Results 1 to 10 of about 230,116 (285)
Maize Leaf Appearance Rates: A Synthesis From the United States Corn Belt [PDF]
Frontiers in Plant Science, 2022 The relationship between collared leaf number and growing degree days (GDD) is crucial for predicting maize phenology. Biophysical crop models convert GDD accumulation to leaf numbers by using a constant parameter termed phyllochron (°C-day leaf−1) or ...
Caio L. dos Santos +7 more
doaj +5 more sources
Experimental and modeling evidence of carbon limitation of leaf appearance rate for spring and winter wheat. [PDF]
J Exp Bot, 2019 Accurate predictions of the timing of physiological stages and the development rate are crucial for predicting crop performance under field conditions. Plant development is controlled by the leaf appearance rate (LAR) and our understanding of how LAR responds to environmental factors is still limited.
Baumont M +6 more
europepmc +8 more sources
Italian Journal of Agronomy, 2017 In the present study, a two-year field trial was carried out with the aim to evaluate daylength and air temperature effects on leaf appearance and related rates in two durum wheat (Triticum durum Desf.), two bread wheat (Triticum aestivum L.) and two ...
Ezio Riggi +4 more
doaj +10 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
semanticscholar +4 more sources
Phyllochron and leaf appearance rate in oat [PDF]
Bragantia, 2017 Abstract Phyllochron and leaf appearance rate are both important parameters in the production efficiency of agricultural crops. The objectives of this study were to determine the phyllochron and leaf appearance rate in 4 oat cultivars (Avena sativa L.) in 3 sowing dates and verify the variability of phyllochron and leaf appearance rate among cultivars ...
Gabriela Görgen Chaves +8 more
semanticscholar +5 more sources
Temperature response function for leaf appearance rate in wheat and corn [PDF]
Canadian Journal of Plant Science, 1999 The ability to predict leaf appearance would enhance our capability of modeling plant development and the rate of leaf area expansion. Many crop models use the constant thermal time for successive leaf tip appearance (which is often termed a phyllochron) as one model parameter to predict total number of leaves and date of anthesis.
Y.W. Jame, H. Cutforth, J. T. Ritchie
semanticscholar +3 more sources
Daily Tall Fescue Leaf Appearance Rate in Relation to Environmental Factors [PDF]
HortScience, 1991 Methods for detecting and mathematically regressing daily tall fescue (Festuca arundinacea Schreb.) leaf appearance on environmental variables are presented. Morphological stages of leaf development were quantified and the rate of leaf appearance was linearly regressed on environmental variables.
L.B. McCarty, J. R. Haun, L. C. Miller
semanticscholar +3 more sources
Incorporating a Chronology Response into the Prediction of Leaf Appearance Rate in Winter Wheat [PDF]
Annals of Botany, 2003 The prediction of leaf appearance rate (LAR) is an important part of many crop simulation models. Most wheat simulations models assume that LAR is affected by temperature and photoperiod. This assumption ignores the fact that seed reserves contribute to a greater LAR of the first two leaves and that the LAR of subsequent leaves decreases as a result of
Nereu Augusto Streck
semanticscholar +4 more sources
Effects of photoperiod on leaf appearance rate and leaf dimensions in winter and spring wheats [PDF]
Canadian Journal of Plant Science, 1996 Research on genotypic variation in the response of leaf-area production and expansion to photoperiod in wheat is limited. Growth-cabinet experiments using four spring and four winter wheat (Triticum aestivum L.) cultivars and four photoperiod (8, 12, 16 and 20 h) treatments were thus conducted with the objective of investigating the effect of ...
S. Pararajasingham, L. A. Hunt
semanticscholar +3 more sources
Genotypic differences for temperature response of leaf appearance rate and leaf elongation rate in field-grown maize [PDF]
Agronomie, 1995 La mise en place du systeme foliaire est le principal facteur limitant le rendement dans les regions caracterisees par un printemps long et frais telles que l'Europe du Nord. L'objectif de ce travail etait d'etudier l'influence de la temperature sur le developpement et la croissance foliaires.
Catherine Giauffret +2 more
semanticscholar +7 more sources