Using multispectral sensors attached to unmanned aerial vehicles (UAVs) can assist in the collection of morphological and physiological information from several crops. This approach, also known as high-throughput phenotyping, combined with data processing by machine learning (ML) algorithms, provide fast, accurate, large-scale discrimination genotypes field, which is crucial for improving efficiency breeding programs. Despite their importance, studies aimed at accurately classifying sorghum...

ABSTRACT The integration multispectral sensors with machine learning algorithms has demonstrated increasing efficacy in the classification of various maize morphophysiological characteristics. hypothesis this study is that plants subjected to different irrigation management practices exhibit distinct spectral behaviors, allowing for their through modeling. Thus, objective classify hybrids using images. This involves identifying most effective and inputs variables enhance model performance...

Photosynthetic efficiency has become the target of several breeding programs since positive correlation between photosynthetic rate and yield in soybean suggests that improvement may be a promising for new gains. However, studies on combining ability genotypes physiological traits are still scarce literature. The objective this study was to estimate based F2 generation aiming identify superior parents segregating populations traits. Twenty-eight resulting from partial diallel crossings...

Predicting maize yield using spectral information, temperature, and different irrigation management through machine learning algorithms provide information in a fast, accurate, non-destructive way. The use of multispectral sensor data coupled with allows further exploration water behavior its relationship changes bands presented by the crop. Thus, objective this study was to evaluate, means multivariate statistics techniques, between predicting yields. Field experiments were carried out over...

Using remote sensing combined with machine learning (ML) techniques is a promising approach to classify soybean cultivars. Therefore, the objectives of this study are (i) verify which input dataset configuration (using only spectral bands, vegetation indices, or both) more accurate in identification cultivars, and (ii) ML technique Information was extracted from five central irrigation pivots same region sowing date 2015/2016 crop year, each pivot cultivated different cultivar, cultivars...

Abstract Gas exchange analysis is an important technique, as the reduction in yield may be related to decreased photosynthetic activity, due adverse climatic factors growing site. The hypothesis of this study was that contrasting soil water conditions result different performance soybean genotypes. Thus, our objective analyse physiological capacity genotypes under field with optimal moisture and deficit. experimental design random blocks 10 (P1, P2, P3, P4, P5, P6, P7, P8, P9 P10) three...

This study was conducted at the Agronomic Institute of Paraná (IAPAR) in Londrina, State (PR), Brazil (latitude 23º18'S, longitude 51º09'W and average altitude 585 m). The local climate, according to classification Köeppen, is Cfa type, i.e., humid subtropical with rain all seasons can occur dry during winter. It determined soil evaporation (E) under different coverage densities residue from wheat crop. treatments were installed weighting lysimeters 2.66 m² 1.3 m deep, which allows determine...

No Brasil a Soja é plantada em diferentes regiões com os mais diversos regimes de chuvas. Assim esse trabalho propôs estudar o estresse hídrico causado tanto por déficit como excesso aplicação água na cultura da soja. O experimento foi conduzido no Departamento Engenharia Biossistemas-ESALQ/USP, Piracicaba-SP, dezembro 2011 março 2012. Foi construída uma casa vegetação, equipada 44 lisímetros drenagem 1,1 m x 1,3 e 0,75 profundidade. delineamento experimental blocos casualizados 4...

A utilização do déficit hídrico controlado na irrigação reduz os custos de produção.Assim,esse trabalho propôs estudar a com em diferentes fases da cultura soja. O experimento foi conduzidono Dep. Eng.de Biossistemas-ESALQ/USP, Piracicaba-SP, no ano agrícola 2012/13,utilizando uma casa vegetaçãoequipada 48 lisímetros drenagem de1,1 m largura,1,3mde comprimento e 0,75m profundidade. delineamento foiem blocos casualizados 4repetições para aplicação dos tratamentos,o ciclo dividido nos...

Abstract This retrospective cohort study analysed extracellular vesicles (EVs) and microRNAs (miRNAs) excreted in canine sera from dogs with visceral leishmaniasis (CanVL). A total of 56 were divided into Group I (28, healthy dogs) II the same dogs, but already CanVL). CanVL was determined by clinical laboratory diagnoses. Canine ultra‐centrifuged to recover EVs (Can‐EVs). Analyses transmission electron microscopy, nanoparticle tracking analysis (NTA), sodium dodecyl sulfate‐poli‐acrylammide...

The different conditions of soil vegetation cover combined with irrigation management and/or agricultural production systems can influence moisture content and crop yields. This study investigated the impact center pivot on during cultivation soybean off-season corn crops. Two field experiments were conducted 2018–2019 growing season in tropical Cerrado conditions; one experiment consisted application three water depths (0%, 50%, 100% evapotranspiration) a no-tillage system under ruzigrass...

The objectives of this work are (i) to classify soybean cultivars under different irrigation managements using hyperspectral data, looking for the best machine-learning algorithm classification and input that improves performance models. experiment was implemented in 2023/24 harvest experimental area Federal University Mato Grosso do Sul, Câmpus Chapadão it conducted a strip scheme with seven subjected irrigated rainfed management. Sixty days after crop emergence, three leaves per plot were...

In Brazil, the common bean crop has representative agricultural exploitation, not only because of its production economic value, but also there is a large cultivation area.This research aimed to investigate direct and indirect relationship morphological components on grain yield in plants.This study was carried out Quartzarenic Neosol municipality Cassilândia, Mato Grosso do Sul State, year 2016/2017.The evaluated traits were: grains (GY) with primary components; mass one hundred (HG);...

A acurácia das leituras de sensores umidade depende da qualidade do aparelho, mas também sua calibração. Esses eletrônicos já vêm fábrica com calibração, porém, sabe-se que esta varia o tipo solo. O objetivo desse trabalho foi calibrar sensor Falker, modelo Hidrofarm, em solo textura arenosa e argilosa. Foram utilizadas colunas PVC 0,1 m diâmetro por 0,3 altura, inseridas no após saturação, permitiram coletar amostras indeformadas, sem a desagregação mesmas. No laboratório, cada coluna...

This study was conducted at the Agronomic Institute of Parana (IAPAR), Londrina, state (latitude 23° 18' S, longitude 51° 09' W, average elevation 585 m). Londrina's climate in Köppen's classification is Cfa type, that is, humid subtropical with rain all seasons and droughts winter. Soil water evaporation (E) determined for different soil mulching cover fractions. The treatments were applied on 2.66 m2 x 1.3 m deep weighing lysimeters determination E by mass...

ABSTRACT Reductions in soybean yields are mainly linked to the occurrence of dry spells, which becoming more frequent due climate change. Thus, aim this study was evaluate cultivars irrigated with different water depths under center pivot. The experiment conducted during 2014/15 growing season, center-pivot irrigation Chapadão do Sul, MS, Brazil. design a randomized block split plot four replicates, where plots consisted 4 (0, 50, 75 and 100% crop evapotranspiration - ETc) subplots 6 (NA...

This study describes the use of X-ray fluorescence spectroscopy in Crotalaria ochroleuca seed technology. work evaluated techniques to estimate physiological performance different C. coat colours based on concentration and distribution Ca, P, K, S structures. The treatments consisted seeds separated by (yellow, green, red) a control treatment (colour mix according their natural occurrence commercial lots), was carried out completely randomized design, with four replications. analyzing water...

Planting density can influence the competitiveness among plants mainly by water, nutrients and solar radiation, directly affecting yield. The purpose of this study was to evaluate productivity different soybean cultivars at planting populations under irrigated rainfed conditions. experiment conducted during 2014/15 growing season, center pivot irrigation in Chapadão do Sul – MS, Brazil. experimental design randomized complete block with split-plot, as follows: Irrigated Rainfed (plots) x Six...

No cenário da agricultura atual, um dos principais fatores limitantes na produtividade de soja, é a ocorrência verânicos durante o ciclo cultura. O uso coberturas vegetais, associado prática do plantio direto, vem sendo amplamente utilizado, para melhoria solos e, principalmente em áreas textura arenosa, reduzir os efeitos ocasionados pela baixa disponibilidade água. Sob hipótese que apenas cobertura vegetal não suficiente sanar défice hídrico, objetivou-se avaliar efeito combinado...

O objetivo deste trabalho foi verificar a viabilidade econômica do uso de esgotos sanitários, tratados com diferentes níveis eficiência, para fertirrigação por pivô central em cultivos algodão e soja. estudo desenvolvido meio da simulação comparação dois projetos tratamento esgoto sanitário serem instalados na cidade Correntina (BA). Para os cálculos viabilidade, utilizou-se planilha eletrônica AmazonSaf. Foram propostos cenários o posterior fertirrigação: cenário A (pré-tratamento seguido...

ABSTRACT Reduction of leaf area significantly affects maize productivity, due to its low plasticity. Thus, appropriate water application can minimize this problem, considering that under favorable conditions the plant would express maximum production potential. The aim study was evaluate influence irrigation on productive performance sweet corn submitted different defoliation levels at beginning crop cycle. experimental design a randomized block design, arranged in split plot scheme; plots...

Abstract The objective of the present work was to perform an economic analysis centre‐pivot irrigation implantation on a sandy soil area with different previous land uses. Thus, it possible analyse three initial conditions inside (irrigated) and outside (rainfed) centre pivot. opening (P1) characterized by soybean planting for first time after degraded pasture, P2 consisted second year harvesting soybean/maize season, P3 third harvest. Two crops were evaluated: maize. system not profitable...