Rising temperature affects agricultural production, causing food insecurity. Thus, the objective of this study was to evaluate how increased influences pollen viability, photosynthetic and enzymatic responses, their consequences on final yield cowpea cultivars. The cultivars BRS Acauã, Guariba, Gurguéia, Pajeú were used, kept in growth chambers under two regimes: 24.8–30.8–37.8 °C 20–26–33 °C. showed prolonged flowering greater flower abortion, at 23.58%, 34.71%, 25.55%, respectively, an...

Selecting genotypes tolerant to high temperatures is an important measure for agricultural maintenance and production in climate change scenarios. Thus, this study aimed select cowpea increased air temperature. A total of 20 were used, cultivated under temperature regimes 20–26–33 °C 24.8–30.8–37.8 a completely randomized experimental design 2 × factorial scheme (temperature genotypes). The BRS Inhuma, Bico-de-Ouro-17-45, Guariba, Imponente did not show significant differences the analyzed...

O objetivo deste estudo foi avaliar a qualidade de produtos digitais obtidos em levantamentos topográficos com aeronave remotamente pilotada para fins georreferenciamento imóveis rurais. realizado no Instituto Federal Educação, Ciência e Tecnologia do Maranhão, Campus São Raimundo das Mangabeiras. Foram selecionadas três áreas diferentes declividades terreno: 0 5%, 5 10% 10 20%. Em cada área foram realizados geodésicos GNSS aerofotogramétrico (em alturas voo: 70, 80 90 m) coletar as...

The Cerrado is Brazil’s second largest biome, covering continuous areas in several states. Covering approximately 23% of territory, the biome connects with all main biomes South America, thus forming a major biological corridor. This one those that has suffered most from incidence wildfires, leading to progressive depletion region’s natural resources. aim this study was evaluate use an Unmanned Aerial Vehicle (UAV) embedded RGB sensor obtain high-resolution digital products can be used...

ABSTRACT The increase of CO2 concentrations and temperatures may affect the plant development production. This study aimed to evaluate impact increased temperature carbon dioxide concentration on cowpea cultivars. experiment was conducted in growth chambers, with control temperature. A completely randomized design carried out, a 4 x 3 2 factorial arrangement [cultivar (day/night) CO2], three replicates. duration vegetative reproductive phases evaluated and, at end experiment, number pods per...

ABSTRACT Water deficit and high temperatures are abiotic factors that most limit plant growth development. However, its effects depend on crop development stage stress duration intensity. Thus, the objective of was to evaluate cowpea subjected water restriction in different phenological stages increase air temperature. The experiment conducted with cultivar ‘Carijó’, chambers, a 4 x 3 2 factorial arrangement, corresponding levels availability (25, 50, 75, 100%,), (vegetative, flowering pod...

ABSTRACT In order to obtain an efficient cultivation of grain sorghum in production systems that use saline water, adequate management becomes necessary for maximizing its production. The present study aimed evaluate the effect application leaching fractions water irrigation on varieties and distribution salts soil profile, under semiarid conditions. was carried out municipality Petrolina, region Brazil. experimental design randomized blocks, with four replicates, split-split plots; (LF): 0,...

Cowpea planting season is crucial for high yield and should comprise the period of year that warrants best climatic conditions cowpea cultivation. Thus, objective this study was to evaluate influence water availability temperature on performance cultivars. A greenhouse experiment conducted using a 4 × 2 5 factorial arrangement, with four replications. Factors included levels soil moisture (25, 50, 75, 100% holding capacity), two growing seasons (mild hot), five cultivars (Carijó, Itaim,...

Abstract Growing in a saline environment causes changes important physiological processes that are directly related to plant growth and development. In this study we evaluated the effect of salinity on transpiration sorghum plants semi-arid conditions found highest rates were observed hottest hours day, between 10 a.m. 3 p.m., with subjected having their reduced by up 70% when compared non-saline environment. This behavior can be reflected reductions development due water absorption roots,...

Climate changes can influence the genetic diversity of forage plants, which may contribute to improvement and development new species. Therefore, this research aimed evaluate temperature increase on Macroptilium accessions based morphoagronomic descriptors. The experiment was carried out in a growth chamber 2×16 factorial arrangement (temperature regimes x accessions), with temperatures consisting T1 (20–26–33 °C) T2 (24.8–30.8–37.8 16 accessions. Eleven descriptors allowed estimating among...

O aumento da temperatura e concentração de dióxido carbono pode causar impacto na germinação no desenvolvimento inicial das plântulas Caatinga. Assim, objetivou-se avaliar o do CO2 emergência Anadenanthera colubrina, Myracrodruon urundeuva, Poincianella pyramidalis. As sementes foram semeadas em tubete (50 cm3) contendo substrato comercial para mudas florestais mantidas câmaras crescimento sob duas concentrações atmosférico (390 770ppm) dois regimes (18-24-30 °C 22-28-34 °C). A porcentagem,...

Temperature is one of the climatic elements that affect most germination process and seedling development. Thus, objective this study was to evaluate development cowpea cultivars under increasing temperature. The seeds Acauã, Carijó, Guariba, Gurguéia, Itaim, Juruá, Pajeú, Potengi, Pujante, Rouxinol, Tapahium, Tumucumaque were kept in chamber at temperatures 20, 25, 30, 35 40°C, with photoperiod 12 h. Cowpea have optimal performance range 30.49 - 35.48°C. presented percentage above 91%...

Water deficit and high temperature limit agricultural productivity, affecting plant growth, development, metabolism. Thus, the objective of this study was to evaluate impact interaction between water increase on cowpea production. The experiment carried out with cultivar BRS Rouxinol, in growth chambers, a 4 × 2 factorial arrangement, being four soil availability (25; 50; 75 100% field capacity) two daily regimes (T°1: 20-26-33 °C T°2: 24.8-30.8-37.8 °C). favored an shoot root dry mass....

O mercado de frutas tropicais ou exóticas vem crescendo, fortemente, nos últimos anos, tanto no interno, quanto externo e a carambola se destaca como uma opção rentável diversificação alternativa cultivo ao fruticultor. A cultura da é originária Ásia, Brasil está em franca expansão, com pomares cujas informações sobre desempenho, qualidade composição química são escassas. presente trabalho teve objetivo caracterizar física quimicamente carambolas produzidas vale do submédio São Francisco....

A utilização de água com altos teores sais pode causar desequilíbrio nutricional e redução na produtividade das culturas. Nesse contexto, o objetivo do trabalho foi avaliar a extração nutrientes três variedades sorgo forrageiro cultivadas sob diferentes lâminas irrigação efluente salino da piscicultura. O experimento conduzido em condições campo, sendo os tratamentos provenientes um esquema fatorial 3x4, (Volumax, F305 Sudão) quatro frações lixiviação (0; 5; 10 15%), dispostos parcelas...

Plant yield is directly affected by the increase in air temperature and water availability soil. Therefore, objective with this study was to evaluate physiological productive performance of sorghum cultivars as a function soil at cultivation time. The research carried out Embrapa Semi-Arid, municipality Petrolina, Pernambuco state, Northeast region, Brazil, planting June 2021 January 2022. experiment conducted randomized block design 2 × 6 4 factorial arrangement, two growing seasons (season...

<title>Abstract</title> Background and Aims Climatic changes are impacting crop production worldwide. Among that will occur in future climatic scenarios, increasing temperatures by 4.8º C the end of this century would be one most impactful situations for plants their interaction with ecological partners. This study aimed to assess impact different plant-growth-promoting bacteria inoculants on cowpea growth diversity rhizobia associated its root nodules. Methods Two genotypes were assessed at...

Global projections indicate that the demand for fresh water, energy, and food will increase significantly in coming decades under pressure of population growth, economic development, climate change, other factors. Faced with this, technologies promote sustainable development through use clean energy be imperative. That way, this study aimed at evaluating productive performance biomass sorghum cowpea cultivars different cropping systems planting seasons. The experiment was conducted Caatinga...

ABSTRACT Considering that changes in climatic parameters directly interfere crop yields, this study aimed to evaluate the impact of carbon dioxide concentrations, temperature and soil water availability on production, water-use efficiency onion (Allium cepa L. cv. IPA 11) quality. Four levels (40, 60, 80 100 %) two concentrations atmospheric CO2 (770 390 ppm) were evaluated three experiments with different regimes (18-24-30, 22-28-34 26-32-38 ºC), Phytotron growth chambers. The efficiency,...

O cultivo do sorgo em ambientes salinos provoca alterações importantes nos processos fisiológicos que são diretamente relacionados com a produtividade das plantas. estudo objetivou avaliar o efeito da irrigação, água salina, na produtividade, atividade enzimática e nas trocas gasosas variedades de granífero. Três foram submetidas frações lixiviação salina condutividade elétrica 4,19 dS m-1, esquema parcelas subdivididas. Foram avaliadas as variáveis distribuição sais no solo, taxa...