A5079580614- Research in Cotton Cultivation
- Growth and nutrition in plants
- Soil Management and Crop Yield
- Coffee research and impacts
- Potato Plant Research
- Plant responses to water stress
- Plant Pathogens and Resistance
- Rice Cultivation and Yield Improvement
- Crop Yield and Soil Fertility
- Peanut Plant Research Studies
- Seed Germination and Physiology
- Environmental and biological studies
- Plant Disease Resistance and Genetics
- Plant nutrient uptake and metabolism
- Insect and Pesticide Research
- Banana Cultivation and Research
- Soybean genetics and cultivation
- Leaf Properties and Growth Measurement
- Agricultural and Food Sciences
- Cassava research and cyanide
- Plant Disease Management Techniques
- Plant Pathogenic Bacteria Studies
- Plant pathogens and resistance mechanisms
- Genetic and phenotypic traits in livestock
- Genetics and Plant Breeding
Brazilian Agricultural Research Corporation
2013-2023
Weatherford College
2023
Agricultural Research Corporation
2014
Universidade Federal de Santa Maria
2004-2005
Drought is by far the most important environmental factor contributing to yield losses in crops, including soybeans [Glycine max (L.) Merr.]. To address this problem, a gene that encodes an osmotin-like protein isolated from Solanum nigrum var. americanum (SnOLP) driven UBQ3 promoter Arabidopsis thaliana was transferred into soybean genome particle bombardment. Two independently transformed lines expressing SnOLP were produced. Segregation analyses indicated single-locus insertions for both...
Analytical techniques used to extract chlorophyll from plant leaves are destructive and based on the use of organic solvents. This study proposes a non-destructive quantification photosynthetic pigment concentration in cotton using two portable meters, SPAD-502 CLOROFILOG 1030. After obtaining 200 leaf discs, each with an area 113 mm2, greening rate disc was determined by average five readings both meters. Immediately after measurement, 5 mL dimethyl sulfoxide (DMSO) added, samples were kept...
The root system architecture (RSA) of plants and its functioning play a fundamental role in number plant growth mechanisms including water nutrient uptake. Optimization the RSA is important for stable increased productivity under adverse conditions. Despite great importance, studying notoriously laborious because difficulty accessing rooting plants. We developed phenotyping platform, PhenoRoots, which allows non-invasive study RSA. was built using inexpensive material designed to provide...
Pasture is the main food source for more than 200 million cattle heads in Brazil. Although Brazilian forage breeding programs have successfully released well-adapted, high-yielding cultivars over years, use of genomic tools these currently limited. These are required to tackle challenges tropical In this context, notes lists research priorities raised at workshop "Breeding Forages Genomic Era", which necessary accelerate next-generation forages and allow breeders increase genetic gains....
The present study describes the main characteristics of proteolytic activities velvetbean caterpillar, Anticarsia gemmatalis Hübner, and their sensitivity to proteinase inhibitors activators. Midguts last instar larvae reared on an artificial diet were homogenized in 0.15 M NaCl centrifuged at 14,000 g for 10 min 4ºC supernatants used enzymatic assays 30ºC, pH 10.0. Basal total activity (azocasein hydrolysis) was 1.14 ± absorbance variation min-1 mg protein-1, 420 nm; basal trypsin-like...
Biotic and abiotic stresses can alter the hormone balance trigger activation of pathways involved in cotton stress responses, resulting abscission squares, flowers young bolls consequent reductions seed yield fiber yield. As part mechanism that primarily regulates protective response plants against stresses, ethylene is considered a key this response, increased synthesis has been observed when are subjected to stress. Thus, development strategies aimed mitigate their negative effects reduce...
RESUMO O cultivo de algodoeiro adensado em segunda safra, ambiente não irrigado, após soja ou feijão, tem aumentado no Cerrado do Centro-Oeste brasileiro. Com essa mudança época semeadura, as plantas algodão estão mais expostas a condições climáticas adversas. Objetivou-se avaliar o efeito cultivares, densidades e épocas semeadura sobre produção algodão. Os experimentos foram realizados três anos consecutivos. Em cada ano, os tratamentos constituídos por duas (segunda quinzena janeiro...
Due to the current scarcity of water, which may be aggravated by climate changes, it is important develop cultivars tolerant water stress. For this, information regarding variability tolerance this stress required. This can obtained using phenotyping platforms, allow a large-scale and automated assessment crop traits related productivity under study took place in greenhouse used platform evaluate some agronomic physiological two cotton with differing tolerances The experiment was performed...
A broca-das-cucurbitáceas (Diaphania nitidalis) é uma praga de grande importância em diversas culturas, principalmente do pepineiro. Esta espécie pode apresentar preferência relação a determinadas cultivares quanto à sua alimentação e até mesmo oviposição. Nesse sentido, o presente estudo objetivou avaliar ocorrência desta frutos seis pepineiro, ambiente protegido. As Patton, Victoria, Premier, Vlaspik Napoleon apresentaram, respectivamente, 50%, 43,75%, 37,50%, 34,37% 25,87% dos brocados....
Mepiquat chloride (MC) is widely used for controlling cotton plant growth. Shoot growth modifications may affect root and, consequently, interfere with the sensitivity to water deficit. This study aimed at evaluating deficit effects, in initial phenological stages of plants from seeds treated MC doses, on shoot and Two experiments were carried out a greenhouse, Santa Helena de Goiás, Goiás State, Brazil, randomized blocks design, 4x4 factorial scheme: four regulator doses (0 g, 2 4 g 8...
Although the ethylene inhibitors role on reduction rate of boll abscission in cotton plants submitted to drought is being recently reported, its effects photosynthesis performance and dry matter across sympodial branch scarce. Thus, objective this study was evaluate reproductive branches via positional mapping sprayed with water deficit. 1-methylcyclopropene (1-MCP), an inhibitor action aminoethoxyvinylglycine (AVG), synthesis, were alone association. Treatments composed by (T1) control,...
Temperature thresholds during the rice (Oryza sativa L.) cycle development have been reported to affect plant metabolism.Therefore, this study aimed evaluate effects of above-optimal temperature on photosynthetic and morphometric parameters in two contrasting irrigated genotypes (BRS Querência-sensitive Nagina 22 (N22)-tolerant).Plants both were grown rhizotrons always maintained under conditions: Out-under environmental conditions, In-rhizotrons inside a plastic structure, which increased...
Diversos aspectos referentes à espécie-praga quarentenária Xiphinema americanum, incluindo características taxonômicas, distribuição geográfica, plantas hospedeiras, bioecológicos, potencial de transmissão viroses e medidas controle, entre outros, foram abordados nesta revisão. A dificuldade encontrada pelos especialistas na correta identificação deste nematóide quarentenário muitas vezes determina que X. americanum seja confundido com outras espécies pertencentes ao mesmo gênero. Esta...
ABSTRACT ‘BRS F183’ (Potira) is a late-maturing and red skin potato cultivar, suitable for French fry processing, due to tuber high dry matter content of long oval shape, large size, light yellow flesh, color. It also the fresh market its attractive tubers intense color, smooth shallow eyes. In six trials, showed average yields that did not differ from ‘Asterix’. The marketable yield was relatively high, reaching 98.5% in tropical ecosystem. Larger than ‘Asterix’ were observed autumn crop...
The objective of this work is to evaluate the concentration cyanogenic glycosides CGs (amygdalin and prunasin) in cultivar rootstock, as an indicator compatibility pear grafts. consists two experiments. Experiment 1 evaluated Cascatense/Pyrus Calleryana Cascatense/EMC combinations. 2 combinations Packham’s Triumph/Adams, Santa Maria/Adams, Rocha/Adams. experimental design experiments was randomized blocks with four replications. evaluations were carried out spring summer harvest 2014/2015....