Spikelets
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. 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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2. Performance of wheat varieties grown from seeds with different vigor levels
ABSTRACT The objective of this study was to evaluate the performance of wheat plant grown from seeds with different vigor levels. The experimental design was randomized blocks in a 3 x 3 factorial design (cultivar x vigor level) with four replications. The wheat cultivars were Tbio Toruk, Tbio Mestre and Tbio Iguaçu. The classification of vigor levels was
Revista Ceres. Publicado em: 2022
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3. Seed germination and dormancy break in Eragrostis polytricha, a native Brazilian grass species with potential for recovery of degraded lands
ABSTRACT Ferruginous Rocky Outcrops have high levels of species richness and endemism, but have been threatened by several anthropic actions, especially mining. Eragrostis polytricha, a common grass species in the vegetation of these outcrops, has shown promising features for use in the recovery of mining areas. However, in order to fully understand the spec
Acta Bot. Bras.. Publicado em: 2020-09
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4. Nitrogen management alternatives using Azospirillum brasilense in wheat
Resumo: O objetivo deste trabalho foi avaliar alternativas de manejo do nitrogênio em trigo (Triticum aestivum), com uso da inoculação de Azospirillum brasilense nas sementes e nas folhas. Os tratamentos consistiram da inoculação ou não de A. brasiliense, via sementes ou folhas, associada a fertilizações de cobertura com 0, 70 e 140 kg ha-1 de nitrog
Pesq. agropec. bras.. Publicado em: 07/10/2019
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5. The use of X-ray to evaluate Brachiaria brizantha seeds quality during seed processing
RESUMO O teste de raios X permite a visualização das estruturas internas das sementes de modo não destrutivo e individualizado, possibilitando o diagnóstico de causas da baixa germinação e pureza de um lote. O objetivo do trabalho foi avaliar a qualidade das sementes de Brachiaria brizantha utilizando-se o teste de raios X e o efeito das etapas de bene
Rev. Ciênc. Agron.. Publicado em: 04/07/2019
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6. Interaction between thidiazuron and Azospirillum brasilense on yield characteristics and productivity of rice
RESUMO No arroz, o uso da bactéria Azospirillum brasilense tem se mostrado de grande utilidade para a cultura, podendo incrementar a produtividade final da mesma ou ainda, reduzir a necessidade de nitrogênio em cobertura. Recentemente notou-se que há outros reguladores que desempenham outras funções, como o thidiazuron (TDZ), uma substância de efeito c
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-04
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7. Common resistance to Fusarium head blight in Brazilian wheat cultivars
ABSTRACT: Mycotoxin levels in Fusarium head blight (FHB) infections can be difficult to quantify. The relationship between mycotoxin and disease is not consistent and it is not clear if wheatpathogen interaction is of significance in regions where more than one Fusarium species with distinct trichothecene production ability co-exists. This study aimed to inv
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-09
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8. Production and performance of sugarcane seeds (caryopses) from different hybridizations involving RB92579
Abstract A major challenge in sugarcane breeding program is the obtaining of enough number of seeds (caryopses) for the development of new improved cultivars. Genotypes differ in their function as pollen recipient and pollen donor, which also affect the seed performance. Thus, the aim of this study was to verify the production and performance of sugarcane se
An. Acad. Bras. Ciênc.. Publicado em: 19/07/2018
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9. Reproductive traits and floral visitors of Aechmea distichantha plants growing in different habitats of a South American xerophytic forest
Abstract Aechmea distichantha, a widely-distributed facultative epiphytic bromeliad species, is present from rainforests to xerophytic forests. At its southernmost distribution (Humid Chaco) it grows in the understory and forest edges. This animal-pollinated bromeliad shows high phenotypic plasticity on its vegetative traits, but there is no information abou
Rodriguésia. Publicado em: 2018-06
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10. Late nitrogen application enhances spikelet number in indica hybrid rice (Oryza sativa L.)
ABSTRACT To increase rice yield potential, field experiments were conducted in farmers’ paddies in 2011 and 2012 to evaluate the effects of different nitrogen applications on the yield and panicle components of three typical indica hybrid rice varieties in Sichuan Province. The number of grains per panicle resulting from late nitrogen application (LA) was
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-04
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11. Genetics and identification of markers linked to multiflorous spikelet in hexaploid oat
Abstract The formation of naked grains is directly associated with the formation of multiflorous spikelets in oats. The objectives of this study were to determine the genetics of multiflorous spikelet and to identify molecular markers linked to this character in hexaploid oat. Genetic analysis for multiflorous spikelet was performed in the F5 and F6 generati
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-03
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12. ÉPOCAS DE APLICAÇÃO DE REGULADOR DE CRESCIMENTO E DE SOMBREAMENTO ARTIFICIAL AFETANDO CULTIVARES DE TRIGO
The use of the growth regulator trinexapac-ethyl aims to reduce height of wheat plants avoiding lodging and losses caused by it. In addition, causes changes leaf architecture the plant have a better utilization of solar radiation. With the aim to evaluate the effects of application times of the growth regulator trinexapac-ethyl with or without artificial sha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/08/2012