Results 91 to 100 of about 1,806,142 (292)
Vegetation density as deduced from ERTS-1 MSS response [PDF]
Reflectance from vegetation increases with increasing vegetation density in the 0.75- to 1.35 micron wavelength interval. Therefore, ERTS-1 bands 6 (0.7 to 0.8 micron) and 7 (0.8 to 1.1 micron) contain information that should relate to the probable yield
Cuellar, J. A. +4 more
core +1 more source
Snow tussocks, chaos, and the evolution of mast seeding [PDF]
, 2002 One hitherto intractable problem in studying mast seeding (synchronous intermittent heavy flowering by a population of perennial plants) is determining the relative roles of weather, plant reserves, and evolutionary selective pressures such as predator ...
Bjørnstad, O.N., Kelly, D., Rees, M.
core +1 more source
Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer
FEBS Letters, EarlyView.Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani +4 more
wiley +1 more source
Performance of Maize Hybrids for Grain Yield Under Different Planting Arrangements
CropsThe aim of this study was to evaluate the agronomic performance of eight maize hybrids under different plant densities for grain yield in the North and Northwest regions of Rio de Janeiro State, Brazil.
Vivane M. L. Gonçalves +4 more
doaj +1 more source
Hurst Coefficient in long time series of population size: Model for two plant populations with different reproductive strategies [PDF]
, 2010 Can the fractal dimension of fluctuations in population size be used to estimate extinction risk? The problem with estimating this fractal dimension is that the lengths of the time series are usually too short for conclusive results.
ADELA SALVADOR +10 more
core +2 more sources
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
Journal of Agriculture and Rural Development in the Tropics and Subtropics, 2011 Water shortage is one of the major constraints for production of horticultural crops in arid and semiarid regions. A field experiment was conducted to determine irrigation water and fertilizer use efficiency, growth and yield of tomato under clay pot ...
Kebede Woldetsadik +2 more
doaj
, 2011 An introduced or exotic species is commonly defined as an organism accidentally or intentionally introduced to a new location by human activity (Williamson 1996; Richardson et al. 2000; Guo and Ricklefs 2010).
Guo, Qinfeng
core +2 more sources
Function‐driven design of a surrogate interleukin‐2 receptor ligand
FEBS Letters, EarlyView.Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang +9 more
wiley +1 more source
GROWTH AND YIELD OF CASTOR BEAN (Ricinus communis L.) CV. ‘BRS ENERGIA’ UNDER DIFFERENT SPACINGS
Tropical and Subtropical Agroecosystems, 2017 The use of appropriate spacing when planting large crops is a technology that can be very easily applied, and that can result in a significant increase in yield.
Alexandre Bosco de Oliveira +3 more
doaj