Results 151 to 160 of about 1,793,943 (178)
Some of the next articles are maybe not open access.
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
openaire +1 more source
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
openaire +2 more sources
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
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
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.
openaire +1 more source
The Impact of Temperature on Leaf Appearance in Bambara Groundnut Landraces
Crop Science, 2003Ten bambara groundnut [Vigna subterranea (L.) Verdc] landraces of diverse origin were used to examine the effect of temperature on the rate of leaf appearance (RLA) and to determine the base temperature (Tb) among landraces. Knowledge of leaf development is required in breeding programs where crop morphological development is considered an important ...
Festo J. Massawe +2 more
openaire +1 more source
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
openaire +1 more source
Rate of leaf appearance in sugarcane, including a comparison of a range of varieties
Australian Journal of Plant Physiology, 1998Leaf appearance rate is a major determinant of canopy establishment, radiation interception and therefore yield. The effect of genotype on leaf appearance rate in sugarcane is largely unknown. Leaf appearance rate was recorded for the mainstems of pot grown sugarcane plants of nine commercial varieties, over 10 months in Townsville, Australia.
openaire +1 more source