Plutella xylostella L. is one of the main agents to cause damages plants Brassica genus, provoking negative impacts in cultures. The use botanical extracts protection has been related literature, however, their species analyzed this study not yet reported. We assessed effect aqueous and methanolic species: Schinus terebinthifolius Raddi (Pink Pepper), Annona coriacea Mart. (Araticum), Duguetia furfuracea (A. St.-Hil.) Benth. & Hook. (Pindaúva do campo) Trichilia silvatica C. DC....

The aim of this study was to evaluate the sensitivity Campomanesia adamantium seeds desiccation by drying in activated silica gel (fast) and under laboratory conditions (slow). To assess desiccation, we used with (25 °C), order obtain moisture content 45, 35, 30, 25, 20, 15, 10 5%. physiological potential after evaluated measuring primary root protrusion, percentage normal seedlings, germination seed index, seedling length, total dry mass, electrical conductivity DNA RNA integrities. C. were...

The objective of this study was to evaluate chlorophyll a fluorescence as stress indicator in Calophyllum brasiliense Cambess seedlings grown with different concentrations abscisic acid (ABA) under intermittent water deficit condition: daily irrigation without ABA (I); + 10 μM (I 10); 100 100); suspension (SI); (SI 10) and 100). reduces status impairs the photochemical apparatus functioning seedling quality. measurements helped identify condition cultivation C. beneficial effect application...

Abstract Silicon (Si) is a beneficial element that can mitigate effects of water stress on photosynthetic metabolism and plant growth. Thus, the aimed was to evaluate effect Si in mitigating stressful deficit flooding Eugenia myrcianthes Nied. seedlings. The seedlings received three silicon doses (0, 2, 4 mmol) were subjected two regimes (I – continuous irrigation S fluctuation, characterized as obtained by cycles regimes: suspension flooding). Each cycle ended when had rate close zero (P0)...

O conhecimento dos aspectos biométricos de frutos e sementes a sua influência na germinação são importantes para produção características espécies nativas. Este trabalho objetivou avaliar do tamanho fruto da semente vigor gabiroba (Campomanesia adamantium). Para caracterização biométrica, foram selecionados, aleatoriamente, 120 frutos, divididos, visualmente, em quatro classes, com predominância tamanho, nas quais avaliados o diâmetro longitudinal transversal massa das sementes. A foi...

The aim of this research was to evaluate the quality and photosynthetic metabolism “uvaia” seedlings (Eugenia pyriformis Cambess.) on different substrates water regimes. seeds were sown in tubes 50 x 190 mm following substrates: Sand (S), Latosol + (L S) (1:1), Semi Decomposed Poultry Litter S1 PL) ( 1:1:0.5), S2 (1:2:0.5), Bioplant® B) levels assessed 50, 75 100% retention capacity. At 60, 90, 120 150 days evaluated according their chlorophyll index, leaf area (cm2) Dickson Quality Index...

Objetivou-se com este trabalho avaliar a conservação pós-colheita de guavira (Campomanesia adamantium Camb.) em diferentes revestimentos e temperaturas armazenamento. Os frutos receberam os seguintes tratamentos: imersão 1) carboxi metilcelulose 1% (m/v) (CMC); 2) pectina 3%; 3) + cloreto cálcio 3% (m/v), 4) sem tratamento (ST), todos embalados polietileno baixa densidade (PEBD) armazenados por 0; 7; 14 21 dias câmara B.O.D., nas 5; 10 15 ºC. A menor perda massa acidez titulável foram...

The present work evaluated the conservation of Campomanesia adamantium seeds under different conditions. fruits used in study were collected from matrices located city Ponta Por&atilde-MS, Brazil. After processing, slowly dried to water content levels and subsequently exposed various environmental conditions: 25&degC ± 2&degC, 35% relative humidity (laboratory); 16&degC 1&degC, 40% (cold dry); 8&degC (refrigeration); -18&degC 42% (freezing). Each treatment was conducted for 0 (recently...

Considering the wide distribution of Hancornia speciosa Gomes in Brazilian savanna, environment with irregular rainfall, it is believed that their seedlings can be cultivated for a few days under water restriction, information stimulate use this species restoration or planting sustainable exploration programs.The present study evaluated gas exchange and photosynthetic activities H. examined tolerance to deficit metabolic recovery after rehydration.We rate, internal carbon concentration,...

The aim of this study was to evaluate gas exchange, efficiency the photosynthetic apparatus, and antioxidant activity in Copaifera langsdorffii Desf. seedlings were cultivated under different conditions water availability, order improve utilization available resources. four retention capacities (WRC- 25%, 50%, 75%, 100%), evaluated at time (T- 30, 60, 90, 120 days). During experimental period, presented highest values for carboxylation Rubisco (A/Ci), intrinsic use (IWUE = A/gs), chlorophyll...

This study was carried out in the greenhouse of Federal University Grande Dourados (UFGD), municipality Dourados, state Mato Grosso do Sul, Brazil, from April to May 2015. The aim this assess effect different concentrations abscisic acid (ABA) on responses under water stress and recovery Hymenaea courbaril L. seedlings after reirrigation. following six treatments were assessed: 1) Irrigation with no ABA; 2) + 10 µM 3) 100 4) No irrigation nor 5) 6) ABA. treatment consisted suspension until...

The success of restoration practices in areas subject to seasonal flooding is associated with the selection plant species tolerant both and post-flooding conditions. Morphophysiological changes Ormosia arborea (Vell.) Harms (Fabaceae) seedlings were studied evaluate plasticity related water regime. O. flooded for 0, 15, 30, 45 60 days. At end each period, removed from pools assess seedling survival at 75 days after completion survived under regime expressed lenticel hypertrophy. During...

Soil water availability and light are abiotic factors that may be plant stressors when they subjected to unfavorable conditions limit their metabolism trigger protection mechanisms. The aim of this study was evaluate morphological metabolic strategies in Cedrela fissilis seedlings enable survival resilience flooding shading. were cultivated under for 0, 10, 20, 30, 40 days or received only rainwater (control: 120 mm distributed over 35 evaluation with a daily maximum 28 mm). Flooding...

In this research it was hypothesized that Campomanesia xanthocarpa can overcome some level of water deficiency by adjusting physiological parameters and shading minimizes the deficit effects while maintaining elevated photosynthetic rates relative content leaves makes a resumption metabolism growth when supply is normalized. The seedlings were submitted to two regimes (continuous irrigation - CI intermittent II), three percentages (0, 30 70%) six evaluation times (Start T0, 1st...

Information on germination, seedling development, and substrates water requirements of native Savannah species are scarce, for propagation plantation establishments.Based this, we evaluated the initial growth Campomanesia adamantium seedlings sown into tubes containing with different compositions retention capacities, including red latosoil; latosoil Bioplant ® (1:1); latosoil, sand, semidecomposed poultry manure (1:1:0.5);red sand (1:2:0.5).The were irrigated three times per week to 25%,...

Abstract The objective of this study was to evaluate the activity antioxidant enzymes, functioning photosystem II and quality C. xanthocarpa seedlings cultivated under intermittent water deficit shading levels influence on recovery potential after suspension stress conditions. were subjected three (0, 30, 70%), six periods evaluation (start: 0 days; 1st 2nd photosynthesis zero: P0; recovery: 1stand REC; END), two forms irrigation (control: periodically irrigated maintain 70% substrate...

ABSTRACT Schinus terebinthifolius Raddi is a tree species that can be used in the recovery of degraded areas, as it exhibits rapid growth and has very expansive root system, facilitating water uptake from deeper layers soil. The objective this study was to evaluate photosynthesis enzymatic activity S. seedlings under conditions deficit their potential recover following re-irrigation. experiment conducted greenhouse plastic covering where plants were distributed into two groups: Group 1 -...

Alibertia edulis Rich. is a native species of the Brazilian Cerrado and can be used for reforestation degraded areas. In addition, it produces edible fruits. The objective this study was to evaluate effect substrates water levels on emergence, initial growth, quality seedling A. edulis. tested were: latosol (L), + sand (L S = 1:1), chicken manure S1 CM 1:1:0,5), S2 1:2:0,5), commercial substrate C 1:1); retention capacities (WRC) 25, 50, 75, 100%. experiment carried through in completely...

This study aimed to evaluate the tolerance of Psidium guineense Swartz seeds air-dry storage and priming. Desiccation was analyzed for seed moisture content 15%, 10% 5%. The longevity during in with 5% maintained cold dry chamber (16°C ± 1°C/40% RH), laboratory environment (25°C 2°C/60% refrigerator (5°C 1°C) freezer (-18°C 90 days, priming effect that were imbibed 5 or 10 days polyethylene glycol 6000 at osmotic potentials -0.3 MPa, -0.5 -0.7 MPa -1.3 MPa. quality evaluated after...

This article aims at evaluating the effects of different packaging and varied storage temperatures on germination potential seeds Campomanesia adamantium Camb. O. Berg. The were packaged in glass, aluminum foil plastic containers, or maintained inside intact fruits 5, 10 15 ºC during 0, 7, 14 21 days. After these periods sown Germitest® paper incubation chambers 25 under constant white light for 42 Seed moisture contents evaluated both before after storage, as well percentages, speed index,...

Abstract Water deficit to causes serious problems in the growth and development of plants, impairing their metabolism. Thus, it is necessary use agents that can mitigate plant damage. This study assesses potential silicon water stress Dipteryx alata Vogel seedlings help recovery after resumption irrigation. The analyzed four regimes: (I) Continuous irrigation; (II) without Si; (III) + 0.75 mL (IV) 1.50 Si. Seedlings were evaluated periods: (1) (T0 – time zero) at beginning experiment, before...