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Quantitative analysis of maize leaf collar appearance rates
Plant Physiology and Biochemistry, 2023Phyllochron, the reciprocal of the leaf appearance rate, is a critical genetic parameter in crop models for predicting growth characteristics and yield. Previous studies have shown that existing observations and predictive algorithms do not adequately represent a broad range of cultivars and environments.
Honggen Xu +6 more
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Rate of Leaf Appearance in Crimson Clover
Crop Science, 2002Understanding factors that affect growth and development of crimson clover ( Trifolium incarnatum L.) are important for the development of management practices to optimize forage utilization. In a 3‐yr field experiment at College Station, TX, we evaluated the effects of planting date on rate ...
Twain J., Butler +3 more
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Simulating Leaf Appearance in Rice
Agronomy Journal, 2008Most rice (Oryza sativa L.) simulation models assume that only temperature affects leaf appearance rate (LAR). This assumption ignores results from controlled environment studies that show that LAR in rice is not constant with time (calendar days) under constant temperature.
Nereu Augusto Streck +2 more
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Floral initiation, leaf initiation and leaf appearance in sunflower
Field Crops Research, 1993Abstract This paper examines the hypothesis that leaf number visible at floral initiation (LN n ) and final leaf number (FLN) are correlated in sunflower ( Helianthus annuus L.). The relationship between these variables is described by a model that takes into account the rate of leaf primordium initiation (RPI), the rate of leaf appearance (RLA) and
V.O. Sadras, F.J. Villalobos
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Leaf Appearance Rate and Final Leaf Number of Switchgrass Cultivars
Crop Science, 1997In switchgrass (Panicum virgatum L.), maximum yields occur with late flowering genotypes that have an extended duration of vegetative growth. However, little is known about the developmental basis for a long vegetative growth phase in perennial grasses.
G. A. Van Esbroeck +2 more
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Daylength change and leaf appearance in winter wheat
Plant, Cell and Environment, 1980Abstract In the field successive leaves of winter wheat appear at a rate which varies because it depends strongly upon temperature. When plotted against ‘thermal time’, however (temperature accumulated above a fixed base of 0°C), leaf appearance was a strictly linear function of temperature.
C. K. BAKER +2 more
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A leaf-mimicking moth uses nanostructures to create 3D leaf shape appearance
Current BiologyNature provides many astonishing examples of visual deception, from fish that resemble leaves to spiders and butterfly pupae that look like bird droppings or moth larvae that bear a striking resemblance to the head and neck of a tree snake.1,2 Most types of camouflage rely on preventing object detection, but this strategy of resemblance, known as ...
Jennifer L. Kelley +4 more
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Humidity does not appear to trigger leaf out in woody plants
International Journal of Biometeorology, 2017In order to anticipate the ecological impacts of climate change and model changes to forests, it is important to understand the factors controlling spring leaf out. Leaf out phenology in woody trees and shrubs is generally considered to be strongly controlled by a combination of spring warming, winter chilling requirement, and photoperiod.
Lucy Zipf, Richard B. Primack
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Leaf appearance and senescence patterns of some pasture species
Grass and Forage Science, 1995AbstractFive pasture species, very different in their morphological organization (four dicotyledons: Plantago lanceolata, Sanguisorba minor, Ranunculus repens, Taraxacum officinalis and one grass: Dactylis glomerata), were grown as spaced plants in pots, thus excluding competition for light, to study the proportion of senescent leaves.
Calvière, I., Duru, Michel
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Towards a Robust Method of Modelling Leaf Appearance in Plants [PDF]
, 1998 The thermal interval for leaf tip appearance (phyllochron) is a critical variable for modelling plant development and growth. Phyllochron varies across environments, but is generally constant for a species grown in specific environments. For example, the phyllochron in maize is lower in temperate environments than in tropical and subtropical ...
Birch, C., Vos, J., Kiniry, J.R.
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