A5042723081- Peanut Plant Research Studies
- Coconut Research and Applications
- Soybean genetics and cultivation
- Agricultural pest management studies
- Growth and nutrition in plants
- Soil Management and Crop Yield
- Agronomic Practices and Intercropping Systems
- Agricultural and Food Sciences
- Nitrogen and Sulfur Effects on Brassica
- Mycotoxins in Agriculture and Food
- Seed Germination and Physiology
- Plant Virus Research Studies
- Plant Disease Management Techniques
- Enterobacteriaceae and Cronobacter Research
- Genetics and Plant Breeding
- Insect Pest Control Strategies
- Weed Control and Herbicide Applications
- Spectroscopy and Chemometric Analyses
- Insect and Pesticide Research
- Plant Disease Resistance and Genetics
- Insect-Plant Interactions and Control
- Educational theories and practices
- Cassava research and cyanide
- Extraction and Separation Processes
- Listeria monocytogenes in Food Safety
Agronomical Institute of Campinas
2014-2023
IAC (United States)
1999-2020
Pontifícia Universidade Católica de Campinas
2020
Brazilian Agricultural Research Corporation
2020
University of Georgia
2020
Governo do Estado de São Paulo
2020
Instituto Agronômico do Paraná
1996-2020
Núcleo de Pesquisas Aplicadas (Brazil)
2018
Universidade Estadual Paulista (Unesp)
2018
National Council for Scientific and Technological Development
1997-2018
The amount of visible and near infrared light reflected by plants varies depending on their health. In this study, multispectral images were acquired a quadcopter for high throughput phenotyping tomato spot wilt disease resistance among twenty genotypes peanuts. visually assessed to acquire ground truth ratings incidence. Multispectral processed into several vegetation indices. index image each plot has unique distribution pixel intensities. percentage number pixels above below varying...
Premise of the Study The genetic bottleneck polyploid formation can be mitigated by multiple origins, gene flow, and recombination among different lineages. In crop plants with limited efforts to increase diversity have limitations. Here we used lineage in peanut, an allotetraploid likely single origin, crossing a novel allopolyploid genotype selecting improved lines. Methods Single backcross progeny from cultivated peanut × wild species‐derived cross were studied over successive...
Significance A great challenge for humanity is feeding its growing population while minimizing ecosystem damage and climate change. Here, we uncover the global benefits arising from introduction of one wild species accession to peanut-breeding programs decades ago. This work emphasizes importance biodiversity crop improvement: peanut cultivars with genetics this provided improved food security reduced use fungicide sprays. However, study also highlights perilous consequences changes in legal...
This study leverages multivariate analysis, including principal component analysis (PCA) and cluster to select peanut genotypes with resistance thrips desirable agronomic traits. The focus is on progenies derived from the cross between cultivar IAC 503 4x an interspecific synthetic amphidiploid ( A. magna x cardenasii ) 4x. Analyzing F4 generation using Federer’s augmented block scheme intercalary checks, evaluates based natural infestation damage symptoms, alongside traits indicating...
Fungal foliar diseases can severely affect the productivity of peanut crop worldwide. Late leaf spot is most frequent disease and a major problem in Brazil many other tropical countries. Only partial resistance to fungal has been found cultivated peanut, but high resistances have described on secondary gene pool.
Peanut, Arachis hypogaea L., is a protein-rich species consumed worldwide. A key improvement to peanut culture involves the development of cultivars that resist fungal diseases such as rust, leaf spot and scab. Over three years, we evaluated resistance under field conditions 43 wild accessions interspecific hybrids genus Arachis, well six A. genotypes. In first year, early late spot, rust second third 18 with best scores control cultivar IAC Caiapó for rust. All displayed greater than but...
The aim of this study was to gather data on the incidence fungi associated with peanut seeds stored in their pods, before being processed by State São Paulo seed-producing companies, and relation seed damage caused insects quality seeds. Samples were taken from lots cultivars IAC 886 503 these companies at beginning end a six-month storage period. shelled half each sample treated fludioxonil + metalaxyl. Untreated analyzed for moisture content, germination, vigor health. following found...
Abstract Late leaf spot (LLS) disease caused by Nothopassalora personata (Berk. & M.A. Curtis) U. Braun, C. Nakash, Videira Crous is prevalent among pathogens encountered in peanut ( Arachis hypogaea L.) growing regions. Chemical control expensive, sometimes inaccessible, and can be difficult to apply. One effective solution this the deployment of resistant cultivars. IAC 322 a breeding line foliar fungal harbors alien introgressions from A. cardenasii Krapov. W.C. Gregory, wild diploid...
IAC OL 5 is a new peanut cultivar recommended to growers of regions the state São Paulo as another option for planting during intervals sugarcane renewal. Its main traits are its runner growing habit, moderate resistance virus and foliar diseases, high oleic trait.
Because of damages caused, general occurrence in crops, and high population levels, the most important peanut pest Brazil is thrips Enneothrips flavens Moulton (Thysanoptera: Thripidae). A field experiment was carried out during 2001/2002 growing season, Campinas Pindorama, State São Paulo, Brazil, to evaluate influence E. on yield six cultivars. Treatments comprised three cultivars upright type runner type, with without chemical control insect. Thrips infestation evaluated by insect...
Com os objetivos de avaliar a qualidade fisiológica e sanitária sementes amendoim armazenadas no estado São Paulo, identificar principais insetos fungos que ocorrem nessas condições as possíveis injúrias causadas possam prejudicar dessas sementes, amostragens lotes das cultivares IAC 886 503, produzidas nas safras 2010/11 2011/12, foram realizadas em quatro épocas: antes do armazenamento, beneficiamento, após o beneficiamento tratamento químico. As analisadas quanto ao teor água, germinação,...
IAC OL 3 and 4 peanut cultivars are new releases of Instituto Agronômico (IAC), Campinas, SP. These were developed to attend the demand Brazilian business for high oleic runner cultivars, whose cycle can be better adjusted areas sugarcane renewal than other cultivars.
Thrips (Enneothrips flavens) is a pest that causes severe damage and yield losses to peanut crop if not properly controlled. The main control method currently used by farmers bi-weekly application of insecticides during development, which, in addition its toxicity, very costly. Thus, new sources resistance must be identified order reduce the use effectively manage pest. This study aimed evaluate occurrence symptoms E. flavens infestations 12 accessions 10 wild species Arachis nine...
The interaction between genotypes and environment (GxE) can influence the selection process recommendation of peanut cultivars. objective this study was therefore to evaluate GxE pod yield using AMMI. 18 lines cultivars IAC Caiapo Runner 886 assessed in 10 field trials state Sao Paulo. Significant effects genotypes, environments interactions were detected analysis. first AMMI principal component (IPCA1) explained 42.3% sum squares interaction. Sixteen twenty lines/cultivars under evaluation...
The primary gene pool of the cultivated peanut (Arachis hypogaea L., allotetraploid AABB) is very narrow for some important characteristics, such as resistance to pests and diseases.However, Arachis wild diploid species, particularly those from section Arachis, still have these characteristics.To improve crops, genes species can be introgressed by backcrossing hybrids with A. hypogaea.When whose genomes are similar crossed, sterile result.Artificially doubling number chromosomes results in...
O comportamento produtivo de genótipos amendoim (Arachis hypogaea L.) foi avaliado a partir três diferentes métodos adaptabilidade e estabilidade. Foram avaliadas 18 linhagens as cultivares Runner IAC 886 Caiapó, quanto à produtividade vagens (PV) peso 100 grãos (P100G), em dez ensaios campo, no Estado São Paulo, utilizando-se os ecovalência, Eberhart & Russel Lin Binns. observadas diferenças significativas para o efeito genótipo (G), ambiente (E) interação (GxE), duas variáveis. As...
Com o objetivo de avaliar a influência do ataque Enneothrips flavens Moulton (Thysanoptera: Thripidae), no desenvolvimento cultivares amendoim, foi implantado um experimento em campo, ano agrícola 2001/2002, nas localidades paulistas Campinas e Pindorama. Avaliaram-se IAC-Tatu-ST, IAC 5 22, porte ereto Runner 886, Tégua IAC-Caiapó, rasteiro, com sem controle químico da praga. O delineamento adotado blocos ao acaso, parcelas subdivididas, seis repetições, onde as corresponderam aos...
Este trabalho teve por objetivo identificar cultivares de amendoim com resistência a Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), determinando os graus meio da análise univariada e multivariada. Utilizaram-se hábitos crescimento ereto (IAC 5, IAC 8112, 22 Tatu ST) rasteiro 503, 505, 147, 125, Caiapó Runner 886), semeadas em campo. Lagartas primeiro ínstar foram individualizadas placas Petri forradas papel filtro umedecido mantidas sob condições controladas temperatura (25 ±...
O objetivo deste trabalho foi avaliar o desempenho produtivo, a estabilidade da produção e adaptabilidade de três cultivares amendoim em diversos ambientes típicos cultivo severidade das doenças foliares que podem ocorrer no Estado São Paulo. Foram avaliadas as Tatu, Florunner IAC-Caiapó sob níveis controle foliares, experimentos onde predominantes foram mancha-preta (Cercosporidium personatum) ferrugem (Puccinia arachidis). Os utilizaram delineamento parcelas subdivididas com quatro...
Abstract Three crosses and their reciprocals between peanut (Arachis hypogaea L.) genotypes differing in pod seed sizes were made to investigate relationships the pericarp (shell) seed. Length, width, weight of fruit from F1 generation selfed parentals compared. The F2 along with plants parental lines grown field. weight, volume dried fruits seeds, as well shell thickness, obtained samples 30 visually mature pods each plant. Density internal color, shelling percentage also recorded. seeds...
Com o objetivo de verificar a flutuação populacional tripes em cultivares amendoim, foram desenvolvidos ensaios com os IAC-Poitara, IAC-Oirã, IAC-Tupã, IAC-Caiapó, IAC-Jumbo, Botutatu e Tatu, na Estação Experimental Campinas (Instituto Biológico), nas safras 1992/93 1993/94. Na 1992/93, realizados onze levantamentos 1993/94, oito. A amostragem constituiu coleta dez folhas (40 folíolos) fechadas, por parcela, para contagem ninfas adultos. safra IAC-Caiapó IAC-Jumbo apresentaram as menores...