Results 11 to 20 of about 20,590 (257)

Assessments of CO2 Assimilation on a Per-leaf-area Basis are Related to Total Leaf Area [PDF]

open access: yesJournal of the American Society for Horticultural Science, 2007
Net photosynthetic rates often are dependent on leaf size when expressed on a leaf-area basis (CO 2 assimilation as μmol·m −2 ·s −1 ).
Righetti, Timothy L.   +5 more
openaire   +2 more sources

Consistent responses of vegetation gas exchange to elevated atmospheric CO2 emerge from heuristic and optimization models [PDF]

open access: yesBiogeosciences, 2022
Elevated atmospheric CO2 concentration is expected to increase leaf CO2 assimilation rates, thus promoting plant growth and increasing leaf area. It also decreases stomatal conductance, allowing water savings, which have been hypothesized to drive large ...
S. Manzoni   +10 more
doaj   +1 more source

Efficiency of assimilating leaf area index into a soybean model to assess within-field yield variability

open access: yesEuropean Journal of Agronomy, 2022
Methods for accurately estimating within-field yield are essential to improve site-specific crop management and resource use efficiencies, which would be a major step toward sustainable intensification of agricultural systems. We set out to assess the accuracy of within-field soybean yields predicted by two data assimilation methods and to assess these
Gaso, Deborah V.   +5 more
openaire   +1 more source

Physiological and Structural Responses of Olive Leaves Related to Tolerance/Susceptibility to Verticillium dahliae

open access: yesPlants, 2022
Verticillium wilt of olive (VWO), caused by the soil borne fungus Verticillium dahliae, is one of the most relevant diseases affecting this crop worldwide. One of the best VWO management strategies is the use of tolerant cultivars.
Martina Cardoni   +3 more
doaj   +1 more source

The Joint Assimilation of Remotely Sensed Leaf Area Index and Surface Soil Moisture into a Land Surface Model [PDF]

open access: yesRemote Sensing, 2022
This work tests the hypothesis that jointly assimilating satellite observations of leaf area index and surface soil moisture into a land surface model improves the estimation of land vegetation and water variables. An Ensemble Kalman Filter is used to test this hypothesis across the Contiguous United States from April 2015 to December 2018.
Azbina Rahman   +5 more
openaire   +2 more sources

Leaf Nitrogen Traits in Response to Plant Density and Nitrogen Supply in Oilseed Rape

open access: yesAgronomy, 2020
Understanding the response of plant nitrogen (N) and carbon (C) economies in oilseed rape, as well as their role in defining phenotypic plasticity, is necessary for designing new strategies to optimize plant and canopy C assimilation to improve potential
Marcelo H. Labra   +3 more
doaj   +1 more source

Global Assimilation of Remotely Sensed Leaf Area Index: The Impact of Updating More State Variables Within a Land Surface Model

open access: yesFrontiers in Water, 2022
As vegetation regulates water, carbon, and energy cycles from the local to the global scale, its accurate representation in land surface models is crucial.
Azbina Rahman   +4 more
doaj   +1 more source

Variable Fall Climate Conditions on Carbon Assimilation and Spring Phenology of Young Peach Trees

open access: yesPlants, 2020
Variable fall temperature and moisture conditions may alter leaf senescence of deciduous fruit trees, influencing carbon assimilation before dormancy and phenology the following spring.
Brian T. Lawrence, Juan Carlos Melgar
doaj   +1 more source

The influence of assimilating leaf area index in a land surface model on global water fluxes and storages [PDF]

open access: yesHydrology and Earth System Sciences, 2019
Abstract. Vegetation plays a fundamental role not only in the energy and carbon cycles but also in the global water balance by controlling surface evapotranspiration (ET). Thus, accurately estimating vegetation-related variables has the potential to improve our understanding and estimation of the dynamic interactions between the water, energy, and ...
Xinxuan Zhang   +7 more
openaire   +3 more sources

Growth index in massai grass under different levels of nitrogen fertilization

open access: yesRevista Brasileira de Zootecnia, 2011
This study aimed to evaluate the growth index of massai grass during two regrowth cycles in a greenhouse under five levels of nitrogen (0, 150, 300, 450 and 600 mg N/dm³ of soil) and eight growth ages (5, 8, 11, 14, 17, 20, 23 and 26 days) in a split ...
Marcos Neves Lopes   +5 more
doaj   +1 more source

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