◽

pp. 185-189 ◽

Cited By ~ 1

Author(s):

I. S. Ogilvie ◽

V. Kozumplik

Keyword(s):

Nicotiana Tabacum ◽

Combining Ability ◽

Diallel Cross ◽

General Combining Ability ◽

Specific Combining Ability ◽

Total Alkaloids ◽

Nicotiana Tabacum L ◽

Economic Indices ◽

Grade Index ◽

Pipe Tobacco

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.

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INHERITANCE OF PER CENT TOTAL ALKALOIDS IN NICOTIANA TABACUM L. II. GENETIC EFFECTS OF TWO LOCI IN BURLEY 21 × LA BURLEY 21 POPULATIONS

Canadian Journal of Genetics and Cytology ◽

10.1139/g71-047 ◽

1971 ◽

Vol 13 (2) ◽

pp. 287-291 ◽

Cited By ~ 40

Author(s):

Paul D. Legg ◽

G. B. Collins

Keyword(s):

Nicotiana Tabacum ◽

Dominance Effect ◽

Epistatic Effect ◽

Genetic Effects ◽

Burley Tobacco ◽

Relative Contribution ◽

Total Alkaloids ◽

Dosage Effects ◽

Nicotiana Tabacum L ◽

Locus System

The genetic effects and the relative contribution of two loci to the level of total alkaloids in burley tobacco (Nicotiana tabacum L.) were determined. The nine genotypes for a two-locus system were developed and evaluated in two environments. Significant additive effects were found at both loci, a dominance effect was significant at one locus, and the additive × additive epistatic effect was significant. All interactions between genetic effects and environments were nonsignificant. The relative dosage effects of the loci were approximately 2.4 to 1.

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Inheritance of Percent Total Alkaloids in Nicotiana tabacum L.

Journal of Heredity ◽

10.1093/oxfordjournals.jhered.a107974 ◽

1969 ◽

Vol 60 (4) ◽

pp. 213-217 ◽

Cited By ~ 30

Author(s):

PAUL D. LEGG ◽

JAMES F. CHAPLIN ◽

GLENN B. COLLINS

Keyword(s):

Nicotiana Tabacum ◽

Total Alkaloids ◽

Nicotiana Tabacum L

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CORRELATION STUDIES AMONG AND BETWEEN AGRONOMIC, CHEMICAL, PHYSICAL AND SMOKE CHARACTERISTICS IN FLUE-CURED TOBACCO (NICOTIANA TABACUM L.)

Canadian Journal of Plant Science ◽

10.4141/cjps79-016 ◽

1979 ◽

Vol 59 (1) ◽

pp. 111-120 ◽

Cited By ~ 10

Author(s):

F. H. WHITE ◽

R. S. PANDEYA ◽

V. A. DIRKS

Keyword(s):

Nicotiana Tabacum ◽

Average Length ◽

Positive Association ◽

Total Particulate Matter ◽

Breeding Lines ◽

Total Alkaloids ◽

Nicotiana Tabacum L ◽

Wide Range ◽

Grade Index ◽

Leaf Alkaloids

Coefficients of correlation among 23 characteristics were determined for several flue-cured tobacco (Nicotiana tabacum L.) cultivars and advanced generation breeding lines, representing a wide range of variability for each characteristic. The variables were grouped into agronomic, chemical and physical characteristics of the leaf and smoke properties of cigarettes. Most of the traits studied in these individual groups could be classed into two main categories in terms of their relationship to yield, leaf alkaloids, smoke total particulate matter (TPM) and wet tar (WT). Those agronomic characteristics positively associated with yield were negatively correlated with leaf total alkaloids, lamina weight and smoke TPM, WT and alkaloids on a per cigarette basis. Conversely, grade index and the average length of the three top leaves, which were in negative association with yield, showed a positive relationship with leaf total alkaloids and smoke characteristics. Leaf total alkaloids and lamina weight, in positive association with each other, were positively correlated with smoke TPM, WT, and alkaloids. However, both of these traits were negatively correlated with yield.

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