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Campomanesia adamantium (Cambess.) O. Berg seed desiccation: influence on vigor and nucleic acids Anais da ABC (AABC)
DRESCH,DAIANE M.; MASETTO,TATHIANA E.; SCALON,SILVANA P.Q..
The aim of this study was to evaluate the sensitivity of Campomanesia adamantium seeds to desiccation by drying in activated silica gel (fast) and under laboratory conditions (slow). To assess the sensitivity of the seeds to desiccation, we used drying with silica gel and drying under laboratory conditions (25 °C), in order to obtain seeds with moisture content of 45, 35, 30, 25, 20, 15, 10 and 5%. The physiological potential of the seeds after desiccation was evaluated by measuring primary root protrusion, percentage of normal seedlings, germination seed index, seedling length, total seedling dry mass, electrical conductivity and DNA and RNA integrities. The C. adamantium seeds were sensitive to desiccation and to a reduction in moisture content to 21.1%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado; DNA; Drying; RNA; Viability.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502217
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Photosynthetic metabolism and quality of Eugenia pyriformis Cambess. seedlings on substrate function and water levels Anais da ABC (AABC)
SCALON,SILVANA P.Q.; JEROMINI,TATIANE S.; MUSSURY,ROSILDA M.; DRESCH,DAIANE M..
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),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado; Myrtaceae; Seedling production; Uvaia.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000402039
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Postharvest conservation of the tuberous roots of Pachyrhizus Ahipa (Wedd) Parodi Anais da ABC (AABC)
MUSSURY,ROSILDA M.; SCALON,SILVANA P.Q.; SILVA,MAGAIVER A.; SILVA,TATIANE F.; GOMES,HELLEN; GASSI,ROSIMEIRE.
This paper aimed to evaluate the effects of storage periods on the conservation of Pachyrhizus ahipa roots at different temperatures and packaging materials. The roots were harvested, washed, packed in PVC, plastic bags, without wrappings (control) and stored in polystyrene trays in refrigerators, or cold chambers, or at room temperature. Total titratable acidity (TTA), total soluble solids (TSS), pH, as well as their ash, lipid, total carbohydrate and protein (dry basis) contents were analyzed. The lowest loss of root fresh weight was observed in the cold chamber and plastic bags. The TTA remained higher among roots stored in the cold chamber and in PVC packaging. The lowest TSS contents were observed for roots stored in the cold chamber, and these did...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Yam bean; Storage conditions; Packaging; Preservation.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200761
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Effect of storage in overcoming seed dormancy ofAnnona coriacea Mart. seeds Anais da ABC (AABC)
DRESCH,DAIANE M.; SCALON,SILVANA P.Q.; MASETTO,TATHIANA E..
The aim of this study was to evaluate the effect of pre-treatments on overcoming dormancy of A. coriacea seeds. Seeds were processed and stored in polyethylene bags at temperatures of at -18°C (42% RH), 5°C (34% RH), 15°C (60% RH) and 25°C (34% RH), during 0, 30, 60, 90, 120 and 150 days. After storage, seeds were immersed in 350 mg.L−1 gibberellic acid for 144 hours. Sowing was carried out in plastic bags containing Red Latosol + Bioplant®. Moisture content, emergence percentage, emergence speed index, length and dry mass of seedlings, were evaluated. The experimental design was completely randomized in a factorial with four replications of 50 seeds each. The seed storage at 5°C and subsequent immersion in gibberellic acid was efficient to reach high...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Annonaceae; Gibberellins; Brazilian Savanna; Temperatures.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000402077
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Osmotic conditioning and shading on the germination and on the initial growth of Myracrodruon urundeuva Allemão seedlings Anais da ABC (AABC)
SCALON,SILVANA P.Q.; MOTA,LEANDRO H.S.; MUSSURY,ROSILDA M..
The present work aimed to evaluate the osmotic conditioning and shading on the germination and on the initial growth of aroeira seedlings. The seeds were pre-imbibed in solutions with different concentrations of PEG (polyethylene glycol) and KNO3 and incubated at 10°C and 20°C temperatures, during 0 (control), 12 and 24 hours. After these periods, the seeds were dried until they reached the initial levels of humidity. After that, they were put for germinating in BOD (Biochemical Oxygen Demand) chambers, at alternated 20-30°C. The control treatment and the pre-conditionings that presented the best results in BOD germination were selected, PEG (-1.0 MPa) + KNO3 (-1.0 MPa) and KNO3 (-1.0 MPa), with pre-imbibition for 12 h and incubated in BOD at 20°C. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aroeira; Anacardiaceae; Cerrado; Shading; PEG 6000 and KNO3.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200799
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Gas exchange and antioxidant activity in seedlings of C opaifera langsdorffii Desf. under different water conditions Anais da ABC (AABC)
ROSA,DEREK B.C.J.; SCALON,SILVANA P.Q.; CREMON,THAIS; CECCON,FELIPE; DRESCH,DAIANE M..
ABSTRACT The aim of this study was to evaluate gas exchange, efficiency of the photosynthetic apparatus, and antioxidant activity in Copaifera langsdorffii Desf. The seedlings were cultivated under different conditions of water availability, in order to improve the utilization efficiency of available water resources. The seedlings were cultivated in four different water retention capacities (WRC- 25%, 50%, 75%, and 100%), and evaluated at four different time (T- 30, 60, 90, and 120 days). During the experimental period, seedlings presented the highest values for carboxylation efficiency of Rubisco (A/Ci), intrinsic water use efficiency (IWUE = A/gs), chlorophyll index, and stomatal opening, when grown in the substrate with 75% WRC, but the stomatal index...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidant enzymes; Chlorophyll a fluorescence; Photosynthesis; Water stress..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603039
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Feeding preference of Plutella xylostella for leaves treated with plant extracts Anais da ABC (AABC)
COUTO,IRYS F.S.; FUCHS,MATEUS L.; PEREIRA,FABRÍCIO F.; MAUAD,MUNIR; SCALON,SILVANA P.Q.; DRESCH,DAIANE M.; MUSSURY,ROSILDA M..
ABSTRACT Plutella xylostella L. is one of the main agents to cause damages to plants of Brassica genus, provoking negative impacts in cultures. The use of botanical extracts in plants protection has been related in literature, however, their use in the species analyzed in this study is not yet reported. We assessed the effect of aqueous and methanolic extracts of the species: Schinus terebinthifolius Raddi (Pink Pepper), Annona coriacea Mart. (Araticum), Duguetia furfuracea (A. St.-Hil.) Benth. & Hook. (Pindaúva do campo) and Trichilia silvatica C. DC. (Catiguá-branco), occuring in the state of Mato Grosso do Sul and whose feeding preference of P. xylostella larvae of 3rd instar. We intend to answer the following questions: (1) Are the plant species...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Annona coriacea; Duguetia furfuracea; Feeding deterrence; Insecticidal plant; Schinus terebinthifolius; Trichilia silvatica.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501781
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Drying and reduction in sensitivity to desiccation of seeds of Alibertia edulis: the influence of fruit ripening stage Anais da ABC (AABC)
CREMON,THAIS; DRESCH,DAIANE M.; SCALON,SILVANA P.Q.; MASETTO,TATHIANA E..
ABSTRACT The intense environmental degradation in tropical regions suitable for agriculture has decreased native forest populations of plants with important fruits and medicinal properties. Alibertia edulis is a native tree from the Brazilian Cerrado. Knowledge about the effects of drying and storage on the physiological behavior of its seeds may aid in its sustainable exploitation and conservation. The goal of the present study was to determine which fruit ripening stage results in A. edulis seeds with higher tolerance to desiccation, and to investigate the effectiveness of polyethylene glycol (PEG) induced osmotic stress in combination with abscisic acid (ABA) in increasing seed desiccation tolerance during storage. Seeds were dried in activated silica...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fast drying; Slow drying; Polyethylene glycol; Abscisic acid; Storage.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401481
Registros recuperados: 8
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