Plant Genetic Variability
Mostrando 1-12 de 192 artigos, teses e dissertações.
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1. Morpho-agronomic characterization and genetic divergence among pepper accessions
ABSTRACT The germplasm characterization and the analysis of genetic divergence are fundamental requirements to determine the genetic diversity available and peppers have considerable variability not most explored and quantified. Thus, the aim of this study was to characterize morphological and agronomically pepper accessions and their genetic divergence. The
Revista Ceres. Publicado em: 2022
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2. Correlation and selection gains in F6 wheat genotypes
ABSTRACT The agronomic traits have complex quantitative inheritance, wheat breeding has a highly cost and time expending to achieve advanced lines, and new cultivars. The objective of this work was to estimate the phenotypic (rp), genotypic (rg) and environmental (re) correlation coefficients and the genetic parameters, as well as to estimate the selection g
Revista Ceres. Publicado em: 2022
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3. Short-term mine scheduling targeting stationary grades
Abstract In short-term mine planning, mining scheduling is generally defined by designing dig-lines, allocated on benches. The mined ore will be sent to stockpiles, homogenization piles, or a concentration plant. The process to design dig-lines is usually done manually, whereby multiple simultaneous mining fronts are time-consuming and labour-intensive. The
REM - International Engineering Journal. Publicado em: 2022
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4. Genetic parameters estimation in common bean under weed plant competition
ABSTRACT The present study aimed to estimate genetic parameters of 20 common bean genotypes, commercial and regional bean on weed interference. The agronomic characters analyzed were: average stem diameter (ASD); average plant length (APL); number of pods per pot (NPP); number of locules per pod (NLP); number of grains per pod (NGP); percentage of empty locu
Rev. Ceres. Publicado em: 2021-08
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5. Selection of Jatropha genotypes for bioenergy purpose: an approach with multitrait, multiharvest and effective population size
ABSTRACT Jatropha curcas L. is a perennial plant with great potential for biodiesel production. Thus, the aim of this study was to select J. curcas genotypes for bioenergy purpose considering multitrait, multiharvest and effective population size. To this end, a data set with 70 J. curcas families, obtained through controlled crosses, evaluated in a randomiz
Bragantia. Publicado em: 2020-09
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6. PhenoRoots: an inexpensive non-invasive phenotyping system to assess the variability of the root system architecture
ABSTRACT: The root system architecture (RSA) of plants and its functioning play a fundamental role in a number of plant growth mechanisms including water and nutrient uptake. Optimization of the RSA is important for stable and increased plant productivity under adverse conditions. Despite its great importance, studying the RSA is notoriously laborious becaus
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/12/2019
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7. Paclobutrazol application in potted ornamental pepper
RESUMO Dentro da variabilidade genética no gênero Capsicum há plantas com grande potencial ornamental, mas com altura desconforme da exigida pelo mercado. A aplicação de paclobutrazol (PBZ), retardante de crescimento e inibidor das giberelinas, é uma alternativa para reduzir a altura das plantas. O objetivo foi avaliar o efeito de diferentes concentra�
Hortic. Bras.. Publicado em: 09/12/2019
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8. Morphological characterization and selection of castor bean accessions for mechanized production1
RESUMO A mamoneira (Ricinus communis L.) é uma oleaginosa encontrada em várias regiões do mundo, devido à sua fácil propagação e adaptação. O cultivo de genótipos mais produtivos, resistentes a doenças e que permitem o uso de mecanização traz maior retorno econômico para os produtores. Objetivou-se realizar a caracterização morfológica e sel
Pesqui. Agropecu. Trop.. Publicado em: 25/11/2019
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9. Genetic divergence among eggplant genotypes under high temperatures
RESUMO O objetivo deste trabalho foi estimar a divergência genética entre genótipos de berinjela para caracteres agronômicos, visando gerar informações para a escolha de genótipos em programas de melhoramento genético para tolerância a altas temperaturas. Foram analisados dez caracteres recomendados pelo International Board for Plant Genetic Resourc
Hortic. Bras.. Publicado em: 07/11/2019
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10. Evaluation of production and quality traits in interspecific hybrids of ornamental pepper
RESUMO O cultivo de pimentas em vaso como planta ornamental tem aumentado consideravelmente em todo o planeta. No Brasil, esse cultivo é mais recente e ainda carece de cultivares. Para ampliar a variabilidade disponível e obter novas cultivares, a hibridação interespecífica é muito útil como forma de inserir um atributo desejável que ocorre em uma es
Hortic. Bras.. Publicado em: 07/11/2019
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11. Genetic variability revealed by microsatellite markers in a germplasm collection of Jatropha curcas L. in Brazil: an important plant for biofuels
Abstract We evaluated the genetic variability of a collection of Jatropha curcas germplasm, represented by 93 accessions, using microsatellite markers. Among the 60 markers tested, five of them detected polymorphisms, with a total of 11 alleles and mean of 2.2 alleles per loci. These five markers enabled the quantification of genetic variability through esti
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019
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12. Pure line selection in a heterogeneous soybean cultivar
Abstract Although cultivars of autogamous plants are homogeneous genotypes, they may show natural variability due to mechanical mixing, natural hybridization, and mutation. The aim of the present study was to estimate genetic and phenotypic parameters and to identify and select superior genotypes that associate good performance in traits of interest from a h
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019