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| Cardoso,Francieli L; Andriolo,Jerônimo L; Picio,Miriane Dal; Piccin,Marcieli; Souza,Jéssica M. |
| ABSTRACT: The objective of this research was to test the hypothesis that when lettuce plants grow under root confinement, development and yield is reduced and that such negative effects may be compensated by increasing nitrogen availability in the rooting media. The experiment was conducted between August 11st and September 23rd 2011. Lettuce transplants, cultivar Stella, bearing five leaves, were planted in pots using sand as substrate. Treatments were three root confinement levels and five N concentrations in the nutrient solution, in a 3x5 factorial randomized experimental design with four replications. Root confinements were simulated by pot sizes of 2.5 dm³ (no confinement, the control); 1.0 dm³ (moderate) and 0.4 dm³ (severe). Nitrogen concentrations... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Fertilization; Horticulture; Mineral nutrition.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362015000400422 |
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| Andriolo,Jerônimo L; Erpen,Lígia; Cardoso,Francieli L; Cocco,Carine; Casagrande,Gustavo S; Jänisch,Djeimi I. |
| In soilless grown strawberry crops, the nitrogen concentration of the nutrient solution affects plant growth and fruit yield and quality. The present research was conducted to determine the effect of nitrogen concentration in the nutrient solution on plant growth and development and fruit yield and quality of this crop. Treatments consisted of five nutrient solutions at nitrogen concentrations of 6.5 (T1), 8.0 (T2), 9.5 (T3), 11.0 (T4) and 12.5 (T5) mmol L-1, in an entirely randomised experimental design with four replications. Ripe fruit yield was determined during the harvest period from June 6th to November 27th, 2009. Number of leaves, shoot and root dry mass and crown diameter were determined at the later date. Number of leaves, shoot and root dry... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragaria x ananassa; Hydroponics; Mineral nutrition of plants. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000400012 |
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| Mambrí,Ana PS; Andriolo,Jerônimo L; Manfron,Melânia P; Pinheiro,Suany MG; Cardoso,Francieli L; Neves,Myriam G. |
| ABSTRACT The objective of this research was to evaluate the effect of successive harvesting times and shading on the production of biomass, yield and phytochemical composition of essential oil in leaves and inflorescences of soilless grown Lavandula dentata. Plants were grown in pots filled with sand, inside a polyethylene greenhouse, in a closed system at UFSM. Plants were harvested at 150, 213 and 320 days after planting date (DAP) in winter, spring and summer, respectively. At 150 DAP, a 50% shading screen was installed. The experimental design was a randomized 3x2 factorial in subdivided plots with 36 plants per subplot. Fresh (FM) and dry mass (DM), yield and chemical composition of essential oil in leaves and inflorescences were determined after each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lavandula dentata; Aromatic plant; Phytomass; Solar radiation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200259 |
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