Crop Breeding
Mostrando 1-12 de 163 artigos, teses e dissertações.
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1. Genetic variability in Capsicum spp. accessions through multicategorical traits
ABSTRACT Capsicum peppers originate from the American continent. Their culinary and medicinal potential, first exploited by indigenous peoples over 7000 years ago is vast, however more studies are needed. Despite the existence of germplasm banks that house hundreds of accessions of the genus, only a little of this diversity is seen in large markets. In this
Revista Ceres. Publicado em: 2022
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2. Superiority index based on target traits reveals the evolution of Brazilian soybean cultivars over last half-century
ABSTRACT The objective of this work was to assess the breeding influences in different agronomic and physiological traits in Brazilian soybean cultivars, released between 1965 and 2011, to identify traits associated with modern cultivars. A total of 29 cultivars were evaluated in two locations in the 2016/17 crop season. Genotype selection based on agronomic
Rev. Ceres. Publicado em: 2021-08
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3. 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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4. Agronomic performance of seedless table grape genotypes under tropical semiarid conditions
ABSTRACT The São Francisco Valley is the main producing region of table grape in Brazil. The objective of this work was to evaluate the agronomic performance and physicochemical characteristics of 14 seedless table grape genotypes to select those with potential to be used in commercial crops in the São Francisco Valley, Brazil, or as parents in breeding pr
Bragantia. Publicado em: 2020-09
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5. Image phenotyping of lettuce germplasm with genetically diverse carotenoid levels
ABSTRACT Developing biofortified foods such as lettuce is a frequent goal of breeding programs. One obstacle to the success of these efforts is the high temporal and financial cost of determining leaf constituents. Image phenotyping has been increasingly used in crop breeding, but not in lettuce breeding. Until now, the use of image phenotyping to indirectly
Bragantia. Publicado em: 2020-06
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6. Silverleaf whitefly-resistant common beans: an investigation of antibiosis and/or antixenosis
ABSTRACT The silverleaf whitefly Bemisia tabaci biotype B is one of the most important sucking pests of common bean, which causes severe damages and requires frequently synthetic insecticides spraying to protect crop productivity. The use of common bean cultivars resistant to whitefly attack is an important strategy within an integrated pest management (IPM)
Bragantia. Publicado em: 2020-03
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7. BRS 400 and BRS 401, sweet cassava cultivars with pink roots developed by participatory breeding
Abstract Two sweet cassava cultivars with pink pulp, BRS 400 and BRS 401, are validated through participatory tests conducted at Distrito Federal, Brazil. Their high root yield stability and their high level of acceptance among producers certainly qualify them as a new crop option for cultivation in the region.
Crop Breed. Appl. Biotechnol.. Publicado em: 05/12/2019
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8. Number of carpels in the pollination efficiency of sour passion fruit
Resumo As flores do maracujazeiro-azedo normalmente apresentam três carpelos, porém há indivíduos com maior quantidade de carpelos em suas estruturas reprodutivas e pouco se sabe da influência dessa característica na cultura. Plantas de maracujazeiro-azedo (Passiflora edulis Sims, cultivar BRS Sol do Cerrado), que apresentam flores com três, quatro e
Rev. Bras. Frutic.. Publicado em: 05/12/2019
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9. Multiple resistance to bacterial halo blight and bacterial leaf spot in Coffea spp.*
RESUMO O melhoramento de plantas para resistência genética é um método importante para o manejo de doenças, pelos inúmeros benefícios e baixo custo de implementação. No presente estudo, progênies de 11 espécies de Coffea e 16 acessos selvagens de C. arabica foram testados quanto à resposta a Pseudomonas syringae pv. garcae, agente causal da manch
Arq. Inst. Biol.. Publicado em: 25/11/2019
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10. In vitro germination to overcome dormancy in seeds of ‘Red Globe’, ‘Italia’ and ‘Niagara Rosada’ grapes
Resumo A dormência em sementes de videira dificulta o avanço de muitos programas de melhoramento genético da cultura, ocasionando desuniformidade e baixa porcentagem de germinação. Os métodos convencionais utilizados para superar a dormência são demorados. Assim, a germinação in vitro das sementes torna-se uma alternativa promissora para garantir
Rev. Bras. Frutic.. Publicado em: 14/11/2019
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11. Direct selection for phenotypic traits in carrot genotypes
RESUMO A seleção de genótipos de cenoura mais produtivos é fundamental para os programas de melhoramento dessa cultura visando aumento na produção com redução dos custos. Assim, objetivou-se com esse trabalho avaliar o ganho com a seleção direta e medir seus efeitos em outras características agronômicas de interesse em cenoura. Para isso, 36 gen�
Hortic. Bras.. Publicado em: 07/11/2019
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12. Changes in leaf appearance and developmental phases associated with breeding progress in six-rowed barley in the Pannonian Plain
Abstract The aim of this study was to analyze traits of leaf appearance and phenological development related to grain yield gain in winter barley cultivars released over the past 50 years. Field trials with 15 six-rowed winter barley cultivars were conducted during two growing seasons. The main leaf appearance and developmental traits were studied. The durat
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019