Effect of leaf maleic hydrazide concentration on yield and dry matter partitioning in burley tobacco (Nicotiana tabacum L.)

1994 ◽  
Vol 37 (2) ◽  
pp. 121-128 ◽  
Author(s):  
S.J. Crafts-Brandner ◽  
M. Collins ◽  
T.G. Sutton ◽  
H.R. Burton
Keyword(s):  
Nicotiana Tabacum ◽  
Dry Matter ◽  
Maleic Hydrazide ◽  
Dry Matter Partitioning ◽  
Burley Tobacco ◽  
Nicotiana Tabacum L

PETROLEUM ETHER EXTRACTABLES IN GREEN AND CURED BURLEY TOBACCO DOUBLED HAPLOIDS

1983 ◽  
Vol 63 (2) ◽  
pp. 515-521
Author(s):  
M. J. KASPERBAUER ◽  
H. R. BURTON
Keyword(s):  
Nicotiana Tabacum ◽  
Petroleum Ether ◽  
Dry Matter ◽  
Doubled Haploids ◽  
Environmental Parameters ◽  
Saturated Hydrocarbons ◽  
Burley Tobacco ◽  
Nicotiana Tabacum L ◽  
Controlled Environments ◽  
Haploid Plants

The petroleum ether extractable (PEE) fraction of burley tobacco (Nicotiana tabacum L.) was studied in doubled haploid lines. The fraction contains components, such as neophytadiene, that are associated with flavor and aroma, and some that contribute to biological activity of tobacco smoke. The PEE contents of 355 haploid plants ranged from 34 to 67 mg/g of dry matter. Doubled haploids derived from haploid plants that ranked at the high and low ends of the range were grown under greenhouse and field conditions, and were sampled at harvest and after conventional air-curing. Total PEE concentrations remained different for the two groups of doubled haploids within each year and location; however, concentrations for both groups decreased during conventional air-curing, and 1979 field-grown cured leaves had less than cured leaves from the 1980 season. Neophytadiene content of field-grown, air-cured tobacco was greatly influenced by environment. Concentration was almost double in 1980 relative to 1979, and nearly tripled during curing. The normal, iso and anteiso classes of the total saturated hydrocarbons occurred in relatively the same percentages in green or cured field-grown tobacco leaves and with no apparent pattern according to the PEE groupings. Doubled haploids and controlled environments offer a means to study effects of individual environmental parameters on changes in amount and composition of the PEE fraction.Key words: Nicotiana tabacum L., burley tobacco, doubled haploids, neophytadiene, C25-C33 hydrocarbons

ACCUMULATION OF NITRATE AND CHLORIDE BY BURLEY TOBACCO

1974 ◽  
Vol 54 (1) ◽  
pp. 167-174 ◽  
Author(s):  
B. D. FUQUA ◽  
J. E. LEGGETT ◽  
J. L. SIMS
Keyword(s):  
Nicotiana Tabacum ◽  
The Other ◽  
Field Conditions ◽  
Leaf Cell ◽  
Plant Composition ◽  
Tobacco Plants ◽  
Burley Tobacco ◽  
Linear Relationships ◽  
Nicotiana Tabacum L ◽  
Root Media

Experiments were conducted to study the NO3− and Cl− interactions during uptake by burley tobacco (Nicotiana tabacum L., cult Ky 14) and the effects of their interactions on plant composition over long growth periods. Results indicated that NO3− or Cl− inhibited the absorption of the other anion by burley tobacco plants but did not influence the composition of cations. Positive linear relationships were found between NO3− and Cl− levels in solution, and the NO3− and Cl− contents in the plants in the laboratory and greenhouse studies. The inhibition of NO3− by Cl− during accumulation was also evident for tobacco plants grown under field conditions for longer periods. The interaction between NO3− and Cl− appears to be competitive during accumulation by burley tobacco. Competition between NO3− and Cl− during accumulation is proposed to be localized in the leaf cell rather than at the root–media interface.

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

1971 ◽  
Vol 13 (2) ◽  
pp. 287-291 ◽  
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.

INHERITANCE OF A SHORT-INTERNODE TRAIT IN TOBACCO

1982 ◽  
Vol 24 (6) ◽  
pp. 653-659
Author(s):  
Paul D. Legg ◽  
G. B. Collins
Keyword(s):  
Nicotiana Tabacum ◽  
Plant Height ◽  
Mutant Line ◽  
Chemical Components ◽  
Maternal Parent ◽  
Short Internode ◽  
Burley Tobacco ◽  
Nicotiana Tabacum L

A short-internode mutation in burley tobacco (Nicotiana tabacum L.) was inherited as a monogenic trait. Heterozygous plants varied in phenotype from comparable to the short-internode mutant to intermediate between mutant and normal plants. In generations following crosses between the mutant line and three burley cultivars, the degree of expression of dominance varied by years, maternal parent, cultivar background, and percentage of germplasm from the mutant parent. The short-internode line was reduced in plant height and had narrower leaves than the three cultivars. Also, the mutant line had more leaves than two of the three cultivars and was comparable to the cultivars in yield and several chemical components. Short-internode cultivars could be developed for use in present production or in mechanized handling systems.

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