Results 41 to 50 of about 2,300 (204)

Morphological and physiological performance of PSB Rc18 lowland rice (Oryza sativa L.) grown at different water, spacing and nutrient management

open access: yesAnnals of Tropical Research, 2019
Rice yield fluctuates because of environmental influences on morphological and physiological processes, as well as inadequate human intervention, to stabilize crop productivity. A field experiment was conducted in two cropping seasons at the experimental
Ruth O. Escasinas, Oscar B. Zamora
doaj   +1 more source

Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2017
: The objective of this work was to estimate cardinal temperatures and phyllochron for the leaf development of the eucalyptus species Corymbia citriodora and Eucalyptus urophylla, in the seedling phase.
Cleverson Henrique de Freitas   +2 more
doaj   +1 more source

Nitrogen nutrition index and morphogenesis in Alexandergrass of the Central Depression of Rio Grande do Sul

open access: yesCiência Rural, 2023
: This study assessed the nitrogen nutrition index, morphogenic characteristics and tiller structure of Alexandergrass (Urochloaplantaginea (LINK) Hitch) pasture submitted to different nitrogen (N) levels (zero, 150 or 300 kg ha-1 of N). The experimental
Paulo Roberto Salvador   +7 more
doaj   +1 more source

Morphogenesis and structure of Tifton 85 cultivated in subtropical climate and fertilized with nitrogen

open access: yesActa Scientiarum: Animal Sciences, 2016
The experiment evaluated the morphogenesis and structure of Tifton 85 (Cynodon spp.) cultivated in subtropical climate and fertilized with nitrogen (N).
Diego Daniel Tiecher   +5 more
doaj   +1 more source

Water Stress Permanently Alters Shoot Architecture in Common Bean Plants

open access: yesAgronomy, 2019
The effects of water stress on crop yield through modifications of plant architecture are vital to crop performance such as common bean plants. To assess the extent of this effect, an outdoor experiment was conducted in which common bean plants received ...
Angelica Durigon   +3 more
doaj   +1 more source

Thermal Requirements and Photoperiod Influence in the Leaf Development of Two Forest Species

open access: yesFloresta e Ambiente
The aim of this work was to evaluate the effect of thermal time methods and to identify the phyllochron and photoperiod response in seedlings of two forest species: Corymbia citriodora and Eucalyptus urophylla.
Cleverson Henrique de Freitas   +1 more
doaj   +1 more source

Estimativa do filocrono em milho para híbridos com diferentes ciclos de desenvolvimento vegetativo Estimating the phyllocron in maize hybrids with different cycles of vegetative development

open access: yesCiência Rural, 2012
O filocrono é definido como o tempo térmico necessário para o aparecimento de folhas sucessivas na haste principal de uma planta. Através do filocrono, pode-se calcular a duração do período vegetativo e, portanto, a época de florescimento em função da ...
Juliano Dalcin Martins   +5 more
doaj   +1 more source

FSPM-P: towards a general functional-structural plant model for robust and comprehensive model development [PDF]

open access: yes, 2016
In the last decade, functional-structural plant modelling (FSPM) has become a more widely accepted paradigm in crop and tree production, as 3D models for the most important crops have been proposed.
G. Buck-Sorlin, M. Henke, W. Kurth
core   +3 more sources

Biomass turnover in brachiaria cultivars in a tropical environment

open access: yesBioscience Journal, 2017
The experiment was conducted to evaluate the morphogenetic traits of three Brachiaria cultivars (common, Llanero and Tupi) subjected to continuous grazing with variable stocking rate in the four seasons of the year.
Cláudia de Paula Rezende   +7 more
doaj   +3 more sources

Métodos de soma térmica e datas de semeadura na determinação de filocrono de cultivares de trigo Thermal time methods and sowing dates in phyllochron determination in wheat cultivars

open access: yesPesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi avaliar o efeito dos métodos de cálculo de graus-dia e de datas de semeadura na determinação do filocrono de cultivares de trigo (Triticum aestivum).
Hamilton Telles Rosa   +3 more
doaj   +1 more source

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