Ciência Rural, 2007 O filocrono é definido como o tempo necessário para o aparecimento de folhas sucessivas em um colmo, no caso de espécies da família das Poáceas. Através do filocrono, pode-se calcular o número de folhas acumuladas, o que é uma excelente maneira de ...
Nereu Augusto Streck +9 more
doaj +1 more source
Revista Brasileira de Zootecnia, 2011 Desenvolveu-se este estudo com o objetivo de avaliar o acúmulo de forragem e as características morfogênicas e estruturais do capim-marandu submetido a combinações de alturas e intervalos de corte. O experimento foi realizado no período de agosto de 2003
Gelson dos Santos Difante +6 more
doaj +1 more source
Improving predictions of leaf appearance in field grown potato [PDF]
Scientia Agricola, 2007 The calculation of leaf appearance rate (LAR) and number of accumulated or emerged leaves (NL) on the main stem are part of many crop simulation models. The purpose of this study was to adapt and evaluate a model (WE model) for simulating the main stem LAR and NL in potato (Solanum tuberosum L.).
Streck, Nereu Augusto +4 more
openaire +3 more sources
Revista Brasileira de Zootecnia, 2012 The objective of this experiment was to evaluate the morphogenetic traits and biomass accumulation of Brachiaria brizantha cv. Xaraés subjected to doses of N (0, 125, 250, 375 and 500 kg.ha-1 N).
Welton Batista Cabral +5 more
doaj +1 more source
Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species [PDF]
Pesquisa Agropecuária Brasileira, 2019 : The objective of this work was to estimate the cardinal temperatures and to quantify the thermal requirements for the initial development of seedlings of the native tree species Citharexylum myrianthum and Bixa orellana.
Mábele de Cássia Ferreira +4 more
doaj +1 more source
Evolution of leaf-form in land plants linked to atmospheric CO2 decline in the Late Palaeozoic era [PDF]
, 2001 The widespread appearance of megaphyll leaves, with their branched veins and planate form, did not occur until the close of the Devonian period at about 360 Myr ago.
AH Knoll +32 more
core +1 more source
Plant Development and Leaf Area Production in Contrasting Cultivars of Maize Grown in a Cool Temperate Environment in the Field [PDF]
, 2003 Crop models need accurate simulation of the interdependent processes of crop development and leaf area production. Crop development proceeds according to genotype characteristics and environmental influences, specifically temperature and photoperiod.
Birch +27 more
core +2 more sources
Leaf appearance rate and phyllochron on millet sowing dates
REVISTA 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
Effect of nitrogen fertilizer placement on nitrogen uptake and yield of sweet corn (Zea mays L. saccharata) : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science in Plant Science at Massey University, New Zealand [PDF]
, 1986 Five placements of nitrogen fertilizer applied to sweet corn (Zea mays L. saccharata) at the four fully expanded leaf stage, that is control (no nitrogen), a band of nitrogen placed on the soil surface near the row, on the soil surface between the rows ...
Wongpichet, Kitti
core +4 more sources
Semantic Part Segmentation using Compositional Model combining Shape and Appearance [PDF]
, 2014 In this paper, we study the problem of semantic part segmentation for animals. This is more challenging than standard object detection, object segmentation and pose estimation tasks because semantic parts of animals often have similar appearance and ...
Wang, Jianyu, Yuille, Alan
core +2 more sources