Data/hora: 10/06/2024 12:13:24

Provedor de dados: | 42
País: | Brazil
Título: | Photosynthetic metabolism and quality of Eugenia pyriformis Cambess. seedlings on substrate function and water levels
Autores: | SCALON,SILVANA P.Q.; JEROMINI,TATIANE S.; MUSSURY,ROSILDA M.; DRESCH,DAIANE M.
Data: | 2014-12-01
Ano: | 2014
Palavras-chave: | Cerrado; Myrtaceae; Seedling production; Uvaia.
Resumo: | The aim of this research was to evaluate the quality and photosynthetic metabolism of “uvaia” seedlings (Eugenia pyriformis Cambess.) on different substrates and water regimes. The seeds were sown in tubes of 50 x 190 mm in the following substrates: Sand (S), Latosol + Sand (L + S) (1:1), Latosol + Sand + Semi Decomposed Poultry Litter (L + S1 + PL) ( 1:1:0.5), Latosol + Sand + Semi Decomposed Poultry Litter (L + S2 + PL) (1:2:0.5), Latosol + Bioplant® (L + B) (1:1), and the water levels assessed were 50, 75 and 100% of water retention capacity. At 60, 90, 120 and 150 days the seedlings were evaluated according to their chlorophyll index, leaf area (cm2) and Dickson Quality Index (DQI) and at 150 days their internal concentration of carbon (mol m–2s–1), stomatal conductance (mol m–2 s–1), transpiration rate (mmol m–2 s–1), photosynthesis (µmol m–2 s–1) and efficiency of water use (µmol de CO2 / mmol de H2O). Until their 150th days, the seedlings had higher quality and photosynthetic metabolism when cultured with substrates containing latosol + sand + poultry litter on the two variations assessed and water retention capacity of 50%.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000402039
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201420130249
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.86 n.4 2014
Fonte: | info:eu-repo/semantics/openAccess