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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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Interaction of temperature and daylength on leaf appearance rate in wheat and barley
Agricultural and Forest Meteorology, 1998A common way of describing wheat phenology during the leaf development stage is by reporting the number of leaves on the main stem. The ability to predict the timing of successive leaf appearance is important because it impacts on the timing of certain developmental stages of the plant and on the rate of leaf area expansion. Therefore, most crop models
J T Ritchie
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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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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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Leaf appearance rate of summer rape
Canadian Journal of Plant Science, 1991Leaf appearance rate (LAR) is defined as the slope of the regression of leaf number on time of appearance. LARs were calculated for summer rape using both calendar days (CD) and growing degree days (GDD) as measurements of time. The relationship between the number of leaves and GDD or CD was linear.
M. J. Morrison, P. B. E. McVetty
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Effects of photoperiod on leaf appearance rate and leaf dimensions in winter and spring wheats
Canadian Journal of Plant Science, 1996Research 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
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Temperature response function for leaf appearance rate in wheat and corn
Canadian Journal of Plant Science, 1999The 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 +2 more
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Role of Leaf Appearance Rate and the Coleoptile Tiller in Regulating Production
Crop Science, 1994Forage production in tall fescue (Festuca arundinacea Schreb.) depends on elongation of existing leaves and production of new leaves and tillers. Genetic selection for high leaf elongation rate (LER), however, results in plants with limited tillering capacity.
R. H. Skinner, C. J. Nelson
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