Results 51 to 60 of about 1,109 (184)

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

Leaf appearance rate and phyllochron on millet sowing dates

open access: yesREVISTA BRASILEIRA DE MILHO E SORGO, 2023
The objective of this study was to determine the leaf appearance rate and phyllochron as affected by millet sowing dates. The experiment was conducted with six sowing dates (11/28/2019, 12/03/2019, 12/10/2019, 12/17/2019, 12/30/2019 and 01/14/2020). The sowing was performed in plots with six rows of 2 m length and spacing of 0.25 m between rows.
Felipe Manfio Somavilla   +5 more
openaire   +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

Phyllochron and winter barley leaf growth rate

open access: yesBiologia Plantarum, 1990
Growth rate of leaves of winter barley (Hordeum vulgare L. cv. Efra) plant in thermal time correlated with the final length of the corresponding leaf (r = 0.66). The sum of effective temperatures corresponding to the time of growth of a particular leaf linearly increased with leaf insertion (r = 0.82).
Jana Tesarová, L. Nátr
openaire   +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

BASE GROWTH TEMPERATURE AND PHYLLOCHRON FOR KIKUYU GRASS (Cenchrus clandestinus; Poaceae)

open access: yesActa Biológica Colombiana, 2021
In order to estimate the base temperature (Bt) of growth through the appearance of leaves and calculate the phyllochron for kikuyu grass, three plots were established on three farms in the Provincia of Ubaté (Cundinamarca, Colombia) located at different altitudes (2560, 2640, 3143 m. a. s. l.). Measurements were made in four cycles in a period of eight
Ruth Amanda Acero Camelo   +4 more
openaire   +4 more sources

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