Results 261 to 270 of about 1,233,302 (284)

Leaf Appearance Rate and Final Leaf Number of Switchgrass Cultivars

Crop Science, 1997
In 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, M. A. Hussey, M. A. Sanderson   +2 more
openaire   +1 more source

Daylength change and leaf appearance in winter wheat

Plant, Cell and Environment, 1980
Abstract 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, J. N. GALLAGHER, J. L. MONTEITH   +2 more
openaire   +1 more source

A leaf-mimicking moth uses nanostructures to create 3D leaf shape appearance

Current Biology
Nature 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, Anna-Lee Jessop, Mahdi K. Karahroudi, Gerd E. Schröder-Turk, Bodo D. Wilts   +4 more
openaire   +2 more sources

Humidity does not appear to trigger leaf out in woody plants

International Journal of Biometeorology, 2017
In 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, 1995
AbstractFive 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, 2003
Ten 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, Sayed N. Azam‐Ali, Jeremy A. Roberts   +2 more
openaire   +1 more source

Contribution of Leaf Expansion, Rate of Leaf Appearance, and Stolon Branching to Growth of Plant Leaf Area under Water Deficit in White Clover

Crop Science, 1996
Response of white clover (Trifolium repens L.) leaf area to water deficit depends on three processes: individual leaf expansion, phytomer production, and stolon branching. We have evaluated these processes in five clones under a wide range of conditions.
Belaygue, C., Wery, J., Cowan, A.A., Tardieu, Francois   +3 more
openaire   +2 more sources

Effect of Temperature on Time to Panicle Initiation and Leaf Appearance in Sorghum

Crop Science, 1998
Leaf‐tip appearance and duration from planting to panicle initiation (PI) are important developmental processes in cereals. This study was conducted to determine the effect of air temperature on rates of leaf‐tip appearance and 1/PI for sorghum [Sorghum bicolor (L.) Moench].
Peter Q. Craufurd, Aiming Qi, Richard H. Ellis, Rodney J. Summerfield, Eric H. Roberts, Vishwanathan Mahalakshmi   +5 more
openaire   +1 more source

Role of Leaf Appearance Rate and the Coleoptile Tiller in Regulating Production

Crop Science, 1994
Forage 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