EFFETS A LONG TERME DE L’ENRICHISSEMENT CARBONÉ SUR LA TOMATE DE SERRE CULTIVÉE AVEC OU SANS ÉCLAIRAGE D’APPOINT

1987 ◽  
Vol 67 (3) ◽  
pp. 899-907 ◽  
Author(s):  
SERGE YELLE ◽  
ANDRE GOSSELIN ◽  
MARC-J. TRUDEL
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Lycopersicon Esculentum ◽  
Water Use ◽  
Synergetic Effect ◽  
Growth Yield ◽  
Lycopersicon Esculentum Mill ◽  
Supplementary Lighting

Tomato (Lycopersicon esculentum Mill. ’Vedettos’) was grown under three different concentrations of atmospheric CO2 (330, 900 and 1500 ppm) and two lighting intensities (natural and natural plus 30 W m−2 (PAR)) provided by high-pressure sodium lights (HPS). Results show a reduction in CO2 efficiency after eight weeks of enrichment. The higher the CO2 concentration, the more serious is this reduction. Our results show the potential of CO2 enrichment and supplementary lighting as well as their synergetic effect on productivity (yield increases of 32, 73 and 122%, respectively). Supplementary lighting does not compensate for the reduction of CO2 efficiency. Concentrations of 900 and 1500 ppm increased the plants’ water-use efficiency.Key words: Carbon dioxide, tomato, greenhouse, growth, yield

INFLUENCE OF IRRADIANCE-PHOTOPERIOD COMBINATION ON TOMATO MINERAL NUTRITION

1987 ◽  
Vol 67 (2) ◽  
pp. 559-566 ◽  
Author(s):  
NICOLAS TREMBLAY ◽  
MARC-J. TRUDEL ◽  
ANDRÉ GOSSELIN
Keyword(s):  
High Pressure ◽  
Lycopersicon Esculentum ◽  
Major Ions ◽  
Reductase Activity ◽  
Nitrogen Concentration ◽  
Natural Light ◽  
Mineral Uptake ◽  
Tomato Plants ◽  
Lycopersicon Esculentum Mill ◽  
Supplementary Lighting

The irradiance-photoperiod combination was modified in an attempt to enhance the mineral uptake of tomato plants (Lycopersicon esculentum Mill. ’Marone’). Tomato plants grown in natural light were compared to plants receiving 7.56 × 105 J m−2 d−1 (400–700 nm) of high-pressure sodium (HPS) supplementary light provided at either low irradiance-long photoperiod (LILP) or high irradiance-short photoperiod (HISP). The LILP treatment promoted the greatest uptake of most major ions followed by natural light and HISP-grown plants, respectively. Supplementary lighting increased Mg concentration in the top and affected K concentration within plants differentially depending on the plant part analyzed. Nitrogen concentration in the shoot below the second flower cluster (midsection of top growth) and Ca concentration in the roots varied depending on the combination of irradiance-photoperiod. Phosphorus concentrations were not affected. Iron and Mn uptake tended to be depressed by HPS treatments. The results are consistent with the hypothesis which relates nutrient uptake to nitrate reductase activity (NRA), although NRA was not specifically measured in this experiment.Key words: Tomato, nutrition, high-pressure sodium, supplementary lighting, mineral uptake, Lycopersicon esculentum Mill.

Effect of inorganic fertilizers and bio-fertilizers on growth, yield and quality of tomato (Lycopersicon esculentum Mill.)

2016 ◽  
Vol 1 (01) ◽  
pp. 116-118
Author(s):  
Anant Kumar ◽  
Virendra Pal ◽  
S. P. Singh ◽  
Santosh Verma
Keyword(s):  
Ascorbic Acid ◽  
Lycopersicon Esculentum ◽  
Acid Content ◽  
Growth Yield ◽  
Ascorbic Acid Content ◽  
Summer Season ◽  
Growth And Yield ◽  
Lycopersicon Esculentum Mill ◽  
Yield And Quality

A field experiment was carried out during summer season of 2013 and 2014 to find out the effect of inorganic and bio-fertilizers on the growth, yield and quality of tomato (Lycopersicon esculentum Mill.) cv. Pusa Hybrid -2. The results revealed that plants growth and yield of tomato can be increased with the application of Azospirillum along with recommended dose of NPK (120kg N + 60kg P + 60kg K/ha). The ascorbic acid content of fruits were found maximum with the 80kg N + 40kg P + 60kg K/ha with Azospirillum. The TSS was improved by the application of 80kg N + 40kg P + 60kg K/ha with Phosphobacteria.

scholarly journals Effect of fertigation on growth, yield and quality of Tomato Lycopersicon esculentum MILL. VAR. COTH2

2018 ◽  
Vol Volume-2 (Issue-4) ◽  
pp. 1980-1987
Author(s):  
Dr. R. Pandiyan ◽  
Dr. V. A. Sathiyamurthy ◽  
Dr. L. Pugalenthi | Dr. R. Nagarajan ◽  
Keyword(s):  
Lycopersicon Esculentum ◽  
Growth Yield ◽  
Lycopersicon Esculentum Mill ◽  
Yield And Quality
Sign in / Sign up

Export Citation Format

Share Document