A5041230004- Potato Plant Research
- Plant Pathogens and Resistance
- Plant Disease Resistance and Genetics
- Plant Virus Research Studies
- Growth and nutrition in plants
- Banana Cultivation and Research
- Genetics and Plant Breeding
- Plant tissue culture and regeneration
- Pineapple and bromelain studies
- Plant Pathogenic Bacteria Studies
- Plant Disease Management Techniques
- Nematode management and characterization studies
- Agriculture, Plant Science, Crop Management
- Ginkgo biloba and Cashew Applications
- Soil Geostatistics and Mapping
- Wheat and Barley Genetics and Pathology
- Advances in Cucurbitaceae Research
- Enzyme Production and Characterization
- Plant pathogens and resistance mechanisms
- Heavy Metals in Plants
- Microbial Metabolites in Food Biotechnology
- Soil Management and Crop Yield
- Nuts composition and effects
- Fungal Plant Pathogen Control
- Global Trade and Competitiveness
Universidade Federal de Lavras
2010-2021
Universidade Federal de Viçosa
2009
Biolog (United States)
1993
Practically all potato cultivars grown in Brazil are native to Europe and not fully adapted the tropical conditions. The purpose of this study was estimate genetic gains three cycles recurrent selection for heat tolerance potato. base population consisted five Brazilian heat-tolerant clones. In winter 2006 rainy growing season 2007 103 clones were evaluated (eight population, 29 first cycle, 32 30 second third respectively, four control cultivars). tuber traits both seasons 37.8 % (yield),...
Abstract The aim of this study was to evaluate the efficiency selection potato families in early generations for heat tolerance. Thirty were evaluated seedling generation (SG), first clonal (FCG) field and greenhouse under high temperature conditions, second (SCG) mild temperatures. mean obtained each generation. 16 most productive FCG selected, clones these experiments winter rainy crop seasons. results showed that family tuber shape may be applied as SG. It also observed SCG yield specific...
Abstract A crucial point in agricultural experimentation is to compare treatments with high accuracy. However, prone field heterogeneity, and a common source of error the spatial variation between plots used an experiment. With plant breeding experiments, number tested genotypes requires breeders use large areas, which invariably increases likelihood variation. The models that do not address this can lead errors selecting best genotypes. Our goal was evaluate effects two models—first‐order...
Clonal selection is the preferred breeding method used in potatoes (Solanum tuberosum L.). However this procedure only efficient for more advanced generations and shows no good results when applied seedling up to second clonal generation. This study assessed feasibility of early full-sib potato families compares among within with combined under different intensities. Six experiments were conducted from first (C1) until third generation (C3). In C1 a randomized complete block design four...
This study was carried out to identify potato cultivars with high combining abilities for heat tolerance and get information about the individual performance of clones originated from crosses between heattolerant heat-sensitive parents. Twenty six clonal families more than 600 were assessed in warm cool seasons Brazil. High temperatures decreased tuber number weight , resulting 46% reduction yield. Furthermore, there an eight-fold increase physiological disorders a remarkable specific...
Most potato cultivars available to growers in Brazil come from temperate countries and present growing cycles around 100 days planting. The objectives of this study were establish the relationship between duration growth cycle yield potential genotypes southern Minas Gerais State, Brazil. This evaluated tuberization process, dry matter partitioning at different plant development stages, estimated genetic parameters for these traits. One hundred twenty-one two experiments which harvested 80...
Os objetivos do trabalho foram avaliar os processos de crescimento, tuberização e partição matéria seca em tubérculos clones batata precoces tardios ao longo ciclo vegetativo. Avaliou-se, ainda, a viabilidade uso desses caracteres morfofisiológicos para seleção mais adaptados às condições tropicais. O foi desenvolvido Lavras (MG), na safra das águas (agosto dezembro 2005). produtivos que precoces, devido crescimento vigoroso, à maior longevidade da área foliar fotossinteticamente ativa, taxa...
The development of cultivars adapted to high tropical temperatures is the chief objective potato improvement in tropics. To achieve this goal, it necessary select for more stable genotypes many environments. research was analyze 51 clones stability regarding tuber yield, percentage large tubers and specific gravity at different sites, years planting seasons southern Minas Gerais state, Brazil. Clones with sound all traits were selected. Greater efforts should be invested specifically into...
O objetivo do presente trabalho foi selecionar clones de batata com elevado desempenho agronômico e resistência à pinta preta aos vírus X Y. Para tanto, foram realizados 57 cruzamentos entre portadores dos alelos Ry adg Rx1, a cultivar 'Chiquita', resistente (Alternaria solani). Na safra das águas 2004, famílias clonais avaliadas em campo 331 selecionados considerando aparência tubérculos. Desse total clones, avaliados mais dois experimentos no verão 2005, 180 por meio marcador SCAR RYSC3...
Families selection has not been recommended as a method for vegetative propagated species. To verify its utility potato improvement series of experiments were carried out under warm temperatures (rainy season). Thirty clonal families originated from heat tolerant parents evaluated tuber yield and specific gravity. After obtaining the seedling generation (SG) first (FCG) individual clones further two generations assessed. Simulations conducted with different intensities family in SG FCG...
Clonal families from a broad genetic base population in the Potato Breeding Program at Universidade Federal de Lavras (UFLA), Brazil, were used this trials. Twenty-five assessed 5 x triple lattice design. Each plot consisted of 30 clones distributed three rows ten plants. Tuber yield per plant, percentage large tubers, mean weight medium-sized tuber and specific gravity measured. Three hundred experiments simulated varying family sizes to 90 clones. The coefficients experimental variation...
Abstract Potato ( Solanum tuberosum L.) is one of the most important crops for human consumption worldwide, representing an essential component food security several countries. However, yield and quality are negatively affected by biotic abiotic stresses. In this sense, selection potato cultivars tolerant to heat resistant diseases great importance. Our goal was select clones suitable chips industry, having tolerance bearing R x 1 Ry adg alleles, which confer resistance virus X Y . We...
Os objetivos deste trabalho foram obter informações dos componentes de médias populações cajueiro (Anacardium occidentale L.), por meio análise dialélica parcial, e verificar o potencial per se dois grupos distintos parentais: um, constituído clones comerciais cajueiro-anão-precoce (CCP06, CCP76, CCP09 CCP1001), outro, matrizes comum (CP07, CP12, CP77, CP96 BTON), a heterose em suas respectivas combinações híbridas. Utilizou-se delineamento experimental blocos casualizados, com quatro...
A seleção precoce de clones que possuam níveis elevados matéria seca e baixos teores açúcares redutores é uma necessidade nos programas melhoramento para a qualidade processamento da batata (Solanum tuberosum L.) na forma palitos fritos ou chips. tornou-se possível com utilização marcadores genéticos, visto permitem identificação precisa indivíduos superiores. Assim, procura-se cada vez mais encontrar capazes caracterizar tais utilizá-los via assistida. O objetivo deste trabalho foi avaliar...
The selection of potato clones for yield is usually effective from the second clonal generation. It would however be ideal to select seedling generation (SG) or first (FCG). aim this study was evaluate repeatability at family level performed in early generations with subsequent generations, tuber and specific gravity warm season. Thirty families were evaluated SG, FCG second, third fourth generation, without any selection. In way, adjusted means 30 obtained each Selections simulated...
The Ry adg allele is widely used by breeders to confer extreme resistance all strains of PVY. However, the necrotic strain has increased recombination resulting in recent considerable losses productivity. Thus far, not recombinant PVY have been tested for their reaction gene. objective this study was identify potato clones carrying resistant and assess following strains: NTN (PVY NTN), Wilga N-Wi), "curly top" E). Advanced from breeding program at Universidade Federal de Lavras were...
ABSTRACT: The aim of the present study was to evaluate effect colchicine and oryzalin anti-mitotic substances on induction tetraploid plants foliar anatomy two diploids clones Solanum commersonii ssp. Nodal segments subsp. Dun. malmeanum Bitt. were treated with (3.5, 5.0, 6.5mM; 72h) or (10, 30, 50µM; 24h). After treatment substances, nodal inoculated in MS culture medium cultivated vitro (60 days). cultivation, transferred vases substrate Plantmax(r) kept greenhouse (45 Plant ploidy level...
A seleção precoce em batata tem sido avaliada há várias décadas, tendo vista a importância discriminar e selecionar clones promissores já nas primeiras gerações. Na tentativa de contornar baixa eficiência da individuais para caracteres herdabilidade, esforços estão sendo despendidos na avaliação do progresso genético com utilização famílias Conduziu-se este trabalho, os objetivos mensurar interação entre ambientes avaliar o precoce. Foram avaliadas 22 duas testemunhas três locais, Minas...