Results 241 to 250 of about 1,794,042 (277)

Characterization and Agromorphological Variation in 27 Accessions of <i>Chenopodium quinoa</i> Within the Arid Coastal Zone of Peru. [PDF]

open access: yesPlants (Basel)
Checmapocco-Conza LE   +5 more
europepmc   +1 more source

Antiaging Potential of <i>Peronema canescens</i> Jack Leaf Extract: A Natural Ingredient in Topical Skincare Formulation. [PDF]

open access: yesDermatol Res Pract
Rahmiati   +10 more
europepmc   +1 more source

Modeling the date of leaf appearance in low‐arctic tundra

Global Change Biology, 2007
AbstractOne of the reported changes of arctic ecosystems in response to warming climate is the advance of the leaf appearance in spring. Such phenological changes play a role in the structural changes within tundra ecosystem communities. Recently, we developed a model that estimates the leaf appearance date for deciduous trees in taiga.
Nicolas Delbart, Ghislain Picard
exaly   +5 more sources

Prediction of leaf appearance in wheat: a question of temperature

Field Crops Research, 1995
Abstract The rate of leaf appearance in wheat depends on temperature. When the rate is expressed in thermal time based on air temperature, a marked contrast is apparent between autumn and spring sowings. This variation has often been attributed to a preconditioning response that determines the thermal phyllochron at about the time of emergence ...
D R Wilson, J R Porter, P D Jamieson
exaly   +3 more sources

Quantitative analysis of maize leaf collar appearance rates.

Plant Physiology and Biochemistry, 2023
Phyllochron, the reciprocal of the leaf appearance rate, is a critical genetic parameter in crop models for predicting growth characteristics and yield.
Honggen Xu   +6 more
semanticscholar   +3 more sources

Simulating Leaf Appearance in Rice

Agronomy Journal, 2008
Most 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.
N. Streck, L. C. Bosco, I. Lago
semanticscholar   +2 more sources

Comparison of models to simulate leaf appearance in wheat

European Journal of Agronomy, 1995
Prediction on of leaf appearance in cereals is important for modelling canopy development and timing crop management practices. Four models which aim to predict leaf emergence on the basis of temperature and, in three cases, photoperiod are compared against independent data from a wide range of sites, sowing dates and cultivars of spring and winter ...
Marco Bindi   +2 more
exaly   +3 more sources

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. Esbroeck, M. Hussey, M. Sanderson
semanticscholar   +2 more sources

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