Zinc fertilizer increased β-damascone content in tobacco leaf.

zinc atom · molecular: metabolites · Nicotiana tabacum (tobacco)Positive and negative results

3 papers in the same direction as this claim · 1 in the opposite direction

1. no effect
   Cd or Zn did not stimulate organic acid biosynthesis.

   Relationships between Cadmium, Zinc, Cd-Peptide, and Organic Acid in Tobacco Suspension Cells · 1989

   Opposite direction

2. positive
   Only the 10 kg Zn treatment in 1983 increased tobacco tissue concentration.

   The response of flue‐cured tobacco and fertility status of a sandy loam soil to Mg, P, and Zn fertilization · 1992

   Same direction

3. positive
   Combined K, zinc and boron fertilization significantly increased K content.

   Effects of Fertilizer Zinc,Boron,Potassium Fertilizer on Growth and Quality of Flue-cured Tobacco · 2013

   Same direction

4. positive
   Low or middle concentrations of the Pb and Zn interaction promote tobacco carbon and nitrogen metabolism.

   Effects of Pb and Zn Combination on Antioxidant Enzymes and Carbon-nitrogen Metabolism of Flue-cured Tobacco · 2021

   Same direction

fertilization · molecular: metabolites · Nicotiana tabacum (tobacco)Results differ

71 papers in the same direction as this claim · 7 in the opposite direction · 2 reporting no difference from an alternative

1. negative
   Lamina nitrate rose with increasing broadcast nitrogen.

   Relationships among Soil Nitrate, Leaf Nitrate, and Leaf Yield of Burley Tobacco · 1999

   Opposite direction

2. negative
   Infected discs cultured in nutrient solution developed a small deficiency in amino acid nitrogen.

   CHANGES IN NON-PROTEIN NITROGEN METABOLISM DURING TOBACCO MOSAIC VIRUS BIOSYNTHESIS · 1952

   Opposite direction

3. negative
   first class and secondary class tobacco’s proportion declined above 180 kg/hm2 nitrogen fertilizer and N:K ratio 3.

   Effect of Different Nitrogen Application Rate and Nitrogen, Phosphorous and Potassium Ratio on the Yield and Quality of Flue-cured Tobacco · 2011

   Opposite direction

4. no effect
   Nicotine in central leaves showed no obvious change as nitrogen fertilizer amount increased.

   Research on the Metabolism Rules of Nitrogenous Compounds in Flue-cured Tobacco Leaves in Yunnan · 2001

   Opposite direction

5. no effect
   Other leaf element contents did not vary significantly as nitrate and ammonium proportions increased.

   Effects of Irrigation and Nitrogen Source on Nutrition and Yield and Quality of Flue-cured Tobacco · 2006

   Opposite direction

6. negative
   N fertilizer increased nicotine concentration by 12%-59%.

   Nicotine synthesis and nicotine-N source in flue-cured tobacco influenced by transplanting date and N fertilizer · 2010

   Opposite direction

7. negative
   Excess potassium fertilizer lowered nicotine content.

   Effects of Planting Density and K Application Level on Qulity of Flue-cured Tobacco · 2013

   Opposite direction

8. no effect
   Plant Mn content was unaffected by fertilizer rate when the fertilizer was banded.

   Burley Tobacco Response to Band Applications of N‐P‐K Fertilizer · 1989 · compared with broadcast treatments

   No difference from an alternative

72 papers more in this group